High-Density Digital I/O Module for PC/104 Bus

DIO96-104 DIO96-104 block diagram

  • Stock Number:

  • 100-7618

  • Budgetary Pricing:

  • $148.00 / 001 - 009
  • $142.08 / 010 - 024
  • $136.40 / 025 - 049
  • $131.05 / 050 - 099
  • Contact us for More Quantity Discounts

  • Typical Lead-Time:

  • Stock - 2wks

  • get quote


The DIO96-104 is an 8-bit PC/104 peripheral providing 96 TTL/CMOS compatible digital Input/Output channels. It conforms to the PC/104 standard and operates on a single +5V power supply.

The channels are organized as four 24-bit groups. Each group is controlled by a separate 82C55A peripheral interface chip which further segments its 24 channels into three 8-bit ports. This industry standard device offers very flexible configuration including software programmable port directions and strobed handshaking.

Groups are routed to corresponding 26-position I/O headers for all external wiring. Connections to the hosts +5V and GND are also available for convenient powering of external circuitry.

During system reset all channels default to a high impedance input state. Pull-up and pull-down resistors are absent allowing the user's circuitry to dictate how each channel will be handled during reset and input modes.

The DIO96-104 occupies 16 consecutive byte locations within the hosts I/O space. The starting address is jumper selectable between 0x000 through 0x3f0.


  • 96 digital Input/Output channels
  • Uses industry standard 82C55A chips
  • Supports input, output and strobed operations
  • Low-Power CMOS Design
  • Single +5 Volt Power Requirement



Digital I/O
General:96 non-isolated digital I/O channels arranged as four 24-bit groups with each group consisting of three 8-bit ports. Each group is controlled by a separate 82C55A peripheral interface chip and supports operating modes 0, 1, and 2. Interrupts are not supported.
Input Level:Low: -0.5Vdc minimum, 0.8Vdc maximum
High: 2.0Vdc minimum, 5.5Vdc maximum
Output Level:Low: 0.0Vdc minimum, 0.4Vdc maximum
High: 3.0Vdc minimum, Vcc - 0.4Vdc maximum
Current: ±2.5mA maximum per channel
I/O Connections: Four 26-Position IDC type headers, one I/O group per header includes access to Hosts +5V and GND
Addressing:8-bit PC/104 bus. Occupies any consecutive 16-byte block in host's I/O map, jumper selectable between 0x000 through 0x3f0
Power Requirement:+5Vdc ±10% @ 7mA typical, external circuitry excluded
Dimensions:PC/104 compliant, 3.550"W x 3.775"L 8-bit stack-through, 16-bit stack-through compatible with optional J2/P2 connector
Environmental:Operating temperature: 0°C to 70°C Standard. Extended temperature version available
Non-condensing relative humidity: 5% to 95%
CA Residents: Warning - Prop 65 Info
Product Origin:Designed, Engineered, and Assembled in U.S.A. by SCIDYNE Corporation using domestic and foreign components.

You may also be interested in these products