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AM26LS31: Meaning of Output off-state voltage

Conor
Guru 10680 points
Part Number: AM26LS31
Other Parts Discussed in Thread: AM26C31

Hi,

The maximum absolute rating for "Output off-state voltage" is specified as 5.5V maximum. Is it correct to understand that "Output off-state voltage" means that the voltage that can be applied to the output terminal when no power supply voltage is applied is 5.5V?

Thanks,

Conor

  • 0
    Guru 298560 points

    The absolute maximum ratings table specifies limits that your circuit must respect, i.e., when the output is off (due to the driver enable pins), you must not apply an external voltage larger than 5.5 V to the outputs. (See section 8.3.2 of the datasheet.)

    As far as I can see, it is not specified what happens when the device is powered off.

    (Consider using the AM26C31, which has better electrical characteristics.)

  • 0
    TI__Mastermind 48447 points

    Hi Conor,

    The output pins are hi-z when VCC = 0V. The "output off-state voltage" is when the outputs are hi-z - which happens when the device is disabled through the enable pins or when VCC = 0V.  

    Best,

    Parker Dodson