SN74AVC2T244: Input Hysteresis

Steve Widener

Part Number: SN74AVC2T244
Other Parts Discussed in Thread: SN74AUP1T34, TXU0102, SN74LXC2T45, SN74AXC1T45

The front page of the datasheet indicates:

Input Hysteresis Allows Slow Input Transition and Better Switching Noise Immunity at Input

However there is a spec requiring 10v/nsec input rise/fall time which seems to somewhat contradict the hysteresis claim.

Do we have any specs for the hysteresis level?

over 1 year ago

+1 Clemens Ladisch over 1 year ago

Guru 314140 points

No. The hysteresis is so small that it is not worth guaranteeing a minimum amount.

0 Michael Ikwuyum over 1 year ago

TI__Mastermind 46586 points

Hi Steve,

You may also see the AUP family (SN74AUP1T34) allowing up to 200ns/V, SN74AXC1T45 up to 100ns/V and the TXU / LXC families (TXU0102 / SN74LXC2T45) with Schmitt-trigger inputs / no slew rate requirements, thanks.

Best Regards,

Michael.

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SN74AVC2T244: Input Hysteresis