final i2c catalogue for pdf - E-LAB Computers

I 2 C bus 

serial data 

serial clock 

Quarndon Electronics 

Quarndon Electronics Ltd. Slack Lane Derby DE22 3ED tel: 01332 332651 fax: 01332 360922 

email: sales@quarndon.co.uk website: www.quarndon.co.uk

Contents 

3 

3 

4 

4 

5 

5 

6 

6 

7 

7 

8 

8 

9 

9 

Philips Semiconductor I2C Devices 

Typical I2C Product Characteristics 

I 2 C Bus Basics - Address and Data 

I 2 C General Purpose I/O Expanders 

I 2 C LED Drivers and Blinkers 

I 2 C Bus Extenders 

I 2 C Switches 

I 2 C Bus Repeater and Hub 

PCA9518, Expandable 5-Channel I2C Hub 

I 2 C Hot Swap Bus Buffer 

I 2 C Analog / Digital Converter 

Parallel Bus to I2C Bus Controller 

Multiplexed/Latched I2C EEPROMs 

I 2 C Multiplexers 

10 

part2 

11 

11 

12 

12 

13 

13 

14 

14 

15 

16 

16 

17 

18 

19 

19 

20 

20 

22 

22 

23 

Real-time Clock/calendar PCF8563 

Clock/calendar with Power Fail Detector PCF8573 

Clock/calendar with 240 x 8-bit RAM PCF8583 

Low power clock/calendar PCF8593 

8-bit / 16-bit I/O expander for I2C PCF8574, 8575 

I 2 C bus Controller PCF8584 

CMOS I2C EEPROMS PCF8582, 8594, 8598, 85116 

Low Voltage 258 x 8 - bit RAM PCF8570C 

8-bit A/D and D/A Converter PCF8591 

Universal LCD driver for low multiplex rates PCF8576C 

LCD Direct/Duplex Driver with I2C PCF8577C 

LCD row/column driver for dot matrix displays PCF8578, 8579 

Universal LCD driver for low multiplex rates PCF8566 

I 2 C Bus extender P82B715 

4 Digit LED-driver with I2C-Bus interface SAA1064 

CMDS 8-bit Microcontrollers P80C 552 

Philips P87C 524 / 528 

Philips P80C 652 / 587C652, 87C654 

PCompact 80C51 with I2C P87C 751 

Compact 80C51 with Analogue I/O P87C 752 

email sales@quarndon.co.uk | website www.quarndon.co.uk 2

Philips Semiconductor I 2 C Devices 

• TV Reception 

• Radio Reception 

• Audio Processing 

• Infrared Control 

• DTMF 

• LCD display control 

• LED display control 

• Clocks/ timers 

• General Purpose I/ O 

• Bus Extension/ Control 

• A/ D and D/ A Converter 

• RAM 

• EEPROM 

• Hardware Monitors 

• TV Reception 

• Radio Reception 

• Audio Processing 

• Infrared Control 

• DTMF 

• LCD display control 

• LED display control 

• Clocks/ timers 

• 8 bit Microprocessors 

• 16 bit Microprocessors 

I 2 C devices are broken down 

into 16 different categories 

Focus on display and timing 

categories 

www.semiconductors. 

philips.com/I 2 C 

Real Time Clock 

LCD Driver 

• 

Type of function in device 

Description 

0M4085 96 segment LCD driver 16 

PCF2103 

24 character LCD controller/driver 

2 

PCF2104 


2 

PCF2105 


2 

PCF2113 

24 character +120 icon LCD controller/driver 

2 

PCF2116 


2 

PCF2119 


2 

PCF8531 

34 x 128 graphic LCD controller/driver 

2 

PCF8533 

320 segment LCD driver 

16 

PCF8535 

(65 + icon row) x 133 graphic LCD controller/driver 

4 

PCF8548 


2 

PCF8549 


2 

PCF8558 • 40 x 101 graphic LCD controller/driver 

2 

PCF8563 • ultra low power real time clock/calendar 

1 

PCF8566 • 96 segment LCD driver 

16 

PCF8573 • real time clock/calendar with power fail detector 

4 

PCF8576C 


16 

PCF8577C 


16 

PCF8578 

384+ segment LCD driver 

2 

PCF8579 • 384+ segment LCD driver 

2 

PCF8583 

real time clock/calendar with 240 x 8 bit RAM 

2 

PCF8593 • low power real time clock/calendar 

1 

PCF8811 


4 

PCF8813 

67 x 101 4 greyscale graphic LCD controller/driver 

4 

PCF8814 


4 

PCF8820 

67 x 101 4 greyscale graphic LCD controller/driver 

4 

PCF8831 

160 x 128RGB 256 colour STN controller/driver chipset 4 

PCF8832 

160 x 128RGB 256 colour STN controller/driver chipset 4 

Addresses 

Interrupt (Out) 

Hardware reset 

1 

1 

1 

1.0 

1.8 

Vcc Range (V) 

2.5 

3.3 

5 

5V tolerant 

100 

Features 

FREQ(kHz) 

2 

• • 

•••••••• • 

• •••••••••• • 

• 

• 

• • 

• • • 

••••••••••••••• • 

8 

• • 

• 

16 

1.1 

• • 

• 

8 

8 

• 

1.5 

• • 

•• • 

1.5 

• • •••••••••••••••••••••••••• • 

• 

• 

• 

1.5 

• • • • 

• 

400 

3400 

TEMP 

40 to 85 ºC 

Pin count 

Bare die 

TCP 

Other 

Packages 

DIP 

VSO40 

LQFP100 

P 

P T 

VS040 

P 

T 

LQFP64/VS056 

LQFP64 

LQFP64/VS056 

P 

P 

SO (narrow) 

T 

T 

SO (wide) 

TSSOP 

Typical I 2 C product chart 

DP 

Typical I 2 C Product Characteristics 

• Frequency Range 

Typically 100 kHz operation with newer general purpose devices operating up to 400 kHz to 

support newer, higher frequency applications. 

• Operating Supply Voltage Range 

2.5 to 5.5 V or 2.7 to 5.5V with newer devices at 2.3 to 5.5V or 3.0 to 3.6V with 5V tolerance 

• Operates on both I 2 C and SMBus 

• Operating temperature range 

Typically -40 to +85 ºC with some 0 to +70 ºC or 0 to +120 ºC 

• Hardware address pins 

Typically three (A O, A 1, A 2) are provided to allow up to eight of the identical device on the 

same I 2 C bus but sometimes due to pin limitations there are fewer 

• Package Offerings 

Typically older devices in DIP, SO or SSOP. New devices will be offered only in SO and 

TSSOP and with future devices in TVSOP or MLP 

3 

Quarndon Electronics Ltd. | tel 01332 332651 | fax 01332 360922

I 2 C Bus Basics - Address and Data 

SCL 

I/O 

A/D 

D/A 

LCD 

RTC 

µcontroller 

µcontroller 

II 

SDA 

Each device is addressed 

individually by software with a 

unique address that can be 

modified by hardware pins 

1010A 1 A 2 A 3 R/W 

A0 

A1 

A2 

new 

function 

New devices or functions 

can be easily clipped on 

to an existing bus! 

Write data 

Master 

Slave 

S slave address W A data A data A P 

transmitter 

receiver 

Read data 

< n data bytes > 

S slave address R A data A data A P 

receiver 

transmitter 

< n data bytes > last data byte 

Data is transmitted at speeds of 100kHz, 400kHz or 3.4 MHz. 

S = Start condition 

A = Acknowledge 

P = Stop condition 

I 2 C General Purpose I/O Expanders 

• Used for general-purpose input and output 

(GPIO) extension from the I 2 C/SMBus. 

• Connect parallel I/O to the serial I 2 C/SMBus 

and provide expansion capability for te I/O 

controller Hub (South Bridge). 

• Four sets registers for: 

- Configuration (I or O) 

- Input (value) 

- Output (value) 

- Polarity (active high or low) 

• Devices have either Interrupt or Hardware Reset pin. 

• PCA9554, 8-bit I 2 C and SMBus I/O Port with Interrupt 

I 2 C Bus 

Interrupt Pin 

Reset Pin 

Input 

keypad or switch 

Output 

relay or enable pin or 

LED 


• PCA9554A, 8-bit I 2 C and SMBus I/O Port with Interrupt 


• PCA9556, Octal SMBus and I 2 C Registered Interface 

• PCA9557, Octal SMBus and I 2 C Registered Interface 

# of Outputs 

Reset and POR Interrupt and POR POR and 2K EEPROM Interrupt and POR and 2K EEPROM 

Quasi Output (20-25 ma sink and 100 uA source) 

8 - 

PCA9556/57 

PCA9556/57 

PCA9556/57 

16 

- PCF8575 

- - 

True Output (20-25 ma sink and 10 mA source) 

8 

16 

PCA9556/57 

- 

PCA9556/57A 

PCA9555 

PCA9558 

- 

- 

- 


I 2 C LED Drivers and Blinkers 

• Used for general-purpose LED driving and blinking 

• Internal oscillator, no external components required. 

