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SN74AVC8T245: Max Data Rate support

Luke Sun
Intellectual 1830 points
Part Number: SN74AVC8T245
Other Parts Discussed in Thread: SN74AVC16T245, SN74AXC8T245

Hi team,

My customer wants to use SN74AVC16T245 in a high speed bus.

But they're wondering whether it could support 200MHz signal. And I find such parameter is not in datasheet.

Could you let me know how to estimate that number?

Thank you!

  • 0
    TI__Intellectual 1830 points
    Also adding one question: which level-translation device could support the fastest data rate ?
  • 0 in reply to Luke Sun
    TI__Guru* 97046 points
    Hi Luke,
    I have asked our translation expert to respond. He will be back with you within 24 hours.
  • 0
    TI__Guru 62240 points
    Hi Luke,

    What are the voltage levels for translation?
    The datasheet doesnt give a spec for data rate support, but the typical max data rates AVC16T245 device can support is 380Mbps which is 190Mhz for 1.8 ->3.3V translation.
    200Mhz may be a challenge, but the customer could definately try in their application to see if the signal integrity is acceptable to the receiver to operate correctly.
    The measurement of the datarate is done at 15pF loading, so datarate performance will change with little variation of the loading.
    SN74AXC8T245 is also designed to support max 380Mbps datarate.
    Do you know what is the interface here which requires 200Mhz speed?