SN65HVD75: Can sn65hvd75 3V3 transceiver work with 5V transceiver

Pecky Wu

Part Number: SN65HVD75

We know sn65hvd75 is an 3v3 transceiver, if we used sn65hvd75 as RS485 transceiver to communicate with an 5V transceiver, like SN65HVD82DR. Is it OK?

We test the communication function, they work well. But we want to know if there are any potential risk when 3V3 transceiver work with 5V transceiver?

over 3 years ago

0 Eric Hackett over 3 years ago

TI__Guru 69662 points

Pecky,

Please see this thread that addresses this question. In short, yes it is okay for 5V and 3.3V RS485 transceivers to share the same bus. More details are shared in the thread I linked.

Regards,

Eric Hackett

0 Pecky Wu over 3 years ago in reply to Eric Hackett

Prodigy 10 points

Thanks a lot. Eric

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SN65HVD75: Can sn65hvd75 3V3 transceiver work with 5V transceiver