Appendix A Specifications - National Instruments 653 Series User Manual

Specifications
Digital I/O
© National Instruments Corporation
This appendix lists features and specifications for the NI 653X devices and
the NI PCI/PXI-7030/6533. Specifications are typical at 25 °C unless
otherwise noted.
Number of channels ............................... 32 input/output;
Compatibility ......................................... TTL/CMOS (standard or
Hysteresis ............................................... 500 mV
Digital logic levels
Level
Input low voltage
Input high voltage
Input low current for data lines
(V = 0.4 V)
in
DPULL high
DPULL low
Input high current for data lines
(V = 2.4 V)
in
DPULL high
DPULL low
Input low current for control lines
(V = 0.4 V)
in
CPULL high
CPULL low
4 dedicated output and control;
4 dedicated input and status
open collector)
A-1
A
Min Max
0 V 0.8 V
2 V 5 V
–70 µA
—
–10 µA
—
10 µA
—
40 µA
—
— –2.5 mA
–200 µA
—
NI 653X User Manual