SN74LV08A / delta ICC specification

Ryuji

Guru 20090 points

Other Parts Discussed in Thread: SN74LV08A, SN74LV244A

Hello,

SN74LV08(obsoluted device) has ΔICC specification as 500uA.

But SN74LV08A doesn't have ΔICC specification.

Could you please kindly let me know this reason ?

Could I have the delta ICC data of SN74LV08A ?

Best Regards,
Ryuji Asaka

over 10 years ago

0 Chris Cockrill over 10 years ago

TI__Mastermind 46480 points

I am not sure why it is not specd in some LV parts. since it should be the same for all you can use the Dela Icc from the SN74LV244A datasheet.

0 Ryuji over 10 years ago in reply to Chris Cockrill

Guru 20090 points

Hello Chris san,

Thank you for the reply.

I understood that SN74LV08A has delta icc

And I can use the delta icc of SN74LV244A.

but I cannot find delta icc from the SN74LV244A data sheet .

could you please let me know the delta icc of SN74LV08?

Should we refer which data sheet ?

best regards,

ryuji asaka

0 Chris Cockrill over 10 years ago in reply to Ryuji

TI__Mastermind 46480 points

Sorry about that. I must have been looking a an LVC datashhet instead of LV.

I cant find delta Icc specd in any LV datasheets. After searching through al lot of data this is all I can find. see attached

It is Vin vs Icc on SN74LV00 with Vcc 3.3V. That is all the data I have

LV00 Vin Icc at 3.3V.xls

0 Ryuji over 10 years ago in reply to Chris Cockrill

Guru 20090 points

Hello Chris san,

Thank you for your checking.

I understood that SN74LV08 can be used TTL level and SN74LV08A can be used CMOS level.

So, SN74LV08A doesn't have delta icc.

By the way, Icc of SN74LV08A is 20uA.

Is this data all channel used data (SN74LV08A has 4ch) ?

If we use 4ch of SN74LV08A , icc will be 4 x 20uA = 80uA ?

Best Regards,

Ryuji Asaka

0 Chris Cockrill over 10 years ago in reply to Ryuji

TI__Mastermind 46480 points

Icc is measured with all outputs High or low. All Cmos parts will work with TTL inputs when Vcc is 3.3V but they will have Higher Icc when the input is not at the Vcc level. We do not have the data Icc to show this for LV devices.

The SN74LVC08A would be a better choice since since it actually has TTL specs for input levels and it also has Delta Icc spec.

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SN74LV08A / delta ICC specification