C8051F972-A-GMR

Overview

The C8051F972-A-GMR is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, utilizing a standard 8051 core architecture. It features 32KB of in-system programmable Flash memory and 8KB of RAM. The device operates at clock speeds up to 25MHz and supports a supply voltage range of 1.8V to 3.6V. It integrates extensive analog peripherals, including a 28-channel 12-bit ADC and multiple DACs. Communication interfaces include I2C, SPI, and UART/USART. The component is housed in a 32-pin QFN package with exposed paddle for surface mount assembly.

Feature Summary

• Integrates high-resolution analog-to-digital conversion capabilities with numerous input channels for precise signal acquisition.
• Provides flexible digital communication options through standard serial interfaces for system connectivity.
• Includes on-chip temperature sensing and power management peripherals for autonomous monitoring.

Applications

• Data acquisition systems requiring multi-channel sensor interfacing
• Industrial control units with mixed-signal processing needs
• Battery-powered instrumentation utilizing low-voltage operation

Procurement Notes

Verify the specific suffix 'A' against the manufacturer's latest datasheet to confirm pinout compatibility and electrical characteristics. Ensure the 'GMR' designation matches the required reel packaging format for automated assembly lines. Cross-reference the RoHS compliance status with current environmental regulations for your target market before finalizing procurement orders.

Selection Notes

Select this component when a balance of moderate program memory and high analog integration is required within a compact footprint. It serves as a suitable alternative to higher-speed families if cost sensitivity or legacy 8051 software compatibility is prioritized over maximum processing throughput. Evaluate the 25MHz speed limit against real-time control loop requirements.

Part Context

This part belongs to the C8051F9xx family, which distinguishes itself by offering significantly higher analog peripheral density compared to earlier C8051F models. While sharing the core instruction set with other 8-bit variants, it targets applications demanding complex signal conditioning directly on the MCU, reducing external component count.

Replacement Considerations

Direct replacements within the same package and pinout include the C8051F971 and C8051F975. Verify that the substitute part number shares the identical Flash size and peripheral configuration to ensure software binary compatibility without modification.