C8051F314-GQ

Overview

The C8051F314-GQ is an 8-bit microcontroller from the Silicon Labs C8051F31x family, featuring a high-speed CIP-51 core operating at up to 25 MHz. It integrates 8 kB of in-system programmable Flash memory and 1280 bytes of internal data RAM. The device includes four general-purpose 16-bit counter/timers, a 16-bit Programmable Counter Array (PCA), and hardware-enhanced serial ports including UART, SMBus, and SPI. It operates within a supply voltage range of 2.7 V to 3.6 V and supports a temperature range of –40 °C to +85 °C.

Feature Summary

• High-performance 8051-compatible core with pipelined architecture for improved instruction throughput
• Integrated on-chip debug circuitry enabling non-intrusive in-system debugging without external emulators
• Programmable digital I/O crossbar allows flexible peripheral-to-pin mapping
• Hardware-accelerated serial communication interfaces including UART, SMBus, and SPI

Applications

• Industrial control systems requiring robust 8-bit processing
• Embedded sensor interfaces utilizing SMBus or SPI protocols
• Battery-powered devices benefiting from low-power stop modes
• General-purpose embedded applications needing in-system programming

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or certified partners. Confirm package integrity and pin alignment against the 32-pin LQFP specification. Ensure storage conditions comply with moisture sensitivity levels prior to reflow soldering. Validate that the specific revision matches design requirements, noting the manufacturer's recommendation regarding new designs.

Selection Notes

Select this model when 8 kB Flash capacity suffices for application code, distinguishing it from the 16 kB variants in the F31x series. Choose the 32-pin LQFP package for board layout constraints compatible with this footprint. Consider the absence of an integrated ADC in this specific variant compared to other members of the family. Evaluate power consumption profiles against the specified typical operating currents for the target clock frequency.

Part Context

This component belongs to the C8051F31x mixed-signal microcontroller family, which provides a highly integrated solution combining analog and digital peripherals on a single chip. The family shares a common CIP-51 core architecture but varies in memory size, package options, and peripheral availability. The C8051F314 specifically offers a mid-range memory configuration within this lineup.

Replacement Considerations

Direct functional substitutes within the same package include C8051F310-GQ, C8051F311-GQ, C8051F312-GQ, C8051F313-GQ, C8051F315-GQ, C8051F316-GQ, and C8051F317-GQ. Note that these alternatives may differ in Flash capacity or available analog peripherals such as ADCs.