we have to complete projects in ELECTRONIC DESIGNING TECHNOLOGY our subject in 3rd year of electronics engineering.i have selected fastest finger first i want to know about designing steps for digital ics i.e IC7475 , IC74LS747 and also about timer IC555.which book or which website i should refer .
The data sheet is a good place to start. If you do a Google search on the IC, you will probably find some applications. Also, search the manufacturers website for application notes.