USB UART (TTL) Converter CP2102 - USB-C Connector
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USB UART (TTL) Converter CP2102 - USB-C Connector
A USB to UART (TTL) communication module based on the reliable CP2102 chip. Equipped with a USB-C connector, built-in protection, and status LEDs, it is a universal tool for programming and communication with microcontrollers such as Arduino, ESP32, or STM32. The module is compatible with both 3.3V and 5V logic levels.
Key Features:
- Operating System Support: Mac OS, Linux, Android, WinCE, Windows 7/8/10/11
- Output Voltage Selection: 5V or 3.3V via jumper
- Integrated USB Port Protection: SP0503 chip
- 3 LED Indicators: TXD, RXD, POWER
- Pins brought out on goldpin connector: TXD, RXD, RTS, CTS
- Other pins available on through-holes, facilitating integration with custom systems
CP2102 Chip Specification
Single-Chip USB to UART Data Transfer
- No external resistors or crystal required
- Built-in reset circuit and voltage regulator
- Integrated 1024-byte EEPROM memory
USB Function Controller
- Compliant with USB 2.0 specification (full-speed 12 Mbps)
- Supports USB suspend state via SUSPEND pins
UART Specification
- All handshake and modem interface signals
- Data formats: Data bits (5, 6, 7, 8), Stop bits (1, 1.5, 2), Parity (odd, even, none)
- Baud rates: 300 bps to 1 Mbps
- 576-byte receive buffer; 640-byte transmit buffer
Virtual COM Port Drivers
- Wide support for Windows, MAC OS, and Linux systems
Board and Pinout Description
Hardware Connection
Example connection to a microcontroller:
- VCCIO: 3.3V or 5V Output (powered from USB, selected by jumper)
- GND: Connect to ground (GND)
- TXD: Connect to microcontroller RX (MCU.RX << CP2102)
- RXD: Connect to microcontroller TX (MCU.TX >> CP2102)
- RTS: Connect to microcontroller CTS (MCU.CTS << CP2102)
- CTS: Connect to microcontroller RTS (MCU.RTS >> CP2102)
NOTE: The module is ONLY compatible with TTL logic level. To avoid damage, do not connect it directly to RS232 circuits.
Dimensions
Technical Specification:
- Chip: CP2102
- Host Interface: USB-C
- Device Interface: UART (TTL)
- Operating Voltage: 5V (from USB port)
- Logic Voltage: 3.3V / 5V (selected by jumper)
- Baud Rate: 300 bps ~ 1 Mbps
- Protection: SP0503 Chip
- LED Indicators: TXD, RXD, POWER
- Connector: USB-C
- Operating Temperature Range: -40°C to +85°C
- Weight: 0.011 kg
Package Contents
- CP2102 USB UART Board (Type C) module x1
- 6-pin connecting wire x1
- Male 4-pin and female 4-pin goldpin connector x2
Wiki: CP2102_USB_UART_Board_(Type_C)
Safety
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