公开(公告)号：US20230194628A1

公开(公告)日：2023-06-22

申请号：US17925643

申请日：2021-01-29

Applicant: Hitachi Astemo, Ltd.

Inventor： Tomoki TAKAMOTO ,  Akeo SATOH ,  Akira KOTABE

IPC: G01R31/58 ,  G01R31/28

CPC classification number: G01R31/58 ,  G01R31/2884

Abstract: An object of the present invention is to provide a semiconductor device capable of diagnosing disconnection of a signal line that transmits a command signal in an inspection process even if the command signal is assumed not to be transmitted in the inspection process. A semiconductor device according to the present invention includes a first semiconductor integrated circuit and a control circuit, the control circuit includes a means for controlling a signal line in response to a response signal from the first semiconductor integrated circuit, and the control circuit further includes a means for controlling the signal line regardless of a signal from the first semiconductor integrated circuit.