• Two user definable blink rates and duty cycles. 

• Single transmission to turn LEDs on, off, or blink at 

one of the two programmable blink rates. 

• I 2 C/SMBus not tied up by sending repeated 

transmissions to blink LEDs. 

• Hardware Reset pin. 

• High current open drain outputs. 

I 2 C Bus 

Reset Pin 

Oscillator 

Output 

LED 

Input 

LED 

• PCA9550, 2-Bit I 2 C/SMBus LED Driver and Blinker 

• PCA9551, 8-bit I 2 C/SMBus LED Driver and Blinker 

• PCA9552, 16-bit I 2 C/SMBus LED Driver and Blinker 

# of Outputs 

2 

8 

16 

Reset and POR 

PCA9550 

PCA9551 

PCA9552 

I 2 C Bus Extenders 

+V CC = 15V 

+V CC = 15V 

+5V 1k 

1k 

+5V 

SDA 

Tx 

Tx 

SI 

Rx 

* 15V Note: Schottky 15V * 

Rx 

diode or Zener clamps 

may be needed to limit 

spurious signals on 

1/2 P82B96 very long wiring 

1/2 P82B96 

* 

+V CC +V CC1 

KEY POINTS 

• High drive output are used to extend the reach of the I 2 C bus and 

exceed the 400 pF/system limit. 

• Typical distances - twisted wire (310’), Flat Ribbon Cable (1320’) 

• P82B96 has split high drive outputs which allows differential 

transmission and Opto-Electrical isolation of the I 2 C Bus 

I 2 C 

SDA 

+5V 

RxD 

(SDA) 

TxD 

(SDA) 

I 2 C 

SDA 

1/2 P82B96 

N.C. 

1 

8 

V CC 

Ex 

1 

8 

V CC 

L X 

S X 

GND 

2 

3 

4 

P82B715 

7 

6 

5 

L Y 

S Y 

N.C. 

Rx 

Tx 

GND 

2 

3 

4 

P82B96 

7 

6 

5 

S Y 

R Y 

Ty 

5 


I 2 C Switches 

I 2 C Bus 

OFF 

I 2 C Bus 0 

I 2 C Bus 1 

Reset 

Interrupt Out 

I 2 C 

Controller 

OFF 

Interrupt 0 

Interrupt 1 

FEATURES 

• Fan out main I 2 C/SMBus to multiple channels 

• Select off or individual downstream channels one at a 

time, all at once or in any combination. 

• I 2 C/SMBus commands used to select channel 

• Hardware Reset pin or POR opens all channels 

• Interrupt logic provides flag to master 

KEY POINTS 

• Switches allow the master to communicate to one 

channel or multiple downstream channels at a time but 

don’t isolate the bus capacitance 

• Other Applications include: sub-branch isolation and 

I 2 C/SMBus level shifting (1.8, 2.5, 3.3 or 5.0V) 

I 2 C Bus Repeater and Hub 

400 

pf 

SCL0 

SCA0 

PCA9515 

SCL1 

SCA1 

400 

pf 

Enable 

400 

pf 

400 

pf 

400 

pf 

SCLO 

SCAO 

SCL1 

SDA1 

E1 

SCL2 

SDA2 

GND 

1 

2 

3 

4 

5 

6 

7 

8 

PCA9516 

16 

15 

14 

13 

12 

11 

10 

9 

V CC 

E4 

SDA4 

SCL4 

E3 

SDA3 

SCL3 

E2 

400 

pf 

400 

pf 

I 2 C Bus Repeater 

5-Channel I 2 C Hub 

FEATURES 

• Bi-directional I 2 C drivers isolate the I 2 C bus 

capacitance to each segment. 

• Multi-master capable (e.g., repeater transparent to bus 

arbitration and contention protocol) with only one 

repeater delay between segments. 

• Segments can be individually isolated 

KEY POINTS 

• Accommodate more I 2 C devices or a longer bus length 

(i.e., up to 400 pF/segment) 

• Voltage Level Translation - 3.3V or 5V voltage 

levels allowed on the segment. 

• Only one hub or repeater is allowed in a I 2 C system 


PCA9518, Expandable 5-Channel I 2 C Hub 

Interconnect 

Bus 

Enables 

9518 

9518 9518 9518 9518 

I 2 C/SMBus 

1 2 3 4 

5 6 7 8 9 10 11 12 13 14 15 16 

17 18 19 20 

• Similar to the PCA9516 but with four extra open drain signal pins that allow the internal device logic to be 

interconnected into an unlimited number of segments with only one repeater delay between any two segments. 

• The PCA9518, like the PCA9515/16, is transparent to bus arbitration and contention protocols in a multi-master 

environment and any master can talk to any other master on any segment. 

• The enable pins can be used to isolate four of the five segments per device. Place a pull up resistor on the 

unisolatable segment and leave it unused if there is a requirement to enable or disable the segment. 

I 2 C Hot Swap Bus Buffer 

Enable 

SCLOUT 

SCLIN 

GND 

VCC 

SDAOUT 

SDAIN 

READY 

PCA9511 

Heart Microprocessor 

Terminators 

Backplane Trace 

Connectors 

• Allows I/O card insertion into a live backplane without corruption of the data and clock busses. 

• Control circuitry prevents connected to the card until a stop bit or bus idle occurs on the backplane. 

• After connection, bidirectional buffering isolates capacitance and allowing 400 pF on either side. 

• PCA9511 can be used in series and more than one can be used in the same I 2 C system. 

• Rise time accelerator allows use of weaker DC pull- up currents while still meeting rise time requirements. 

• SDA and SCL lines are precharged to 1V, minimising current required to charge chip parasitic capacitance. 

• Incorporates a digital ENABLE input pin, which forces the part into a low current mode when asserted low. 

• Open drain READY output pin indicates that the backplane and card sides are connected together. 

7 


I 2 C Analog / Digital Converter 

V REF 

Analog GND 

OSC Input switch 

Oscillator I/O 

Reset 

I 2 C Bus 

Analogue Input-Output 

Features 

• 4 channel 

• Internal oscillator 

• Hardware Reset pin and Power On Reset (POR) 

KEY POINTS 

• Converts signals from digital to analog and analog to digital 

• Two programmable thresholds above and below mean 

Voltage range Max I 2 C freq Resolution 

PCA8591 2.5 - 5.5V w/5V tolerance 100 kHz 100 kHz 

Parallel Bus to I 2 C Bus Controller 

I 2 C Bus 

I 2 C Interface 

Operation 

Control 

Control 

Bus Buffer 

Chip Enable 

Write Strobe 

Read Strobe 

Reset 

Address Inputs 

Interrupt Request 

Data (8-bits) 

Microcontroller 

FEATURES 

• Provides both master and slave functions. 

• Controls all the I 2 C bus specific sequences, protocol, arbitration and timing 

• Hardware Reset pin and Power On Reset (POR) 

KEY POINTS 

• Serves as an interface between most standard parallel-bus microcontrollers/ microprocessors and the serial I 2 C bus 

• Allows the parallel bus system to communicate with the I 2 C 

PCA8584 

PCA9564 

Voltage range Max I 2 C freq Clock source Parallel interface 

4.5 - 5.5V 90 kHz 

External 

Slow 

2.3 - 3.6V w/5V tolerance 360 kHz 

Internal 

Fast 


Multiplexed/Latched I 2 C EEPROMs 

I 2 C Bus 

Hardware 

Input Pins 

EEPROM 

Mux 

Non MUX 

Output Pin 

Hardware 

Output Pins 

• Replacement for jumpers or dip switches. 

• I 2 C controlled integrated EEPROM and Multiplexer 

eliminates need to open equipment to modify 

jumpers/dip switches by hand. 

• Multiplex between the default values or the setting 

programmed from the I 2 C bus and stored in the onboard 

I 2 C EEPROM register. 

• The non-volatile I 2 C EEPROM register values stay 

resident even when the device is powered down. 

• PCA8550, 4-bit Multiplexed/I-bit 

Latched 5-bit EEPROM 

• PCA9559, 5-bit 

Multiplexed/I-bit Latched 6-bit EEPROM 

• PCA9560, Dual 5-bit 

Multiplexed/I-bit Latched EEPROM 

• PCA9561, Quad 6-bit Multiplexed EEPROM 

PCA8550 

PCA9559 

PCA9560 

PCA9561 

# of Non Volatile registers # of register bits # of hardware input bits # of Muxed output Non-muxed output 

1 5 

4 4 YES 

1 

2 

4 

6 

6 

6 

5 

5 

6 

5 

5 

6 

YES 

YES 

NO 

I 2 C Multiplexers 

I 2 C Bus 0 

I 2 C Bus 1 

I 2 C 

Controller 

Interrupt 0 

Interrupt 1 

FEATURES 

• Fan out main I 2 C/SMBus to multiple channels 

• Select off or individual downstream channel 

• I 2 C/SMBus commands used to select channel 

• Power On Reset (POR) opens all channels 

• Interrupt logic provides flag to master for system 

monitoring. 

