OXU121HP

      OXU121HP has 16 festures.The first one is about singlechip USB OTG fullspeed host and highspeed peripheral controller. The second one is that it is compatible with the Universal Serial Bus Specification, Revision 2.0 and the OnTheGo Supplement to the USB Specification 2.0,Revision 1.0.The third one is about single 3.3 V power supply, flexible I/O voltage of 1.65 V to 3.6 V(LVCMOS/TTL) to interface to a wide range of MCUs.The fourth one is about Low power operation, suitable for mobile applications.The fifth one is about Power saving mode for the host controller and suspend mode forperipheral controller.The sixth one is that it is integrated onchip charge pump and it supports up to 100 mA of current and enables support for broad range of USB devices.The seventh one is about Small package and footprint saves board space because it is only 7*7 mm BGA, 84ball, RoHS compliant and 12*12 mm LQFP, 10 pin, RoHS compliant The eighth one is that 16bit memory mapped interface can gluelessly interface to most popular microprocessors and DSPs.The ninth one is about Fast microprocessor access cycle and double/multi buffering support for all four types of USB transfers.The tenth one is that it owns two DMA (slave) channels for the highspeed peripheral controller, lowering CPU utilization.The eleventh one is that integrated PLL supports external crystal or crystal oscillators of 12 MHz and 30 MHz, for system flexibility.The twelfth one is about 16 Kbytes of onchip SRAM, optimized buffer size for performance/cost.The thirteenth one is that it allows up to 8 bidirectional endpoints and transfers for support of multifunction systems.The fourteenth one is about configurable hardware Host Negotiation Protocol (HNP) and Session Request Protocol (SRP).The fifteenth one is that transaction scheduling and transfer level protocol implemented in hardware (including data toggle, retry and bandwidth management) for high performance.
The last one is about operating temperature range is from40 to 85 .
      The Oxford Semiconductor OXU121HP (formerly TD1120) is a singlechip USB OnTheGo (OTG) controller.It enables an embedded system to operate as a USB host and a peripheral simultaneously.The combination of the OXU121HP highspeed peripheral and fullspeed host controller enables users to perform highspeed USB data transfer for peripheral connectivity.It enables high-speed PC synchronization to reduce data file transfer time when operating in USB peripheral mode. In host mode, it enables the system to connect to a wide range of USB devices such as flash drives, keyboards, mice, and digital still cameras (DSC).So OXU121HP is ideal for mobile applications.Of couse ,it is well suited for PictBridge printers.