Semiconductor memory

Details Semiconductor memory Semiconductor memory

2006-07-04

2006-07-04

Dinh, Son T. (Department: 2824)

Static information storage and retrieval

Addressing

Sync/clocking

C365S233100

Reexamination Certificate

active

07072243

ABSTRACT:
A timer measures a predetermined time from the reception of an external access signal, and outputs an access request signal after the predetermined time has elapsed. The external access signal causes a memory core to execute a read operation, and the access request signal causes the memory core to operate. The predetermined time is set to be longer than a core operation time for the memory core to perform a single operation. The memory core thus performs no operation when the external access signal varies in a time shorter than the predetermined time. Consequently, it is possible to prevent the memory core from malfunctioning and data retained therein from crashing even when external access signals are supplied at intervals at which the memory core is unable to properly operate.

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