The DC input currents of CMOS are orders of magnitude lower that those of TTL.However, the input capacitances are comparable so the switching transients are not much lower.

• CMOS器件的输入电流与TTL器件相差几个数量级，不过，由于二者的输入电容差不多，所以交流瞬态性能并没有大幅优化[译者疑虑]。