SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE

摘要

A semiconductor integrated circuit device is provided to simultaneously realize an improvement of an operation speed and low power consumption by supplying an optimal voltage to respective circuit blocks. A semiconductor integrated circuit device includes a first chip(CHP1) and a second chip(CHP2). The first chip includes a first circuit block and a first conversion circuit. The first circuit block has a first transistor, a first node, and a second node. A first power being a potential difference between the first node and the second node is supplied to the first circuit block. The second circuit block transmits a signal amplitude of an output signal of the first circuit block to an outside of the first circuit block. The second circuit block has a second transistor, a third node, and a fourth node. A second power being a potential difference between the third node and the fourth node is supplied to the second circuit block. The second circuit block converts a signal amplitude of an output signal of the first circuit block into a second voltage, and transmits the second voltage to the second circuit block.