National Instruments PCI-6023E - Manual (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 k
Ω
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 k
Ω
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
µ
A
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 k
Ω
pull up)
Input high current (V
in
= 5 V, 100 k
Ω
pull up)
0 V
2.2 V
—
—
0.8 V
5 V
–75
µ
A
10
µ
A
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