PIC16F877AT-I/PT

PIC16 系列 368 B RAM 14 kB 闪存 8 位 CMOS 微控制器 - TQFP-44

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