National-instruments PCI-6023E User Manual download pdf (Page 89)

Appendix A Specifications

National Instruments Corporation A-7 PCI-6023E/6024E/6025E User Manual

DIO<0..7>

Digital logic levels

Power-on state........................................ Input (High-Z),

50 kΩ pull up to

Data transfers ......................................... Programmed I/O

PA<0..7>,PB<0..7>,PC<0..7>

♦ PCI-6025E only

Digital logic levels

Handshaking........................................... 2-wire

Power-on state

PA<0..7>................................................ Input (High-Z),

100 kΩ pull up to

Level Min Max

Input low voltage

Input high voltage

Input low current (V

= 0 V)

Input high current (V

= 5 V)

0 V

2 V

—

0.8 V

5 V

–320 µ

10 µA

Output low voltage (I

= 24 mA)

Output high voltage (I

= 13 mA)

—

4.35 V

0.4 V

—

Level Min Max

Input low voltage

Input high voltage

Input low current (V

= 0 V, 100 kΩ pull up)

Input high current (V

= 5 V, 100 kΩ pull up)

0 V

2.2 V

—

0.8 V

5 V

–75 µA

10 µA

Output low voltage (I

= 2.5 mA)

Output high voltage (I

= 2.5 mA)

—

3.7 V

0.4 V

—

PCI.book Page 7 Wednesday, September 16, 1998 9:09 AM

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