PIC16F877A 8K Byte 8-bit Microcontroller

The PIC16F877A CMOS FLASH-based 8-bit microcontroller is upward compatible with the PIC16F877A devices. It features 200 ns instruction execution, 256 bytes of EEPROM data memory, self programming, an ICD, 2 Comparators, 8 channels of 10-bit Analog-to-Digital (A/D) converter, 2 capture/compare/PWM functions, a synchronous serial port that can be configured as either 3-wire SPI or 2-wire I2C bus, a USART, and a Parallel Slave Port.

Features:

• High-Performance RISC CPU
• Lead-free; RoHS-compliant
• Operating speed: 20 MHz, 200 ns instruction cycle
• Operating voltage: 4.0-5.5V
• Industrial temperature range (-40° to +85°C)
• 15 Interrupt Sources
• 35 single-word instructions
• All single-cycle instructions except for program branches (two-cycle)

Special Features:

• Flash Memory: 14.3 Kbytes (8192 words)
• Data SRAM: 368 bytes
• Data EEPROM: 256 bytes
• Self-reprogrammable under software control
• In-Circuit Serial Programming via two pins (5V)
• Watchdog Timer with on-chip RC oscillator
• Programmable code protection
• Power-saving Sleep mode
• Selectable oscillator options
• In-Circuit Debug via two pins

Peripheral Features:

• 33 I/O pins; 5 I/O ports
• 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
• 16-bit Capture input; max resolution 12.5 ns
• 16-bit Compare; max resolution 200 ns
• 10-bit PWM
• Synchronous Serial Port with two modes:
• SPI Master
• I2C Master and Slave
• USART/SCI with 9-bit address detection
• Parallel Slave Port (PSP)
• 8 bits wide with external RD, WR and CS controls
• Brown-out detection circuitry for Brown-Out Reset

Analog Features:

• 10-bit, 8-channel A/D Converter
• Brown-Out Reset
• Analog Comparator module
• 2 analog comparators
• Programmable on-chip voltage reference module
• Programmable input multiplexing from device inputs and internal VREF
• Comparator outputs are externally accessible