ds_pl2507_v13

· Universal Serial Bus Specification 2.0 Compliant
· USB Mass Storage Class Bulk-Only Transport Specification Compliant
· AT Attachment with Packet Interface Extension (ATA/ATAPI-7) Compliant
· ATA interface support PIO mode 0~4, Multiword DMA mode 0~2, and Ultra-DMA mode 0~6 to work with ATA/ATAPI devices
· Integrated the full speed and high speed transceiver
· 5 V tolerant inputs, 3.3 V output drive
· Sufficient 4K bytes data buffer for both the downstream and upstream data transfer in optimized performance
· Support external serial EEPROM to customize vender/product related information
· Support multiple LUN (optional)
· Addition General Purpose IO pins for further customization
· On-chip 3.3v to 2.5v regulator to supply the power of 0.25 process core circuit
· Inexpensive LQ64 packaging available

The PL-2507 is a single chip USB2.0-IDE bridge controller, which is designed to perform a seamless protocol transfer between the USB and ATA interface.   
 
PL-2507 will work with full function at full speed or high speed USB transfer mode. The operating speed mode is determined by the capability of the host/hub it connected to. The PIO mode 0 to mode 4, Multi Word DMA mode 0 to mode 2, and Ultra DMA mode 0 to mode 6 are implemented to support difference IDE devices. The PL-2507 will negotiate with connected device to select the proper mode to obtain the best performance. 
 
The PL-2507 is implemented according to the USB Bulk-Only Mass Storage Class specification ver1.0. While the driver is default supported by most the OS so that no additional driver is needed for the bridge function.