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ISO7242M: device recommended

Minghao Yin
Prodigy 365 points
Part Number: ISO7242M
Other Parts Discussed in Thread: ISO6742

Hi Team,

Customer want a isolation device use in such a system. Thay want use in a 5Mhz SPI net with all miso connect directly.

So I recommended ISO7242M to him. Customer says he want the tri-state gate. But he want use the CS（low enable）to control the device en pin.

And customer has 14 channels (5M 4pi SPI; 1M IO and 1 channel isolate power), there is difficult to PCB lay out. If we have some intergrated solution, you also could recommend to me.But this is not very necessary.

  • 0
    TI__Expert 8965 points

    Hi Minghao,

    Thank you for your question.

    What the customer is implementing in their system looks good and their approach is correct.

    Although the ISO7242M will work for the application, we recommend to use the ISO6742, which also supports using the CS to control the EN pin of the device. Unfortunately, We do not have a digital isolator with 14 channels.

    Regards,
    Aaditya Vittal