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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
+
5V
DC
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
+
5V
DC
Level Min Max
Input low voltage
Input high voltage
Input low current (V
in
= 0 V)
Input high current (V
in
= 5 V)
0 V
2 V
—
—
0.8 V
5 V
–320 µ
A
10 µA
Output low voltage (I
OL
= 24 mA)
Output high voltage (I
OH
= 13 mA)
—
4.35 V
0.4 V
—
Level Min Max
Input low voltage
Input high voltage
Input low current (V
in
= 0 V, 100 kΩ pull up)
Input high current (V
in
= 5 V, 100 kΩ pull up)
0 V
2.2 V
—
—
0.8 V
5 V
–75 µA
10 µA
Output low voltage (I
OL
= 2.5 mA)
Output high voltage (I
OH
= 2.5 mA)
—
3.7 V
0.4 V
—
PCI.book Page 7 Wednesday, September 16, 1998 9:09 AM