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SN74AHC74: Can it support 1.8V logic ?

Part Number: SN74AHC74


I know that the datasheet says that the minimum voltage that we can use the chip at is 2V but we urgently need to use D-flipflops in a design with 1.8V logic and we have SN74AHC74PWR coming in a shipment. Because of the time constraint we were wondering if it were possible to use this chip in our application of 1.8V logic.

Urgent support will be much appreciated.



  • It might be possible to use AHC devices at 1.8 V, if the power supply is stable enough to not drop too much below that, and if the temperature is not too low, and if you don't care too much about the electric specifications like propagation delay or drive strength. But there are no guarantees whatsoever.