Product Summary

The MCS9990CV-AA is a single lane multi-function PCIe to USB 2.0 host controller. The MCS9990CV-AA supports two modes of operation USB host mode and OTG mode, selectable through device mode select pins. The USB host mode supports four USB 2.0 ports. The OTG mode of MCS9990CV-AA supports two USB 2.0 host ports, one USB OTG port and a provision to select GPIO or ISA interface. The four USB 2.0 host ports are integrated with on‐chip transceivers and support an Enhanced Host Controller Interface (EHCI) and Open Host Controller Interface (OHCI).


MCS9990CV-AA absolute maximum ratings: (1)Power Supply requirement:1.2V for Core & 3.3V for IO’s; (2)On-chip Voltage regulator for 3.3V to 1.2V ; (3)Package : 128-Pin LQFP, RoHS ; (4)Operating Temperature : 0 to +85℃.


MCS9990CV-AA features: (1)fully compliant with PCI Express Base Specification; (2)support high speed 2.5 Gbps differential transmit and receive lines; (3)hot-swapping, allowing users to connect / disconnect devices without powering down the system; (4)supports simultaneous operation of multiple USB 2.0 and USB 1.1 devices; (5)possible for up to 127 devices per port.