KEY POINTS 

• Many specialised devices have only one I 2 C address and 

sometimes many are needed in the same system. 

• Multiplexers allow the master to communicate to one downstream 

channel at a time but don’t isolate the bus capacitance 

• Other Applications include sub-bach isolation. 

# of Channels POR Only Interrupt Logic and POR 

2 PCA9540 

PCA9542 

4 

- 

PCA9544 

9 


p a r t 2

Real-time Clock/calendar PCF8563 

CLK OUT 

DESCRIPTION 

The PCF8563 is a CMOS real-time clock/calendar 

optimized for low power consumption. A 

programmable clock output, interrupt output and 

voltage-low detector are also provided. The built-in 

word address register is incremented automatically 

after each written or read data byte. 

FEATURES 

• Provides year, month, day, weekday, hours, minutes 

and seconds based on 32.768 kHz quartz crystal 

• Century flag 

• Wide operating supply voltage range: 1.0 to 5.5V 

• Low back-up current; typical 0.25µA at VDD = 3.0V 

and Tamb = 25ºC 

• 400 kHz two-wire I 2 C-bus interface 

(at VDD = 1.8 to 5.5V) 

• Programmable clock output for 

32.768 kHz, 1.24 Hz, 32 Hz 1 Hz 

• Alarm and timer functions 

• Integrated oscillator capacitor 

• Internal power-on reset 

OSCI 

OSCO 

INT 

VSS 

VSS 

SCL 

SDA 

Type number 

PCF8563P/F4 

PCF8563T/F4 

PCF8563TS/F4 

PCF8583 

Oscillator 

32.768 kHz 

Voltage 

Detector 

Oscillator 

Monitor 

I 2 C-BUS 

Interface 

Package 

DIP 8 

SO 8 

TSSOP 8 

POR 

Divider 

1:256 

or 

100 : 128 

Control 

logic 

Address 

FF register 

OSCI 

OSCO 

INT 

V SS 

1 

2 

3 

4 

control/status 1 

control/status 1 

second/VL 

minutes 

hours 

days 

weekdays 

months/century 

years 

minute alarm 

hour alarm 

day alarm 

weekday alarm 

clkout control 

timer control 

timer 

PCF8563P 

PCF8563T 

PCF8563TS 

8 

7 

6 

5 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

A 

B 

C 

D 

E 

F 

V DD 

CLKOUT 

SCL 

SDA 

slave address 

1 0 1 0 0 0 A0 R/W 

Clock/calendar with Power Fail Detector PCF8573 

DESCRIPTION 

The PCF8573 is a low threshold, 

CMOS circuit that functions as a 

real time clock/calendar. 

A0 

A1 

1 

2 

16 

15 

V DD 

V SS1 

The IC incorporates an 

addressable time counter and an 

addressable alarm register for 

minutes, hours, days and months. 

COMP 

SDA 

SCL 

EXTPF 

3 

4 

5 

6 

PCF8573P 

PCF8573T 

14 

13 

12 

11 

OSC0 

OSC1 

TEST 

FSET 

PFIN 

7 

10 

SEC 

FEATURES 

• Serial output I 2 C-bus 

• Alarm register for presetting 

a time for alarm or remote 

switching functions 

• On-chip power fail detector 

• Additional pulse outputs for seconds and minutes 

• Separate ground pin for the clock allows easy implementation 

of battery back-up during supply interruption 

• 1.2V nickel cadmium battery 

• Crystal oscillator control (32.768 kHz) 

• Low power consumption 

Type number 

PCF8573P 

PCF8573T 

slave address 

Package 

DIP 16 

SO 16 

V SS2 

8 

9 

MIN 

1 1 0 

1 0 A1 A0 R/W 

11 


Clock/calendar with 240 x 8-bit RAM PCF8583 

DESCRIPTION 

The PCF8583 is a clock/calendar circuit based on a 

256 x 8-bit static CMOS RAM. The built-in word 

address register is incremented automatically after 

each written or read data byte. Address pin AO is 

used for programming the hardware address, allowing 

the connection of two devices to the bus without 

additional hardware.The built-in 32.768 kHz oscillator 

circuit and the first 8 bytes of the RAM are used for 

the clock/calendar and counter functions. The next 8 

bytes may be programmed as alarm registers or used 

as free RAM space. The remaining 240 bytes are free 

RAM locations. 

OSCI 

OSCO 

INT 

VSS 

VSS 

A0 

SCL 

SDA 

PCF8583 

Oscillator 

32.768 kHz 

Power-on 

reset 

I 2 C-BUS 

Interface 

Divider 

1:256 

or 

100 : 128 

Control 

logic 

Address 

FF register 

control/status 

hundredth of a second 

second 

minutes 

hours 

year/date 

weekdays/months 

timer 

alarm control 

alarm registers 

or RAM 

RAM 

(240 x 8) 

00 

01 

07 

08 

0F 

FF 

FEATURES 

• Clock operating supply voltage 

(0 to +70 ºC): 1.0 V to 6.0 V max. 50µA 

• 240 x 8-bit low-voltage RAM 

• Data retention voltage: 1.0 V to 6 V 

• Clock function with four year calendar 

• Universal timer with alarm and overflow indication 

• 24 or 12 hour format 

• 32.768 kHz or 50 Hz time base 

• Slave address: - READ: A1 or A3 

- WRITE: A0 or A2 

Type number 

PCF8583P/F5 

PCF8583T/F5 

Package 

DIP 8 

SOL 8 

slave address 

OSCI 

OSCO 

A0 

V SS 

1 

2 

3 

4 

PCF8583P 

PCF8583T 

8 

7 

6 

5 

V DD 

INT 

SCL 

SDA 

1 0 1 

0 0 0 A0 R/W 

Low power clock/calendar PCF8593 

DESCRIPTION 

The PCF8593 is a CMOS clock/calendar circuit, 

optimized for low power consumption. The built-in word 

address register is incremented automatically after 

each written or read data byte. The built-in 32.768 kHz 

oscillator circuit and the first 8 bytes of RAM are used 

for the clock/calendar and counter functions. The next 

8 bytes may be programmed as alarm registers or 

used as free RAM space. 

OSCI 

OSCO 

INT 

reset 

PCF8583 

Oscillator 

32.768 kHz 

reset 

Divider 

1:256 

or 

100 : 128 

Control 

logic 

control/status 

hundredth of a second 

second 

minutes 

hours 

year/date 

weekdays/months 

timer 

alarm control 

00 

01 

07 

08 

SCL 

SDA 

I 2 C-BUS 

Interface 

Address 

FF register 

alarm registers 

or RAM 

0F 

FEATURES 

• Operating supply voltage: 2.5 to 6.0 V 

• 8 bytes scratchpad RAM (when alarm not used) 

• Data retention voltage: 1.0 to 6.0 V 

• Operating current (fscl = 0 Hz, 32 kHz time base, 

VDD = 2.0 V): TYP. 1µA 

• Clock function with four year calendar 

• Universal timer with alarm and overflow indication 

• 24 or 12 hour format 

• 32.768 kHz or 50 Hz time base 

• Automatic word address incrementing 

• Slave address: - READ A3 

- WRITE A2 

Type number 

PCF8593P 

PCF8593T 

Package 

DIP 8 

SO 8 

slave address 

1 0 1 0 0 0 1 R/W 

OSCI 

OSCO 

RESET 

V SS 

1 

2 

3 

4 

PCF8593P 

PCF8593T 

8 

7 

6 

5 

V DD 

INT 

SCL 

SDA 


8-bit / 16-bit I/O expander for I 2 C PCF8574, 8575 

DESCRIPTION 

The devices consist of an 8-bit/16- 

bit quasi-bidirectional port and an 

I 2 C-bus interface. The 

PCF8574/8575 have a low current 

consumption and include latched 

outputs with high current drive 

capability for directly driving LEDs. 

It also possesses an interrupt line 

(INT) which can be connected to 

the interrupt logic of the 

microcontroller. 

INT 

A0 

A1 

A2 

SCL 

SDA 

VDD 

VSS 

Input filter 

Power-on 

reset 

Interrupt logic 

I 2 C-BUS control 

PCF8574 

Shift 

Register 

Write pulse 

Read pulse 

LP Filter 

Input filter 

I/O 

Port 

4 

5 

6 

7 

8 

9 

10 

11 

P0 

P1 

P2 

P3 

P4 

P5 

P6 

P7 

A0 

A1 

A2 

P0 

P1 

P2 

P3 

V SS 

1 

2 

3 

4 

5 

6 

7 

8 

PCF8574 

PCF8574A 

16 V DD 

15 SDA 

14 

SCL 

13 INT 

12 P7 

11 P6 

10 P5 

9 

P4 

The PCF8574 and PCF8574A 

versions differ only in their slave 

address. The PCF8574A has an 

additional address bit, therefore 16 

devices can be addressed as 

opposed to 8. 

