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  • TI Thinks Resolved

SN65MLVD200A: Max voltage on pin A/B

Intellectual 1820 points

Replies: 1

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Part Number: SN65MLVD200A

Hi team,

My customer is using SN65MLVD200A, and they found that in their system bus, the chip's A/B pin will connect 5V power supply with a 4.7kohm pull-up resistor.

In datasheet, the max condition is 4V for A/B pin. But since it's only a weak pull-up, could the chip work normally in such condition?

If RE/DE pin is set to make the chip disabled, could it help the chip survive in such condition?

Thank you!

  • All pins need to operate within the absolute maximum ratings in the datasheet. 5V is too high and even greater than the supply voltage. It will put device into undetermined state and possible damage the device. Can customer replace it with SN65MLVD202A?

    Dennis

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