C8051F231-GQR

Overview

The C8051F231-GQR is an 8-bit microcontroller from the Silicon Labs C8051F2xx series, featuring a high-speed 8051-compatible core operating at up to 25 MHz. It integrates 8 KB of in-system programmable Flash memory and includes on-chip analog peripherals such as a 12-bit ADC and a DAC. The device supports full-duplex UART, SPI, and SMBus interfaces for communication. It operates within a voltage range of 2.7 V to 3.6 V and is available in a 32-lead LQFP package.

Feature Summary

• Integrates a high-performance 8051-compatible CPU with full instruction set compatibility.
• Includes on-chip analog peripherals comprising a 12-bit ADC and a 12-bit DAC.
• Supports multiple serial communication protocols including UART, SPI, and SMBus.
• Features in-system programmable Flash memory for code storage.

Applications

• Industrial control systems requiring precise analog signal acquisition
• Battery-powered devices utilizing low-voltage operation
• Data acquisition systems with integrated sensor interfaces
• Embedded applications needing mixed-signal processing capabilities

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against the 32-LQFP specification. Check for end-of-life notices or obsolescence status prior to procurement. Ensure environmental compliance documentation matches project requirements. Validate supply chain sources to prevent counterfeit components.

Selection Notes

Select this component when a fully integrated mixed-signal MCU is required. Consider the 25 MHz clock speed and 8 KB Flash capacity for application complexity. Evaluate the 12-bit ADC resolution against system accuracy needs. Verify that the 32-pin LQFP package fits the PCB layout constraints. Compare power consumption specifications against battery life requirements.

Part Context

This part belongs to the C8051F2xx family of mixed-signal microcontrollers. These devices are designed for applications combining digital control with analog signal processing. The series offers a balance of performance and integration, reducing external component count. The GQR suffix indicates the specific lead-free tape-and-reel packaging variant.

Replacement Considerations

Check for direct cross-reference parts within the C8051F2xx series. Verify pin-to-pin compatibility if substituting with other 32-pin LQFP MCUs. Review software compatibility for different Flash sizes or peripheral counts. Confirm electrical characteristics match the original design specifications.