FEATURES 

• I 2 C to parallel port expander 

• Open-drain interrupt output 

• Remote I/O port for for the I 2 C-bus 

• Operating supply voltage 2.5 to 6V PCF8574 

• Low standby current consumption of 

10µA maximum 

slave address for 8574/8575 

0 1 0 0 A2 A1 A0 R/W 

slave address for 8574A 

0 1 1 1 A2 A1 A0 R/W 

PCF8575 is identical except that it has 16 I/O 

Part No. 

PCF8574AP 

PCF8574AT 

PCF8574P 

PCF8574T 

PCF8575CTS/F1 

PCF8575CT/F1 

Package 

DIP 16 

SOL 16 

DIP 16 

SOL 16 

SSOP 24 

SOL 24 

INT 

A1 

A2 

P00 

P01 

P02 

P03 

P04 

P05 

P06 

P07 

V SS 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

PCF8575C 

24 

23 

22 

21 

20 

19 

18 

17 

16 

15 

14 

13 

V DD 

SDA 

SCL 

A0 

P17 

P16 

P15 

P14 

P13 

P12 

P11 

P10 

I 2 C bus Controller PCF8584 

DESCRIPTION 

The PCF8584 acts as an interface device between standard high-speed 

parallel buses and the serial I 2 C-bus. On the I 2 C-bus, it can act either as 

master or slave. Bidirectional data transfer between the I 2 C-bus and the 

parallel-bus microcontroller is carried out on a byte-wise basis, using either 

an interrupt or polled handshake. Interface to either 80XX-type (e.g. 8048, 

8051, Z80) or 68000-type buses is possible. Selection of bus type is 

automatically performed. 

ADDRESS BUS 

A0 

ALE DECODER CS 

8048/8051 

DATA 

8048/8051 

RD 

FEATURES 

• Parallel-bus to I 2 C-bus protocol converter 

and interface 

• Compatible with most parallel-bus 

microcontrollers 

• Both master and slaver functions 

• Automatic detection and adaption to bus 

interface type 

• Programmable interrupt vector 

• Multi-master capability 

• I 2 C-bus monitor mode 

• Long-distance mode (4-wire) 

• Operating supply voltage 4.5 to 5.5 V 

CLK 1 

SDA 2 

SCL 3 

IACK 4 

INT 5 

A0 6 

DB0 7 

DB1 8 

DB2 9 

V SS 10 

PCF8584 

20 

19 

18 

17 

16 

15 

14 

13 

12 

11 

V DD 

RESET 

R/W 

CS 

RD 

DB7 

DB6 

DB5 

DB4 

DB3 

Part No. 

PCF8584P 

PCF8884T 

WR 

INT 

Package 

DIP 20 

SOL 20 

slave address 

0 1 1 1 A2 A1 A0 R/W 

13 


CMOS I 2 C EEPROMS PCF8582, 8594, 8598, 85116 

acknowledge 

from slave 

acknowledge 

from slave 

acknowledge 

from slave 

acknowledge 

from slave 

DESCRIPTION 

This family of CMOS I2C EEPRoms covers 

formats 256x8,512x8, 1024x8 and 2048x8. 

Address select pins allow for a total of 2048 bytes 

of memory made up from 8 PCF8582, 4 

PCF8594, 2 PCF8598 on a single PCF85116. The 

PCF85116 has a second address field which 

allows selection of one of eight 256 byte blacks. 

When WP is taken high the upper half of a 

PCF8594, PCF8598 and the whole of PCF85116 

is write-protected. 

FEATURES 

• Max standby 10µA at 5.5V typical 4µA 

• Operational down to 2.7V 

• Single on 8 byte write modes 

(PCF85116 up to 32 bytes) 

• Sequential on Random Read 

• High Reliability by using redundant cells 

• Internal Write Times 

• Write Protect 

slave address 

1 0 1 0 A2 A1 A0 R/W 

S 

SLAVE ADDRESS 0 A WORD ADDRESS A S SLAVE ADDRESS 

R/W 

Type number 

PCF8582C-2P/03 

PCF8582C-2T/03 

PCF8594C-2P/02 

PCF8594C-2T/02 

PCF8598C-2P/02 

PCF8598C-2T/02 

PCF85116-3P/01 

PCF85116-3T/01 

at this moment master 

transmitter becomes master 

receiver and EEPROM slave 

receiver becomes slave 

transmitter 

Master reads PCF85xxC-2 slave after setting word 

address (write word address; read data) 

Package 

DIP 8 

SO 8 

DIP 8 

SO 8 

DIP 8 

SOL 8 

DIP 8 

SO 8 

Format 

256x8 

256x8 

512x8 

512x8 

1024x8 

1024x8 

2048x8 

2048x8 

1 A 

R/W 

n bytes 

auto increment word address 

no acknowledge 

from slave 

DATA 1 P 

n bytes 

DATA 

auto increment word address 

Max Current 

2.0µA 

2.0µA 

2.5µA 

2.5µA 

4.0µA 

4.0µA 

1.0µA 

1.0µA 

A 

A0 

1 

8 

V DD 

WP 

1 

8 

V DD 

WP 

1 

8 

V DD 

n.c. 

1 

8 

V DD 

A1 

A2 

2 

3 

PCF8582C-2 

7 

6 

PTC 

SCL 

A1 

A2 

2 

3 

PCF8594C-2 

7 

6 

PTC 

SCL 

n.c. 

A2 

2 

3 

PCF8598C-2 

7 

6 

PTC 

SCL 

n.c. 

n.c. 

2 

3 

PCF85116-3 

7 

6 

WP 

SCL 

V SS 

4 

5 

SDA 

V SS 

4 

5 

SDA 

V SS 

4 

5 

SDA 

V SS 

4 

5 

SDA 

Low Voltage 258 x 8 - bit RAM PCF8570C 

VDD 

DESCRIPTION 

The PCF85700C is ideal for applications requiring 

extremely low-current and low-voltage RAM retention, 

such as battery or capacitor - backed. See diagram for a 

typical multiple PCF8570C application. 

0 

A0 

0 

A1 

0 

A2 

TEST 

VDD 

PCF8570C 

‘1010’ 

SCL 

SDA 

VSS 

SDA 

Master 

transmitter/ 

SCL receiver 

FEATURES 

• Operating supply voltage 2.5 

to 6.0 V 

• Low data retention voltage; 

minimum 1.0 V 

• Low standby current; 

maximum 15 µA 

• Power-saving mode; typical 

50 nA 

• Serial input/output bus 

(I 2 C-bus) 

• Address by 3 hardware 

address pins 

• Automatic word address 

incrementing 

A0 

A1 

A2 

V SS 

1 

2 

3 

4 

Type number 

PCF8570P/F5 

PCF8570T/F5 

8570C 

8 

7 

6 

5 

V DD 

TEST 

SCL 

SDA 

Package 

DIP 8 

SOL 8 

slave address 

1 0 1 0 A2 A1 A0 R/W 

VDD 

1 

A0 

0 

A1 

0 

1 

A0 

1 

A1 

1 

A2 

TEST 

A2 

TEST 

VDD 

PCF8570C 

‘1010’ 

VDD 

PCF8570C 

‘1010’ 

SCL 

SDA 

VSS 

SCL 

SDA 

VSS 

SDA SCL 

(I 2 C-bus) 

up to 8 PCF8570C 

V DD 

R: pull-up resistor 

R R 

t r 

R = 

C BUS 


8-bit A/D and D/A Converter PCF8591 

DESCRIPTION 

The PCF8591 is a low power 8-bit CMOS data 

acquisition device with four analog inputs, one 

analog output. Three address pins A), A1 and A2 

are used for programming the hardware address, 

allowing the use of up to eight devices. 

The functions of the device include analog input 

multiplexing, on-chip track and hold function, 8-bit 

analog-to-digital conversion and an 8-bit digital-toanalog 

conversion. The maximum conversion rate is 

given by the maximum speed of the I 2 C-bus. 

