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Updated at 16/05/2025 10:30:15(UTC+8)
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Description
- System Overview
- The CP2103 is a highly-integrated USB-to-UART Bridge Controller providing a simple solution for updating RS-232/RS-485 designs to USB using a minimum of components and PCB space. The CP2103 includes a USB 2.0 full-speed function controller, USB transceiver, oscillator, EEPROM, and asynchronous serial data bus (UART) with full modem control signals in a compact 5 x 5 mm QFN-28 package (sometimes called “MLF” or “MLP”). No other external USB components are required.
- The on-chip EEPROM may be used to customize the USB Vendor ID, Product ID, Product Description String, Power Descriptor, Device Release Number, and Device Serial Number as desired for OEM applications. The EEPROM is programmed on-board via the USB allowing the programming step to be easilyintegratedinto the product manufacturing and testing process.
- Royalty-free Virtual COM Port (VCP) device drivers provided by Silicon Laboratories allow a CP2103-based product to appear as a COM port to PC applications. The CP2103 UART interface implements all RS-232/RS-485 signals, including control and handshaking signals, so existing system firmware does not need to be modified. The device also features up to (4) GPIO signals that can be user-defined for status and control information. Support for I/O interface voltages down to 1.8 V is provided via a VIOpin. In many existing RS-232designs, all that is required
- to update the design from RS-232 toUSB is to replace the RS-232 level-translator with the CP2103. Direct access driver support is available through the Silicon Laboratories USBXpress driver set. See www.silabs.comfor the latest application notes and product support information for CP2103.
- An evaluation kit for the CP2103 (Part Number: CP2103EK) is available. It includes a CP2103-based USB-to UART/RS-232 evaluation board, a complete set of VCP device drivers, USB and RS-232 cables, and full documentation. Contact a Silicon Labs’ sales representatives or go to www.silabs.comto order the CP2103 Evaluation Kit.
CP2103 Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Show | |
| RoHS | Non-Compliant |
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