SN74CBT3345C: Condition of "Continuous current through Vcc or GND terminals +-100mA"

Motoyasu Hattori

Part Number: SN74CBT3345C

Tool/software:

Hi,

We can see "Continuous current through Vcc or GND terminals +-100mA" on absolute maximum rating table of the datasheet as follows:

Could you please let us know the condition of this situation (Continuous current through Vcc or GND terminals)?

Please advise us. I can not guess the condition of flowing continuous current to Vcc/GND terminals.

Thanks and best regards,
M.HATTORI.

2 months ago

+1 Clemens Ladisch 2 months ago

Guru 272990 points

When the voltage at a control or I/O pins is less than −0.5 V, then a current can flow through the clamping diode. And when this happens at three pins, with a current of 50 mA each, then you exceed this limit for the GND pin. (This device does not have any buffered outputs or any clamping diodes to V_CC, so it is not possible to exceed the V_CC limit.)

+1 Kameron Hill 2 months ago in reply to Clemens Ladisch

TI__Genius 14460 points

Hello HATTORI,

I agree with Clemens on this.

Please let us know if you have any additional questions!

Regards,

Kameron

Switches & multiplexers

Switches & multiplexers forum

SN74CBT3345C: Condition of "Continuous current through Vcc or GND terminals +-100mA"