Renesas MCU M16C Family (R32C/M32C/M16C/R8C) - Glyn

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R8C/18-1B Group Features
High-precision, on-chip oscillator (8MHz)
• On-chip multimaster I2C-bus On-chip clock-synchronous serial I/O (SSU) with chip select
• Data flash area can be used in place of external E2PROM. R8C/19 Group, R8C/1B Group
• On-chip switchable sink or source-type large-current drive ports.
• On-chip power-on reset function and voltage detection function
eliminate need for separate reset IC.
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R8C/20-23 Group Features
R8C/Tiny Series for automotive applications
CAN 2.0B added. Upward compatible with R8C/22 Group,
R8C/23 Group, R8C/20 Group, and R8C/21 Group.
Support for high-temperature operation
J version: -40 to 85°C
K version: -40 to 125°C
• Support for high-speed operation
J version: VCC = 2.7 to 3.0V (f(XIN) =10MHz)
J version: VCC = 3.0 to 5.5V (f(XIN) = 20MHz)
K version: VCC = 2.7 to 3.0V (f(XIN) = 10MHz)
K version: VCC = 3.0 to 5.5V (f(XIN) = 16MHz)
• High-precision, high-speed on-chip oscillator (40MHz)
• Data flash area can be used in place of external E2PROM. (R8C/21 Group, R8C/23 Group)
• On-chip power-on reset function and voltage detection function
eliminate need for separate reset IC.
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R8C/24-25 Group Features
Support for low-voltage operation
VCC = 2.2 to 2.7V (f(XIN) = 5MHz)
VCC = 2.7 to 5.5V (f(XIN) = 10MHz)
VCC = 3.0 to 5.5V (f(XIN) = 20MHz)
• High-precision, high-speed on-chip oscillator (40MHz)
• On-chip subclock oscillator circuit (32.768kHz)
• On-chip timer RD for motor control
• On-chip multimaster I2C-bus • On-chip clock-synchronous serial I/O (SSU) with chip select
• Data flash area can be used in place of external E2PROM. (R8C/25 Group)
• On-chip power-on reset function and voltage detection function
eliminate need for separate reset IC.
• On-chip switchable sink- or source-type
large-current drive ports.
R8C/18-1B Block Diagram
R8C/Tiny
CPU Core
Max. 20MHz
Multiplier
Interrupt
Flash
Data Flash 2KB
RAM
POR/LVD
LED Drive Port
R8C/20-23 Block Diagram
R8C/Tiny
CPU Core
Max. 20MHz
Multiplier
Interrupt
Flash
Data Flash 2KB
RAM
POR/LVD
Low-Speed
On-Chip Osc
High-Speed
On-Chip Osc
Main-Clock
Max. 20MHz
Oscillation Stop
Detection
WDT
A/D Converter
Low-Speed
On-Chip Osc
High-Speed
On-Chip Osc
Main-Clock
Max. 20MHz
Oscillation Stop
Detection
WDT
A/D Converter
CAN
(R8C/22 and R8C/23 Only)
R8C/24-25 Block Diagram
R8C/Tiny
CPU Core
Max. 20MHz
Multiplier
Interrupt
Flash
Data Flash 2KB
RAM
POR/LVD
LED Drive Port
Low-Speed
On-Chip Osc
High-Speed
On-Chip Osc
Main-Clock
Max. 20MHz
Sub-Clock
32kHz
Oscillation Stop
Detection
WDT
A/D Converter
Timer X
Timer Y
Timer C
SIO/UART 2ch
SSU
/Multi-master I 2 C
Hardware LIN
Timer RA
Timer RB
Timer RD
Timer RE
SIO/UART 2ch
SSU
/Multi-master I 2 C
Hardware LIN
Timer RA
Timer RB
Timer RD
Timer RE
(RTC)
SIO/UART 2ch
SSU
/Multi-master I 2 C
Hardware LIN
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