Product Summary

The CH340T is a USB bus convert chip and it can realize USB convert to serial interface, USB convert to IrDA infrared or USB convert to printer interface. In serial interface mode, the CH340T supplies common MODEM liaison signal, used to enlarge asynchronous serial interface of computer or upgrade the common serial device to USB bus directly.

Parametrics

CH340T absolute maximum rating: (1)TA Ambient operating temperature: -40 to 85 ℃; (2)TS Storage temperature: -55 to 125 ℃; (3)VCC Voltage source (VCC connects to power, GND to ground): -0.5 to 6.5 V; (4)VIO The voltage of input or output pin: -0.5 to VCC+0.5 V.

Features

CH340T features: (1)Through adding level converter equipment to supply RS232, RS485, RS422 and other interface; (2)Supports IrDA criterion SIR infrared communication, supports baud rate varies from 2400bps to 115200bps; (3)For it is through USB converts to serial interface, only compatible with application layer not totally; (4)Software compatible with CH341, using drive of CH341 directly; (5)Support 5V and 3.3V source voltage; (6)Supply SSOP-20 package without lead, compatible with RoHS.

Diagrams

CH340T diagram

CH341
CH341
Other

Data Sheet
Negotiable