C8051T632-GMR

Overview

The C8051T632-GMR is an 8-bit microcontroller from Silicon Labs, featuring a high-speed 8051 core operating at up to 25 MHz. It utilizes a pipelined instruction set architecture and includes 8 kB of EPROM program memory alongside 768 bytes of RAM. The device integrates multiple communication interfaces including SPI, I2C (SMBus), and UART. Analog capabilities are provided by a 16-channel 10-bit ADC and three analog comparators. It operates within a voltage range of 1.8 V to 3.6 V and supports temperatures from -40°C to +85°C in a 20-pin QFN package.

Feature Summary

• Integrates a high-performance 8051 CPU with pipelined architecture for efficient code execution.
• Includes on-chip mixed-signal peripherals such as multi-channel ADCs and analog comparators.
• Supports standard serial communication protocols via integrated SPI, SMBus, and UART modules.
• Features programmable digital I/O pins for flexible system interfacing.

Applications

• Industrial control systems requiring mixed-signal processing
• Sensor interface circuits utilizing onboard ADC capabilities
• Embedded applications needing serial communication connectivity

Procurement Notes

Verify the specific suffix 'GMR' indicates tape and reel packaging when sourcing components. Confirm that the EPROM variant meets long-term data retention requirements for the intended application environment. Ensure compatibility with the 1.8V to 3.6V supply voltage range during system power design.

Selection Notes

Select this component when a balance of moderate flash capacity and rich analog peripherals is required. The 25 MHz speed suits applications not demanding maximum throughput but requiring low power consumption. Consider the 20-pin QFN form factor for space-constrained designs compared to larger packages in the same family.

Part Context

This part belongs to the C8051T63x series of 8-bit MCUs. It shares architectural similarities with other members like the C8051T631 and C8051T633, differing primarily in memory size and peripheral configuration. The series is designed for cost-sensitive embedded applications requiring robust analog performance.

Replacement Considerations

Direct substitutes include C8051T631-GMR and C8051T633-GMR within the same series. Verify pin compatibility and memory differences before swapping. Other C8051T series devices may require software adaptation due to peripheral variations.