公开(公告)号：US20200072903A1

公开(公告)日：2020-03-05

申请号：US16534560

申请日：2019-08-07

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Yoshinori NISHIDA ,  Yoichi MAEDA ,  Jun MATSUSHIMA

IPC: G01R31/3185 ,  G01R31/3181 ,  G01R31/3183 ,  G01R31/3187

Abstract: A semiconductor device capable of suppressing a sharp change in current consumption and a self-diagnosis control method thereof are provided. According to one embodiment, the semiconductor device 1 includes a logic circuit, which is a circuit to be diagnosed, a self-diagnostic circuit for diagnosing the logic circuit, and a diagnostic control circuit for controlling the diagnosis of the logic circuit by the self-diagnostic circuit, and the diagnostic control circuit includes a diagnostic abort control circuit for gradually stopping the diagnosis of the logic circuit by the self-diagnostic circuit when the semiconductor device receives a stop signal instructing the stop of the diagnosis of the logic circuit by the self-diagnostic circuit.