Semiconductor integrated circuit device having a hierarchical power source configuration

DETAILED DESCRIPTION It is therefore an object of the present invention to provide a semiconductor integrated circuit device which can be operated stably and at high speed with low current consumption even in the case of a low power source voltage.
It is another object of the present invention to provide a semiconductor integrated circuit device having a power source arrangement that is able to sufficiently suppress a sub-threshold current which flows through an MOS transistor.
It is a further object of the present invention to provide an internal voltage generating circuit capable of stably generating a high voltage and a negative voltage even in the case of a low power source voltage.
It is a still another object of the present invention to provide a semiconductor integrated circuit device having a source arrangement which reduces a load on the internal voltage generating circuit.
It is a yet another object of the present invention to provide a semiconductor integrated circuit device having a power source arrangement capable of sufficiently controlling a sub-threshold current even when a logic level of an input signal during a standby cycle cannot be predicted.
It is a still further object of the present invention to provide a semiconductor integrated circuit device capable of easily realizing a power source arrangement for suppressing a sub-threshold current.
According to a first aspect of the present invention, there is provided a semiconductor integrated circuit device including a main voltage transmission line for transmitting a voltage of a first logic level, a sub voltage transmission line, a resistive element connected between the main voltage transmission line and the sub voltage transmission line, a capacitor connected between the sub voltage transmission line and a node for supplying a voltage of a second logic level and composed of an insulated gate type field effect transistor, and a gate circuit operating with a voltage on the sub voltage transmission line as one operating source voltage to perform a predetermined logic process on a received signal and output the processed signal therefrom