C8051F316-GMR

Overview

The C8051F316-GMR is an 8-bit microcontroller from the Silicon Labs C8051F31x family, featuring a CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It includes 16 kB of ISP Flash memory and 1280 bytes of internal data RAM. The device integrates a 12-bit ADC supporting up to 200 ksps conversion rates and up to 21 external inputs. It operates within a supply voltage range of 2.7 V to 3.6 V and supports temperatures from –40 °C to +85 °C. The component is housed in a 24-pin QFN package.

Feature Summary

• Integrates a high-speed pipelined CIP-51 microcontroller core for efficient instruction execution.
• Includes on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Features programmable digital I/O ports that are 5 V tolerant with high sink current capabilities.
• Provides hardware-enhanced serial communication interfaces including UART, SMBus, and SPI.

Applications

• Industrial control systems requiring analog signal processing
• Embedded sensor nodes utilizing internal temperature sensing
• Battery-powered devices leveraging low-power stop modes
• Data acquisition systems using the integrated 12-bit ADC

Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature rating. Confirm RoHS compliance status as required by project specifications. Check manufacturer documentation for end-of-life or not recommended for new design notices. Ensure compatibility with existing development tools and debug adapters. Validate pinout configurations against the target PCB layout requirements.

Selection Notes

Select this model when 16 kB of program memory and 1280 bytes of RAM are sufficient for the application logic. Choose this variant over other family members if the 24-pin QFN package fits the board constraints. Consider this part for designs needing a 12-bit ADC and multiple serial interfaces. Verify that the 2.7 V to 3.6 V supply range matches the system power architecture.

Part Context

This component belongs to the C8051F31x series of mixed-signal microcontrollers. The family shares a common CIP-51 core and peripheral set, differing primarily in memory size, package options, and specific analog features. The C8051F316 variant specifically offers 16 kB Flash and a 24-pin QFN footprint, distinguishing it from smaller memory or larger package variants within the same product line.

Replacement Considerations

Consult official Silicon Labs documentation for verified substitute part numbers. Cross-reference memory sizes and package dimensions before substitution. Ensure peripheral availability matches the original design requirements.