M Series Sink/Source Current Specifications for PFI, DIO, and Counters

Updated Mar 13, 2018

Reported In

Hardware

  • Multifunction I/O Device

Issue Details

What is the maximum current of M Series devices can sink and source on the PFI, DIO, and counters?
 

Solution

This information can be found in the Recommended Operation Conditions section of the M Series Specifications documents. PCI/PXI/USB (non-bus power) M Series devices can sink and source a maximum of 24 mA on P0.<0..31> and 16 mA on PFI <0..15>/P1/P2. Bus powered USB M Series devices can sink and source a maximum of 16 mA.

Since the counter shares the PFI lines, the specifications for the PFI lines are also relevant for the counters.

Recommended Operation Conditions for PCI/PXI M Series Cards
 
LevelMinMax
Input high voltage (VIH)2.2 V5.25 V
Input low voltage (VIL)0 V0.8 V
Output high current (IOH
P0.<0..31>
PFI <0..15>/P1/P2



–24 mA  
–16 mA
Output low current (IOL)
P0.<0..31>
PFI <0..15>/P1/P2



24 mA
16 mA

Recommended Operation Conditions for Bus Powered USB M Series Cards
 
LevelMinMax
Input high voltage (VIH)2.2 V5.25 V
Input low voltage (VIL)0 V0.8 V
Output high current (IOH)   
VOH = 2.7 V
VOH = 3.8 V



–16 mA  
– 6 mA
Output low current (IOL)6 mA

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