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SN74AHCT244: SN74AHCT244 about output prebias in disenable

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Replies: 1

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Part Number: SN74AHCT244

Hi,

When the device is disabled and Vcc=5V condition, 0.54 V is applied to the output pin (1Y1~1Y4,2Y1~2Y4).
Is this a problem?
Customer is concerned that the device will be destroyed by pre-biasing the output pins when disabled and Vcc=5V condition.



Best Regards,
Yusuke

  • This is no problem.

    The recommended operating conditions allow to apply any external voltage between 0 and VCC. And when the outputs are disabled (OE high), no current flows.

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