* Single chip USB to asynchronous serial data
* transfer interface.
* Entire USB protocol handled on the chip. No
* USB specific firmware programming r.

* USB to RS232/RS422/RS485 Converters
* Upgrading Legacy Peripherals to USB
* Cellular and Cordless Phone US.

Since 2006. D4U Semicon.   |   Contact Us   |   Privacy Policy   |   Purchase of parts