CP2104-F03-GMR

Controllers Overview

The CP2104-F03-GMR 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 4x4 mm QFN-24 package. The device supports self-powered operation at 3.0 V to 3.6 V or bus-powered operation at 4.0 V to 5.25 V. Key electrical parameters include a supply current of 17 mA during normal operation and 200 µA in suspend mode. It features 576-byte receive and transmit buffers, four user-configurable GPIO pins, and an integrated voltage regulator providing a 3.45 V output.

Controllers Feature Summary

• Integrates USB 2.0 full-speed controller and transceiver without requiring external resistors
• Includes on-chip oscillator eliminating the need for external crystals
• Features 1024-byte one-time programmable ROM for customizable product information
• Supports configurable I/O voltages from 1.8 V up to VDD via the VIO pin

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 F03 against the manufacturer's datasheet to confirm temperature range and packaging specifications. Ensure that the required VID/PID customization aligns with the available OTP memory capacity. Confirm compatibility with the intended operating system drivers, such as Virtual COM Port or USBXpress, prior to finalizing procurement.

Controllers Selection Notes

Select this component when a highly integrated solution is required to minimize bill of materials and PCB space. It is suitable for designs needing direct replacement of RS-232 level translators. Consider the 4x4 mm QFN-24 package constraints for thermal management and soldering profiles. Verify that the 17 mA typical supply current fits within the power budget of the target application.

Controllers Part Context

The CP2104 belongs to the Silicon Labs CP210x family of USB-to-UART bridge controllers. This series provides royalty-free drivers and supports various host operating systems including Windows, Mac OS-X, and Linux. The device simplifies design by integrating necessary USB components, reducing the complexity associated with discrete USB controller implementations.

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 the CP2102N versus the CP2104.