Appendix A
Specifications
NI PCI-7342 Hardware User Manual
A-6
ni.com
Digital I/O
Ports ........................................................4, 8-bit ports
Line direction...................................Individual bit programmable
Inputs
Voltage range...................................0 to 5 V
Input low voltage......................0.8 V
Input high voltage.....................2.0 V
Polarity ............................................Programmable, active-high
or active-low
Outputs
Voltage range...................................0 to 5 V
Output low voltage ...................<0.45 V at 24 mA sink
Output high voltage ..................>2.4 V at 24 mA source
Polarity ............................................Programmable, active-high
or active-low
PWM outputs
Number of PWM outputs .........2
Maximum PWM frequency......32 kHz
Resolution.................................8-bit
Duty cycle range.......................0 to (255/256)%
Clock sources ...........................Internal or external
RTSI
Trigger Lines ..........................................7
Maximum Power Requirements
+5 V (±3%) .............................................1 A
+12 V (±3%) ...........................................30 mA
–12 V (±3%) ...........................................30 mA
Power consumption ................................5.7 W
