CD4043B: Output logic when start-up

Kuramochi Tadahiko

Guru 28715 points

Part Number: CD4043B

Hi,

If "S" and "R" keeps Low from start-up, does "Q" output High or Low?

Best regards,

Kuramochi

0 Clemens Ladisch over 4 years ago

Guru 275820 points

0 Kuramochi Tadahiko over 4 years ago in reply to Clemens Ladisch

Guru 28715 points

Above answer was incorrect.

According to the article, output is unstable when startup.

0 Clemens Ladisch over 4 years ago in reply to Kuramochi Tadahiko

Guru 275820 points

The output begins being unstable, but will immediately latch into either the high or low state.

Logic forum