Measurement Computing CIO-PDMAxx - Manual (Page 25)

6.0 SPECIFICATIONS
Typical for 25°C unless otherwise specified.
Power Consumption
+5VDC
CIO-PDMA16 850 mA typical, 1.0 A max
CIO-PDMA32 900 mA typical, 1.1 A max
Digital Input / Output
Digital Type Auxiliary
Configuration Output
Number of channels 3
CIO-PDMA16 74LS273
Output High 2.7 volts min @
−
0.4 mA
Output Low 0.5 volts max @ 8 mA
Input High 2.0 volts min, 7 volts absolute max.
Input Low 0.8 volts max,
−
0.5 volts absolute min
CIO-PDMA32 74LS125
Output High 2.4 volts min @
−
2.6 mA
Output Low 0.5 volts max @ 24 mA
Input High 2.0 volts min, 7 volts absolute max
Input Low 0.8 volts max,
−
0.5 volts absolute min
Digital Type Ports A & B
CIO-PDMA16
Output 74LS374
Input 74LS244
CIO-PDMA32 74LS245
Number of channels 16 I/O
Output High 2.4 volts min @
−
2.6 mA
Output Low 0.5 volts max @ 24 mA
Input High 2.0 volts min, 7 volts absolute max
Input Low 0.8 volts max,
−
0.5 volts absolute min
Power-up / Reset State Input mode (high impedance)
Digital Pacing Programmable: internal counter, external
source (Transfer Req In) or software polled
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