USB TO TTL, support 5V/ 3.3V / 2.5V / 1.8V four level switching, adapting to different voltage system, using a dip switch to select the voltage, without power failure operation. ^^ USB port with electrostatic protection and current protection. Signal interface RX, TX, CTS, RTS port with current protection and ESD protection. ^^
Baud rate support range: CH 340: 50 bps ~ 2M bps; FT 232: 300 bps ~ 3Mbps; CP 2102: 300 bps ~ 1M bps ^^ Pin out CTS, RTS signal pins, FT232, CP2102 version additional pin out DTR, DSR, DCT pins, can be convenient for hardware flow control. ^^ Adopt chip conversion program, non-transistor program, the low level is 0V (transistor program due to the conduction voltage drop, the low level can not reach 0V)