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SN74LVT162244A: Why the SN74ALVTH162244VR part would not work in an SN74LVT162244ADGVR part location.

Part Number: SN74LVT162244A

Good morning I am seeking the answer to this question: reasons why the SN74ALVTH162244VR part would not work in an SN74LVT162244ADGVR part location. The pin outs are exactly the same and the only real stand out from the data sheet is the difference in the current.

http://www.ti.com/lit/ds/symlink/sn74alvth162244.pdf

http://www.ti.com/lit/ds/symlink/sn74lvt162244a.pdf

Orderable P/N: SN74LVT162244ADGVR

VERSUS

Orderable P/N: SN74ALVTH162244VR