C8051F912-GUR

Overview

The C8051F912-GUR is an 8-bit microcontroller from Silicon Labs, part of the C8051F9xx series. It features a high-speed 8051 core operating at up to 25 MHz with pipelined architecture. The device includes 16 kB of in-system programmable Flash memory and 768 bytes of RAM. Key analog peripherals consist of a 12-bit SAR ADC with up to 15 external inputs, two comparators, and a built-in temperature sensor. Power management is supported by a DC-DC converter and LDO regulator, enabling operation across a 0.9 V to 3.6 V supply range. Communication interfaces include SMBus, dual SPI, and UART.

Feature Summary

• Ultra-low power consumption with multiple sleep modes and fast wake-up times
• Integrated DC-DC converter supporting single-cell battery operation down to 0.9 V
• High-performance 8051 core executing 70% of instructions in one or two system clocks
• On-chip debug circuitry for full-speed non-intrusive in-system debugging

Applications

• Portable devices requiring extended battery life
• Smart metering systems
• RFID tags
• Personal medical devices
• Sensor interface nodes

Procurement Notes

Verify the specific ordering suffix 'GUR' against the manufacturer's current documentation to confirm package type and tape-and-reel specifications. Confirm availability status as product lifecycle changes may affect procurement channels. Ensure compatibility with existing development tools and compiler support for the C8051F9xx family before finalizing orders.

Selection Notes

Select this component when low voltage operation below 1.8 V is required using a single cell battery. The integrated DC-DC converter allows efficient power management in space-constrained designs. Choose this model over variants with less Flash if code size exceeds 8 kB. Verify that the 12-bit ADC resolution meets application requirements compared to 10-bit alternatives.

Part Context

This MCU belongs to the C8051F91x/90x family designed for ultra-low power applications. It shares architectural similarities with other members like the C8051F912-D-GM but differs in packaging and shipping configuration. The GUR suffix typically denotes a specific reel quantity and package variant within the QFN or QSOP families offered by Silicon Labs.

Replacement Considerations

Direct substitutes include other C8051F912 variants such as C8051F912-D-GM, provided pinout and package dimensions match the PCB layout. Cross-reference datasheet revisions to ensure peripheral register compatibility.