C8051F967-B-GMR

Overview

The C8051F967-B-GMR is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, featuring a standard 8051 core operating at a maximum clock frequency of 25MHz. It integrates 32KB of in-system programmable Flash memory and 8.25KB of RAM. The device includes a mixed-signal subsystem with 16-channel analog-to-digital converters offering 10-bit or 12-bit resolution. It operates within a supply voltage range of 1.8V to 3.8V and supports communication via SMBus, SPI, and UART interfaces.

Feature Summary

• Integrates a high-speed 8051-compatible core with on-chip Flash and RAM for standalone operation
• Includes multiple high-resolution analog-to-digital converters for precise signal acquisition
• Supports standard serial communication protocols including I2C, SPI, and UART

Applications

• Data acquisition systems requiring multi-channel analog input
• Industrial control applications utilizing mixed-signal processing
• Battery-powered devices benefiting from low-voltage operation

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature grade. Confirm end-of-life status as discontinuation notices may affect long-term availability. Ensure compatibility with existing PCB footprints for the QFN package. Check for any recent product change notifications regarding assembly or material composition updates.

Selection Notes

Select this component when an 8-bit architecture with integrated ADCs is required. Compare RAM and Flash sizes against application memory needs. Verify that the 1.8V to 3.8V supply range matches the system power design. Ensure the QFN package fits the mechanical constraints of the target enclosure.

Part Context

This part belongs to the C8051F9xx family of fully integrated mixed-signal microcontrollers. These devices combine a fast 8051 CPU with extensive peripheral sets on a single chip. The family targets cost-sensitive applications needing analog capabilities without external components. The GMR suffix typically indicates a tape-and-reel packaging format for automated assembly.

Replacement Considerations

Check for direct pin-compatible substitutes within the same C8051F9xx series. Verify if higher-density variants like the C8051F930 offer necessary features. Ensure alternative parts maintain the same 8051 core compatibility for software reuse.