C8051F961-A-GM

Overview

The C8051F961-A-GM is an ultra-low power 8-bit microcontroller from the Silicon Labs C8051F96x family. It features a high-speed pipelined CIP-51 core with up to 128 kB of in-system programmable Flash and 8 kB of internal data RAM. The device integrates a 12-bit, 16-channel ADC supporting up to 75 ksps, two low-current comparators, and an LCD controller capable of driving up to 128 segments. Key peripherals include a DC-DC buck converter for dynamic voltage scaling, hardware AES, DMA, CRC engines, and multiple serial interfaces.

Feature Summary

• Ultra-low power architecture featuring deep sleep modes with nanoampere current consumption and rapid wake-up capabilities
• Integrated metering-specific peripherals including a DC-DC buck converter and a low-power pulse accumulator for sensor interfacing
• Hardware acceleration engine combining AES encryption, DMA, CRC calculation, and encoding/decoding blocks
• High-resolution analog subsystem with a 12-bit SAR ADC, autonomous burst mode, and integrated temperature sensor

Applications

• Smart metering systems requiring precise energy measurement and secure data transmission
• Portable battery-powered devices necessitating extended operational life through dynamic voltage scaling
• Industrial control applications utilizing LCD displays and robust analog signal processing
• Wireless communication nodes leveraging hardware-accelerated security protocols

Procurement Notes

Verify the specific suffix 'A' against the manufacturer's latest datasheet revision to confirm pinout compatibility and electrical characteristics. Ensure the QFN package variant matches your PCB land pattern specifications. Cross-reference the ordering part number with official distributor catalogs to validate availability and lot traceability requirements before finalizing procurement orders.

Selection Notes

Select this component when system design demands high integration of analog and digital functions within a constrained power budget. The inclusion of a DC-DC converter allows for efficient voltage regulation across varying load conditions. Evaluate the available I/O count and peripheral set against interface requirements to ensure optimal utilization of the 40-pin or larger package options provided by the F96x family.

Part Context

This MCU belongs to the C8051F96x series, designed specifically for mixed-signal applications. It combines a standard 8051-compatible instruction set with advanced silicon enhancements. The family targets cost-sensitive yet performance-critical embedded environments where low power consumption and on-chip peripheral density are primary selection criteria for engineering teams.

Replacement Considerations

Direct substitutes within the same family include other C8051F96x variants differing primarily in memory size or package type. Verify functional equivalence regarding peripheral availability and clock speeds when considering alternative SKUs from the same product line.