SN74LVC1G32: Unknown Status on Both Input A and Input B

Jim CHEN

Part Number: SN74LVC1G32

Dear Team,

May I know what is the output status if both input A and input B are unknown (X)?

Thank you.

Regards,

Jim

0 Clemens Ladisch over 5 years ago

Guru 316690 points

"X" does not actually mean "unknown"; it stands for either one of the two valid logic levels, H or L.

A CMOS input must never be left floating; see footnote (1) in section 6.3, and [FAQ] How does a slow or floating input affect a CMOS device?

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