Introduce several USB-to-serial-port chips used by myself

1. ft232rl ftdi products. Currently, the market should be the most stable and compatible

IC, the peripheral is very simple, you can set different output levels. But the price is also compared

Expensive. I have used it as a small-batch communication tool. There was a problem with the first version. Long Term

Communication will stop without reason, and then contact the supplier to change the PCB.

The USB port housing is grounded to eliminate bugs. It is currently running well.

Manual address:

Http://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT232R.pdf
XP driver
Http://www.ftdichip.com/Drivers/CDM/Beta/CDM20817.zip
2. The product of/ch341 Nanjing qinheng is widely used in the market with low prices,

The peripheral is simple because it is used for ISP download of the STC series microcontroller. Make a small

Board. It carries a piece of stc12c4052 and is used as a USB port remote control.
Manual address:
Http://winchiphead.com/download/CH340/CH340DS1.PDF
Driver:
Http://winchiphead.com/download/CH341/CH341SER.ZIP
3. pl2303hx. The most common chip, many of which are on the market. Use

Yes, but it is not good for the ISP support of STC. You can use a certain version of the driver, except for 89 series.

Columns are not supported by other series.
You can download the address of the stc89 series driver:
Http://esoft.mcu123.com/MCU123_temp_20100103@/driver/PL-2303HX.zip