SCL 

SDA 

A0 

A1 

A2 

EXT 

VDD 

VSS 

OSC 

I 2 C BUS 

Interface 

Analogue 

multi-plexer 

Oscillator 

Status 

register 

Control logic 

Dac data 

register 

ADC data 

register 

AIN0 

AIN1 

AIN2 

AIN3 

Analogue 

multi-plexer 

S/H 

+ 

comparator 

- 

Successive approximation 

register/logic 

FEATURES 

• Single power supply 

• Operating supply voltage 2.5 V to 6 V 

• Low standby current 

• Serial input/output via I 2 C-bus 

• Address by 3 hardware address pins 

• Sampling rate given by I 2 C-bus speed 

• 4 analog inputs programmable as single-ended or 

differential inputs 

• Auto-incremented channel selection 

• Analog voltage range from VSS to VDD 

• On-chip track and hold circuit 

• 8-bit successive approximation A/D conversion 

• Multiplying DAC with one analog 

AOUT 

S/H 

DAC 

VREF 

AGND 

AIN0 

1 

16 

V DD 

AIN1 

2 

15 

AOUT 

AIN2 

3 

PCF8591 

14 

VREF 

AIN3 

4 

13 

AGND 

A0 

5 

12 

EXT 

A1 

6 

11 

OSC 

A2 

7 

10 

SCL 

V SS 

8 

9 

SDA 

Type number 

PCA8591P 

PCA8591T 

Package 

DIP 16 

SO16 

slave address 

1 0 0 

1 A2 A1 A0 R/W 

15 


Universal LCD driver for low multiplex rates PCF8576C 

SDA 

1 

56 

S39 

DESCRIPTION 

The PCF8576C is a versatile peripheral device designed to interface to any microprocessor / 

microcontroller to a wide variety of LCDs. It can directly drive any static or multiplexed LCD 

containing up to four backplanes and up to 40 segments. The display configurations possible with 

the PCF8576C depend on the number of active backplane outputs required; a selection of 

display configurations is given in Table 1. 

SCL 

SYNC 

CLK 

V DD 

OSC 

A0 

A1 

2 

3 

4 

5 

6 

7 

8 

55 

54 

53 

52 

51 

50 

49 

S38 

S37 

S36 

S35 

S34 

S33 

S32 

A2 

9 

48 

S31 

SA0 

10 

VS056 

47 

S30 

FEATURES 

• Selectable backplane drive configuration: static or 2, 3,or 4 backplane multiplexing 

• Selectable display bias configuration: static, 1/2 or 1/3 

• Internal LCD bias generation with voltage-follower buffers 

• 40 segment drives: up to twelve 8-segment numeric characters; up to six 15-segment alphanumeric 

characters; or any graphics of up to 160 elements 

• Versatile blinking modes 


V SS 

11 

V LCD 12 

BP0 13 

BP2 14 

BP1 15 

BP3 16 

S0 17 

S1 18 

S2 19 

46 

45 

44 

43 

42 

41 

40 

39 

38 

S29 

S28 

S27 

S26 

S25 

S24 

S23 

S22 

S21 

S3 

20 

37 

S20 

VDD 

VDD 

VLCD 

S4 

21 

36 

S19 

Type number 

PCF8576CT/F1 

PCF8576CH/F1 

Package 

VS056 

LQFP64 

Host microprocessor/ 

microcontroller 

SDA 

SCL 

OSC 

1 

2 

3 

7 

5 12 

PCF8576CT 

8 9 10 11 

A0 A1 A2 SA0 VSS 

40 segment drives 

4 backplanes 

LCD panel 

(up to 160 

elements) 

S5 

S6 

S7 

S8 

22 

23 

24 

25 

35 

34 

33 

32 

S18 

S17 

S16 

S15 

VSS 

S9 

26 

31 

S14 

slave address 

0 1 1 1 0 0 A0 R/W 

S10 

S11 

27 

28 

30 S13 

29 S12 

LCD Direct/Duplex Driver with I 2 C PCF8577C 

DESCRIPTION 

The PCF8577C is a single chip, CMOS circuit, It is designed to drive liquid crystal displays 

with up to 32 segments directly, or 64 segments in a duplex configuration. 

S32 

S31 

S30 

1 

2 

3 

40 

39 

38 

SDA 

SCL 

V SS 

S29 

4 

37 

A0/OSC 

FEATURES 

• Direct/duplex drive modes with up to 32/64 LCD-segment drive capability per device 

• Auto-incremented loading across device subaddress boundaries 

• Operating supply voltage: 2.5 to 6 V 


• Single-pin built-in oscillator 

• Display memory switching in direct drive mode 

• Power-on reset blanks display 

Type number 

PCF8577CP 

PCF8577CT 

Package 

DIP40 

VSO40 

S28 

S27 

S26 

S25 

S24 

S23 

5 

6 

7 

8 

9 

10 

PCF8577C 

36 

35 

34 

33 

32 

31 

A1 

V DD 

A2/BP2 

BP1 

S1 

S2 

S22 

11 

30 

S3 

SCL 

SDA 

39 

40 

Input 

filters 

I 2 C - Bus 

controller 

Segment byte registers 

and multiplex logic 

Backplane 

and 

segment 

driver 

1 

32 

33 

S32 

S1 

BP1 

S21 

S20 

S19 

S18 

12 

13 

14 

15 

29 

28 

27 

26 

S4 

S5 

S6 

S7 

VDD 

35 

34 

36 

37 

A2/BP2 

A1 

A0/OSC 

S17 

S16 

16 

17 

25 

24 

S8 

S9 

VSS 

38 

Power on reset 

PCF8577C 

Control register 

and comparator 

Oscillator and 

divider 

slave address 

0 1 1 1 0 1 0 R/W 

S15 

S14 

S13 

18 

19 

20 

23 

22 

21 

S10 

S11 

S12 


LCD row/column driver for dot matrix displays PCF8578, 8579 

DESCRIPTION 

The PCF8578 is a low power 

CMOS LCD row/column driver, 

designed to drive dot matrix 

graphic displays at multiplex 

rates of 1 : 8, 1 : 16, 1 : 24 or 1 : 

32. The device has 40 outputs, 

of which 24 are programmable, 

configurable as 32 /8 , 24 /16 , 

16 /24 or 8 /32 rows/columns. 

The PCF8578 can function as a 

stand-alone LCD controller/driver 

for use in small systems, or for 

larger systems can be used in 

conjunction with up to 32 

PCF8579s for which it has been 

optimized. Together these two 

devices form a general purpose 

LCD dot matrix driver chip set, 

capable of driving displays of up 

to 40960 dots. 

V DD 

R1 

C 

V 2 

HOST 

MICROCONTROLLER 

SCL 

SDA 

V SS 

C 

C 

C 

C 

R2 

R3 

R2 

R1 

V LCD 

R OSC 

V DD 

V 3 

V 4 PCF8578 

V 5 

V LCD 

V SS 

OSC 

n 

rows 

SA0 

SDA SCL CLK SYNC 

40 n 

columns 

V DD V DD 

V LCD 

V LCD 

subaddress 1 

V SS V SS 

V SS / V DD 

V SS / V DD 

V SS / V DD 

LCD DISPLAY 

SA0 

SDA 

SCL 

40 

columns 

A0 

A1 

PCF8579 

A2 

A3 

CLK SYNC V 4 V 3 

FEATURES 

• Stand-alone or may be used 

with up 32 PCF857s (40960 

dots possible) 

• 40 driver outputs, configurable 

as 32/8, 24/16, 16/24 or 8/32 

row/columns 

• Selectable multiplex rates; 

1 : 8, 1 : 16, 1 : 24 or 1 : 32 

• Provides display 

synchronisation for PCF8579 

• On-chip oscillator, requires 

only 1 external resistor 

• Power-on reset black display 

th 

R5 1 

R4 2 

R3 3 

R2 4 

R1 5 

R0 6 

SDA 7 

SCL 8 

SYNC 9 

CLK 10 

V SS 11 

TEST 12 

SA0 13 

n.c. 14 

n.c. 15 

OSC 16 

n.c. 17 

64 R6 

n.c. 18 

63 R7 

n.c. 19 

62 R8/C8 

V DD 20 

61 R9/C9 

V 2 21 

60 R10/C10 

22 

59 R11/C11 

V 3 

58 R12/C12 

57 R13/C13 

56 R14/C14 

55 R15/C15 

54 R16/C16 

53 R17/C17 

PCF8578 

LQFP64 

V 4 23 

V 5 24 

V LCD 25 

n.c. 26 

n.c. 27 

n.c. 28 

C39 29 

52 R18/C18 

C38 30 

51 R19/C19 

C37 31 

50 R20/C20 

C36 32 

49 R21/C21 

48 R22/C22 

47 n.c. 

46 R23/C23 

45 R24/C24 

44 R25/C25 

43 R26/C26 

42 R27/C27 

41 R28/C28 

40 R29/C29 

39 R30/C30 

38 R31/C31 

37 C32 

36 n.c. 

