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CH340 USB to TTL Serial UART Module
The CH340 USB to TTL Serial UART Module is a value-for-money usb interface module designed for everyday users. It features Item Type: USB to Serial/TTL UART Module and Model No. / Name: CH340.
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About This Product
The CH340 USB to TTL Serial UART Module is a value-for-money usb interface module designed for everyday users. It delivers reliable performance at an accessible price.
Key Specifications
- Item Type: USB to Serial/TTL UART Module
- Model No. / Name: CH340
- Input Voltage (V): 3.3 to 5 — works with standard household power
- Output Voltage: 05 — works with standard household power
- Input signal: 3.3V TTL
- Interface: GND, D+, D-, VCC(Pin) — compatible with modern devices
- Length (mm): 25
- Width (mm): 15
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TheCH340 USB to TTL Serial UART Module is a compact, high-performance communication bridge that enables seamless serial data exchange between USB-enabled systems and TTL devices. Built with a durable black immersion gold PCB measuring just 14.86mm by 11.5mm, it features the latest CH340 chip, ensuring universal compatibility with all modern operating systems. Designed with convenient I/O pinouts—GND, TX, RX, VCC—it supports input power from 3.3V to 5V, with a default 5V output. For 3.3V output, a simple resistor swap is all it takes. It outputs at a safe 3.3V logic level, perfect for microcontrollers, sensors, and embedded applications.
Features:
- CH340 chip: stable, modern OS support
- 3.3V–5V input, default 5V output
- Easily switch to 3.3V output via resistor
- 3.3V logic level signal compatible
- Includes standard I/O: GND, TX, RX, VCC, D+, D-
