Product Introduction CP2102 characteristics: 1. Single-chip USB to UART data converter No external resistor or oscillator required; on-chip power-on reset circuit and on-chip voltage regulator Integrated 1024-byte EEPROM (can be used to store various types of information) 2. USB function Compliant with USB2.0 specification, full speed (12Mbps) The SUSPEND pin supports the USB suspend state 3. UART function All handshake and modem interface signals Supported data formats: Data bits: 5, 6, 7, 8; Stop bits: 1, 1.5, 2; Parity bits: Odd parity, Even parity, No parity Baud rate ranging from 300bps to 1Mbps 576-byte receive buffer; 640-byte transmit buffer Support hardware or X-On/X-Off handshake Support event status 4. Virtual COM port device driver support Windows 8/7/Vista/Server 2003/XP/2000 MAC OS-X/OS-9 Linux 2.40 or later 5. USBXpress driver support Windows 7/Vista/Server 2003/XP/2000 Windows CE 6. Temperature range -40 to +85 degrees Product Features: Ø Supports Mac, Linux, Android, WinCE, Windows 7/8/8.1/10/11 Ø Support external power supply: 5V or 3.3V Ø With USB protection device: SP0503 Ø With 3 LEDs: TXD LED, RXD LED, POWER LED Ø TXD, RXD, RTS, CTS: are led out using bent pin headers Ø Other functional PINs: reserved solder pads, which can be plugged in from above or below to connect to the user's system (pin headers and pin sockets are provided; the PIN spacing supports insertion into universal boards) Ø Instructions for use: (taking the access to MCU as an example) Ø VCCIO: Output 3.3V or 5V (The module is powered by USB, and the jumper cap must be set to 3.3V or 5V) Ø GND: Connect to GND Ø TXD: connected to MCU.RX (signal flow: MCU.RX CP2102 >> PC.RX) Ø RTS: connected to MCU.CTS (signal flow: MCU.CTS CP2102 >> PC.CTS) Ø Note: This module converts USB to TTL level. Do not directly connect it to RS232 level to avoid burning out the module. Ø [Special Note: We provide development examples for VCP (Virtual Serial Port) and the driver library for USBXpress, but do not offer technical support for USBXpress.] Schematic diagram