C8051F966-B-GQR

Overview

The C8051F966-B-GQR is an 8-bit microcontroller from Silicon Labs, based on the enhanced 8051 core. It features 32KB of Flash program memory and 8KB of RAM. The device operates at a maximum clock frequency of 25MHz within a supply voltage range of 2.7V to 3.6V. It is housed in an 80-pin TQFP package (12x12mm) and supports an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates a DC-DC buck converter for efficient power management
• Includes hardware support for LCD driving capabilities
• Features built-in AES encryption for secure data processing

Applications

• Battery-powered embedded systems requiring low power consumption
• Secure communication devices utilizing hardware encryption
• Industrial control units with display interfaces

Procurement Notes

Verify the specific suffix 'B' against the official datasheet to confirm pinout and feature set variations. Ensure the 80-TQFP package dimensions match your PCB footprint requirements. Confirm RoHS compliance status through current manufacturer documentation before finalizing procurement.

Selection Notes

Select this component when an 8-bit MCU requires integrated power regulation via a buck converter. It is suitable for applications needing LCD interface support without external drivers. Consider the 25MHz performance limit and 32KB memory capacity relative to application complexity.

Part Context

This part belongs to the C8051F966 series, which focuses on mixed-signal integration. The series combines standard 8051 functionality with specialized peripherals like LCD controllers and crypto engines. The GQR suffix indicates surface-mount packaging in a reel format.

Replacement Considerations

Check for other variants within the C8051F966 family that may offer different memory sizes or package options. Verify compatibility with existing firmware due to potential peripheral register differences between series members.