35 C33 

34 C34 

33 C35 

MBH588 

SDA 

SCL 

SYNC 

CLK 

V 

SS 

TEST 

SA0 

OSC 

V DD 

V 2 

V 3 

V 4 

V 5 

V LCD 

n.c. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

56 

55 

54 

53 

52 

51 

50 

49 

48 

47 

46 

45 

13 44 

14 

43 

PCF8578 

15 

42 

R0 

R1 

R2 

R3 

R4 

R5 

R6 

R7 

R8/C8 

R9/C9 

R10/C10 

R11/C11 

R12/C12 

R13/C13 

R14/C14 

SDA 

SCL 

SYNC 

CLK 

V 

SS 

TEST 

SA0 

A3 

A2 

A1 

A0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

56 

55 

54 

53 

52 

51 

50 

49 

48 

47 

46 

V DD 12 

45 

n.c. 13 44 

V 3 14 

43 

PCF8579 

V 4 15 

42 

C0 

C1 

C2 

C3 

C4 

C5 

C6 

C7 

C8 

C9 

C10 

C11 

C12 

C13 

C14 

agewidth 

C6 

C7 

C8 

C9 

C10 

C11 

C12 

C13 

C14 

C15 

C16 

C17 

C18 

C19 

C20 

C21 

n.c. 16 

41 

R15/C15 

V LCD 16 

41 

C15 

C5 1 

C4 2 

64 

63 

62 

61 

60 

59 

58 

57 

56 

55 

54 

53 

52 

51 

50 

49 

48 C22 

47 C23 

C39 

C38 

17 

18 

40 

39 

R16/C16 

R17/C17 

C39 

C38 

17 

18 

40 

39 

C16 

C17 

Type number 

PCF8578T 

PCF8578H 

PCF8579T 

PCF8579H 

Package 

VS056 

LQFP64 

VS056 

LQFP64 

C3 3 

C2 4 

C1 5 

C0 6 

SDA 7 

SCL 8 

SYNC 9 

CLK 10 

V SS 11 

TEST 12 

SA0 13 

A3 14 

n.c. 15 

LQFP64 

PCF8579 

46 C24 

45 C25 

44 C26 

43 C27 

42 C28 

41 C29 

40 C30 

39 C31 

38 C32 

37 C33 

36 C34 

35 C35 

34 n.c. 

C37 

C36 

C35 

C34 

C33 

C32 

R31/C31 

R30/C30 

19 

20 

21 

22 

23 

24 

25 

26 

38 

37 

36 

35 

34 

33 

32 

31 

R18/C18 

R19/C19 

R20/C20 

R21/C21 

R22/C22 

R23/C23 

R24/C24 

R25/C25 

C37 

C36 

C35 

C34 

C33 

C32 

C31 

C30 

19 

20 

21 

22 

23 

24 

25 

26 

38 

37 

36 

35 

34 

33 

32 

31 

C18 

C19 

C20 

C21 

C22 

C23 

C24 

C25 

A2 16 

33 C36 

R29/C29 

27 

30 

R26/C26 

C29 

27 

30 

C26 

17 

A1 

18 

A0 

19 

n.c. 

20 

V DD 

21 

n.c. 

22 

V 3 

23 

V 4 

24 

V LCD 

25 

n.c. 

26 

n.c. 

27 

n.c. 

28 

n.c. 

29 

n.c. 

30 

C39 

31 

C38 

32 

C37 

MBH590 

R28/C28 

28 

MSA839 

29 

R27/C27 

C28 

28 

MSA918 

29 

C27 

slave address 

0 1 1 

1 1 0 A0 R/W 

17 


Universal LCD driver for low multiplex rates PCF8566 

DESCRIPTION 

The PCF8566 is a peripheral device which interfaces to almost 

any Liquid Crystal Display (LCD) having low multiplex rates. It 

generates the drive signals for any static or multiplexed LCD 

containing up to four backplanes and up to 24 segments and can 

easily be cascaded for larger LCD applications. 

S32 

SCL 

SYNC 

CLK 

V DD 

1 

2 

3 

4 

5 

PCF8566 

40 

39 

38 

37 

36 

S23 

S22 

S21 

S20 

S19 

OSC 

6 

35 

S18 

FEATURES 

• Single-chip LCD controller/driver 

• Selectable backplane drive configuration: static or 2, 3,or 4 back 

plane multiplexing 

• Selectable display bias configuration: static, 1/2 or 1/3 

• Internal LCD bias generation with voltage-follower buffers 

• 24 segment drives: up to twelve 8-segment numeric characters; uo 

to six 15-segment alphanumeric characters; or any graphics of up to 

96 elements 

• Versatile blinking modes 

• 2.5 to 6V power supply range 


• May be cascaded for large LCD applications 

(up to 1536 segments possible) 

A0 

A1 

A2 

SA0 

V SS 

V LCD 

BP0 

BP2 

BP1 

BP3 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

34 

33 

32 

31 

30 

29 

28 

27 

26 

25 

S17 

S16 

S15 

S14 

S13 

S12 

S11 

S10 

S9 

S8 

S0 

17 

24 

S7 

Type number 

PCF8566P 

PCF8566T 

Package 

DIP 40 

SO 40 

slave address 

0 1 1 1 1 1 A0 R/W 

S1 

S2 

S3 

18 

19 

20 

23 

22 

21 

S6 

S5 

S4 

h 

BP0 BP2 BP1 BP3 

S0 to S23 

V DD 

5 

R 

13 

14 

15 

BACKPLANE 

OUTPUTS 

16 

17 to 40 

DISPLAY SEGMENT OUTPUTS 

R 

LCD 

VOLTAGE 

SELECTOR 

DISPLAY LATCH 

V LCD 

12 

R 

LCD BIAS 

GENERATOR 

SHIFT REGISTER 

CLK 

SYNC 

OSC 

V SS 

4 

3 

6 

11 

TIMING 

OSCILLATOR 

BLINKER 

POWER- 

ON 

RESET 

PCF8566 

DISPLAY 

CONTROLLER 

COMMAND 

DECODER 

INPUT 

BANK 

SELECTOR 

DISPLAY 

RAM 

24 × 4 BITS 

DATA 

POINTER 

OUTPUT 

BANK 

SELECTOR 

SCL 

SDA 

2 

1 

INPUT 

FILTERS 

2 

I C-BUS 

CONTROLLER 

SUB- 

ADDRESS 

COUNTER 

10 

7 

8 

9 

SA0 

A0 

A1 

A2 


I 2 C Bus extender P82B715 

DESCRIPTION 

The 82B715 is a bipolar integrated 

circuit intended for application in 

I 2 C bus systems. 

While retaining all the operating 

modes and features of the I 2 C 

system it permits extension of the 

practical separation distance 

between components on the I 2 C 

bus by buffering both the data 

(SDA) and the clock (SCL) lines. 

SDA 

SCL 

STANDARD 

I 2 C 

INTERFACE 

82B715 

1/2 

1/2 

V CC 

V CC 

BUFFERED 

INTERFACE 

LONG 

CABLE 

LDA 

LCL 

BUFFERED 

INTERFACE 

82B715 

1/2 

1/2 

SDA 

SCL 

STANDARD 

I 2 C 

INTERFACE 

I 2 C 

DEVICE 

The I 2 C bus capacitance limit of 

400pF restricts practical 

communication distances to a few 

meters. Using one 82B715 at each 

end of longer cables reduces the 

cable loading capacitance on the 

I 2 C 

SDA 

SCL 

82B715 

V CC 

BUFFER 

BUFFER 

LDA 

LCL 

N.C. 

L X 

S X 

1 

2 

3 

82B715 

8 

7 

6 

V CC 

L Y 

S Y 

GND 

4 

5 

N.C. 

FEATURES 

• Dual, bi-directional, unity voltage gain buffet 

• I 2 C bus compatible 

• Logic signal levels may include both supply and ground 

• X10 impedance transformation 

• Wide supply voltage range 

GND 

Type number 

P82B715N 

P82B715D 

Package 

DIP 40 

SO 40 

4 Digit LED-driver with I 2 C-Bus interface SAA1064 

DESCRIPTION 

The LED-driver is a bipolar integrated circuit 

made in an I 2 L compatible 18 volts process. The 

circuit is especially designed to drive four 7- 

segment LED displays with decimal point by 

means of multiplexing between two pairs of 

digits. It features an I 2 C-Bus slave transceiver 

interface with the possibility to program four 

different SLAVE ADDRESSES, a POWER 

RESET flag, 16 current sink OUTPUTS, 

controllable by software up to 21mA, two 

multiplex drive outputs for common anode 

segments, an on-chip multiplex drive outputs for 

common anode segments, an on-chip multiplex 

oscillator, control bits to select static, dynamic 

and blank mode, and one bit for segment test. 

Part No. 

SAA1064 

SAA1064T 

Package 

DIP 24 

SOL 24 

slave address 

0 1 1 

1 0 A1 A0 R/W 

19 


CMDS 8-bit Microcontrollers P80C 552 

DESCRIPTION 

The PCF8577C is a single chip, 

silicon gate CMOS circuit, It is 

designed to drive liquid crystal 

displays with up to 32 segments 

directly, or 64 segments in a 

duplex configuration. 

