Integrated circuit memory devices including sub-word line driver

Details Integrated circuit memory devices including sub-word line driver Integrated circuit memory devices including sub-word line driver

1996-07-15

1998-09-15

Nelms, David C.

Static information storage and retrieval

Addressing

Particular decoder or driver circuit

36523003, 36518911, 326106, G11C 800

Patent

active

058089551

ABSTRACT:
An integrated circuit memory device includes a main row decoder, a sub-row decoder, and a sub-word line driver. The main row decoder decodes the first portion of a row address, and generates a main row activation signal when one of the plurality of rows have been selected. The sub-row decoder decodes a second portion of the row address, and generates a first sub-row activation signal when a first one of the plurality of rows has been selected. The sub-row decoder generates a second sub-row activation signal when a second one of the plurality of rows has been selected. The sub-word line driver activates a first memory cell in the first row in response to the main row activation signal and the first sub-row activation signal. The sub-word line driver activates a second memory cell of the second row in response to the main row activation signal and the second sub-row activation signal. The sub-word line driver includes a first driver circuit which activates the first memory cell in response to the main row activation signal, the first sub-row activation signal, and an inverse of the first sub-row activation signal. The sub-word line driver also includes a second driver circuit which activates a second memory cell in response to the main row activation signal, the second sub-row activation signal, and an inverse of the second sub-row activation signal.

REFERENCES:
patent: 5394375 (1995-02-01), Iwashita
patent: 5416747 (1995-05-01), Ohira
patent: 5517456 (1996-05-01), Chishiki
Tadahiko Sugibayashi et al., A 30-ns 256-Mb DRAM with a Multidivided Array Structure, IEEE Journal of Solid-State Circuits, vol. 28, No. 11, Nov. 1993, pp. 1092-1098.

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