SN74LVC2G157 excess current

Hidetoshi Matsunami

Other Parts Discussed in Thread: SN74LVC2G157

Hello, I'm Hidetoshi Matsunami.

I would like to ask the SN74LVC2G157 Icc.

Does SN74LVC2G157 have the configuration that this device flows excess current(Icc) when the voltage of pin 6 and 7 are lower than Vcc voltage?

I found the information that the analog switch leads to an excess current draw from the V+ supply pin when control input Voh is lower than Vcc.

http://www.tij.co.jp/jp/lit/an/scda011/scda011.pdf

Best Regards,

Hidetoshi Matsunami

over 11 years ago

0 Chris Cockrill over 11 years ago

TI__Mastermind 46480 points

Hi Hidetoshi-san

The SN74LVC2G157 is not a switch. It is a buffered mux. If you have a voltage on any input that is not at Vcc or Gnd it will draw more current.

If it was a switch then it would still draw more current if the control pins are not at Vcc or gnd. The switch pins can be at any voltage and not effect the current.

0 Hidetoshi Matsunami over 11 years ago in reply to Chris Cockrill

Expert 2750 points

Hi Chris.

Thank you very much for your support.

I will use your response as reference.

Best Regards.

Hidetoshi Matsunami.

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SN74LVC2G157 excess current