Microchip PIC16C505-04I/SL 8-Bit OTP Microcontroller Overview

The Microchip PIC16C505-04I/SL is an 8-bit microcontroller belonging to Microchip’s PIC® family, designed for cost-sensitive, high-volume, and embedded control applications. It is built around a compact and efficient RISC architecture, offering a balance of performance, power efficiency, and integration in a small footprint.

This microcontroller is based on One-Time Programmable (OTP) memory technology. This makes it an ideal solution for applications where firmware is thoroughly debugged and finalized for mass production, eliminating the cost overhead of UV-erasable or flash-based memory options. The device operates at a clock frequency of up to 4 MHz, providing a sufficient instruction throughput for a wide range of basic control tasks.

A key feature of the PIC16C505 is its highly integrated design. It includes 1 KB of OTP program memory and 41 bytes of RAM for data handling. Despite its simplicity, it incorporates a suite of on-chip peripherals, such as a 5-channel 8-bit Analog-to-Digital Converter (ADC), which is essential for reading inputs from sensors and potentiometers in real-time. It also features an integrated precision internal 4 MHz oscillator, reducing the need for external clock components and saving both board space and system cost.

The PIC16C505-04I/SL is offered in a 14-pin SOIC (Small Outline Integrated Circuit) package, making it suitable for space-constrained applications. Its operating voltage range is from 2.5V to 5.5V, supporting both low-power and standard voltage operations. This, combined with its power-saving sleep mode, enables the design of efficient battery-powered devices.

Typical applications for this robust microcontroller include consumer electronics, sensor interfaces, motor control systems, and various low-cost automated control systems where reliability and final product cost are paramount.

ICGOODFIND: The PIC16C505-04I/SL is a classic, cost-optimized OTP microcontroller that offers a solid blend of essential peripherals, including an ADC and internal oscillator, making it a practical choice for high-volume production of embedded control systems.

Keywords: OTP Memory, 8-Bit Microcontroller, RISC Architecture, Analog-to-Digital Converter (ADC), Low-Cost Control.