C8051F961-A-GMR

Overview

The C8051F961-A-GMR is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, utilizing a high-performance 8051 core. It features 64KB of in-system programmable Flash memory and 4.25KB of RAM. The device operates at clock speeds up to 25MHz with a supply voltage range of 0.9V to 3.6V. It integrates 23 channels of 10-bit analog-to-digital conversion and supports multiple communication interfaces including SMBus, SPI, and UART/USART. The component is housed in a 32-pin QFN package and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Integrates a high-performance 8051 core with significant on-chip memory resources for complex control applications.
• Includes extensive mixed-signal peripherals featuring numerous high-resolution ADC channels and integrated temperature sensing.
• Supports versatile digital communication protocols via configurable serial interfaces for system connectivity.

Applications

• Battery-powered sensor nodes requiring low-voltage operation
• Industrial monitoring systems utilizing analog signal acquisition
• Embedded controllers with serial communication requirements

Procurement Notes

Verify the specific suffix 'A' against the manufacturer's current datasheet to confirm pinout compatibility and electrical characteristics. Ensure the ordering code matches the required tape-and-reel packaging format. Cross-reference the manufacturing date code with any relevant product change notices to guarantee component consistency during production.

Selection Notes

Select this model when a balance of substantial program storage and rich analog peripheral integration is required within a compact footprint. The wide operating voltage range makes it suitable for direct battery interfacing without additional level shifting. Consider the available I/O count and ADC resolution relative to the specific application's data acquisition needs.

Part Context

This component belongs to the C8051F9xx family of fully integrated mixed-signal microcontrollers. These devices are designed to reduce system cost by integrating common external components onto the silicon die. The family shares a consistent instruction set architecture while varying in memory size and peripheral counts to suit different application complexities.

Replacement Considerations

Consult the official Silicon Labs migration guide for verified substitutes within the C8051F9xx series. Verify that alternative part numbers maintain identical pin configurations and electrical specifications to ensure drop-in compatibility without hardware redesign.