The DM7820 provides 48 bits of high speed digital I/O. It interfaces with the 33MHz PCI bus and uses large FIFOs and DMA transfers to allow for efficient management of digital data. Several peripherals, such as Pulse Width Modulators, Incremental Encoders, Programmable Clocks, 82C54 Timer/Counters and Advanced Interrupt Modules are all on board. All 48 bits have an individually programmed direction and mask. The Advanced Interrupt Modules provide Match, Event, and Strobe interrupts which latch all 48 bits upon firing. Peripherals can be connected internally and a large selection of interrupts can be generated. This wide variety of configuration options allows for the realization of many complex digital I/O scenarios.

  • 48 Diode-protected digital I/O
  • 33MHz, 32-bit PCI-bus interface
  • Two 2M-Word FIFO buffers
  • 25MHz uni-directional or 12.5MHz bi-directional throughput
  • 8 PWM outputs with 16-bit resolution
  • Individual period and width clocks for PWM customization
  • 4 incremental encoders with 16-bit resolution
  • 6 programmable clocks
  • 6 82C54 timer/counters
  • 2 Advanced Interrupt Modules provide Match, Event, and Strobe interrupts
  • High level of customization via a multitude of interrupt and clock sources
  • Each bit has a separate direction and mask
  • Optional rugged IDAN® enclosure system

RTD is a founder of the PC/104 Consortium and an ISO 9001 and AS9100 certified company. RTD designs its products to withstand -40 to +85 C operating temperatures and severe shock and vibrations which are indispensable for the most demanding industrial, aerospace, transport, and military applications. From low power to high-end performance, RTD's product offering is the broadest in the industry. RTD specializes in the research, design, and manufacturing of PC/104, PC/104-Plus, PCI-104, PCIe/104 and PCI/104-Express compliant modules and systems, addressing intelligent process control, data acquisition and processing, adaptive signal processing, video capture, telematics, wireless, fieldbus, and power supply technologies. RTD's rugged packaging and system solutions include the IDAN®, HiDAN®, HiDANplus®, and FieldPad® and are available in standard and custom designs. Add in drivers, developed software environments, and example programs, RTD provides a clear one-stop, fast development experience with long lasting support for the embedded customer. All of RTD's products are manufactured in the U.S.A. at our facility and have seen use on every continent, in many oceans, at various levels of our atmosphere, and in space. A State of the art Automated Surface Mount Assembly System using X-Ray technology for inspection of BGA components along with Humidity Controlled Environmental Chambers highlights the effort taken to ensure a quality product.

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