公开(公告)号：JP2000315387A

公开(公告)日：2000-11-14

申请号：JP2000113867

申请日：2000-04-14

Applicant: INFINEON TECHNOLOGIES AG

Inventor： LE THOAI-THAI ,  TRUNK ANDREA ,  PFEFFERL KARL-PETER

IPC: G11C8/10 ,  G11C8/12 ,  G11C11/401 ,  G11C11/408

Abstract: PROBLEM TO BE SOLVED: To obtain a semiconductor memory having memory banks in which a design cost for a memory bank decoder is small. SOLUTION: In a semiconductor memory having memory banks, plural memory banks are operated by a memory bank decoder. Even if two groups of the memory bank are controlled through the same memory bank decoder, switching between the memory bank decoders is performed by using a pre- decoder. Thereby, layout of the memory bank decoder having comparatively small memory capacity can be succeeded to memories of memory bank decoder having comparatively large capacity.