Description
The PDIUSBD12 is a cost and feature optimized USB device. It is normally used in microcontroller based systems and communicates with the system microcontroller over the high-speed general purpose parallel interface. It also supports local DMA transfer.

FEATUREs
■ Complies with the Universal Serial Bus specification Rev. 2.0 (basic speed)
■ High performance USB interface device with integrated SIE, FIFO memory, transceiver and voltage regulator
■ Compliant with most Device Class specifications
■ High-speed (2 Mbytes/s) parallel interface to any external microcontroller or microprocessor
■ Fully autonomous DMA operation
■ Integrated 320 bytes of multi-configuration FIFO memory
■ Double buffering scheme for main endpoint increases throughput and eases real-time data transfer
■ Data transfer rates: 1 Mbytes/s achievable in Bulk mode, 1 Mbits/s achievable in Isochronous mode
■ Bus-powered capability with very good EMI performance
■ Controllable LazyClock output during suspend
■ Software controllable connection to the USB bus (SoftConnect™)
■ Good USB connection indicator that blinks with traffic (GoodLink™)
■ Programmable clock frequency output
■ Complies with the ACPI, OnNOW and USB power management requirements
■ Internal Power-on reset and low-voltage reset circuit
■ Available in SO28 and TSSOP28 pin packages
■ Full industrial grade operation from −40 to +85 °C
■ Higher than 8 kV in-circuit ESD protection lowers cost of extra components
■ Full-scan design with high fault coverage (>99%) ensures high quality
■ Operation with dual voltages: 3.3 ±0.3 V or extended 5 V supply range of 4.0 to 5.5 V
■ Multiple interrupt modes to facilitate both bulk and isochronous transfers.