SN74HC00: SN74HC00DR Quiescent current

Hi Albert,

Currently have SN74HC00DR Icc issue!

Could you comment if customer’s Iq test method is correct? THX

Customer measurement method: Red rod connected to Pin14(Vcc) + 5V, black rod connected to Pin7(GND)! Using portable meter / FLUKE / desktop measurement results are consistent.

OK IC=> current 0.3mA (including wire resistance)
NG IC=> current 1.9mA (including wire resistance)

Hi Albert,

Thank you for your feedback!

The figure below is  the new measurement for Icc!

Could you comment if  test method is correct? THX

And the test result is 0.196mA, also deference with datasheet Icc= 20uA

Hi Albert,

But the test result is 0.196mA deference with datasheet Icc= 20uA!! (Could you give me an explanation)

And we found  two SN74HC00DR have deference Icc of test result(Could you give me an explanation ,What might be the reason for this difference THX)

Hello,

The most likely reason for such a large increase in the supply current is damage to the device. You can start a return (Failure Analysis) through your distributor.