C8051F383-GM

Overview

The C8051F383-GM is a mixed-signal system-on-chip microcontroller from Silicon Labs, featuring an 8051 core with up to 48 MHz operation. It integrates 32 kB of in-system programmable Flash memory and 2.304 kB of RAM. The device includes a full-speed USB 2.0 controller with integrated transceiver, a 10-bit ADC supporting up to 500 ksps, two analog comparators, and a built-in temperature sensor. Digital peripherals consist of six timers, a programmable counter array, enhanced SPI, two SMBus/I²C interfaces, and two UARTs. It operates within a voltage range of 2.7 V to 5.25 V and supports an industrial temperature range of –40 °C to +85 °C.

Feature Summary

• Integrates a high-speed pipelined 8051 core capable of executing most instructions in one or two system clocks for efficient processing.
• Includes a full-speed USB 2.0 function controller with an integrated transceiver, eliminating the need for external components.
• Features a 10-bit analog-to-digital converter with a built-in multiplexer and a sampling rate up to 500 ksps.
• Provides flexible digital I/O with a programmable crossbar allowing peripheral pin assignment.

Applications

• USB-enabled data acquisition systems
• Portable medical diagnostic equipment
• Industrial process control and monitoring
• Embedded communication modems

Procurement Notes

Verify the specific package type matches the design requirements, as this model utilizes a 32-pin QFN form factor. Confirm that the operating voltage and temperature ranges align with the target application environment. Ensure that the firmware development tools support the CIP-51 architecture and the on-chip debug interface for proper validation.

Selection Notes

Select this component when a compact solution combining USB connectivity with high-speed analog signal processing is required. The integrated USB transceiver reduces bill-of-materials complexity compared to discrete solutions. Consider the available GPIO count and peripheral set against the system's interface needs before finalizing the choice.

Part Context

This device belongs to the C8051F38x family of mixed-signal microcontrollers designed for cost-sensitive and high-performance applications. The family shares a common instruction set and peripheral architecture, facilitating migration between different memory configurations within the series while maintaining code compatibility.

Replacement Considerations

Check for newer generations within the Silicon Labs portfolio that offer extended features or improved performance metrics. Verify pinout and register compatibility if substituting with other members of the C8051F3xx series to ensure seamless integration without hardware redesign.

FAQ

Does the C8051F383-GM require an external crystal for USB operation?

No, the device features an integrated clock recovery mechanism that allows full-speed USB operation without an external crystal.

What is the maximum sampling rate of the onboard ADC?

The 10-bit ADC supports a maximum sampling rate of 500 ksps.