CH340 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, CH340 supplies common MODEM liaison signal, used to enlarge
asynchronous serial interface of computer or up..
The FT232BM is the 2nd generation of FTDI's popular USB UART device and the FT232BL is a lead free version of it. The FT232BQ provides the same functionality as the FT232BM and FT232BL in a QFN-32 lead free package.
FT232BM Data Sheet..
The FT232R is the latest device to be added to FTDI’s range of USB UART interface Integrated Circuit Devices. The FT232R is a USB to serial UART interface with optional clock generator output, and the new FTDIChip-ID™ security dongle feature. In addition, asynchronous and synch..
The MAX220–MAX249 family of line drivers/receivers is intended for all EIA/TIA-232E and V.28/V.24 communications interfaces, particularly applications where ±12V is not available.
These parts are especially useful in battery-powered systems, since their low-power shutd..
The MAX481, MAX483, MAX485, MAX487-MAX491, and MAX1487 are low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX483, MAX487, MAX488, and MAX489 feature reduced slew-rate drivers that minimize EMI and reduce reflections caused..
The PL-2303HX is a low cost and high performance USB-to-Serial Bridge Controller. The PL-2303HX provides a convenient solution for connecting an RS-232 full-duplex asynchronous serial device to any Universal Serial Bus (USB) capable host. The PL-2303HX highly compatible drivers could simulate the tr..
This is USB to serial module based on the CH340G. It is commonly used to debug various TTL serial devices, upgrade the firmware of routers, It's a small USB to TTL serial tool, using the CH340G chip. You can use it to connect some serial device to your PC via USB port.