C8051F901-D-GM

Overview

The C8051F901-D-GM is an 8-bit microcontroller from Silicon Labs, featuring a high-speed CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 16 kB of in-system programmable Flash memory and 768 bytes of RAM. The device includes a 10-bit SAR ADC with up to 300 ksps throughput, two comparators, and a built-in DC-DC converter supporting 0.9 V to 3.6 V operation. It offers 16 I/O pins, hardware SMBus, dual SPI, and UART interfaces within a 24-pin QFN package.

Feature Summary

• Ultra-low power architecture with sleep modes down to 10 nA and fast wake-up times
• Integrated DC-DC converter enabling single-cell battery operation from 0.9 V
• High-resolution analog peripherals including a 10-bit ADC with auto-averaging accumulator
• Flexible digital connectivity with concurrent support for SMBus, SPI, and UART

Applications

• Single or dual battery powered portable devices
• Low-power industrial sensor nodes
• Battery-operated medical instrumentation
• Smart metering applications requiring precise voltage monitoring

Procurement Notes

Verify the specific suffix 'D' indicates the 24-pin QFN package variant when sourcing replacements. Confirm that the 'GM' suffix corresponds to the lead-free and RoHS compliant status required for your assembly process. Check current lifecycle status as this component may be subject to end-of-life notices. Ensure the operating temperature range meets your environmental specifications.

Selection Notes

Select this model if your design requires a balance of moderate Flash capacity and ultra-low power consumption. The integrated DC-DC converter makes it suitable for applications where input voltage varies significantly. Consider the 10-bit ADC resolution sufficient for your signal conditioning needs compared to higher-resolution alternatives in the F91x series.

Part Context

This part belongs to the C8051F9xx family of mixed-signal microcontrollers designed for low-voltage, low-power applications. It shares architectural similarities with the C8051F3xx series but offers enhanced power management features and integrated analog peripherals. The family is known for its fully static operation and on-chip debug capabilities.

Replacement Considerations

Direct substitutes include other members of the C8051F9xx family such as the C8051F911-D-GM, which offers identical pinout and code compatibility but with increased Flash memory capacity. Verify peripheral availability and memory size differences before swapping.