C8051F965-A-GMR

Overview

The C8051F965-A-GMR is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, featuring an 8051 core operating at a maximum frequency of 25MHz. It integrates 64KB of in-system programmable Flash memory and 8.25KB of RAM. The device includes 16-channel analog-to-digital converters with 10-bit or 12-bit resolution. It operates within a supply voltage range of 1.8V to 3.8V and supports interfaces including SMBus, SPI, and UART/USART. The component is housed in a 40-QFN (6x6) package and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates high-resolution analog-to-digital conversion capabilities suitable for precision sensing applications
• Provides substantial non-volatile program storage and data memory for complex embedded control tasks
• Supports multiple standard serial communication protocols for flexible system connectivity

Applications

• Battery-powered metering systems requiring low power consumption
• Precision instrumentation utilizing high-resolution ADC inputs
• Industrial control devices needing robust serial communication interfaces

Procurement Notes

Verify the specific suffix 'A' confirms the correct silicon revision and performance grade for your design requirements. Ensure the 40-QFN package dimensions align with your PCB footprint constraints. Confirm RoHS compliance status matches your manufacturing regulations. Check for moisture sensitivity level handling procedures during assembly to prevent package damage.

Selection Notes

Select this component when an 8-bit architecture suffices for processing needs while requiring integrated high-resolution ADCs. Consider the 1.8V to 3.8V operating range for compatibility with single-cell battery supplies. Evaluate the 64KB Flash capacity against application code size requirements. Compare pin counts and peripheral availability against other C8051F9xx variants if fewer resources are needed.

Part Context

This part belongs to the C8051F9xx family of mixed-signal microcontrollers designed for efficiency. These devices combine a standard 8051 core with extensive on-chip peripherals. The family targets applications demanding precise analog measurement alongside digital control logic. The C8051F965 variant specifically emphasizes analog performance through its multi-channel ADC configuration.

Replacement Considerations

Consult official substitution lists for compatible parts within the C8051F9xx series. Verify pinout compatibility before replacing with variants like the C8051F965-B-GMR. Ensure software compatibility remains intact when switching between different silicon revisions or package types.