PIC16F877A Flash 8kbyte 4MHz Microcontroller

• 40-pin Low Power Microcontroller
• Flash Program Memory: 8192 bytes
• EEPROM Data Memory: 256 bytes
• SRAM Data Memory: 368 bytes
• I/O Pins: 33
• Timers: Two 8-bit / One 16-bit
• A/D Converter: 10-bit Eight Channel
• PWM: Two 10-bit Modules
• SSP: SPI and I²C Support
• USART: Yes
• External Oscillator: up to 20MHz

​Features:

Special Microcontroller Features

• 100,000 erase/write cycle Enhanced Flash Program Memory Typical
• Self-reprogrammable under software control
• Single-supply 5V In-Circuit Serial Programming
• Watchdog Timer (WDT) with its own on-chip RC oscillator
• Programmable Code Protection
• Power-Saving Sleeping Mode

​Peripheral Features

• Two 8-bit (TMR0, TMR2)timer/counter with Prescalar
• One 16-bit timer/counter
• Brown-out detection circuitry
• Parallel Slave Port (PSP): 40/44 pin-device only

​High-Performance RISC CPU

•  Only 35 single-word instructions to learn
•  DC-20MHz clock input
•  Up to 8K x 14 words of Flash Program Memory
•  Pinout Compatible to other 28-pin or 40/44-pin

​Analog Features

• 10-bit, up to 8-channel Analog-to-Digital Converter (A/D)
• Brown-out Reset(BOR)
• Two Analog Comparators
• Programmable on-chip voltage reference (VREF) module

​ CMOS Technology

• Low-power, high-speed Flash/EEPROM technology
• Fully Static Design
• Wide Operating Voltage Range (2.0V to 5.5V)
• Low-power Consumption