user manual

Appendix A Specifications
© National Instruments Corporation A-7 NI 7350 User Manual
Digital I/O
Ports ....................................................... Up to 8 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
Built-in pull-up resistor.......................... 10 kΩ, configurable pull-up to
+5 V or pull-down to GND
Outputs
Voltage range.................................. 0 to 5 V
Output low voltage .................. 0.45 V at 24 mA
Output high voltage ................. 2.4 V at 24 mA
Max total DIO current
Sourced from controller........... 1 A
Polarity............................................ Programmable, active high
or active low
PWM outputs
Number of PWM outputs ........ 2
Max PWM frequency .............. 50 kHz
Resolution................................ 8-bit
Duty cycle range ...................... 0 to (255/256)%
Clock sources........................... Internal or external
RTSI
Trigger lines ........................................... 8
PXI Star Trigger (PXI-7350 only) ......... 1