CD4049UBD The input is left open

Mickey Zhang

Genius 12080 points

Hi Team,

What is the Output of CD4049UBD if the input is left open?

Thanks,

Best Regards,

0 Dennis Eichmann over 9 years ago

Guru 74080 points

A floating high impedance input will result in an unpredictable output. It can be high or low and it may change randomly.

0 Clemens Ladisch over 9 years ago

Guru 317480 points

Undefined. See section 11.1 of the datasheet.

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