C8051F310-GQ

Overview

The C8051F310-GQ is an 8-bit microcontroller from the Silicon Labs C8051F31x family, housed in a 32-pin LQFP package. It features a CIP-51 core operating at up to 25 MHz with 16 kB of ISP Flash and 1280 bytes of internal RAM. The device includes a 12-bit ADC supporting up to 200 ksps, two comparators, and hardware-enhanced serial interfaces including UART, SMBus, and SPI. It operates on a supply voltage of 2.7 V to 3.6 V within a temperature range of –40 °C to +85 °C.

Feature Summary

• Integrated full-speed, non-intrusive on-chip debug circuitry eliminating the need for external emulators
• Hardware-enhanced serial ports for efficient communication via UART, SMBus, and SPI
• Programmable precision internal oscillator supports crystal-less UART operation
• All digital I/O pins are 5 V tolerant with high sink current capability

Applications

• Industrial control systems requiring mixed-signal processing
• Battery-powered devices utilizing low-power stop modes
• Embedded sensor interfaces using the onboard ADC and comparators
• Cost-sensitive applications needing integrated flash programming

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or certified partners. Confirm the specific revision level matches design requirements, as the datasheet indicates this family is not recommended for new designs. Ensure environmental compliance documentation aligns with target market regulations before finalizing procurement orders.

Selection Notes

Select this component when a fully mixed-signal 8051 solution is required with integrated analog peripherals. The C8051F310 variant specifically provides 16 kB of Flash memory compared to the 8 kB available in other family members. Consider the 32-pin LQFP package constraints for PCB layout and verify that the 2.7 V to 3.6 V supply range fits the system power architecture.

Part Context

This part belongs to the C8051F31x series of high-speed mixed-signal microcontrollers. The family shares a common CIP-51 core and peripheral set, differing primarily in memory size and package options. The GQ suffix denotes the 32-pin LQFP package variant, distinct from the QFN packages used by other models in the same series.

Replacement Considerations

Silicon Labs lists the C8051F340 as a next-generation alternative within the C8051F34x family. Verify pin compatibility and peripheral differences when migrating from the C8051F31x series to newer silicon revisions.