SN74AUP*240/241 output enable input current

Jonas Meyer

Prodigy 80 points

Other Parts Discussed in Thread: SN74AUP2G240, SN74AUP1G240

The datasheets of devices like SN74AUP*125/126 state input currents for A as well as for OE inputs.

In the datashees of SN74AUP*240/241 no input current for OE inputs is specified.

Does anybody know how large these input currents are?

over 11 years ago

0 Jonas Meyer over 11 years ago

Prodigy 80 points

I noticed that my question only makes sense for dual gate devices. The input currents of single gate devices are actually specified for A and OE inputs. Therefore I assume that A and OE input currents of dual gate devices are the same.

0 Chris Cockrill over 11 years ago in reply to Jonas Meyer

TI__Mastermind 46480 points

Hi Jonas

The input current is specd per pin

0 Jonas Meyer over 11 years ago in reply to Chris Cockrill

Prodigy 80 points

If you compare the SN74AUP1G240 and SN74AUP2G240 datasheets you will notice that they are not very consistent

SN74AUP1G240: provides specs for A and /OE inputs (electrical as well as switching characteristics).

SN74AUP2G240: provides specs for A and B inputs (electrical as well as switching characteristics) but this dual gate device actually has no B input. There are no specs for the /OE input at all.

This could be a typo and B input actually should read /OE input.

I will submit a documentation feedback with reference to this thread.

0 Chris Cockrill over 11 years ago in reply to Jonas Meyer

TI__Mastermind 46480 points

Ok I see now. Thanks we will fix it.

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SN74AUP*240/241 output enable input current