SN74AVC8T245: Propagation Delay Variability at Room Temperature

Francois Tolmie

Prodigy 130 points

Part Number: SN74AVC8T245
Other Parts Discussed in Thread: SN74AXC8T245

Good Day,

I would like to use the SN74AVC8T245 to translate signals from 1.8 V to 3.3 V.

In this case the propagation delays (t_PLH and t_PHL) varies between 0.5 and 3.9 ns (from A to B).

The min and max of this delay is specified for T_A of -40 to 85 degrees.

What would the min and max be at a fixed temperature of 25 degrees?

Kind regards,

Francois

over 3 years ago

0 Dylan Hubbard over 3 years ago

TI__Mastermind 42600 points

Hey Francois,

Typical propagation delay for this device would be around 1-2 ns @ 25 C.

0 Francois Tolmie over 3 years ago in reply to Dylan Hubbard

Prodigy 130 points

Thank you,

Before I select the "This resolved my issue" option I just want to ask one question please:

We are looking to find a way to translate the voltage of a set of digital signals from 1.8V to 3.3V with the lowest possible skew among those signals. What is the best voltage level translators that TI has for this?

0 Dylan Hubbard over 3 years ago in reply to Francois Tolmie

TI__Mastermind 42600 points

Hey Francois,

For this I would suggest the SN74AXC8T245.

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SN74AVC8T245: Propagation Delay Variability at Room Temperature