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SN75ALS1178: Lower limits of absolute maximum

Shuji Ishiwata
Mastermind 6695 points
Part Number: SN75ALS1178

Hi All,


I have a question about SN75ALS1178.

What are the lower limits of absolute maximum ratings for the DE pins (pin 4, pin 12) and driver input pins (pin 9, pin 15)?
Only the upper limit values are listed in the datasheet.

Best Regards,
Ishiwata

  • +1
    Guru 286100 points

    There are clamping diodes from GND to the input pins. Stay above −0.5 V to prevent a current to flow through these diodes.

    (Many datasheets allower lower voltages if the diode current is limited, but the SN75ALS1178 datasheet does not specify such a limit.)