  The severe constraints imposed on the parameter space of the minimal split
supersymmetry model by the infrared fixed point solution of the top Yukawa
coupling $Y_t$ are studied in detail in terms of the value of the top quark
mass measured at the Tevatron together with the lower bound on the lightest
Higgs mass established by LEP. The sensitive dependence of the higgsino mass
parameter $\mu$ and of the gaugino coupling strengths ${\tilde g}_{u,d}$,
${\tilde g}^\prime_{u,d}$ on the value of $Y_t$ in the vicinity of the Landau
pole is a remarkable consequence. A few other interesting features emerge,
though the model is found to be disfavored within the infrared fixed point
scenario because of the need to have several fine tunings at work on account of
the requirement of a low upper bound on $\tan\beta$.
