Online Reservation System

Topics: Processor register, Central processing unit, Bit Pages: 104 (39927 words) Published: January 29, 2013
PIC16F87X Data Sheet 28/40-Pin 8-Bit CMOS FLASH Microcontrollers 2001 Microchip Technology Inc. DS30292C

“All rights reserved. Copyright © 2001, Microchip Technology Trademarks Incorporated, USA. Information contained in this publication regarding device applications and the like is intended through The Microchip name, logo, PIC, PICmicro, PICMASTER, PICsuggestion only and may be superseded by updates. No repSTART, PRO MATE, KEELOQ, SEEVAL, MPLAB and The resentation or warranty is given and no liability is assumed by Embedded Control Solutions Company are registered tradeMicrochip Technology Incorporated with respect to the accumarks of Microchip Technology Incorporated in the U.S.A. and racy or use of such information, or infringement of patents or other countries. other intellectual property rights arising from such use or oth-

Total Endurance, ICSP, In-Circuit Serial Programming, Filtererwise. Use of Microchip’s products as critical components in Lab, MXDEV, microID, Flex ROM, fuzzy LAB, MPASM, life support systems is not authorized except with express MPLINK, MPLIB, PICDEM, ICEPIC, Migratable Memory, written approval by Microchip. No licenses are conveyed, FanSense, ECONOMONITOR and SelectMode are tradeimplicitly or otherwise, under any intellectual property rights. marks of Microchip Technology Incorporated in the U.S.A. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. Serialized Quick Term Programming (SQTP) is a service mark All rights reserved. All other trademarks mentioned herein are of Microchip Technology Incorporated in the U.S.A. the property of their respective companies. No licenses are conveyed, implicitly or otherwise, under any intellectual propAll other trademarks mentioned herein are property of their erty rights.” respective companies. © 2001, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Microchip received QS-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona in July 1999. The

Company’s quality system processes and procedures are QS-9000 compliant for its PICmicro® 8-bit MCUs, KEELOQ® code hopping devices, Serial EEPROMs and microperipheral products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001 certified. DS30292C - page ii 2001 Microchip Technology Inc. PIC16F87X 28/40-Pin 8-Bit CMOS FLASH Microcontrollers Devices Included in this Data Sheet: Pin Diagram • PIC16F873 • PIC16F876 PDIP • PIC16F874 • PIC16F877 MCLR/VPP 1 40 RB7/PGD RA0/AN0 2 39

RB6/PGC Microcontroller Core Features: RA1/AN1 3 38 RB5 RA2/AN2/VREF4 37 RB4 • High performance RISC CPU RA3/AN3/VREF+ 5 36 RB3/PGM • Only 35 single word instructions to learn RA4/T0CKI 6 35 RB2 RA5/AN4/SS 7 34 RB1 • All single cycle instructions except for program

RE0/RD/AN5 8 33 RB0/INT branches which are two cycle RE1/WR/AN6 9 /874 32 VDD • Operating speed: DC - 20 MHz clock input RE2/CS/AN7 10 31 VSS 877 DC - 200 ns instruction cycle VDD 11 30 RD7/PSP7 F VSS 12 29

RD6/PSP6 • Up to 8K x 14 words of FLASH Program Memory, OSC1/CLKIN 13 28 RD5/PSP5 Up to 368 x 8 bytes of Data Memory (RAM) OSC2/CLKOUT 14 IC16 27 RD4/PSP4 P Up to 256 x 8 bytes of EEPROM Data Memory RC0/T1OSO/T1CKI 15 26 RC7/RX/DT RC1/T1OSI/CCP2 16 25 RC6/TX/CK • Pinout compatible to the PIC16C73B/74B/76/77 RC2/CCP1 17

24 RC5/SDO • Interrupt capability (up to 14 sources) RC3/SCK/SCL 18 23 RC4/SDI/SDA RD0/PSP0 19 22 RD3/PSP3 • Eight level deep hardware stack RD1/PSP1 20 21 RD2/PSP2 • Direct, indirect and relative addressing modes • Power-on Reset (POR) • Power-up Timer (PWRT) and Oscillator Start-up Timer (OST) Peripheral Features: • Watchdog Timer (WDT) with its own on-chip RC • Timer0: 8-bit timer/counter with 8-bit prescaler oscillator for reliable operation • Timer1: 16-bit timer/counter with prescaler,

• Programmable...
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