PIC16F876AT-I/SO
PIC16 系列 368 B RAM 14 kB 闪存 8 位 CMOS 微控制器 - SOIC-28
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
