PIC16F877A Datasheet PDF - Microchip

DEVICE OVERVIEW

●This document contains device specific information about the following devices:

●• PIC16F873A

●• PIC16F874A

●• PIC16F876A

●• PIC16F877A

●PIC16F873A/876A devices are available only in 28-pin packages, while PIC16F874A/877A devices are available in 40-pin and 44-pin packages. All devices in the PIC16F87XA family share common architecture with the following differences:

●• The PIC16F873A and PIC16F874A have one-half of the total on-chip memory of the PIC16F876A and PIC16F877A

●• The 28-pin devices have three I/O ports, while the 40/44-pin devices have five

●• The 28-pin devices have fourteen interrupts, while the 40/44-pin devices have fifteen

●• The 28-pin devices have five A/D input channels, while the 40/44-pin devices have eight

●• The Parallel Slave Port is implemented only on the 40/44-pin devices

●Devices Included in this Data Sheet:

●• PIC16F873A • PIC16F874A

●• PIC16F876A • PIC16F877A

●High-Performance RISC CPU:

●• Only 35 single-word instructions to learn

●• All single-cycle instructions except for program branches, which are two-cycle

●• Operating speed: DC – 20 MHz clock input DC – 200 ns instruction cycle

●• Up to 8K x 14 words of Flash Program Memory,

●  Up to 368 x 8 bytes of Data Memory (RAM),

●  Up to 256 x 8 bytes of EEPROM Data Memory

●• Pinout compatible to other 28-pin or 40/44-pin PIC16CXXX and PIC16FXXX microcontrollers

●Peripheral Features:

●• Timer0: 8-bit timer/counter with 8-bit prescaler

●• Timer1: 16-bit timer/counter with prescaler, can be incremented during Sleep via external crystal/clock

●• Timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler

●• Two Capture, Compare, PWM modules

●   - Capture is 16-bit, max. resolution is 12.5 ns

●   - Compare is 16-bit, max. resolution is 200 ns

●   - PWM max. resolution is 10-bit

●• Synchronous Serial Port (SSP) with SPI™ (Master mode) and I2C™ (Master/Slave)

●• Universal Synchronous Asynchronous Receiver Transmitter (USART/SCI) with 9-bit address detection

●• Parallel Slave Port (PSP) – 8 bits wide with external RD, WR and CS controls (40/44-pin only)

●• Brown-out detection circuitry for Brown-out Reset (BOR)

●Analog Features:

●• 10-bit, up to 8-channel Analog-to-Digital Converter (A/D)

●• Brown-out Reset (BOR)

●• Analog Comparator module with:

●   - Two analog comparators

●   - Programmable on-chip voltage reference (VREF) module

●   - Programmable input multiplexing from device inputs and internal voltage reference

●   - Comparator outputs are externally accessible

●Special Microcontroller Features:

●• 100,000 erase/write cycle Enhanced Flash program memory typical

●• 1,000,000 erase/write cycle Data EEPROM memory typical

●• Data EEPROM Retention > 40 years

●• Self-reprogrammable under software control

●• In-Circuit Serial Programming™ (ICSP™) via two pins

●• Single-supply 5V In-Circuit Serial Programming

●• Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation

●• Programmable code protection

●• Power saving Sleep mode

●• Selectable oscillator options

●• In-Circuit Debug (ICD) via two pins

●CMOS Technology:

●• Low-power, high-speed Flash/EEPROM technology

●• Fully static design

●• Wide operating voltage range (2.0V to 5.5V)

●• Commercial and Industrial temperature ranges

●• Low-power consumption