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7Semi CP2102 USB to UART TTL Converter Communication Breakout Module
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The 7Semi CP2102 USB to UART TTL Converter Communication Breakout Module is a compact and efficient solution designed for reliable serial communication between computers and electronic devices such as microcontrollers, sensors, development boards, and embedded systems.
Powered by the high-performance CP2102 USB to UART bridge controller, this USB to TTL converter module seamlessly converts USB signals into TTL-level UART signals, making it perfect for programming, debugging, and data communication applications. Supporting USB 2.0 full-speed communication up to 12 Mbps and baud rates of up to 921600 bps, the module ensures stable and high-speed data transfer.
It also features integrated 128-byte transmit and receive buffers for improved communication efficiency. With its plug-and-play functionality, compact breakout design, and broad compatibility with platforms like Arduino and Raspberry Pi, this CP2102 UART communication module is an excellent choice for electronics enthusiasts, students, and IoT developers.
• Single-chip USB to UART data transfer.
• USB Function Controller
• Asynchronous Serial Data Bus (UART).
• Virtual COM Port Device Drivers
• Users can use a 500mA self-recovery fuse to protect their USB ports.
• Status LEDs: RX LED, TX LED, Power LED

| Pin | Description |
|---|---|
| 3V | 3.3V voltage regulator output pin for powering low-voltage devices. |
| 5V | USB 5V power output from the converter module. |
| TX | UART transmit pin used for asynchronous serial data output. |
| RX | UART receive pin used for asynchronous serial data input. |
| RTS | Ready To Send flow control output pin (active low). |
| CTS | Clear To Send flow control input pin (active low). |
| GND | Ground reference pin for circuit connection. |

| Specification | Value |
|---|---|
| Chip Used | CP2102 USB to UART Bridge Controller |
| Supply Voltage | 3.3V |
| Operational Temperature | –40°C to +70°C |
| Baud Rate | Up to 3 Mbps |
| Dimensions | 45mm × 15mm × 4.95mm |