C8051F312-GQ

Overview

The C8051F312-GQ is an 8-bit microcontroller from the Silicon Labs C8051F31x family, featuring a high-speed CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 8 kB of in-system programmable Flash memory and 1280 bytes of internal data RAM. The device includes hardware-enhanced UART, SMBus, and SPI serial ports, four general-purpose 16-bit counter/timers, and a Programmable Counter Array (PCA) with five capture/compare modules. It operates on a supply voltage of 2.7 V to 3.6 V and supports a temperature range of –40 °C to +85 °C.

Feature Summary

• Features a pipelined 8051-compatible core executing 70% of instructions in one or two system clocks for high throughput.
• Includes on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Integrates hardware-enhanced communication interfaces including UART, SMBus, and SPI.
• Provides flexible clock sources with an internal oscillator supporting crystal-less UART operation.

Applications

• Embedded systems requiring in-system programming capabilities
• Industrial control applications utilizing multiple serial communication protocols
• Battery-powered devices benefiting from low-power stop mode operation
• Data acquisition systems using timer and PCA peripherals

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against the 32-pin LQFP specification. Check revision markings against datasheet Rev. 1.8 documentation. Ensure storage conditions comply with moisture sensitivity levels specified for surface-mount devices. Validate that the specific part number matches the required memory configuration.

Selection Notes

Select this model when 8 kB Flash is sufficient for application code requirements. Choose this variant over other C8051F31x members if the 32-pin LQFP package is preferred for PCB layout constraints. Consider this device for designs needing robust digital I/O with 5 V tolerance. Evaluate power consumption specifications against system battery life requirements before finalizing selection.

Part Context

This component belongs to the C8051F31x series of fully integrated mixed-signal microcontrollers. The series offers varying Flash sizes and package options within the same functional architecture. The C8051F312 specifically provides 8 kB Flash, distinguishing it from the 16 kB variants like the C8051F310. All members share the same CIP-51 core and peripheral set.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.