Thermodynamics deals with "equilibrium states of macroscopic matter", that is, considering macroscopic systems there are states which can be characterized fully by a few number of measured degrees of freedom and on such states we are not able, through macroscopic measurements to see the fact that the molecules and atoms are not really in equilibrium states. Those are the equilibrium states and Thermodynamics deals with those states of macroscopic systems.
Now I'm starting to study Statistical Mechanics and I wonder if the situation is the same. This question is because the book talks about the "thermodynamic limit" which is attained when we let $E,V,N\to \infty$ with finite $u = E/N$ and $v = V/N$.
This led me to think that Statistical Mechanics can deal with some more systems than the ones thermodynamics is concerned with. So Statistical Mechanics just drops the "macroscopic matter" part and deals with equilibrium states of general systems or it deals just with the same systems considered in thermodynamics but with another viewpoint?