SN74AUC1G08, What is the max available frequency ?

zhi wang8

Prodigy 20 points

Other Parts Discussed in Thread: SN74AUC1G08

I get the max frequency is 250MHz for SN74AUC1G08 from the parameter page.

When I use a signal of 100MHz for A and B, I found that the Y output of the device is correct.

When I use a signal of 200MHz for A and B, I found that the Y output of the device is nothing.

Why?

over 8 years ago

0 Cameron Phillips over 8 years ago

TI__Genius 12410 points

Hello,

You said that at 100MHz the device is working but it does not look like you are getting an output. On your scope shot is that A and B or A and Y?
Are you switching both A and B as the same time or keeping one constant?

Also what is your VCC? Are you hitting the Vih Threshold for the device?

Thank you,
Cameron

0 zhi wang8 over 8 years ago in reply to Cameron Phillips

Prodigy 20 points

The device is working at 100MHz, but not at 200MHz.

The A and B are all 200MHz signal just as the second scope shot, and the A and B are the same phase and same frequency.

So, the Y should be one 200MHz signal just like as A or B.

But in fact, I can't get the Y signal on the scope.

VCC = 2.5V.

0 Cameron Phillips over 8 years ago in reply to zhi wang8

TI__Genius 12410 points

Can you send a shot of it working at 100MHz?

Also can you send a picture of your schematic?

The part is able to function in the scenario you describe

Thank you,

Cameron

Logic

Logic forum

SN74AUC1G08, What is the max available frequency ?