D-flip-flop with Schmitt Trigger inputs

Hans

Other Parts Discussed in Thread: SN74AUC74, SN74AUP1G74

Hello Team,

does TI provide a D-flip-flop (ideally pin compatible with SN74AHCT74PWR) which has Schmitt-Trigger inputs or CLK, /PRE and /CLR, please?

Thanks,

Hans

over 13 years ago

0 Chris Cockrill over 13 years ago

TI__Mastermind 46480 points

We have some single bit devices with some hysteresis. They are not true schmitt triggers and will have a relaxed ris and fall limit. they are also low voltage.

These are all I could find

SN74AUC74

0 Richard Woodham over 13 years ago in reply to Chris Cockrill

Prodigy 10 points

How about SN74AUP1G74 who's datasheet claims to have "Schmitt-Trigger Action"

0 Chris Cockrill over 13 years ago in reply to Richard Woodham

TI__Mastermind 46480 points

This part will have a rise and fall limit of 200ns/V max. Not a true schmitt trigger.

0 ytan over 13 years ago in reply to Chris Cockrill

Intellectual 325 points

Hi Chris,

What is the typical rise/fall time limit for a true schmitt trigger?

Thanks.

0 Chris Cockrill over 13 years ago in reply to ytan

TI__Mastermind 46480 points

A true schmitt trigger will not have a limit

Logic

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D-flip-flop with Schmitt Trigger inputs