Microchip PIC16F819-I/SO 8-bit PIC Microcontroller 20 MHz 3.584 kB Flash 256 B RAM 18-Pin SOIC

Microchip PIC16F819-I/SO is an 8-bit PIC microcontroller featuring a Mid-Range PIC architecture designed for versatile embedded applications. This MCU operates at up to 20 MHz clock speed, providing sufficient processing power for control and automation tasks.

It includes 3.584 kB of flash program memory for firmware storage and 256 bits of RAM for data handling. The device supports SPI serial interface to enable communication with other peripherals and external devices.

Equipped with 23 programmable I/O pins, it offers extensive connectivity options for sensors, actuators, and other digital inputs and outputs. The microcontroller is packaged in an 18-pin SOIC form factor, facilitating surface mount PCB assembly in compact designs.

Peripheral features comprise five 10-bit ADCs for analog signal conversion, CCP module for capture, compare and PWM functionality, and three timers (two 8-bit and one 16-bit) for timing control. It includes integrated features like Power-On Reset, Brown-Out Reset, Power-Up Timer, Oscillator Start-Up Timer, Watchdog Timer, In-Circuit Serial Programming, and In-Circuit Debug capabilities to enhance reliability and ease of development.

The operating supply voltage ranges from 2 V up to 5.5 V with a maximum power dissipation of 1 watt, suitable for low-power embedded systems. The microcontroller is rated for industrial temperature range (-40°C to 85°C), making it appropriate for rugged environments in industrial, automation, and consumer electronics applications.

Features a Mid-Range PIC core architecture with 35 instructions. Operates at a maximum clock frequency of 20 MHz. Includes 3.584 kB flash program memory and 256 bits of RAM. Has 23 programmable input/output pins for flexible interfacing.

Supports SPI interface for serial communication. Equipped with five 10-bit analog-to-digital converters (ADCs). Built-in peripherals include Capture, Compare, PWM module, and three timers. Operates within a voltage range from 2 V to 5.5 V with a maximum power dissipation of 1 W.

Designed for industrial temperature range from -40°C to 85°C. Compact dimensions: 11.73 mm length, 7.59 mm width, 2.39 mm height.

This microcontroller is widely applicable in embedded systems design, industrial control, instrumentation, automation applications, and smaller-scale communication modules. The combination of on-chip peripherals, moderate memory, and affordable packaging makes it ideal for low to medium complexity embedded designs.

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