The 2-wire synchronous serial port supports address recognition of multiple devices, reads and writes data by means of data stream, and supports reading and writing large data blocks at one time.
The two-wire serial port of the CH341 supports 20KHz/100KHz/400KHz/750KHz speed. When connecting with a device with a hardware two-wire serial port, you can select a higher speed. When connecting with a software analog two-wire serial port, you can only select a lower speed. (eg 20KHz).
The resistor R4 is used to force the ACT# pin to be low during the CH341 function configuration. This prevents the CH341 from accessing the 2-wire synchronous serial port and affecting other devices on the bus. If the LED display is not required, the resistor R3 can be omitted. And the light pipe L2, and the R4 can be connected to the RST# terminal to be connected to GND.
Antenk MICRO USB :Micro USB is a miniaturized version of the Universal Serial Bus (USB) interface developed for connecting compact and mobile devices such as smartphones, MP3 players, GPS devices, photo printers and digital cameras.
Micro USB connectors exist or have existed in three forms: micro A, micro B and micro USB 3. USB 3 micro is much like micro B, but with an additional pin group on the side for twice the wires, enabling USB 3's greater speed. Like standard USB, the micro versions are plug-and-play and hot-swappable.
Micro Usb2.0 B Female,Micro Usb SMT Dip,Usb SMT Dip with Flange,Micro Usb B Female SMT Dip
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