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PIC16F877A-I/P

MCHPPIC16F877A-I/P

Microchip Technology
PIC PIC® 16F Microcontroller IC 8-Bit 20MHz 14KB (8K x 14) FLASH 40-PDIP
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Overview

The PIC16F877A-I/P is a versatile 8-bit microcontroller based on the PIC16 architecture, featuring 14KB of Flash program memory and 368 bytes of RAM. This device is housed in a 40-pin PDIP package, making it highly suitable for prototyping and educational environments where breadboard compatibility is essential. It operates at speeds up to 20MHz and includes integrated EEPROM for non-volatile data storage.

Why Choose This Part

The primary advantage is its user-friendly 40-pin PDIP form factor, which eliminates the need for surface-mount soldering during development. It offers a robust feature set including 256 bytes of high-endurance EEPROM and self-reprogrammability under software control. The 5V operation and wide peripheral set (PWM, ADC, and multiple serial interfaces) provide high compatibility with a range of legacy and standard industrial components.

Applications

Industrial Control Systems
Utilizing the 33 I/O pins and integrated PWM modules for managing actuators and monitoring industrial sensors.
Legacy Embedded Systems
Serving as a reliable drop-in replacement or core processor for existing designs requiring 5V logic and DIP packaging.
Serial Communication Bridges
Implementing data translation between I2C, SPI, and USART protocols in multi-node communication setups.
Educational Development
Providing a straightforward architecture for teaching assembly and C programming on a physical through-hole platform.

Key Specifications

Speed 20MHz
RAM Size 368 x 8
Core Size 8-Bit
EEPROM Size 256 x 8
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Connectivity I2C, SPI, UART/USART
Mounting Type Through Hole
Number of I/O 33
Core Processor PIC
Package / Case 40-DIP (0.600", 15.24mm)
Data Converters A/D 8x10b
Oscillator Type External
Program Memory Size 14KB (8K x 14)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 40-PDIP
Voltage - Supply (Vcc/Vdd) 4V ~ 5.5V

Getting Started

To begin development, use the MPLAB X IDE and the XC8 compiler provided by Microchip. Hardware programming and debugging are typically performed using the PICkit 4 or MPLAB ICD 4 via the In-Circuit Serial Programming (ICSP) interface. Because it is a through-hole component, it can be immediately deployed on a standard breadboard with a 20MHz crystal and decoupling capacitors.

Also Consider

ATmega328P-PU MCHPMicrochip Technology - A popular 28-pin alternative with a larger ecosystem of libraries and similar through-hole prototyping capabilities.
PIC16F887-I/P MCHPMicrochip Technology - A modern successor that offers an internal oscillator and enhanced peripheral set in the same 40-pin DIP footprint.
PIC18F4550-I/P MCHPMicrochip Technology - Recommended for designs requiring integrated USB 2.0 connectivity and a more powerful 8-bit instruction set.
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