C8051F386-GQ

Overview

The C8051F386-GQ is a Full Speed USB Flash Microcontroller Unit (MCU) from Silicon Labs, featuring an 8051-compatible core operating at up to 48 MIPS. It integrates a USB 2.0 compliant controller with full-speed (12 Mbps) and low-speed (1.5 Mbps) capabilities, utilizing integrated clock recovery without external crystals. The device includes 64 kB of in-system programmable Flash memory, 4352 Bytes of RAM, and supports a supply voltage range of 2.7 V to 5.25 V. It is housed in a 48-pin TQFP package.

Feature Summary

• Integrates a high-speed 8051 microcontroller core with pipelined architecture for efficient instruction execution.
• Includes a USB function controller compliant with USB specification 2.0, supporting flexible endpoints and integrated transceiver.
• Features on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Provides versatile digital peripherals including hardware-enhanced SPI, dual I2C/SMBus interfaces, and enhanced UARTs.

Applications

• USB-enabled embedded systems requiring direct connectivity
• Data acquisition devices utilizing the onboard analog peripherals
• Industrial control applications needing robust I/O and communication interfaces

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature rating. Confirm that the component meets all necessary regulatory standards for your target market. Ensure compatibility with existing design tools and programming interfaces before finalizing procurement decisions.

Selection Notes

Select this MCU when a complete solution combining USB connectivity with mixed-signal processing is required. Consider the available pin count and peripheral set relative to system requirements. Evaluate the power consumption characteristics across the specified voltage and temperature ranges to ensure suitability for the intended application environment.

Part Context

This component belongs to the C8051F38x family of Full Speed USB Flash MCUs. The family offers various memory configurations and package options to suit different application needs while maintaining a consistent core architecture and peripheral set. This specific model provides a balance of processing power and connectivity features.

Replacement Considerations

Consult official Silicon Labs documentation for verified substitute part numbers within the same family or compatible series. Ensure any replacement maintains identical pinout, electrical specifications, and software compatibility to avoid redesign efforts.

FAQ

Does the C8051F386-GQ require an external crystal for USB operation?

No, the device features integrated clock recovery, allowing it to operate in full-speed or low-speed USB modes without an external crystal.

What is the maximum operating speed of the CPU core?

The high-speed 8051 µC core can operate at up to 48 MIPS.