Semiconductor device

Abstract

Provided is a semiconductor device having a novel configuration. The semiconductor device includes a first arithmetic operation block in which a first arithmetic operation core and a first memory are provided such as to overlap each other and a second arithmetic operation block in which a second arithmetic operation core and a second memory are provided such as to overlap each other. Each of the first memory and the second memory includes a transistor having an oxide semiconductor in a channel formation region. The first arithmetic operation core has a function of performing an arithmetic operation using first data held in the first memory. The second arithmetic operation core has a function of performing an arithmetic operation using second data held in the second memory. A read bit line which is used to read the first data and is electrically connected to the first memory is electrically connected to a first sense amplifier circuit provided in the first arithmetic operation block. A write bit line which is used to write the second data and is electrically connected to the second memory is electrically connected to the first sense amplifier circuit.