C8051F388-GQR

Overview

The C8051F388-GQR is an 8-bit mixed-signal System-on-Chip microcontroller from the Silicon Labs C8051F38x family, housed in a 48-pin TQFP package. It features a high-speed CIP-51 core operating at up to 48 MIPS with pipelined architecture. The device integrates 64 kB of in-system programmable Flash memory and 4352 bytes of RAM. Key peripherals include a 10-bit ADC supporting up to 500 ksps, two comparators, dual UARTs, dual I2C/SMBus interfaces, SPI, and an External Memory Interface (EMIF). It operates on a supply voltage of 2.7 V to 5.25 V and supports industrial temperatures from -40°C to +85°C.

Feature Summary

• High-performance CIP-51 core executing most instructions in one or two system clocks for efficient processing.
• Integrated analog subsystem featuring a 10-bit ADC with multiplexer, internal reference, and temperature sensor.
• Comprehensive digital connectivity including dual enhanced UARTs, dual SMBus, SPI, and external memory interface.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.

Applications

• Industrial control systems requiring mixed-signal processing
• Data acquisition systems utilizing high-speed ADC capabilities
• Embedded devices needing robust serial communication interfaces

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package type. Check for current lifecycle status as this series may be marked Not Recommended for New Designs. Ensure environmental compliance documentation aligns with project requirements before finalizing procurement orders.

Selection Notes

Select this model when 64 kB Flash and 4352 bytes RAM are necessary for complex applications. Choose over variants with less memory if code size exceeds 32 kB limits. Consider the 48-pin TQFP package constraints against available PCB real estate. Evaluate the need for the External Memory Interface if additional storage expansion beyond on-chip Flash is required.

Part Context

This component belongs to the C8051F38x family of fully integrated mixed-signal SoCs. It shares architectural similarities with the C8051F34x series but offers expanded memory and peripheral options. The CIP-51 core provides significant performance improvements over traditional 8051 implementations while maintaining compatibility.

Replacement Considerations

Public confirmed substitute part numbers: C8051F389-GQR, C8051F38A-GQR, C8051F38B-GQR.