A semiclassical model for the calculation of the heavy ion electronic stopping cross section in a wide energy range is proposed. Two mechanisms of energy loss are considered: (i) energy loss to excitation or ionization of the target electrons by the partly screened field of moving ion nucleus is calculated in the binary encounter approximation (BEA) and (ii) energy to electron exchange is calculated on the basis of the modified Firsov theory taking into account electron-electron scattering. For the determination of the average momentum transferred in a collision of two electrons the BEA is also used. The simple universal projectile velocity dependence of the average effective ion charge is applied in calculations.