C8051F388-GQ

Overview

The C8051F388-GQ is a mixed-signal microcontroller featuring a high-speed 8051 core operating at up to 48 MIPS. It integrates 64 kB of in-system programmable Flash memory and 4352 bytes of RAM. The device includes a 10-bit ADC with up to 500 ksps conversion rate, two comparators, and an internal voltage reference. Digital peripherals consist of hardware-enhanced SPI, two I2C/SMBus interfaces, and two enhanced UARTs. It operates on a supply voltage between 2.7 V and 5.25 V within a temperature range of -40 °C to +85 °C.

Feature Summary

• Integrated on-chip debug circuitry for full-speed, non-intrusive in-system debugging without external emulators.
• Pipelined instruction architecture that executes the majority of instructions in one or two system clocks.
• Supports multiple clock sources including internal oscillators and external crystals with on-the-fly switching capabilities.

Applications

• Motor control systems
• Sensor interface circuits
• Automotive parking assistance modules

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or direct manufacturer channels. Confirm package integrity upon receipt. Ensure ESD precautions are observed during handling. Check datasheet revisions for any specific manufacturing updates relevant to your production timeline.

Selection Notes

Select this component when a highly integrated solution combining analog and digital peripherals is required. It is suitable for applications needing fast data acquisition alongside standard communication protocols. Consider the available I/O count and memory size relative to application complexity before finalizing the design choice.

Part Context

This part belongs to the C8051F38x family of flash MCUs from Silicon Labs. These devices are designed for embedded control applications requiring mixed-signal processing capabilities. The family shares common architectural features while varying in memory size and pin counts to suit different form factors.

Replacement Considerations

Silicon Labs recommends the EFM8BB31F64G-QFN32 as a replacement for this end-of-life part. Verify pinout compatibility and peripheral availability before transitioning designs to the newer Busy Bee series.