Invention Grant
- Patent Title: Semiconductor device having capability of generating chip identification information
-
Application No.: US15240863Application Date: 2016-08-18
-
Publication No.: US09984767B2Publication Date: 2018-05-29
- Inventor: Hidehiro Fujiwara , Makoto Yabuuchi , Koji Nii , Yoshikazu Saito
- Applicant: RENESAS ELECTRONICS CORPORATION
- Applicant Address: JP Tokyo
- Assignee: RENESAS ELECTRONICS CORPORATION
- Current Assignee: RENESAS ELECTRONICS CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: McDermott Will & Emery LLP
- Priority: JP2012-198732 20120910
- Main IPC: G11C29/44
- IPC: G11C29/44 ; G06K19/07 ; G11C29/12 ; G11C7/10 ; G11C11/417 ; G11C29/06

Abstract:
A semiconductor device having a capability of generating chip identification information includes: an SRAM macro having a plurality of memory cells arranged in rows and columns; a test address storage unit configured to store a test address; a self-diagnostic circuit configured to output the test address based on a result of confirmation of operation of the memory cell selected by the test address; and an identification information generation circuit configured to generate chip identification information based on the test address which is output by the self-diagnostic circuit.
Public/Granted literature
- US20160358667A1 SEMICONDUCTOR DEVICE HAVING CAPABILITY OF GENERATING CHIP IDENTIFICATION INFORMATION Public/Granted day:2016-12-08
Information query