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PEX-D24 PCI Express Digital I/O Board, 24-ch Buffered TTL DIO

Información sobre el producto "PEX-D24 PCI Express Digital I/O Board, 24-ch Buffered TTL DIO"

The PEX-D24 is a PCI Express x1 digital I/O board providing 24 buffered TTL input/output lines. The lines are organised as three 8-bit bidirectional ports, and the board emulates two industrial-standard 8255 PPI ports in Mode 0, so existing 8255-style programming carries over.

It is designed as a direct replacement for the PIO-D24 and PIO-D24U series, requiring no changes to software or drivers. Input/output response is approximately 2 μs (500 kHz maximum), and the digital outputs offer higher driving capability, with sink of 64 mA at 0.8 V and source of 32 mA at 2.0 V.

A 4-bit Card ID, set by an SMD switch, lets software identify each board when two or more are installed in the same computer. Four interrupt sources are also provided for event-driven designs.

Applications

  • Upgrading existing PIO-D24 or PIO-D24U installations to PCI Express
  • Digital I/O on PCs where several DAQ boards must be told apart in software
Product type: Digital I/O board
Interface: PCI Express x1
Digital inputs: 24
Digital outputs: 24
Ports: 3 x 8-bit
Power input: 650 mA @ +3.3 V
Operating temperature: 0 ~ +60 °C

Specifications

Hardware
ConnectorFemale DB37 x 1
Card IDYes (4-bit)
Digital Input
Channels24 (Bi-Direction)
Type5 V/TTL
ON Voltage Level2.0 V Min.
OFF Voltage Level0.8 V Max.
Response Speed500 kHz (Typical)
Trigger ModeStatic Update
Digital Output
Channels24 (Bi-Direction)
Type5 V/TTL
Operation ModeStatic Update
Load VoltageLogic 0: 0.4 V Max.
Logic 1: 2.4 V Min.
Load CurrentSink: 64 mA @ 0.8 V
Source: 32 mA @ 2.0 V
Response Speed500 kHz (Typical)
PC Bus
TypePCI Express x 1
Data Bus8-bit
Power
Consumption650 mA @ +3.3 V
0 mA @ +12 V
Mechanical
Dimensions (mm)86 x 134 x 22 (W x L x D)
Environment
Operating Temperature0 ~ +60°C
Storage Temperature-20 ~ +70°C
Humidity5 ~ 85% RH, Non-condensing

Specifications as published by the manufacturer. Subject to change.

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