The two-line I 2 C-bus interface 

substantially reduces wiring 

overheads in remote display 

applications. I 2 C-bus traffic is 

minimised in multiple IC 

applications by automatic 

address incrementing, hardware 

subaddressing and display 

memory switching (direct drive 

mode). To allow partial VDD 

shutdown the ESD protection 

system of the SCL and SDA pins 

does not use as diode 

connected to VDD. 

XTAL1 

XTAL2 

EA 

ALE 

PSEN 

3 

WR 

3 

RD 

0 

AD0-7 

2 

A8-15 

T0 T1 INT0 INT1 

3 3 3 3 

T0, T1 

TWO 16-BIT 

TIMER/EVENT 

COUNTERS 

80C51 CORE 

EXCLUDING 

ROM/RAM 

PARALLEL I/O 

PORTS AND 

EXTERNAL BUS 

CPU 

SERIAL 

UART 

PORT 

3 3 

V DD 

PROGRAM 

MEMORY 

8k x 8 ROM 

8-BIT 

PORT 

16 

8-BIT INTERNAL BUS 

FOUR 

16-BIT 

CAPTURE 

LATCHES 

P0 P1 P2 P3 TxD RxD P5 P4 CT0I-CT3I T2 RT2 CMSR0-CMSR5 

CMT0, CMT1 

V SS 

DATA 

MEMORY 

256 x 8 RAM 

T2 

16-BIT 

TIMER/ 

EVENT 

COUNTERS 

PWM0 PWM1 AV SS AV ADC0-7 SDA SCL 

REF 

– + STADC 5 1 1 

AVDD 

16 

DUAL 

PWM 

T2 

16-BIT 

COMPARA- 

TORS 

wITH 

REGISTERS 

ADC 

COMPARA- 

TOR 

OUTPUT 

SELECTION 

1 1 1 4 

RST 

SERIAL 

I 2 C PORT 

T3 

WATCHDOG 

TIMER 

EW 

FEATURES 

• Direct/duplex drive modes with 

up to 32/64 

• LCD-segment drive capability 

per device 

• Operating supply voltage: 2.5 

to 6 V 


• I 2 C-bus interface 

• Optimized pinning for single 

plane wiring 

• Single-pin built-in oscillator 

• Auto-incremented loading 

across device 

subaddress boundaries 

• Display memory switching in 

direct drive mode 

• May be used as I 2 C-bus output 

expander 

• System expansion up to 256 

segments 

• Power-on reset blanks display 

P4.3/CMSR3 

P4.4/CMSR4 

P4.5/CMSR5 

P4.6/CMT0 

P4.7/CMT1 

RST 

P1.0/CT0I 

P1.1/CT1I 

P1.2/CT2I 

P1.3/CT3I 

P1.4/T2 

P1.5/RT2 

P1.6/SCL 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

P4.2/CMSR2 

P4.1/CMSR1 

P4.0/CMSR0 

EW 

PWM1 

PWM0 

STADC 

V DD 

9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 

P5.0/ADC0 

P5.1/ADC1 

P5.2/ADC2 

P5.3/ADC3 

P5.4/ADC4 

PLASTIC LEADED CHIP CARRIER 

P5.5/ADC5 

P5.6/ADC6 

P5.7/ADC7 

AV DD 

61 

60 

59 

58 

57 

56 

55 

54 

53 

52 

51 

50 

49 

48 

AV SS 

AV REF+ 

AV REF– 

P0.0/AD0 

P0.1/AD1 

P0.2/AD2 

P0.3/AD3 

P0.4/AD4 

P0.5/AD5 

P0.6/AD6 

P0.7/AD7 

EA 

ALE 

P1.7/SDA 

23 

47 

PSEN 

P3.0/RxD 

24 

46 

P2.7/A15 

P3.1/TxD 

25 

45 

P2.6/A14 

Part No. 

P80C552 EBA108 

P80C552 IBA108 

Package 

PLCC-68 

PLCC-68 

P3.2/INT0 

26 

27 

P3.3/INT1 

28 29 

P3.4/T0 

P3.5/T1 

30 31 32 33 34 35 36 

P3.6/WR 

P3.7/RD 

NC* 

NC* 

XTAL2 

XTAL1 

V SS 

37 38 

V SS 

NC* 

39 40 41 42 43 

P2.0/A08 

P2.1/A09 

P2.2/A10 

P2.3/A11 

P2.4/A12 

44 

P2.5/A13 


Philips P87C 524 / 528 

DESCRIPTION 

The 87C524 and P87C528 are CMOS 

single-chip 8-bit microcontrollers. 

• 80C51 instruction set 

- P87C524 - 16k x 8 EPROM 

- 512 x 8 RAM 

- P87C528 - 324 x 8 EPROM 

- Memory addressing capability 

64k ROM and 64k RAM 

- Three 16-bit counter/timer 

- Full duplex UART 

• Power control modes: 

- Idle mode 

- Power-down mode 

- Warm start from power-down 

• Two speed ranges at VCC = 5V ±10% 

FREQUENCY 

REFERENCE 

XTAL2 XTAL1 

OSCILLATOR 

AND 

TIMING 

CPU 

INT0 INT1 CONTROL 

EXTERNAL 

INTERRUPTS 

INTERNAL 

INTERRUPTS 

PROGRAM 

MEMORY 

(32K x 8 

EPROM) 

64K-BYTE BUS 

EXPANSION 

CONTROL 

RAM 

DATA 

MEMORY 

(256 x 8) 

PROGRAMMABLE I/O 

AUX–RAM 

DATA 

MEMORY 

(256 x 8) 

PARALLEL PORTS, 

ADDRESS/DATA BUS 

AND I/O PINS 

SERIAL IN 

COUNTERS 

T0 

T1 

TWO 16-BIT 

TIMER/EVENT 

COUNTERS 

PROGRAMMABLE 

SERIAL PORT 

FULL DUPLEX UART 

SYNCHRONOUS SHIFT 

SHARED WITH 

PORT 3 

SERIAL OUT 

T2 T2EX RST 

16-BIT TIMER/ 

EVENT COUNTER 

BIT-LEVEL 

I 2 C 

INTERFACE 

SDA 

SCL 

WATCHDOG 

TIMER 

Part No. 

P87C524EBPN 

P87C528EBLKA 

P87C528EBPN 

P87C528LKA 

Package 

DIP-40 

PLCC-44 

DIP-44 

PLCC-44 

1 

22 V SS V DD 

6 1 40 

T2/P1.0 

40 

44 

7 

39 

T2EX/P1.1 

P1.2 

2 

3 

39 

38 

LCC 

P1.3 

P1.4 

4 

5 

37 

36 

17 

29 

18 28 

P1.5 

SCL/P1.6 

6 

7 

35 

34 

SDA/P1.7 8 

33 

Pin Function Pin Function 

1 NC* 

23 NC* 

RST 9 

32 

2 P1.0/T2 

24 P2.0/A8 

RxD/P3.0 10 DUAL 

3 P1.1/T2EX 25 P2.1/A9 

IN-LINE 

4 P1.2 

26 P2.2/A10 

TxD/P3.1 11 

PACKAGE 

5 P1.3 

27 P2.3/A11 

31 

30 

6 P1.4 

28 P2.4/A12 

INT0/P3.2 12 

29 

7 P1.5 

29 P2.5/A13 

8 P1.6/SCL 30 P2.6/A14 

INT1/P3.3 13 

28 

9 P1.7/SDA 31 P2.7/A15 

10 RST 

32 PSEN 

T0/P3.4 14 

27 

11 

13 

P3.0/RxD 

P3.1/TxD 

33 

35 

ALE 

EA 

12 

14 

NC* 

P3.2/INT0 

34 

36 

NC* 

P0.7/AD7 

T1/P3.5 15 

WR/P3.6 16 

26 

25 

15 P3.3/INT1 37 P0.6/AD6 

RD/P3.7 17 

24 

16 P3.4/T0 

38 P0.5/AD5 

17 P3.5/T1 

39 P0.4/AD4 

XTAL2 18 

23 

18 P3.6/WR 40 P0.3/AD3 

19 P3.7/RD 

41 P0.2/AD2 

XTAL1 19 

22 

20 XTAL2 

42 P0.1/AD1 

21 XTAL1 

43 P0.0/AD0 

V SS 20 21 

V DD 

P0.0/AD0 

P0.1/AD1 

P0.2/AD2 

P0.3/AD3 

P0.4/AD4 

P0.5/AD5 

P0.6/AD6 

P0.7/AD7 

EA 

ALE 

PSEN 

P2.7/A15 

P2.6/A14 

P2.5/A13 

P2.4/A12 

P2.3/A11 

P2.2/A10 

P2.1/A9 

P2.0/A8 

21 


Philips P80C 652 / 587C652, 87C654 

DESCRIPTION 

The P80C652/P87C652/P87C654 Single-Chip 8- 

Bit Microcontrollers is manufactured in an 

advanced CMOS process and is a derivative of the 

80C51 microcontroller family. The 80C652/83C652 

has the same instruction set as the 80C51. Three 

versions of the derivative exist: 

RST 

XTAL1 

XTAL2 

EA 

PSEN 

ALE 

V DD V SS 

PORT 0 

ADDRESS AND 

DATA BUS 

P1.0 

P1.1 

P1.2 

P1.3 

P1.4 

1 

2 

3 

4 

5 

40 

39 

38 

37 

36 

V DD 

P0.0/AD0 

P0.1/AD1 

P0.2/AD2 

P0.3/AD3 

80C652 - ROMless version 

87C652 - 8K EPROM version 

87C654 - 16K EPROM 

This device provides architectural enhancements 

that make it applicable in a variety of applications 

for general control systems. 

