Description
The CP2102-GMR is a highly integrated USB-to-UART bridge controller that provides a simple and cost-effective solution for upgrading legacy serial-port-based devices to USB. By handling the complex USB 2.0 full-speed function controller, USB transceiver, and internal oscillators on-chip, it allows developers to add USB connectivity to embedded systems without needing extensive USB protocol knowledge.
This controller features a built-in EEPROM for storing vendor IDs and product IDs, and it supports a wide range of baud rates, making it highly versatile for various serial communication needs. It is widely recognized for its driver compatibility with Windows, Mac, and Linux, ensuring that once implemented, it appears as a standard Virtual COM Port (VCP) on the host computer. The device is housed in a compact QFN-28 package, making it perfect for space-constrained designs such as handheld instruments, dongles, and small development boards.
Note: Product images are for reference only. The actual product may vary in appearance or manufacturer marking depending on stock availability. Please refer to the datasheet available in the Attachment section for complete electrical characteristics and application circuits.
Features
- Single-chip USB-to-UART data transfer
- Integrated USB 2.0 transceiver (no external resistors required)
- Internal clock generator (no external crystal required)
- Integrated 1024-byte EEPROM for vendor/product information
- Supports baud rates from 300 bps up to 1 Mbps
- Hardware or X-On/X-Off handshaking supported
- Supports Windows, Mac OS X, and Linux operating systems
- Compact QFN-28 (5×5 mm) surface mount package
Benefits
- Eliminates the need for complex USB firmware development
- Reduces board space and Bill of Materials (BOM) cost
- Wide driver support ensures plug-and-play capability
- High performance for reliable serial communication
- Ideal for migrating existing serial designs to modern USB standards
Applications
- USB-to-RS232/RS422/RS485 Adapters
- Upgrading Legacy Serial Peripherals
- Handheld Industrial Instruments
- Embedded System Debugging/Programming
- GPS and Sensor Data Loggers
- USB-based Home Automation Controllers
Package Includes
- 1 x CP2102-GMR USB to UART Bridge Controller IC (QFN-28)
Specifications
| Parameter | Specification |
|---|---|
| Product Name | CP2102-GMR |
| Device Type | USB to UART Bridge |
| USB Protocol | USB 2.0 Full Speed |
| Baud Rate Support | 300 bps to 1 Mbps |
| Interface | UART (TX, RX, RTS, CTS, DTR, DSR, etc.) |
| Package / Case | QFN-28 |
| Mounting Type | Surface Mount (SMD) |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 × 4 × 1 cm |
