This chip has a royalty free distrabution licence. General purpose IO for example it could control my boards SPI programmable resistors from the PC without using my microcontroler. 8-) :o
It also might be cheeper.
I also could use some fast SPI A/d converters that could be triggered to take the samples at the same time. So then where the signal came from could be triangulated.
Basic breakout board for the new Silicon Laboratories' CP2103 USB to Serial IC. The CP2103 is superior to the FTDI chip in many ways:
* Implements full v2.0 USB protocol
* Needs no external crystal
* Internal EEPROM for device ID and Product Description strings
* 4 independently controllable GPIOs