Memory circuit with a substitution memory for faulty memory cells

摘要

A memory circuit (MEM_CIRC_2) comprises a main memory block (MEM), a substitution memory block (RED_REG) for substitution of faulty memory cells in the main memory block (MEM) and a control mean (CONTR_LOG) that activates the substitution memory block (RED_REG) and leaves the main memory block (MEM) inactivated in case of an access to a faulty memory cell and that redirects this access to the substitution memory block (RED_REG).