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SN54LVTH244A-SP: SN54LVTH244A-SP

Part Number: SN54LVTH244A-SP

Are SN54LVTH244A-SP inputs cold sparable?  That is .. is there a high side ESD clamp diode?  If power is OFF on this device .. and the input is driven from a powered ON device .. will this high side ESD clamp diode form a sneak path to the powered OFF rail?

The IBIS model does not include a POWER clamp I-V curve for inputs.

  • Selwyn,
    This device is cold-spareable.
    This can be inferred from several pieces of data.
    1) Device has Ioff and Power up 3-state.
    2) Absolute max section does not limit input voltage range to VCC + diode drop. (implies no traditional ESD diode to VCC)
    3) Leakage specifications exist for inputs (Ioff, and inputs) for VCC=0.

    Regards,
    Wade