C8051F387-GQ

Overview

The C8051F387-GQ is an 8-bit microcontroller from the Silicon Labs C8051F38x family, featuring a high-speed pipelined 8051-compatible core operating at up to 48 MIPS. It integrates 32 kB of in-system programmable Flash memory and 2.304 kB of RAM. The device includes a USB 2.0 compliant full-speed controller with integrated transceiver and clock recovery, eliminating the need for external components. Digital peripherals consist of two I2C/SMBus interfaces, two UARTs, one SPI, six 16-bit timers, and a Programmable Counter Array. It operates on a voltage supply between 2.7 V and 5.25 V within a temperature range of –40 °C to +85 °C.

Feature Summary

• Integrated USB 2.0 full-speed controller with built-in transceiver and clock recovery
• High-speed 48 MIPS pipelined 8051-compatible processor core
• In-system programmable Flash memory for field upgrades
• Comprehensive digital peripheral set including dual UARTs, dual SMBus, and SPI

Applications

• USB-enabled PC peripherals
• Point-of-sale terminals
• Industrial control systems requiring USB connectivity
• Data acquisition devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package type matches the specific suffix requirements for your PCB layout. Check current lifecycle status as this series may be subject to discontinuation notices. Ensure environmental compliance documentation aligns with regional regulations before finalizing procurement.

Selection Notes

Select this model when a compact 32-pin solution with native USB functionality is required. The QFN-32 package offers a small footprint suitable for space-constrained designs. Consider the 48 MIPS processing speed for applications needing efficient data handling without complex external controllers. Evaluate the available I/O count against system interface requirements.

Part Context

This component belongs to the C8051F38x Full Speed Flash MCU family by Silicon Labs. These are mixed-signal System-on-Chip MCUs designed specifically for USB applications. The family shares a common architecture but varies in memory size and package options. The C8051F387 variant specifically provides 32 kB Flash and utilizes a 32-pin package configuration.

Replacement Considerations

Public confirmed substitute part numbers: C8051F387-GM.