Low Profile PCI 24 Channel TTL Digital Interface

Part: 8018   Model: PIO-24.LPCI

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The 8018 Low Profile PCI digital I/O interface provides 24 channels of buffered drive digital I/O emulating 8255 mode zero. The board can be utilized for PC-based control and automation of equipment including sensors, switches, security control systems, and other industrial automation systems. 10K pull-up resistors are included and optional values are available.

The 8018 contains three groups of eight-bit I/O ports. Each group is individually configurable as input or output to suit the automation task. The board is MD1 Low Profile and Universal Bus (3.3V and 5V) compatible and ships with a ribbon cable terminating in an industry-standard 50-pin IDC connector.

The 8018 is for use in Low Profile PCI slots only. If you have a standard size PCI slot, order the 8018S.

Sealevel’s SeaIO Classic software drivers and utilities make installation and operation easy using Windows and Linux operating systems.

Get a jump start on your digital I/O development with The Digital I/O Handbook that will provide helpful information that you will use again and again. Check out Chapter 1 for an overview of logic principles.


Additional information

Board Connector

50-Pin Header

Digital I/O


Extended Temperature

Call for Options

Humidity Range

10 – 90% Relative Humidity, Non-Condensing

Host Interface(s)


Number of Inputs/Outputs

24 (TTL)

Operating Temperature

0°C to 70°C (32°F to 158°F)

Output Specification

Sink up to 24mA, Source up to 15mA

PC Bracket

Low Profile

# of Ports


Power Requirement

+5V @ 1A

RoHS Compliant


Storage Temperature

-50°C to 105°C (-58°F to 221°F)

  • Compliant with RoHS and WEEE directives
  • 24 channels of buffered TTL I/O
  • Each 8-bit port individually configurable as input or output
  • 8255 mode 0 compatible
  • 10K pull up resistors on each bit
  • +5V power and ground provided on connector
  • MD1 Low Profile and Universal Bus (3.3V and 5V) compatible
  • Includes a 40 inch ribbon cable with (2) 26-pin IDC connectors to an industry-standard 50-pin IDC connector (Item# CA315)
  • SeaIO Classic software supports Microsoft Windows operating systems
  • Software support for Linux available


Datasheet: 8018


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