SN74LVC1G175: The High-level input voltage parameter VIH can reach below 2V

Steve Sun

Part Number: SN74LVC1G175

Hi team,

I have seen that the MIN value of the High-level input voltage is 2V for 3.3V supply. Do we have a same device that has lower VIH than 2V with 3.3V supply (e.g. 1.7V)？

3 months ago

0 Malcolm Lyn 3 months ago

TI__Genius 14200 points

Hi Steve,

The only thing we would have is the 2-channel space-rated device:

SN54SC2T74-SEPRadiation Tolerant, Dual D-Type Flip-Flop With Integrated Translation datasheet

best,

Malcolm

0 Malcolm Lyn 3 months ago

TI__Genius 14200 points

Hi Steve,

Sorry I found a more suitable device that should work, but it's also 2-channel:

SN74LV2T74 data sheet, product information and support | TI.com

Best,

Malcolm

0 Steve Sun 3 months ago in reply to Malcolm Lyn

TI__Intellectual 1570 points

Hi Malcolm,

Thanks for your reply.

What is the difference between the 2V and below 2V devices? does they have different technology or focus on different application?

0 Clemens Ladisch 3 months ago in reply to Steve Sun

Guru 256410 points

The "T" devices are voltage level translators; they are designed with lower switching thresholds to allow this use case. (This is not the default because this implies a reduced noise margin for 0 V signals.)

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SN74LVC1G175: The High-level input voltage parameter VIH can reach below 2V