USB Serial Software Development Kit Cypress Semiconductor. Corporate Headquarters. Cypress Semiconductor Corp. Champion Court. San Jose, CA 9. USATel 1 4. 08 9. Customer Service Support1 8. Hours 8 0. 0AM 5 0. PM local timeCreate a My. Case. International Support1 4. United States 1 8. Hours 4 3. 0AM 1 3. PM pacific time7 3. PM 4 3. 0AM standard time. Controller Usb Universal Serial Bus Driver Windows 7 Download' title='Controller Usb Universal Serial Bus Driver Windows 7 Download' />USB Driver Installation Instructions. For use only with CH Instruments hardware. If you are not installing a CH Instruments potentiostat, please contact the. PL2303RA provides a convenient solution for connecting an RS232 fullduplex asynchronous serial device to any Universal Serial Bus USB capable host. International Airline Program Amex Canada.