Microchip AT89C51CC03UA-S3SUM: An 8-Bit Microcontroller with Integrated CAN Controller and Flash Memory

The Microchip AT89C51CC03UA-S3SUM stands as a robust and highly integrated 8-bit microcontroller, purpose-built for applications demanding reliable communication and robust control within challenging environments. As a core member of the classic 8051 family, it leverages a proven architecture while integrating modern peripherals, most notably an on-chip Controller Area Network (CAN) controller, making it a compelling solution for automotive, industrial, and embedded networking applications.

At its heart, the microcontroller features an optimized 8051 core, operating at speeds up to 32 MHz. This provides a powerful and efficient processing backbone for a wide range of tasks. A significant advantage is its on-chip 64KB Flash memory, which is both reprogrammable and non-volatile, allowing for flexible code storage and easy field updates. This is complemented by 2KB of RAM for data handling and an additional 2KB of EEPROM for storing critical parameters that must be retained even after a power cycle.

The defining feature of the AT89C51CC03UA-S3SUM is its fully integrated CAN 2.0B controller. This peripheral supports both 11-bit (standard) and 29-bit (extended) identifiers and operates at data rates of up to 1 Mbit/s. The inclusion of this industrial-strength communication protocol enables the microcontroller to serve as a central node in a distributed network, such as in-vehicle communication systems, industrial automation, or building control, where reliable, noise-immune messaging is paramount.

Beyond its communication prowess, the device is equipped with a rich set of peripherals to minimize external component count and simplify system design. This includes a 10-bit Analog-to-Digital Converter (ADC) with 8 input channels for precise sensor data acquisition, a powerful 16-bit/8-bit PWM unit for motor control and power regulation, and standard communication interfaces like UART, SPI, and I²C for connecting to other system components. Its operating voltage range of 2.7V to 5.5V further enhances its suitability for low-power and battery-operated scenarios.

ICGOODFIND: The Microchip AT89C51CC03UA-S3SUM successfully merges the simplicity and widespread knowledge of the 8051 core with critical modern features. Its integrated CAN controller and substantial Flash memory make it an exceptionally capable and cost-effective solution for developers designing connected control systems that require durability, real-time performance, and robust network communication.

Keywords:

1. CAN Controller

2. 8-Bit Microcontroller

3. Flash Memory

4. 8051 Architecture

5. Industrial Applications