| 摘要 |
Disclosed herein is a semiconductor memory device, including: a memory array section wherein a memory array which is accessed with a predetermined data bus width is formed; an interface section configured to carry out interfacing between an external apparatus and the memory array section; and a converter having a conversion function of data and a control signal between the interface section and the memory array section and having conversion functions corresponding to specifications of the memory array; the interface section including a plurality of interface modules individually corresponding to different memory types and selectively adapted for the interfacing process between the external apparatus and the memory array section; the converter having a data width variation function of issuing a command and an address for the memory array based on information of access data of the memory array and outputting the access data after varying or without varying the data width.
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