Microchip PIC16C57-RC/P 8-Bit OTP Microcontroller Overview

The Microchip PIC16C57-RC/P is a high-performance 8-bit microcontroller from Microchip Technology’s extensive PIC® (Programmable Intelligent Computer) family. Built on a robust RISC (Reduced Instruction Set Computer) architecture, this microcontroller is designed for cost-sensitive, yet performance-oriented embedded control applications. Its core operates with a two-stage instruction pipeline, enabling it to execute most of its 33 single-word instructions in a single cycle, achieving a throughput of up to 1 µs at a 4 MHz clock rate.

A defining characteristic of the PIC16C57-RC/P is its OTP (One-Time Programmable) program memory. This 2K x 12-word ROM provides a secure, non-volatile space for firmware, ideal for high-volume production runs where the code is fully validated and will not require future updates. For data storage and manipulation, the device includes 72 bytes of RAM, ensuring efficient handling of variables and system stack operations.

The device is packed with versatile I/O capabilities. It features 20 I/O pins, which are grouped into three ports (Port A, Port B, and Port C). These pins are individually configurable, providing the design engineer with maximum flexibility for interfacing with sensors, buttons, LEDs, and other peripherals. A key integrated peripheral is the 8-bit real-time clock/counter (TMR0) with an 8-bit programmable prescaler, which is essential for creating accurate timing loops, measuring intervals, or counting external events.

The PIC16C57-RC/P supports a wide operating voltage range (2.5V to 6.0V) and features power-saving Sleep mode, making it suitable for both line-powered and portable, battery-operated devices. Its high sink/source current per I/O pin (up to 25 mA) allows it to drive components like LEDs directly, reducing system component count and cost. Housed in the common plastic DIP (Dual In-line Package), the “-P” suffix denotes this through-hole package, which is perfect for prototyping and easy integration into various electronic systems.

ICGOODFIND: The PIC16C57-RC/P is a classic, reliable OTP microcontroller that offers a balanced mix of processing power, I/O flexibility, and cost-effectiveness, making it a solid choice for a wide array of embedded control applications in consumer, industrial, and automotive electronics.

Keywords: OTP Microcontroller, RISC Architecture, 8-Bit, PIC16C57, Embedded Control