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SN74CB3T3306

fly king
Prodigy 30 points
Other Parts Discussed in Thread: SN74CB3T3306as for SN74CB3T3306, the datasheet shows that: Absolute Maximum Ratings: VCC Supply voltage range(2) –0.5~ 7 V Recommended Operating Conditions: VCC Supply voltage 2.3 ~3.6 V Why do the two reatings have so big difference? and we want 5V output, so we connect the VCC to 5V power. Is it OK? does the electric charactors such as Ron， tpz will change if we use the chip out of range of the Recommended Operating Conditions?
  • 0
    TI__Genius 9085 points

    We only guarantee the correct operation of the device within the Recommended Operating Conditions. 

    There are many other options that will go to 5V depending on your application, both switches and translators.

     

     

     

  • 0 in reply to Hattie
    Prodigy 30 points
    If so, do you know why the two ratings (the max and the recommend )have so big difference? Because the max value confuses us.
  • 0 in reply to fly king
    TI__Genius 9085 points

    The MAX range is probably related to the physical fabrication process. Physically the chip can handle 7V without damage, however the part circuitry was not designed to perform consistently across the entire range. We do not characterize devices outside the recommended operating range, so unfortunately I cannot provide more information about this.

  • 0 in reply to Hattie
    Prodigy 30 points
    Thank you for your reply. I understand we shouldn't use the chip beyond the recommend range. So can you give a simulation or conclusion about the usage as follows? we connect the VCC to 5V power. and the input/output signal is 400KHZ I2C bus. How will electric charactors such as Ron，tpz change? especially the tpz , does it will become slower? Because the fast tpz is the reason we choose this chip. And if so, do you have any advice for me to modify the circuit or choose new chips? Thank you very much.