CP2104-F03-GM

Controllers Overview

The CP2104-F03-GM is a single-chip USB-to-UART bridge controller manufactured by Silicon Labs. It integrates a USB 2.0 full-speed function controller, transceiver, oscillator, and UART interface within a compact 24-pin QFN package measuring 4x4 mm. The device supports digital supply voltages from 3.0 V to 3.6 V and I/O voltages ranging from 1.8 V to VDD. It features an on-chip voltage regulator providing a 3.45 V output and includes 1024 bytes of one-time programmable ROM for customizing product information. The UART interface supports baud rates from 300 bps to 2 Mbps with configurable data formats and hardware flow control.

Controllers Feature Summary

• Integrates USB 2.0 full-speed controller and transceiver without requiring external resistors or crystals
• Includes 1024-byte one-time programmable ROM for customizable VID, PID, and serial numbers
• Supports complete modem interface signals and hardware/X-On/X-Off handshaking
• Features four user-configurable GPIO pins for status and control applications

Controllers Applications

• Upgrading RS-232 legacy devices to USB interfaces
• Upgrading RS-485 legacy devices to USB interfaces
• Cellular phone and PDA USB interface cables
• USB to RS-232 serial adapters

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct packaging and configuration options. Confirm that the component meets the required environmental specifications for the intended operating temperature range. Cross-reference the datasheet revision to ensure compatibility with existing design files and driver requirements.

Controllers Selection Notes

Select this component when a compact solution is needed to replace RS-232 or RS-485 level translators with minimal PCB space. Ensure the design accommodates the 4x4 mm QFN-24 footprint and provides appropriate thermal relief for the exposed pad. Verify that the host system can support the required USB enumeration and driver installation procedures.

Controllers Part Context

The CP2104-F03-GM belongs to the CP2104 series of USB-to-UART bridge controllers. It is designed as a drop-in replacement for traditional RS-232/RS-485 designs, offering a highly integrated solution that reduces bill of materials and simplifies layout. The device is part of Silicon Labs' broader portfolio of USB interface solutions aimed at accelerating time-to-market for embedded systems.

Controllers Replacement Considerations

For newer designs, the CP2102N devices offer compatible footprints and are recommended as alternatives. Consult the Silicon Labs website for detailed comparison information regarding pinouts and electrical characteristics between these models.