Frequency divider

James Zhan

Expert 4365 points

Other Parts Discussed in Thread: SN74AUP1G17, SN74AUP1G74

Hi team,

Do we have frequency divider 30Hz input, and 15Hz output with 1.8V?

Thanks.

over 3 years ago

0 Emrys Maier over 3 years ago

TI__Guru* 96742 points

Hello,

This is a common application of the D-type flip-flop. Your signal is very slow -- is it a digital signal with fast transitioning edges (~ 10ns)?

I'd recommend to use the SN74AUP1G74 for a 1.8V signal -- if the inputs are slow transitioning, add a series Schmitt-trigger buffer to the input signal such as SN74AUP1G17.

The PRE\ and CLR\ pins should be terminated to VCC directly, despite my drawing showing them disconnected.

0 James Zhan over 3 years ago in reply to Emrys Maier

TI__Expert 4365 points

Hi Emrys,

Do you mean use SN74AUP1G74 + SN74AUP1G17?

Do we have any automotive grade device for this?

Thanks.

0 Emrys Maier over 3 years ago in reply to James Zhan

TI__Guru* 96742 points

I would recommend selecting devices based on your application from our parametric search tools. We have many D-type flip-flops as well as Schmitt-trigger buffers in our portfolio.

https://www.ti.com/logic-circuit/overview.html

Clock & timing

Clock & timing forum

Frequency divider