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SN74ABT541B: 4CH Device for SN74ABT541BP

Holly Gu
Intellectual 2750 points
Part Number: SN74ABT541B
Other Parts Discussed in Thread: SN74ABT125, SN74LVT125

Hi Team,

     Customer used to use SN74ABT541B but they only need 4ch, so they want to select a 4ch drive buffer, 

     1) Switching Characteristics tPLH/PHL should be similar or faster than SN74ABT541B.

     2) Only 1 OE to control 4 channels.

     3) Output voltage level should be similar with SN74ABT541B with the same load.

 What's the best choice here?

  • 0
    Guru 257670 points

    You get identical characteristics by staying in the ABT family. There is no four-channel device with a single OE, but you can use the SN74ABT125 and route the same signal to all four OEs (this is no problem with high-impedance CMOS inputs).

    The only alternative with similar drive strength is the SN74LVT125, which does not run above 3.3 V.