Semiconductor memory device for use an apparatus requiring high-

Static information storage and retrieval – Addressing – Particular decoder or driver circuit

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Details

36523003, 36518905, 327433, 327434, G11C 1134

Patent

active

054673178

ABSTRACT:
A semiconductor memory device including a plurality of cell array sections each having a plurality of memory cells disposed in a matrix form, the plurality of cell array sections being juxtaposed in a row direction. Main word lines, are each provided in common for all of the plurality of cell array sections in each row, a row select signal being applied to each main word line. Section word lines are connected to memory cells, in each cell array section at each row, for activating the memory cells. Section select lines are provided for each cell array section, a section selection signal being applied to each section select line. Logical circuits are provided for each cell array section, each logical circuit being connected to each main word line and the section select line, executing a logical operation between the row select signal and the section select signal, and activating the section select line when the logical operation result satisfies a predetermined logical condition. Each logical circuit includes a first inverter, a CMOS type second inverter and an N-channel transistor. Each main word line is connected to the input terminals of the first and second inverters. Each section select line is connected to the drain of the N-type transistor and the source of a P-channel transistor of the second inverter. The gate of the N-channel transistor is connected to the output terminal of the first inverter and each section word line is connected to the source of the N-channel transistor and the output terminal of the second inverter. Bit lines are connected to each memory cell for receiving data from a selected memory cell and outputting the data.

REFERENCES:
patent: 4761769 (1988-08-01), Saito
patent: 4791382 (1988-12-01), Shiomi et al.
patent: 4796234 (1989-01-01), Itoh et al.
patent: 4899066 (1990-02-01), Aikawa et al.
patent: 5042010 (1991-08-01), Ogiue et al.

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