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The PIC16F628A-I/P is a microcontroller manufactured by Microchip Technology. Below are its specifications, descriptions, and features:

Specifications:

• Manufacturer: Microchip
• Core: 8-bit PIC
• Architecture: Modified Harvard
• CPU Speed (MIPS): 5 MIPS at 20 MHz
• Program Memory (Flash): 3.5 KB
• RAM: 224 bytes
• EEPROM: 128 bytes
• I/O Pins: 16
• Timers: 2 x 8-bit, 1 x 16-bit
• PWM Channels: 1
• ADC Channels: None
• Comparators: 2
• Communication Interfaces: USART, SPI, I²C (via software)
• Oscillator Options: Up to 20 MHz (external), Internal 4 MHz with PLL
• Operating Voltage: 2.0V to 5.5V
• Operating Temperature: -40°C to +85°C
• Package: 18-Pin PDIP (Plastic Dual In-line Package)

Descriptions:

The PIC16F628A-I/P is a mid-range 8-bit microcontroller based on Microchip’s enhanced PIC architecture. It features a RISC CPU with 35 single-word instructions, making it efficient for embedded control applications. It includes Flash program memory, EEPROM for data storage, and a wide operating voltage range, making it suitable for battery-powered and low-power applications.

Features:

• Low Power Consumption:
• Standby Current: < 1 µA
• Operating Current: < 2 mA (at 5V, 4 MHz)
• Enhanced Core Features:
• 35 instructions, 14-bit wide
• 8-level deep hardware stack
• On-Chip Peripherals:
• Two analog comparators
• One Capture/Compare/PWM (CCP) module
• USART for serial communication
• In-Circuit Serial Programming (ICSP) support
• Flexible Clocking Options:
• Internal oscillator (4 MHz with software-selectable frequencies)
• External crystal/clock support (up to 20 MHz)
• Robust I/O Handling:
• Individually programmable pull-up resistors
• Interrupt-on-change for select pins
• Wide Operating Voltage (2.0V–5.5V):
• Suitable for battery-powered applications

This microcontroller is commonly used in applications such as:

• Home automation
• Industrial control systems
• Consumer electronics
• Sensor interfacing
• Small embedded control systems

The PIC16F628A-I/P is available in an 18-pin PDIP package, making it easy to prototype and integrate into various designs.