SN74LVC2G34: Standard CMOS , Schmitt-Trigger

Jim Tseng

Intellectual 2250 points

Part Number: SN74LVC2G34

Hey expert,

we need to extend our 3.3V signal. would like to choose SN74LVC2G34, but we found they have two different input type.

1.Standard CMOS

2.Schmitt-Trigger

Could i ask what is the different? How can we choose them easily?

Thanks Jim

over 2 years ago

0 Clemens Ladisch over 2 years ago

Guru 243820 points

You would use the Schmitt-trigger device if you can have signals edges that would violate the Δt/Δv limit of standard inputs. See Understanding Schmitt Triggers.

0 Jim Tseng over 2 years ago in reply to Clemens Ladisch

TI__Intellectual 2250 points

Understand, how about Standard CMOS?

Thanks!

+1 Dylan Hubbard over 2 years ago in reply to Jim Tseng

TI__Mastermind 42640 points

Hey Jim,

Those are just standard inputs. So you would use them in any case that isn't what Clemens mentioned.

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SN74LVC2G34: Standard CMOS , Schmitt-Trigger