SN74AUC2G07: VCC = 3.3V operation and VIH

Mitchell Spears

Part Number: SN74AUC2G07
Other Parts Discussed in Thread: TXU0101, 2N7001T

Tool/software:

Hello,

Is it possible to use SN74AUC2G07 with VCC=3.3V?

If so, what is VIH at VCC=3.3V? Is it still 1.7V?

The reason I ask is we have a 1.8V logic input and VCC = 3.3V and 3V3 output.

Thank you for the help!

0 Clemens Ladisch 30 days ago

Guru 259910 points

The recommended operating conditions do not allow a 3.3 V supply.

Anyway, to tbe able to accept a 1.8 V input signal, its supply also must be 1.8 V. You are allowed to pull up the output to a higher voltage.

(Do you really need an open-drain output? You could just use an actual level shifter like the 2N7001T or TXU0101.)

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