SN74AUP1T34: 25MHz Clock 3.3V to 1.0V

Joseph Cohen

Part Number: SN74AUP1T34
Other Parts Discussed in Thread: SN74AUC1G17

Hi Team,

Any concerns with using the SN74AUP1T34 as a level translator from 3.3V to 1.0V on a 25MHz clock?

We noticed that the max propagation delay could be >40ns (for 3.0V to 0.9V), which would be longer than the 25MHz clock period, so are there any other devices you'd recommend instead?

Thank you,

Joe

over 3 years ago

0 Clemens Ladisch over 3 years ago

Guru 311870 points

The AUP logic family is low-power and slow. The fastest low-voltage family is AUC.

For translating down, you can just use a buffer with overvoltage-tolerant input, such as the SN74AUC1G17.

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SN74AUP1T34: 25MHz Clock 3.3V to 1.0V