Microchip PIC16C55-XT/P 8-Bit OTP Microcontroller Overview

The Microchip PIC16C55-XT/P is an 8-bit microcontroller from Microchip Technology’s extensive PIC® (Peripheral Interface Controller) family. It is built using high-performance RISC architecture and is based on an OTP (One-Time Programmable) program memory technology, making it a cost-effective and reliable solution for embedded control applications requiring medium complexity and deterministic operation.

A key characteristic of the PIC16C55 is its fully static CMOS design, which allows the device to operate over a wide voltage range (typically 3.0V to 6.0V) and at very low power consumption. This feature is critical for battery-powered or energy-sensitive applications. The "XT" in its designation signifies its optimized support for crystal oscillator configurations, including standard crystals and ceramic resonators, providing a stable clock source for precise timing operations.

The core integrates a wealth of features within a compact package. It offers 512 x 12 words of OTP program memory and 25 bytes of RAM for data storage. While its memory size is considered modest by today's standards, it is perfectly suited for a vast array of dedicated control tasks, such as industrial controls, sensors, automotive subsystems, and consumer electronics.

Its peripheral set, though streamlined, is highly effective. It includes a real-time clock/counter (TMR0) with an 8-bit prescaler for timing and event counting functions. The device provides 20 I/O pins, which are organized into multiple ports. These pins are highly flexible, offering individual direction control and the ability to source or sink sufficient current to drive LEDs or other peripherals directly, minimizing external components.

A significant advantage of the OTP memory technology is its resistance to tampering and high robustness in challenging electrical noise environments. This makes the PIC16C55-XT/P a dependable choice for applications where data integrity is paramount and where the firmware is finalized and will not require future updates in the field.

In summary, the PIC16C55-XT/P represents a classic, no-frills microcontroller solution. It delivers a proven blend of performance, low power, and integration for cost-optimized, high-volume embedded systems that require a one-time programmable secure solution.

ICGOODFIND: The PIC16C55-XT/P is a robust, OTP-based 8-bit MCU ideal for fixed-function, cost-sensitive designs requiring low power and high noise immunity.

Keywords: OTP Memory, Low Power, RISC Architecture, 8-Bit Microcontroller, CMOS Technology.