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1. (WO2017153864) SEMICONDUCTOR DEVICE

Pub. No.:    WO/2017/153864    International Application No.:    PCT/IB2017/051116
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Feb 28 00:59:59 CET 2017
IPC: G11C 11/405
G06F 12/00
G11C 11/56
Applicants: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventors: KUROKAWA, Yoshiyuki
Title: SEMICONDUCTOR DEVICE
Abstract:
The circuit scale of a semiconductor device that can perform arithmetic processing of analog data is reduced. In the semiconductor device, a memory cell is configured to generate a first current corresponding to first analog data and to generate a second current corresponding to the first analog data and second analog data. A reference memory cell is configured to generate a reference current corresponding to reference data. A first circuit is configured to generate and hold a third current corresponding to the difference between the first current and the reference current when the first current is lower than the reference current. A second circuit is configured to generate and hold a fourth current corresponding to the difference between the first current and the reference current when the first current is higher than the reference current. One of the first circuit and the second circuit is configured to generate a fifth current corresponding to third analog data.