USB to TTL Module with CP2102 Chip, UART Serial Port Adapter with Signal Isolation

Product parameter input voltage of :DC 3.3V ± 10%( no overvoltage of , regulated source power supply is required) communication interface : USB end: USB 2.0 full speed protocol (12Mbps) TTL end: UART asynchronous serial port (support hardware flow control) baud rate range of :300bps-921.6kbps (automatic detection rate) isolation strength : Signal isolation voltage: 2500V RMS (for 1 minute) Electrostatic protection: 15kV air discharge/8kV contact discharge (TXD/RXD pin) of power consumption characteristics of: Operating current:<15mA(USB power supply mode) Standby current: 0.5 μA (sleep mode) Level Compatibility :TTL logic level 3.3V( compatible with 5V equipment, 120Ω current limiting resistor in series) working temperature of :-40 ℃ to 85 ℃ (industrial wide temperature range) product main pin function USB side (host side): VBUS:USB power input (5V ± 0.25V, connected to computer USB port) D +/D-:USB data differential line (twisted pair wiring required, length <20cm) on TTL isolated side (equipment side): VCC_ISO: Isolated power output (3.3V ± 5%, maximum load 100mA) GND_ISO: Isolate reference ground (is prohibited from sharing ground with non-isolated side ground) TXD: serial data sending terminal (connected to RXD pin of MCU, 120Ω resistor in series) RXD: Serial data receiver (connected to the TXD pin of the MCU) CTS: Clear to send (input, low level allows to send) RTS: Request to send (output, low level request data)

• 【High-Performance USB to TTL Isolation Module】 This high-performance USB to TTL isolation module uses the original CP2102 chip and features a built-in signal isolation circuit with optocoupler and DC-DC power isolation. It can withstand up to 2500V RMS isolation voltage, making it Suitable for industrial applications like PLC upgrades, STC microcontroller programming, and medical equipment debugging.
• 【Advanced Signal Isolation & Protection】 With 2500V RMS isolation voltage and 15kV air discharge/8kV contact electrostatic protection, this USB to TTL converter ensures reliable performance in harsh s. The hardware flow control (CTS/RTS) and 9-wire full-function serial port help suppress loop interference and surge damage, enhancing system stability.
• 【Wide Operating Temperature & Compact Design】 Designed for industrial use, this USB to TTL module operates reliably from -40°C to 85°C. Its compact size of 25 × 12 × 5mm with an isolation groove design makes it easy to integrate into various systems, including embedded devices and automation setups.
• 【Flexible Communication Interface Options】 Supports both USB 2.0 full-speed (12Mbps) and UART asynchronous serial communication with baud rates ranging from 300bps to 921.6kbps. The module is compatible with 3.3V TTL logic levels and can work with 5V equipment using a 120Ω current-limiting resistor, offering versatile connectivity options.
• 【Low Power Consumption & Easy Setup】 With an operating current of less than 15mA and a standby current of only 0.5µA, this USB to TTL isolation module is energy-efficient. It supports Windows, Linux, and Mac OS drivers and includes a 512-byte EEPROM for custom device information (VID/PID, serial number), making it simple to configure and deploy.