Microchip PIC16C76-04E/SP: A Robust 8-Bit CMOS Microcontroller with OTP Memory

The Microchip PIC16C76-04E/SP stands as a significant component in the landscape of embedded control systems. As an 8-bit microcontroller unit (MCU) fabricated with CMOS technology, it offers a compelling blend of performance, power efficiency, and reliability for a wide array of industrial, automotive, and consumer applications. Its defining characteristic is the integration of One-Time Programmable (OTP) Memory, which provides a secure and cost-effective solution for high-volume production runs where firmware stability is paramount.

Architecturally, the PIC16C76 is built upon Microchip's proven RISC-based PIC® core. This design philosophy ensures that a majority of instructions execute in a single clock cycle, achieving a throughput of up to 1 MIPS per MHz. Operating at a maximum frequency of 4 MHz (as denoted by the -04 suffix), this MCU delivers a solid balance of processing speed and power consumption. The CMOS technology is instrumental in achieving low power requirements, making it suitable for battery-operated or energy-sensitive devices.

A key feature of this microcontroller is its on-chip OTP program memory. Unlike EPROM or flash-based alternatives, OTP memory can be programmed only once after manufacture. This eliminates the possibility of accidental firmware modification or reverse engineering in the field, enhancing product security and integrity. For developers, this means that code must be thoroughly debugged and validated using windowed CERQUIP or flash-based versions before the final code is committed to the OTP devices for mass production.

The peripheral set of the PIC16C76-04E/SP is robust and designed for embedded control. It includes:

35 single-word instructions for simplified programming.

5 bidirectional I/O ports with individual direction control, providing ample interfaces for sensors, actuators, and communication.

8-bit analog-to-digital converter (ADC) with multiple channels, enabling the MCU to interface directly with analog sensors.

Multiple timer modules for precise timing and event capture/compare functions.

Synchronous Serial Port (SSP) which can be configured as either SPI or I2C, facilitating communication with other peripherals like memory chips, sensors, and display drivers.

The "/SP" suffix indicates the device is supplied in a Standard Plastic (SP) DIP package, which is ideal for prototyping, development, and applications where through-hole mounting is preferred for its durability and ease of use.

ICGOODFIND: The Microchip PIC16C76-04E/SP is a quintessential OTP microcontroller that excels in cost-sensitive, high-volume manufacturing where firmware is fixed and security is a priority. Its combination of a efficient RISC core, versatile peripherals like an ADC and serial communication, and the inherent security of OTP memory makes it a enduring choice for dependable embedded control solutions.

Keywords: OTP Memory, 8-Bit Microcontroller, CMOS Technology, RISC Architecture, Embedded Control