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Open Ground Pin on 54AC74 and 54AC00 Devices

If the ground pin opens on either of these devices does the output go to a high impedance state?  What voltage can I expect if the output is 12 K-Ohms to ground?

What can I expect if the output is driving the input to another 54AC device? Will the driven device interpet the output as a high, low or indeterminate floating input?

 

Please get back to me at aeroneer@aol.com or call me at 201-240-4671.

 

Thanks

 

(rwin Goldfarb