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SN74LVC8T245: What are the functions in the isolation.

Part Number: SN74LVC8T245

Hi,

We are using the SN74LVC8T245DBR for the voltage level shift (for the 1.8v to 5v with the A to B operation), Please explain more about this function. If we use it in our application, which is mentioned image below.

As per the marked point in the mentioned image; If we follow these cases (for the 1.8v to 5v with the A to B operation);

CASE 1:  If We use the 3rd mode, As OE -H and DIR -H, then what will happen in the operation?

CASE 2:  If We use the 3rd mode, As OE -H and DIR -L, then what will happen in the operation?

Please provide a resolution on it.

Warmest regards,

Krishn Singh Chauhan