I am wondering how do the line drivers or buffers work and their functionality.

I found the datasheet of 74LVC1G07SE-7 under the following link.

https://www.diodes.com/assets/Datasheets/74LVC1G07.pdf

If the input (A) is Low the output (Y) is Low.

If the input (A) is High the output (Y) is Z, which is high impedance ? and Z is not High.

How can the line be driven High ?

 

hi engr,
Open circuit line drivers are used in circuits where there is more than one line driver connected to the same line/s which has a shared pull-up resistor.

E