C8051F383-GMR

Overview

The C8051F383-GMR is an 8-bit microcontroller from the Silicon Labs C8051F38x family, featuring a high-speed pipelined 8051 core operating at up to 48 MIPS. It integrates 32 kB of in-system programmable Flash memory and 2.3 kB of RAM. The device includes a full-speed USB 2.0 controller with integrated transceiver and clock recovery, eliminating the need for external components. Analog peripherals consist of a 10-bit ADC supporting up to 500 ksps, two comparators, and an internal voltage reference. Digital interfaces include SPI, dual SMBus/I2C, dual UARTs, and six 16-bit timers.

Feature Summary

• Integrated Full-Speed USB 2.0 Controller
• High-Speed Pipelined 8051 Core
• Mixed-Signal System-on-Chip Architecture
• In-System Programmable Flash Memory

Applications

• USB-enabled embedded systems
• Data acquisition applications
• Industrial control systems
• Medical diagnostic equipment

Procurement Notes

Verify the specific suffix 'GMR' corresponds to the QFN-32 package and tape-and-reel packaging configuration required for your assembly process. Confirm that the component revision matches the current datasheet version, as this family is marked Not Recommended for New Designs. Ensure compatibility with existing design files before finalizing procurement orders.

Selection Notes

Select this model when a compact 32-pin QFN package is required alongside USB connectivity and mixed-signal capabilities. The C8051F383 variant provides a balanced memory footprint suitable for moderate complexity firmware. Consider the available I/O count and peripheral set against system requirements to ensure optimal pin utilization without unnecessary cost overhead.

Part Context

This component belongs to the C8051F38x Full Speed Flash MCU family, which shares a common architecture across multiple variants differing primarily in memory size and package options. The GMR suffix specifically denotes the 5x5 mm 32-pin QFN package format. This family is designed for cost-sensitive applications requiring robust analog performance and standard USB communication protocols.

Replacement Considerations

Direct substitutes within the same family include C8051F381-GMR (64 kB Flash) or C8051F385-GMR (16 kB Flash), provided memory requirements align. Package-compatible alternatives may exist in other series, but software migration will be necessary due to architectural differences.