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DS96F175MQML: Cold Sparing

Mark Philip Felipe
Genius 9775 points
Part Number: DS96F175MQML
Other Parts Discussed in Thread: DS16F95

Hi Team, we would like to seek help with our customer's request.

Is the DS96F175 quad differential receiver cold-sparing? specifically whether the I/O are in a high impedance state when Vcc=0.
Thank you in advance.

  • 0
    TI__Guru 62930 points

    Mark,

    It is not specified for this.   However, let me check with Kirby to see if he has any additional data.

    Regards,

    Wade

  • 0 in reply to Wade Vonbergen
    TI__Guru 62930 points

    Mark,

    This device is not specified nor tested for the Vcc=0 case.

    However, I have done a little research and discovered that the input channels between the DS16F95 and the DS96F175M are nearly identical.

    The DS16F95 is somewhat cold-sparable. 

    The input structure can feed the VCC rail, so in this case a low impedance should be present on VCC when powered off to prevent back biasing VCC from the inputs.  This is not high impedance, but should present the same impedance as when powered up.  A cold spare device will present a load on the bus.

    If this answers your question, please click "This Resolved My Issue"
    Regards,
    Wade