Semiconductor memory device

Details Semiconductor memory device Semiconductor memory device

2006-07-18

2009-08-04

Phung, Anh (Department: 2824)

Static information storage and retrieval

Addressing

Particular decoder or driver circuit

C365S239000

Reexamination Certificate

active

07570541

ABSTRACT:
A word control circuit activates word lines corresponding to a start row address and a next row address overlapping in the continuous mode. Accordingly, even in the case where the start address indicates an end memory cell connected to a word line, the switching operation of the word line becomes unnecessary. Memory cells connected to different word lines can be thus accessed in a sequential manner. That is, a controller accessing a semiconductor memory device can access the memory without data interruption. This can prevent the data transfer rate from lowering. Furthermore, it is made unnecessary to form a signal and control circuit for informing a controller of the fact that a word line is being switched so that the construction of a semiconductor memory device and a control circuit of the controller can be simplified. This results in reduction of the system cost.

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