PIC16F84A 18-pin Enhanced Flash/EEPROM 8-Bit MCU Data Sheet

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PIC16F84A8.6 SIMICE Entry-Level HardwareSimulatorSIMICE is an entry-level hardware development systemdesigned to operate in a PC-based environmentwith Microchip’s simulator MPLAB-SIM. Both SIM-ICE and MPLAB-SIM run under Microchip Technology’sMPLAB Integrated Development Environment(IDE) software. Specifically, SIMICE provides hardwaresimulation for Microchip’s PIC12C5XX, PIC12CE5XX,and PIC16C5X families of PICmicro 8-bit microcontrollers.SIMICE works in conjunction with MPLAB-SIMto provide non-real-time I/O port emulation. SIMICEenables a developer to run simulator code for drivingthe target system. In addition, the target system canprovide input to the simulator code. This capabilityallows for simple and interactive debugging withouthaving to manually generate MPLAB-SIM stimulusfiles. SIMICE is a valuable debugging tool for entrylevelsystem development.8.7 PICDEM-1 Low-Cost PICmicroDemonstration BoardThe PICDEM-1 is a simple board which demonstratesthe capabilities of several of Microchip’s microcontrollers.The microcontrollers supported are: PIC16C5X(PIC16C54 to PIC16C58A), PIC16C61, PIC16C62X,PIC16C71, PIC16C8X, PIC17C42, PIC17C43 andPIC17C44. All necessary hardware and software isincluded to run basic demo programs. The users canprogram the sample microcontrollers provided withthe PICDEM-1 board, on a PRO MATE II orPICSTART-Plus programmer, and easily test firmware.The user can also connect the PICDEM-1board to the MPLAB-ICE emulator and download thefirmware to the emulator for testing. Additional prototypearea is available for the user to build some additionalhardware and connect it to the microcontrollersocket(s). Some of the features include an RS-232interface, a potentiometer for simulated analog input,push-button switches and eight LEDs connected toPORTB.8.8 PICDEM-2 Low-Cost PIC16CXXDemonstration BoardThe PICDEM-2 is a simple demonstration board thatsupports the PIC16C62, PIC16C64, PIC16C65,PIC16C73 and PIC16C74 microcontrollers. All thenecessary hardware and software is included torun the basic demonstration programs. The usercan program the sample microcontrollers providedwith the PICDEM-2 board, on a PRO MATE II programmeror PICSTART-Plus, and easily test firmware.The MPLAB-ICE emulator may also be used with thePICDEM-2 board to test firmware. Additional prototypearea has been provided to the user for adding additionalhardware and connecting it to the microcontrollersocket(s). Some of the features include a RS-232 interface,push-button switches, a potentiometer for simulatedanalog input, a Serial EEPROM to demonstrateusage of the I 2 C bus and separate headers for connectionto an LCD module and a keypad.8.9 PICDEM-3 Low-Cost PIC16CXXXDemonstration BoardThe PICDEM-3 is a simple demonstration board thatsupports the PIC16C923 and PIC16C924 in the PLCCpackage. It will also support future 44-pin PLCCmicrocontrollers with a LCD Module. All the necessaryhardware and software is included to run thebasic demonstration programs. The user can programthe sample microcontrollers provided withthe PICDEM-3 board, on a PRO MATE II programmeror PICSTART Plus with an adapter socket, andeasily test firmware. The MPLAB-ICE emulator mayalso be used with the PICDEM-3 board to test firmware.Additional prototype area has been provided tothe user for adding hardware and connecting it to themicrocontroller socket(s). Some of the features includean RS-232 interface, push-button switches, a potentiometerfor simulated analog input, a thermistor andseparate headers for connection to an external LCDmodule and a keypad. Also provided on the PICDEM-3board is an LCD panel, with 4 commons and 12 segments,that is capable of displaying time, temperatureand day of the week. The PICDEM-3 provides an additionalRS-232 interface and Windows 3.1 software forshowing the demultiplexed LCD signals on a PC. A simpleserial interface allows the user to construct a hardwaredemultiplexer for the LCD signals.DS35007A-page 36 Preliminary © 1998 Microchip Technology Inc.
PIC16F84A8.10 MPLAB Integrated DevelopmentEnvironment SoftwareThe MPLAB IDE Software brings an ease of softwaredevelopment previously unseen in the 8-bit microcontrollermarket. MPLAB is a windows based applicationwhich contains:• A full featured editor• Three operating modes- editor- emulator- simulator• A project manager• Customizable tool bar and key mapping• A status bar with project information• Extensive on-line helpMPLAB allows you to:• Edit your source files (either assembly or ‘C’)• One touch assemble (or compile) and downloadto PICmicro tools (automatically updates allproject information)• Debug using:- source files- absolute listing fileThe ability to use MPLAB with Microchip’s simulatorallows a consistent platform and the ability to easilyswitch from the low cost simulator to the full featuredemulator with minimal retraining due to developmenttools.8.11 Assembler (MPASM)The MPASM Universal Macro Assembler is a PChostedsymbolic assembler. It supports all microcontrollerseries including the PIC12C5XX, PIC14000,PIC16C5X, PIC16CXXX, and PIC17CXX families.MPASM offers full featured Macro capabilities, conditionalassembly, and several source and listing formats.It generates various object code formats to supportMicrochip's development tools as well as third partyprogrammers.MPASM allows full symbolic debugging from MPLAB-ICE, Microchip’s Universal Emulator System.MPASM has the following features to assist in developingsoftware for specific use applications.