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SN74AXC8T245: What is guaranteed output skew?

John11513
Expert 5720 points
Part Number: SN74AXC8T245

Hi team,

Some documents about SN74AXC family said this family has "Guaranteed output skew...", However, i cannot find any output skew spec on SN74AXC8T245 datasheet. Can anyone tell me how do we guaranteed this spec?

Thank you,

John

  • 0
    TI__Guru 62060 points
    Hi John,

    Please let me know the voltage translation levels and other system information.
    We had measured typical skew for 1.8 to 3.3V at around 120ps-180ps.
  • 0 in reply to ShreyasRao
    TI__Expert 5720 points
    Hi Shreyas,

    Thank you for reply.
    Voltage levels:
    condition 1: VCCA=2.5V, VCCB=3.3V;
    condition 2: VCCA=3.3V, VCCB=2.5V.
    Could you please provide the guaranteed MAX skew?

    Also, unlike previous level shift device, it seems this new device doesn't require VCCA>VCCB, or VCCB>VCCA, correct?

    thank you,
    John
  • 0 in reply to John11513
    TI__Guru 62060 points
    Hi John,

    There is no restriction with the power supply conditions. It is fully configurable dual supplies operating from 0.65 to 3.6V on each of its port.
    We do not have the skew captures for this condition and cannot guarantee it currently.
    please let me know the source of the 'guaranteed output skew' information.