Dynamic semiconductor memory device and method for initializing

Details Dynamic semiconductor memory device and method for initializing Dynamic semiconductor memory device and method for initializing

1999-06-30

2000-12-05

Le, Vu A.

Static information storage and retrieval

Powering

365228, G11C 800

Patent

active

061575895

ABSTRACT:
A dynamic semiconductor memory device of a random access type has an initialization circuit that controls the switching-on operation of the semiconductor memory device and of its circuit components. The initialization circuit supplies a supply voltage stable signal once the supply voltage has been stabilized after the switching-on of the semiconductor memory device. The initialization circuit has an enable circuit that receives the supply voltage stable signal and further command signals externally applied to the semiconductor memory device. The enable circuit supplies an enable signal after a predetermined proper initialization sequence of the command signals applied to the semiconductor memory device is identified. The enable signal effects the unlatching of a control circuit provided for the proper operation of the semiconductor memory device.

REFERENCES:
patent: 5307319 (1994-04-01), Kohketsu et al.
patent: 5841724 (1998-11-01), Ebel et al.
patent: 5894446 (1999-04-01), Itou

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