C8051F387-GQR

Overview

The C8051F387-GQR is an 8-bit microcontroller from the Silicon Labs C8051F38x family, featuring a high-speed 8051 core operating at up to 48 MIPS. It integrates 32 kB of in-system programmable Flash memory and 2304 bytes of RAM. The device includes a full-speed USB 2.0 function controller with an integrated transceiver and clock recovery, eliminating the need for external components. Digital peripherals consist of two UARTs, two SMBus interfaces, an SPI port, six 16-bit timers, and a Programmable Counter Array. It operates within a voltage range of 2.7 V to 5.25 V and supports a temperature range of –40 °C to +85 °C.

Feature Summary

• Integrates a full-speed USB 2.0 function controller with an on-chip transceiver and clock recovery circuitry, enabling direct connection without external crystals or resistors.
• Features a pipelined 8051 CPU core capable of executing instructions in one or two system clocks for high-performance processing.
• Includes comprehensive digital communication interfaces such as dual enhanced UARTs, dual I2C/SMBus ports, and hardware-enhanced SPI.
• Provides flexible interrupt handling and on-chip debug capabilities supporting non-intrusive in-system debugging.

Applications

• Embedded USB peripheral devices requiring direct host connectivity
• Industrial control systems utilizing serial communication protocols
• Data acquisition modules with timer-based event logging
• Battery-powered applications supported by wide voltage input ranges

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package integrity upon receipt, as moisture sensitivity requires proper storage conditions. Review the latest datasheet revision for any updates to electrical characteristics or pin definitions before finalizing design implementations.

Selection Notes

Select this model when a compact 32-pin QFN package is required alongside USB connectivity. Ensure the 32 kB Flash capacity meets application code storage needs. Verify that the 2304-byte RAM allocation suffices for data buffering requirements. Confirm compatibility with existing 8051 development toolchains and software libraries.

Part Context

This component belongs to the C8051F38x series of mixed-signal microcontrollers designed for cost-sensitive embedded applications. The GQR suffix denotes the specific 32-lead Quad Flat No-leads (QFN) package variant. This series emphasizes integration by combining analog peripherals, digital interfaces, and USB functionality into a single silicon die.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for current lifecycle status and recommended next-generation alternatives.