Patent ID: 6031778
Filing Date: 2000-02-29
Classification: G11C,H03K

Abstract:
A semiconductor integrated circuit comprising:a first voltage supply line for supplying a first voltage;a second voltage supply line for supplying a second voltage;a combination circuit, connected to said second voltage supply line, including at least one first field effect transistor;a sequential circuit including a latch circuit connected between said first voltage supply line and said second voltage supply line, said latch circuit including second field effect transistors;a third field effect transistor connected between said combination circuit and said first voltage supply line, for controlling supply of said first voltage to said combination circuit in response to a control signal; andcontrol means, having a first voltage generator for generating a third voltage, for selectively supplying said first voltage and the third voltage to each backgate electrode of a first group of said second field effect transistors in response to said control signal, said third voltage being biased from said first voltage so that an absolute value of each threshold voltage of the first group of said second field effect transistors increases.