C8051F386-GQR

Overview

The C8051F386-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 64 kB of in-system programmable Flash memory and 2304 bytes of RAM. The device includes a USB 2.0 compliant full-speed function controller with integrated transceiver and clock recovery. Digital peripherals consist of four UARTs, two SMBus/I2C interfaces, one SPI, six 16-bit timers, and a Programmable Counter Array. Analog features include a 10-bit ADC with up to 500 ksps sampling rate, two comparators, and an internal voltage reference. It operates on a 2.7 V to 5.25 V supply within a -40°C to +85°C temperature range.

Feature Summary

• Integrated USB 2.0 Full-Speed Function Controller with built-in transceiver and clock recovery eliminating external components
• High-performance 8051 Core executing instructions in 1 or 2 system clocks for up to 48 MIPS throughput
• On-chip analog subsystem including a 10-bit ADC with multiplexer, dual comparators, and temperature sensor
• Comprehensive digital peripheral set supporting multiple serial communication protocols and timer functions

Applications

• USB-enabled embedded control systems
• Data acquisition devices requiring analog-to-digital conversion
• Industrial monitoring applications utilizing serial communication interfaces
• Battery-powered equipment supported by wide voltage operation ranges

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package integrity upon receipt as surface-mount devices are sensitive to physical damage. Cross-reference datasheet revisions to ensure compatibility with existing firmware and hardware designs. Check for specific manufacturing lot codes if traceability is required for quality assurance processes.

Selection Notes

Select this model when USB connectivity and moderate analog performance are required alongside standard 8051 architecture. Compare against other C8051F38x variants regarding RAM size and pin count requirements. Ensure the 48-pin TQFP package fits the target PCB layout constraints. Evaluate power consumption profiles against application duty cycles to confirm compliance with thermal and energy specifications.

Part Context

This component belongs to the C8051F38x series of mixed-signal microcontrollers designed for cost-sensitive USB applications. The family shares a common instruction set and peripheral architecture while varying in memory capacity and I/O configurations. The C8051F386 variant specifically targets designs needing 64 kB Flash and 2.3 kB RAM within a compact footprint.

Replacement Considerations

Direct substitutes within the same family include C8051F380, C8051F382, and C8051F384, provided pinout and memory differences are acceptable. Verify cross-compatibility before replacing legacy units.