• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 18 subscribers
  • Views 272 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

SN74LVC1T45-Q1: Port state for specific condition

Takuma Ito
Expert 5200 points
Part Number: SN74LVC1T45-Q1

could you tell me what the Aport/Bport states are in below condition?

1. Either VCCA or VCCB is below 1.65V and other side is above 1.65V

2. VCCA=VCCB=GND, DIR=X(dont care)

3. VCCA=GND, VCCB=1.65V~5.5V, DIR=X(dont care)

  • 0
    TI__Genius 16735 points

    Hi,

    The simple answer is "the VCC isolation feature assures that if either VCC input is at GND, then both ports are in the high-impedance state."

    1. Both I/O are active. Since one VCC is below 1.65 proper operation will not be guaranteed.

    2. Ports are in Hi-Z.

    3. Ports are in Hi-Z.

    Thanks!

    -Karan