LARGE SCALE INTEGRATED CIRCUIT FOR LOW VOLTAGE OPERATION

摘要

Even for a wide range of supply voltage, a variation in power supply voltage of the wide range as for the voltage conversion circuit can respond to the type of power to the integrated semiconductor device consisting of fine elements in order to provide a large-scale integrated circuits that operate at a constant operating speed, each of the first circuit and a second circuit block operating in the block and a larger second voltage lower than the first voltage, the second circuit block comprises a number of logic circuits and a number of logic circuits operating in the first voltage is 2 between the voltage source-drain path, and including a first conductive type of the first MISFET, the second of the first conductive type second MISFET, the agent of claim 3 MISFET and the second conductive type of a second conductivity type 4 MISFET connected in series , a second MISFET of the first gate, the second bar having a greater level than the low level of the second voltage soon as the first bias voltage is supplied having a level lower than the high level of the second voltage at the same time, the gate of the MISFET 3 And a configuration in which ground voltage is supplied.; By adopting such a structure, than it is possible to provide a memory circuit which operates without significantly inhibit the rate performance even at a low power supply voltage can use a battery backup as a memory in memory or battery such action, but again not limited to the sense amplifier , it is of high speed and obtained an effect that it can provide the LSI of the low power consumption by using suitably selected in accordance with application of the circuit.