C8051F911-D-GU

Overview

The C8051F911-D-GU is an 8-bit microcontroller from Silicon Labs featuring a high-speed 8051 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 voltage comparators, and multiple digital peripherals including SMBus, SPI, and UART. Operating on a supply voltage range of 0.9 V to 3.6 V, it supports ultra-low power modes down to 10 nA sleep current.

Feature Summary

• Ultra-low power operation with sleep mode currents as low as 10 nA and fast wake-up times
• Integrated 10-bit analog-to-digital converter with programmable throughput and auto-averaging accumulator
• High-speed pipelined 8051 core executing instructions in one or two system clocks
• Built-in DC-DC converter enabling efficient single-cell battery operation

Applications

• Single or dual battery powered embedded systems
• Portable consumer electronics requiring extended battery life
• Industrial control applications utilizing the integrated comparators and ADC
• Low-power sensor interfaces leveraging the capacitive touch sense inputs

Procurement Notes

Verify the specific suffix 'D-GU' against official documentation to confirm package type and temperature rating. Confirm availability status as distribution listings may indicate end-of-life or discontinuation for certain variants. Ensure compatibility with required programming interfaces and development tools before procurement.

Selection Notes

Select this component when a balance of processing speed and extreme low-power consumption is required. The integrated DC-DC converter makes it suitable for single-cell battery applications. Consider the 10-bit ADC resolution and available I/O count for interface requirements. Verify that the 24-pin QFN package fits the mechanical constraints of the design.

Part Context

This part belongs to the C8051F91x family of mixed-signal microcontrollers. These devices are designed for applications demanding high performance alongside minimal power usage. The family shares a common architecture but varies in memory size and peripheral configurations. This specific model offers 16 kB of Flash storage.

Replacement Considerations

Check for direct pin-compatible substitutes within the C8051F9xx series, such as the C8051F912, noting differences in ADC resolution and operating voltage ranges. Review Silicon Labs application notes for migration guidelines between related MCU families.