Scully, Scott, Murphy & Presser
Semiconductor memory device having means for outputting redundancy replacement selection signal for each bank
 A semiconductor memory device having redundant memory selection circuit XRDN which outputs a redundant replacement selection signal for each bank. In a refreshing operation, each redundant decoder XRED only compares an address indicated by row address signal XADD with an address of a defective memory cell stored, without referring to a bank selection signal included in row address signal XADD. Redundant memory cell selection circuit XRDN outputs redundant replacement selection signals XRDNS(A), (B) for respective banks A, B, for indicating a bank in which the replacement is to be performed with a redundant memory cell. 
NEC Corporation
G G
G11C G11C
inventional inventional
Mamoru
Fujita