SN74ALVTH16245: About a input signal frequency.

Kengo.Y

Guru 10385 points

Part Number: SN74ALVTH16245

Hi team.

I'd like to know how much signal frequency can it input.

Can I refer to ''Input transition rise or fall rate'' in the data sheet?

∆t/∆v = 10ns/V

Input = 5V

10(ns/V) / 5(V) = 2(ns)

F(Hz) = 1 / (2(ns)* 2) = 0.25 * 10^9 = 25MHz

Is it correct ?

Sincerely.

Kengo.

over 4 years ago

0 Dylan Hubbard over 4 years ago

TI__Mastermind 42670 points

Hi Kengo,

I'd recommend following this FAQ: https://e2e.ti.com/support/logic/f/151/t/742805?tisearch=e2e-sitesearch&keymatch=faq%3Atrue

The Input transition rate doesn't really pertain to maximum operating frequency of the device.

0 Kengo.Y over 4 years ago in reply to Dylan Hubbard

Guru 10385 points

Hi Dylan.

Thank you for your reply.

I understand that I can refer to same logic family.

When I refer to 'SN74ALVTH16601' , it was 150MHz.

However , what does the following mean?

Sincerely.

Kengo.

0 Dylan Hubbard over 4 years ago in reply to Kengo.Y

TI__Mastermind 42670 points

Hi Kengo,

I would always go by what the datasheet says. That 25 MHz isn't accurate and it based of a specific circumstance. We are updating these parametrics currently to provide more beneficial data.

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SN74ALVTH16245: About a input signal frequency.