• Provides translation of Assembler source code toobject code for all Microchip microcontrollers.• Macro assembly capability.• Produces all the files (Object, Listing, Symbol, andspecial) required for symbolic debug withMicrochip’s emulator systems.• Supports Hex (default), Decimal and Octal sourceand listing formats.MPASM provides a rich directive language to supportprogramming of the PICmicro. Directives are helpful inmaking the development of your assemble source codeshorter and more maintainable.8.12 Software Simulator (MPLAB-SIM)The MPLAB-SIM Software Simulator allows codedevelopment in a PC host environment. It allows theuser to simulate the PICmicro series microcontrollerson an instruction level. On any given instruction, theuser may examine or modify any of the data areas orprovide external stimulus to any of the pins. The input/output radix can be set by the user and the executioncan be performed in; single step, execute until break, orin a trace mode.MPLAB-SIM fully supports symbolic debugging usingMPLAB-C17 and MPASM. The Software Simulatoroffers the low cost flexibility to develop and debug codeoutside of the laboratory environment making it anexcellent multi-project software development tool.8.13 MPLAB-C17 CompilerThe MPLAB-C17 Code Development System is acomplete ANSI ‘C’ compiler and integrated developmentenvironment for Microchip’s PIC17CXXX family ofmicrocontrollers. The compiler provides powerful integrationcapabilities and ease of use not found withother compilers.For easier source level debugging, the compiler providessymbol information that is compatible with theMPLAB IDE memory display.8.14 Fuzzy Logic Development System(fuzzyTECH-MP)fuzzyTECH-MP fuzzy logic development tool is availablein two versions - a low cost introductory version,MP Explorer, for designers to gain a comprehensiveworking knowledge of fuzzy logic system design; and afull-featured version, fuzzyTECH-MP, Edition for implementingmore complex systems.Both versions include Microchip’s fuzzyLAB demonstrationboard for hands-on experience with fuzzy logicsystems implementation.8.15 SEEVAL ® Evaluation andProgramming SystemThe SEEVAL SEEPROM Designer’s Kit supports allMicrochip 2-wire and 3-wire Serial EEPROMs. The kitincludes everything necessary to read, write, erase orprogram special features of any Microchip SEEPROMproduct including Smart Serials and secure serials.The Total Endurance Disk is included to aid in tradeoffanalysis and reliability calculations. The total kit cansignificantly reduce time-to-market and result in anoptimized system.© 1998 Microchip Technology Inc. Preliminary DS35007A-page 37
Page 1 and 2: MPIC16F84A18-pin Enhanced Flash/EEP
Page 3 and 4: PIC16F84A1.0 DEVICE OVERVIEWThis do
Page 5 and 6: PIC16F84A2.0 MEMORY ORGANIZATIONThe
Page 7 and 8: PIC16F84A2.2.2 SPECIAL FUNCTION REG
Page 9 and 10: PIC16F84A2.2.2.2 OPTION_REG REGISTE
Page 11 and 12: PIC16F84A2.3 PCL and PCLATHThe prog
Page 13 and 14: PIC16F84A3.0 I/O PORTSSome pins for
Page 15 and 16: PIC16F84A3.2 PORTB and TRISB Regist
Page 17 and 18: PIC16F84A4.0 TIMER0 MODULEThe Timer
Page 19 and 20: PIC16F84A5.0 DATA EEPROM MEMORYThe
Page 21 and 22: PIC16F84A6.0 SPECIAL FEATURES OF TH
Page 23 and 24: PIC16F84A6.2.3 RC OSCILLATORFor tim
Page 25 and 26: PIC16F84A6.4 Power-on Reset (POR)A
Page 27 and 28: PIC16F84AFIGURE 6-9:TIME-OUT SEQUEN
Page 29 and 30: PIC16F84A6.8.1 INT INTERRUPTExterna
Page 31 and 32: PIC16F84A6.11 Power-down Mode (SLEE
Page 33 and 34: PIC16F84A7.0 INSTRUCTION SET SUMMAR
Page 35: PIC16F84A8.0 DEVELOPMENT SUPPORT8.1
Page 39 and 40: © 1998 Microchip Technology Inc. P
Page 41 and 42: PIC16F84A9.0 ELECTRICAL CHARACTERIS
Page 43 and 44: PIC16F84A9.1 DC CHARACTERISTICS: PI
Page 45 and 46: PIC16F84A9.3 DC CHARACTERISTICS: PI
Page 47 and 48: PIC16F84A9.5 AC (Timing) Characteri
Page 49 and 50: PIC16F84A9.5.3 TIMING DIAGRAMS AND
Page 51 and 52: PIC16F84AFIGURE 9-5:RESET, WATCHDOG
Page 53 and 54: PIC16F84A10.0 DC & AC CHARACTERISTI
Page 55 and 56: PIC16F84A11.0 PACKAGING INFORMATION
Page 57 and 58: PIC16F84A11.3 K04-051 18-Lead Plast
Page 59 and 60: PIC16F84AAPPENDIX A: REVISION HISTO
Page 61 and 62: PIC16F84ANOTES:© 1998 Microchip Te
Page 63 and 64: PIC16F84AINDEXAAbsolute Maximum Rat
Page 65 and 66: PIC16F84AON-LINE SUPPORTMicrochip p
Page 67 and 68: PIC16F84APIC16F84A PRODUCT IDENTIFI

PIC16F84A 18-pin Enhanced Flash/EEPROM 8-Bit MCU Data Sheet

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