ALTERNATE 

FUNCTIONS 

PORT 3 

RxD 

TxD 

INT0 

INT1 

T0 

T1 

WR 

RD 

PORT 1 

PORT 2 

SCL 

SDA 

ADDRESS BUS 

P1.5 6 

SCL/P1.6 7 

SDA/P1.7 8 

RST 9 

RxD/P3.0 10 

TxD/P3.1 11 

INT0/P3.2 12 

INT1/P3.3 13 

PLASTIC 

DUAL 

IN-LINE 

PACKAGE 

35 

34 

33 

32 

31 

30 

29 

28 

P0.4/AD4 

P0.5/AD5 

P0.6/AD6 

P0.7/AD7 

EA 

ALE 

PSEN 

P2.7/A15 

T0/P3.4 14 

27 

P2.6/A14 

FEATURES 

• 80C51 central processing unit 

• 256 y 8 RAM, expandable externally 

to 64k bytes 

• Two standard 16-bit timer/counters 

• Four 8-bit I/O ports 

• I 2 C-bus serial I/O port with byte oriented master 

and slave functions 

• Full-duplex UART facilities 

Part No. 

P87C652-4N40 

P80C652EBA/04 

P87C654-4A44 

P87C654-4N40 

Package 

DIP-40 

PLCC-44 

PLCC-44 

DIP-44 

T1/P3.5 15 

26 

WR/P3.6 16 

25 

RD/P3.7 17 

24 

XTAL2 

XTAL1 

18 

19 

23 

22 

V 20 21 

SS 

P2.5/A13 

P2.4/A12 

P2.3/A11 

P2.2/A10 

P2.1/A9 

P2.0/A8 

PCompact 80C51 with I 2 C P87C 751 

T0 INT0 INT1 

1 1 1 

V CC V SS PWM out 

DESCRIPTION 

• 2K program memory 

• 64 bytes RAM 

• 5V ±10% operation 

• 16-bit auto reloadable 

counter/timer 

• Wide oscillato 

frequency range 

• Low power 

consumption 

- Idle mode 

- Power-down mode 

• LED drive outputs 

• On-chip oscillator 

XTAL1 

XTAL2 

0 ASEL 

0 0E-PGM 

3 

A0-A10 

1 

D0-D7 

Used for 

programming only 

TIMER 0 & 

TIMER 1* 

(87C749*) 

Parallel 

I/O Ports 

CPU 

Program 

memory 2K 

EPROM 

8-bit internal bus 

I 2 C 

Serial 

Port 

0 

1 

3 

DATA 

Memory 

64 x 8 

RAM 

Alternate function of Port 0 



P3.4/A4 

P3.3/A3 

P3.2/A10 

P3.1/A1/A9 

P3.0/A0/A8 

P0.2/VPP 

*P0.1/OE-PGM/SDA 

*P0.0/ASEL/SCL 

RST 

X2 

X1 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

Ceramic, 

plastic 

dual 

and 

shrink 

small 

outline 

package 

24 

23 

22 

21 

20 

19 

18 

17 

16 

15 

14 

VCC 

P3.5/A5 

P3.6/A6 

P3.7/A7 

P1.7/T0/D7 

P1.6/INT1/D6 

P1.5/INT0/D5 

P1.4/D4 

P1.3/D3 

P1.2/D2 

P1.1/D1 

P0.0-P0.4 P0.0-P0.4 SDA SCL 

P3.0-P3.7 

0 0 

VSS 

12 

13 

P1.0/D0 

Part No. 

P87C751-4F24 

P87C751-4DB 

P87C751-4N24 

Package 

DIL-25 

SSOP-44 

DIP-44 


Compact 80C51 with Analogue I/O P87C 752 

DESCRIPTION 

The Philips P87C752 offers many of the 

advantages of the 80C51 architecture in 

a small package and at low cost. 

The P87C752 contains a EPROM, a 64 y 

8 RAM, 21 I/O lines, a 16-bit auto-reload 

counter/timer, a fixed-priority level 

interrupt structure, a bidirectional interintegrated 

circuit (I 2 C) serial bus 

interface, an on-chip oscillator, a five 

channel multiplexed 8-bit A/D converter, 

and an 8-bit PWM output. 

FEATURES 

• Inter-integrated Circuit (I 2 C) 

serial bus interface 

• Small package sizes 

– 28-pin DIP, PLCC 02SSOP 

Wide oscillator frequency range 

• Low power consumption: 

– Normal operation: less than 11mA 

@ 5 V, 12 MHz 

• 5-channel 8-bit A/D converter 

• 8-bit PWM output/timer 

V CC 

V SS 

RST 

RAM ADDR 

REGISTER 

B 

REGISTER 

TIMING 

AND 

CONTROL 

X1 

PD 

INSTRUCTION 

REGISTER 

OSCILLATOR 

X2 

P0.0–P0.4 

PORT 0 

DRIVERS 

I 2 C 

CONTROL 

PWM 

RAM 

PORT 0 

PORT 2 

ROM/ 

LATCH 

LATCH 

EPROM 

STACK 

ACC 

POINTER 

TMP2 

TMP1 

ALU 

PCON I2CFG I2STA TCON 

I2DAT I2CON IE 

TH0 TL0 

RTH RTL 

PSW 

INTERRUPT, SERIAL 

PORT AND TIMER BLOCKS 

PORT 1 

PORT 3 

LATCH 

LATCH 

ADC 

PORT 1 

PORT 3 

DRIVERS 

DRIVERS 

P1.0–P1.7 

P3.0–P3.7 

PROGRAM 

ADDRESS 

REGISTER 

BUFFER 

PC 

INCRE- 

MENTER 

PROGRAM 

COUNTER 

DPTR 

SU00319 

Part No. 

P87C752-1A28 

P87C752-4N28 

P87C752-4DB 

Package 

PLCC-28 

DIP-24 

SSOP-24 

5 

11 

4 1 26 

PLASTIC 

LEADED 

CHIP 

CARRIER 

12 18 

Pin Function 

Pin Function 

1 P3.4/A4 

15 P1.2/ADC2/D2 

2 P3.3/A3 

16 P1.3/ADC3/D3 

3 P3.2/A2/A10 17 P1.4/ADC4/D4 

4 P3.1/A1/A9 

18 AV SS 

5 P3.0/A0/A8 

19 AV CC 

6 P0.2/V PP 

20 P1.5/INT0/D5 

7 P0.1/SDA/OE-PGM 21 P1.6/INT1/D6 

8 P0.0/SCL/ASEL 22 P1.7/T0/D7 

9 RST 

23 P0.3 

10 X2 

24 P0.4/PWM OUT 

11 X1 

25 P3.7/A7 

12 V SS 

26 P3.6/A6 

13 P1.0/ADC0/D0 27 P3.5/A5 

14 P1.1/ADC1/D1 28 V CC 

25 

19 

P3.4/A4 1 

P3.3/A3 2 

P3.2/A2/A10 3 

P3.1/A1/A9 4 

P3.0/A0/A8 5 

P0.2/V PP 6 

P0.1/SDA/OE–PGM 7 

P0.0/SCL/ASEL 8 

RST 9 

X2 10 

X1 11 

V SS 12 

P1.0/ADC0/D0 13 

P1.1/ADC1/D1 14 

PLASTIC 

DUAL 

IN-LINE 

PACKAGE 

AND 

SHRINK 

SMALL 

OUTLINE 

PACKAGE 

28 

27 

26 

25 

24 

23 

22 

21 

20 

19 

18 

17 

16 

15 

V CC 

P3.5/A5 

P3.6/A6 

P3.7/A7 

P0.4/PWM OUT 

P0.3 

P1.7/T0/D7 

P1.6/INT1/D6 

P1.5/INT0/D5 

AV CC 

AV SS 

P1.4/ADC4/D4 

P1.3/ADC3/D3 

P1.2/ADC2/D2 

23 

Quarndon Electronics Ltd. | tel 01332 332651 | fax 01332 360922 

6

final i2c catalogue for pdf - E-LAB Computers

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?