SN74AVC4T774: absolute max output current rating

Frank Lai

Part Number: SN74AVC4T774

Tool/software:

Datasheet shows absolute max of +/- 50 mA for continuous output current.

Is this per pin or per package?

In other words, Can I safely sink 33 mA each on output 2B1 and 2B2 for a total current sink of 66 mA?

0 Michael Ikwuyum 1 month ago

Hi Frank,

Yes, 66 mA is < 100 mA and okay, thanks.

Best Regards,

Michael.

0 Frank Lai 1 month ago in reply to Michael Ikwuyum

Hi. To clarify, the datasheet says 100 mA continuous current through VCCA, VCCB, and GND.

But it says continuous output current of only 50 mA. So I am concerned 66 mA > 50 mA.

0 Clemens Ladisch 1 month ago in reply to Frank Lai

Guru 267040 points

The output current is measured per pin, so this is OK.

But with any output current above 12 mA, V_OL is no longer guaranteed.

0 Frank Lai 1 month ago in reply to Clemens Ladisch

Thank you

Logic forum