SN74AXC2T45: Single power supply

Ryo Akashi

Part Number: SN74AXC2T45
Other Parts Discussed in Thread: SN74AXC1T45

Hello experts,

I have two question about SN74AXCxT45.

1. Is it possible to apply same voltage for Vcca and Vccb?

In datasheet, there is description in below.

For example, it means we can set Vcca=Vccb=3.3V. Is it correct?

2. If Q1 is yes, is it possible to do same thing for SN74AXC1T45?

In AXC1T45 datasheet, there is not same description.

I would appreciate if you would give me advice.

Thanks and best regards,

Ryo Akashi

+1 Clemens Ladisch over 3 years ago

Guru 243820 points

All AXC devices allow V_CCA = V_CCB.

0 Ryo Akashi over 3 years ago in reply to Clemens Ladisch

Hello Clemens-san,

Thank you for your reply. I understand AXC family can allow Vcca=Vccb.

So, in other word, it is no problem to supply Vcca and Vccb from same power rail.

Is my understanding correct?

Thanks and best regards,

Ryo Akashi

+1 Clemens Ladisch over 3 years ago in reply to Ryo Akashi

Guru 243820 points

Yes, you are correct.

Logic forum