C8051F902-D-GMR

Overview

The C8051F902-D-GMR is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, featuring a high-speed pipelined 8051 core operating at up to 25 MIPS. It integrates 8 kB of in-system programmable Flash memory and 768 bytes of RAM. The device includes a 12-bit SAR ADC with up to 15 external inputs, two comparators, and a built-in DC-DC converter supporting operation from 0.9 V to 3.6 V. It offers multiple digital peripherals including SMBus, SPI, and UART interfaces within a compact 24-pin QFN package.

Feature Summary

• Ultra-low power architecture with sleep modes as low as 10 nA for memory retention
• Integrated 12-bit analog-to-digital converter with auto-averaging accumulator
• Built-in DC-DC converter enabling single-cell battery operation down to 0.9 V
• On-chip debug circuitry facilitating non-intrusive in-system debugging

Applications

• Single or dual battery powered portable devices
• Low voltage industrial control systems
• Battery-operated sensor nodes
• Energy-efficient embedded applications

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'D' corresponds to the 24-pin QFN package variant. Check current lifecycle status as this model may be subject to obsolescence notices. Ensure compatibility with existing PCB footprints and thermal requirements before finalizing procurement orders.

Selection Notes

Select this MCU when ultra-low standby current and wide input voltage range are critical. The integrated DC-DC converter simplifies power design for single-cell lithium applications. Consider the 12-bit ADC resolution and available I/O count against system requirements. Evaluate the 24-pin QFN package constraints for board space limitations compared to larger packages.

Part Context

This component belongs to the C8051F9xx family of mixed-signal microcontrollers designed for low-power applications. It shares architectural similarities with the C8051F91x series but features reduced Flash capacity. The device utilizes the CIP-51 core for enhanced performance over standard 8051 implementations while maintaining binary compatibility.

Replacement Considerations

C8051F902-D (Tape & Reel equivalent)

FAQ

What is the minimum operating voltage supported by the C8051F902?

The device supports continuous operation from 0.9 V to 3.6 V, facilitated by its built-in DC-DC converter.

Does the C8051F902 include capacitive touch sensing capabilities?

Yes, the device supports up to 15 capacitive touch sense inputs via its analog multiplexer and comparator resources.