FT122Q

Document No.: FT_000647 FT122 ENHANCED USB DEVICE CONTROLLER WITH PARALLEL BUS IC Datasheet Version 1.1 Clearance No.: FTDI# 313 Future Technology Devices International Ltd. FT122 (Enhanced USB Device Controller with Parallel Bus IC) The FT122 is a USB generic interface controller with the following advanced  features:   USB 2.0 Full Speed compatible   High performance USB device controller with integrated SIE, endpoint buffer, transceiver and voltage regulators   Fully integrated clock generation with no external crystal required   Supports 8-bit parallel interface to external microcontroller   Supports DMA operation   Supports up to 8 bi-directional endpoints with total 2K bytes endpoint buffer   Max packet size is 504 bytes for isochronous  endpoint and 64 bytes for control/bulk/ interrupt endpoint   Double buffer scheme for any endpoint  increases data transfer throughput Dedicated clock output pin wi...