C8051F912-D-GMR

Overview

The C8051F912-D-GMR is an 8-bit microcontroller from Silicon Labs, featuring a CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 16 kB of in-system programmable Flash and 768 bytes of RAM within a 24-pin QFN package. The device supports a supply voltage range of 0.9 V to 3.6 V and includes a built-in DC-DC converter for one-cell operation. Key peripherals include a 12-bit ADC with up to 75 ksps throughput, two comparators, four general-purpose timers, and multiple serial interfaces.

Feature Summary

• Ultra-low power architecture with sleep modes as low as 10 nA and rapid wake-up capabilities
• Integrated 12-bit SAR ADC with auto-averaging accumulator and programmable window detector
• Built-in DC-DC converter enabling continuous operation from 0.9 V to 3.6 V
• High-speed pipelined 8051 core executing 70% of instructions in one or two system clocks

Applications

• Single or dual battery powered sensor nodes
• Wireless magnetoresistive sensor networks
• Portable medical equipment
• Low-power industrial monitoring systems

Procurement Notes

Verify the specific ordering suffix '-D' against current manufacturer documentation to confirm package type and temperature grade. Confirm availability status as distribution channels may list this part as obsolete or last-time buy. Ensure compatibility with existing PCB footprints for the 24-QFN package before finalizing procurement plans.

Selection Notes

Select this component when ultra-low power consumption is critical alongside analog signal processing requirements. The integrated DC-DC converter makes it suitable for single-cell battery applications where voltage regulation is necessary. Compare memory sizes and ADC resolution against other C8051F9xx variants if different peripheral counts are required.

Part Context

This MCU belongs to the C8051F91x-C8051F90x family, designed for mixed-signal applications requiring high integration in small form factors. It shares architectural similarities with other C8051F series devices but distinguishes itself through its specific combination of low-voltage operation and analog peripherals.

Replacement Considerations

Public confirmed substitute part numbers: None identified.