Keithley KPCI-3101 Series, User Manual

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KPCI-3101 — KPCI-3104 Series User’s Manual Specifications A-5
Table A-3 lists the specifications for the DIN/DOUT subsystems.
Table A-3
DIN/DOUT subsystem specifications
Feature
Port A
Specifications Port B
Specifications Port C
Specifications
Number of lines 8 (bidirectional) 8 (bidirectional) 7 (bidirectional)
Termination 22k
Ω
resistor pullup to +5V;
22
Ω
series resistor
Inputs
Input type
Input load
High-level input voltage
Low-level input voltage
High-level input current
Low-level input current Level sensitive
2 FCT2574 (TTL)
2.0V minimum
0.8V maximum
3
µ
A
−
3
µ
A
Level sensitive
2 FCT2574 (TTL)
2.0V minimum
0.8V maximum
3
µ
A
−
3
µ
A
Level sensitive
1 ASIC (TTL)
2.0V minimum
0.8V maximum
100
µ
A
−
100
µ
A
Outputs
Output driver
Output driver high voltage
Output driver low voltage
FCT2574 (TTL)
2.4V minimum
(I
OH
=
−
15mA)
0.5V maximum
(I
OL
= 12mA)
FCT2574 (TTL)
2.4V minimum
(I
OH
=
−
15mA)
0.5V maximum
(I
OL
= 12mA)
ASIC (TTL)
2.4V minimum
(I
OH
= 4mA)
0.8V maximum
(I
OL
= 4mA)