Microchip PIC16F627T-04I/SO 8-Bit Microcontroller: Data Sheet and Application Overview
The Microchip PIC16F627T-04I/SO is a powerful and versatile 8-bit microcontroller from Microchip Technology's extensive PIC® (Peripheral Interface Controller) family. Housed in a compact 18-pin SOIC (Small Outline Integrated Circuit) package, this device is designed for a wide array of embedded control applications, balancing performance, power efficiency, and cost-effectiveness.
Core Architecture and Key Features
At the heart of the PIC16F627T-04I/SO lies a high-performance RISC CPU. All instructions are single-cycle (200 ns) except for program branches, which are two-cycle, enabling efficient and deterministic execution of code. Operating at a maximum frequency of 4 MHz (as denoted by the -04 speed grade), it features 1.75 KB of Flash program memory, 224 bytes of RAM, and 128 bytes of EEPROM data memory, providing ample space for both program instructions and non-volatile data storage.
A standout feature of this microcontroller is its robust set of integrated peripherals. These include:
Analog Comparator Module: Two analog comparators with programmable on-chip voltage reference, simplifying sensor interface design without external components.
Timer Modules: Multiple timers (Timer0, Timer1, Timer2) provide the foundation for event timing, waveform generation, and capture/compare operations.
USART (Universal Synchronous Asynchronous Receiver Transmitter): This peripheral enables full-duplex serial communication (RS-232, RS-485, etc.), making it ideal for connecting to PCs, peripherals, or other microcontrollers.
In-Circuit Serial Programming™ (ICSP™): This capability allows for flexible and cost-effective firmware updates even after the device is soldered onto a printed circuit board.
Application Overview
The combination of its integrated features and small form factor makes the PIC16F627T-04I/SO exceptionally suited for a diverse range of applications. Its low power consumption in conjunction with a wide operating voltage range (2.0V to 5.5V) is perfect for battery-operated devices. Common application areas include:
Automotive Electronics: Sensor interfaces, control modules for interior lighting, and small motor controls.
Industrial Control: Programmable logic controllers, power supplies, and fan speed controllers.
Consumer Electronics: Appliance control (e.g., coffee makers, blenders), remote controls, and advanced toys.
Smart Sensors: Devices that require signal conditioning, data logging to EEPROM, and serial communication.
Design and Development Support
Designing with this microcontroller is supported by Microchip's mature and comprehensive ecosystem. The MPLAB® X Integrated Development Environment (IDE) offers a complete suite of free software tools for code development, debugging, and simulation. Furthermore, a vast selection of hardware tools, from low-cost programmers to full-featured debuggers, accelerates the prototyping and production process.
The Microchip PIC16F627T-04I/SO stands as a testament to the enduring value of well-supported 8-bit architecture. It delivers a potent mix of essential peripherals like analog comparators and serial communication, non-volatile EEPROM memory, and a compact footprint. This combination makes it an enduringly popular and highly reliable choice for engineers designing cost-sensitive, power-efficient, and space-constrained embedded systems across automotive, industrial, and consumer markets.
Keywords:
1. 8-Bit Microcontroller
2. Integrated Peripherals
3. Low Power Consumption
4. Serial Communication (USART)
5. Embedded Control
