Overview
The CP2104-F03-GM, produced by Silicon Labs, is a highly integrated USB-to-UART Bridge Controller designed to provide a simple and efficient solution for updating legacy RS-232/RS-485 designs to USB. This single-chip solution integrates a USB transceiver, clock, and voltage regulator, eliminating the need for external components such as resistors and crystals. The device supports USB 2.0 full-speed operation at 12 Mbps and is compatible with various operating systems including Windows, Mac OS-X, and Linux. It also features a 1024-byte one-time programmable ROM for customizable product information and up to four GPIO signals for user-defined status and control functions.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | 24-pin QFN (4x4 mm) |
| Supply Voltage | Self-powered: 3.0 to 3.6 V, USB bus powered: 4.0 to 5.25 V |
| I/O Voltage | 1.8 V to VDD |
| Temperature Range | –40 to +85 °C |
| USB Specification | USB 2.0 compliant, full-speed (12 Mbps) |
| UART Interface | All handshaking and modem interface signals, data rates up to 2 Mb/s |
| Digital I/O Pins | 4 GPIO signals |
| ROM | 1024-byte one-time programmable ROM |
Key Features
- Integrated USB transceiver and clock, eliminating the need for external resistors and crystals.
- Integrated 1024-byte one-time programmable ROM for customizable product information such as USB Vendor ID, Product ID, and Product Description String.
- On-chip power-on reset circuit and voltage regulator with a 3.45 V output.
- Support for USB Suspend states via SUSPEND and SUSPEND pins.
- All handshaking and modem interface signals supported in the UART interface.
- Up to four GPIO signals that can be user-defined for status and control information.
- Support for I/O interface voltages down to 1.8 V via the VIO pin.
- Royalty-free Virtual COM Port (VCP) device drivers provided by Silicon Labs.
Applications
- Upgrade of RS-232 legacy devices to USB.
- Upgrade of RS-485 legacy devices to USB.
- Cellular phone USB interface cable.
- PDA USB interface cable.
- USB to RS-232 serial adapter.
Q & A
- What is the primary function of the CP2104-F03-GM?
The CP2104-F03-GM is a USB-to-UART Bridge Controller, designed to convert UART signals to USB and vice versa.
- What are the supported supply voltage ranges for the CP2104-F03-GM?
The device can be self-powered with a voltage range of 3.0 to 3.6 V or USB bus powered with a range of 4.0 to 5.25 V.
- What is the maximum data rate supported by the CP2104-F03-GM?
The device supports data rates up to 2 Mb/s in the UART interface and 12 Mbps in USB mode.
- Does the CP2104-F03-GM support GPIO signals?
Yes, it supports up to four GPIO signals that can be user-defined for status and control information.
- What operating systems are compatible with the CP2104-F03-GM?
The device is compatible with Windows, Mac OS-X, and Linux operating systems.
- What is the purpose of the integrated 1024-byte one-time programmable ROM?
The ROM allows for customizable product information such as USB Vendor ID, Product ID, and Product Description String).
- How does the CP2104-F03-GM handle USB Suspend states?
The device supports USB Suspend states via SUSPEND and SUSPEND pins).
- What is the temperature range for the CP2104-F03-GM?
The device operates within a temperature range of –40 to +85 °C).
- Is the CP2104-F03-GM RoHS compliant?
Yes, the device is RoHS compliant and comes in a 24-pin QFN package).
- What kind of drivers are provided for the CP2104-F03-GM?
Royalty-free Virtual COM Port (VCP) device drivers are provided by Silicon Labs).
