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. This modular approach to implementing a USB interface allows the designer to choose the optimum system microcontroller from the available wide variety. This flexibility cuts down the development time, risks, and costs by allowing the use of the existing architecture and minimize firmware investments. This results in the fastest way to develop the most cost effective USB peripheral solution. The PDIUSBD12 fully conforms to the USB specification Rev. 2.0 (basic speed). It is also designed to be compliant with most device class specifications: Imaging Class, Mass Storage Devices, Communication Devices, Printing Devices, and Human Interface Devices. As such, the PDIUSBD12 is ideally suited for many peripherals like Printer, Scanner, External Mass Storage (Zip Drive), Digital Still Camera, etc. It offers an immediate cost reduction for applications that currently use SCSI implementations. The PDIUSBD12 low suspend power consumption along with the LazyClock output allows for easy implementation of equipment that is compliant to the ACPI™, OnNOW™, and USB power management requirements. The low operating power allows the implementation o...
The PDIUSBD12 is a high-performance USB interface device designed for microcontroller-based systems. It fully conforms to the USB specification Rev. 1.1 and supports compliance with various device class specifications, including Imaging, Mass Storage, Communication, Printing, and Human Interface Devices. The device is ideally suited for peripherals such as printers, scanners, external mass storage, and digital still cameras.
Key features include a high-speed (2 Mbytes/s) parallel interface to external microcontrollers, fully autonomous DMA operation, and integrated 320 bytes of multi-configuration FIFO memory. The chip incorporates an integrated transceiver, voltage regulator, and a 6 MHz to 48 MHz clock multiplier PLL, allowing for the use of a low-cost 6 MHz crystal. It also features SoftConnect and GoodLink technologies for simplified connection management and status indication.
| USB Specification | USB specification Rev. 1.1 |
|---|---|
| Data Transfer Rate | 2 Mbytes/s |
| FIFO Memory | 320 bytes |
| Operating Temperature | -40 to +85 °C |
| Supply Voltage | 3.3 V or 5 V |
| Package Types | SO28 and TSSOP28 |
| ESD Protection | > 8 kV |
The PDIUSBD12 fully conforms to the USB specification Rev. 1.1.
Yes, it offers fully autonomous DMA operation.
The device supports full industrial grade operation from -40 to +85 °C.