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PIC16F877A-I/PT

MCHPPIC16F877A-I/PT

Microchip Technology
PIC PIC® 16F Microcontroller IC 8-Bit 20MHz 14KB (8K x 14) FLASH 44-TQFP (10x10)
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Overview

The PIC16F877A-I/PT is a versatile 8-bit microcontroller based on the RISC architecture, featuring 14KB of Flash memory and a 20MHz maximum clock speed. This 44-pin TQFP device includes an integrated 10-bit ADC, multiple timers, and dedicated communication peripherals such as I2C, SPI, and USART. It is widely recognized in the industry for its 5V tolerant I/O and straightforward Harvard architecture, making it a staple for general-purpose embedded control.

Why Choose This Part

The device offers robust electrical characteristics including a wide 2.5V to 5.5V supply range and high 25mA source/sink capability per I/O pin. Its self-programmable Flash and 256 bytes of EEPROM provide reliable non-volatile storage for calibration data and system parameters in demanding environments.

Applications

Industrial Control Systems
Utilizing its 33 I/O pins and 5V operation to interface with relays, solenoids, and industrial sensors.
Data Acquisition
Using the multi-channel ADC and SPI/I2C interfaces to collect and transmit sensor data to logging systems.
User Interface Modules
Driving alphanumeric LCDs and scanning keypads using the high pin-count 44-TQFP package.

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 Surface Mount
Number of I/O 33
Core Processor PIC
Package / Case 44-TQFP
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 44-TQFP (10x10)
Voltage - Supply (Vcc/Vdd) 4V ~ 5.5V

Getting Started

Development is typically performed using the Microchip MPLAB X IDE and the XC8 compiler. Hardware programming and debugging require an ICSP-compatible tool such as the MPLAB PICkit 4 or ICD 4, connected via the dedicated programming pins. For prototyping, the 44-pin TQFP footprint requires a breakout board or custom PCB, as it is not breadboard compatible.

Also Consider

ATmega328P-AU MCHPMicrochip Technology - An alternative 8-bit architecture with higher RAM density and extensive community library support.
PIC18F4520-I/PT MCHPMicrochip Technology - Offers an upgraded 16-bit instruction set and larger memory for more complex firmware requirements.