Current available in the +5V pins from I/O pxi-6508 connector?

[P.Martin]

Good morning,

How many current is available in the +5V pins (49 & 99) from the I/O pxi-6508 front connector? I need power for 3 x 74HCT245 for a hardware interface previous to the DIO.

Thanks & Best Regards.

Pedro

[Dennis_Knutson]

The max current is listed in the manual.

[P.Martin]

http://www.ni.com/pdf/manuals/374938b.pdf

1 A at +4.65 to +5.25 V

Thanks & Regards

[Buechsenschuetz]

Should be no problem to supply a couple of 74HCT... devices, they consume very little current when the signal rates/frequencies are not too high. Most of the current will be drawn by the output loads. 

It would be different with 74LS245, these beasts consume about 100mA per device quiescent current.