MEMORY WITH EXTENDED MODE

The invention discloses a memory with an extension mode. A memory system (400) includes a main memory (102), an auxiliary memory (104), a redundancy circuit (110), an extension control terminal (116), and a multiplexer (106). The main memory (102) has a line width and includes a write data input. The auxiliary memory (104) has the same line width as the main memory (102) and includes a write data input. The redundant circuit (110) includes an input terminal and an output terminal. The input is coupled to a write data input of the main memory (102). The multiplexer (106) includes a first input, a second input, a control input, and an output. The first input is coupled to a write data input of the main memory (102). The second input is coupled to the output of the redundant circuit. The control input is coupled to an extension control terminal (116). An output of the multiplexer (106) is coupled to a write data input of the auxiliary memory (104). 本申请公开了具有扩展模式的存储器。一种存储器系统(400)包括主存储器(102)、辅助存储器(104)、冗余电路(110)、扩展