©
National Instruments Corp.
13
NI 9401 Operating Instructions and Specifications
Digital logic levels
Inp
u
t
Voltage ................................. 5.25 V max
High, V
IH
.............................. 2 V min
Low, V
IL
............................... 0.8 V max
O
u
tp
u
t
High, V
OH
............................. 5.25 V max
So
u
rcing 100
μ
A ........... 4.7 V min
So
u
rcing 2 mA............... 4.3 V min
Low, V
OL
Sinking 100
μ
A ............. 0.1 V max
Sinking 2 mA................. 0.4 V max
