Re: project
The IC 74HCT 245 is the Bidirectional Buffer IC and it is having 8 + 8 i/o pins named A0 -A7 and B0 - B7 .
When the OE poin is Set High , There will be No Data transfers in the 74HCT245 and the IO lines from A0-A7 and B0 - B7 will be in High impedence state ..
when OE is Set to low ,
a) when DIR Pin Set to low , the Dats available at the Input B0-B7 will be available at A0-A7
b) when DIR Pin Set to High , the Data available at the Input A0-A7 will be available at B0-B7
This is the operation of 74HCT245.
These things you can find out in the Datasheets itself in the Function table or Truth table section of the datasheet.