Microchip PIC16F627-04/P 8-Bit Microcontroller Datasheet and Application Overview

The PIC16F627-04/P from Microchip Technology represents a versatile and cost-effective solution in the world of 8-bit microcontrollers. Housed in a robust 18-pin PDIP package, this device is engineered for a broad spectrum of embedded control applications, from consumer electronics to automotive and industrial systems. Its core is a high-performance RISC CPU featuring an optimized instruction set for efficient operation, achieving a maximum clock speed of 4 MHz (indicated by the -04 speed grade).

A key strength of the PIC16F627-04/P lies in its rich set of integrated peripherals. It is equipped with 1.75 KB of Flash program memory and 64 bytes of RAM, providing ample space for complex firmware. A standout feature is its 256 bytes of EEPROM data memory, which allows for the non-volatile storage of critical data such as calibration constants or user settings without the need for an external chip. The device includes two versatile timers (Timer0 and Timer1), a Watchdog Timer for enhanced reliability, and a comparator module that can be configured for analog signal comparisons, reducing external component count.

For developer interaction and system control, the microcontroller offers a USART (Universal Synchronous Asynchronous Receiver Transmitter) module, enabling seamless serial communication (like RS-232) with PCs or other peripherals. Furthermore, it supports an In-Circuit Serial Programming (ICSP)™ interface, which drastically simplifies the process of firmware updates and debugging without removing the chip from the circuit board.

In practical applications, the PIC16F627-04/P excels. Its combination of analog and digital capabilities makes it ideal for system management functions such as sensor interfacing, motor control, and power supply monitoring. Its low power consumption and robust I/O control also make it a perfect candidate for appliance control in products like washing machines, coffee makers, and remote controls. The integrated comparator is particularly useful in battery monitoring and charger circuits, where precise voltage thresholds are critical.

ICGOODFIND: The PIC16F627-04/P is a highly integrated and reliable 8-bit microcontroller that balances performance, power, and cost. Its built-in EEPROM, analog comparator, and serial communication capabilities make it an exceptionally flexible choice for designers looking to minimize system complexity and component count while building robust embedded systems.

Keywords: 8-Bit Microcontroller, EEPROM Memory, In-Circuit Serial Programming (ICSP), Analog Comparator, USART Communication.