Microchip PIC16F628A 8-Bit Flash Microcontroller SOIC-18

Microchip PIC16F628A 8-Bit Flash Microcontroller is an 8-bit flash-based CMOS microcontroller in a SOIC-18 package, built with nanoWatt technology for low power consumption and suited to embedded control applications.

Overview

The device uses a Harvard RISC architecture with separate instruction and data buses. Its enhanced core includes an eight-level deep hardware stack and support for multiple internal and external interrupt sources. A two-stage instruction pipeline allows most instructions to complete in a single cycle, and the device provides a total of 35 instructions and a large register set for flexible programming.

Key Features

• 4MHz internal oscillator
• 128-byte EEPROM for data storage
• Programmable Brown-Out Reset (BOR)
• Watchdog timer with its own independent oscillator
• Low-voltage programming support
• Programmable voltage reference (VREF)
• Power-saving sleep mode
• High current sink/source capability for direct LED drive

Specifications

• Maximum operating frequency: 20MHz
• Program memory: 3.5KB
• RAM: 224 bytes
• I/O pins: 16
• Interface: USART
• Supply voltage: 3V to 5.5V
• Operating temperature: -40°C to 85°C
• Weight: 0.001 g
• Dimensions: 3.3 (width) x 1.5 (depth) x 4.3 (height)

Applications

Integrated features such as the internal oscillator, EEPROM, and programmable Brown-Out Reset are intended to minimise the number of external components required, which can help enhance overall system reliability and reduce power draw. The device is suited to embedded control applications, low-power designs, and systems that require direct LED drive.

Select this microcontroller for embedded control designs that need low power consumption, on-chip memory, and a compact SOIC-18 package.