Semiconductor device having read and write operations...

Details Semiconductor device having read and write operations... Semiconductor device having read and write operations...

2006-11-14

2006-11-14

Nguyen, VanThu (Department: 2824)

Static information storage and retrieval

Read/write circuit

Signals

C365S203000, C365S230030, C365S233100

Reexamination Certificate

active

07136312

ABSTRACT:
In a semiconductor device that needs a refresh operation for storing data, data of memory cells selected in response to a row address is read to main amplifiers through bit line pairs, sense amplifiers and data line pairs in a page-mode read operation. Thereafter, while outputting the data held in the main amplifiers to the outside, connecting transistors are turned off so as to disconnect the main amplifiers from the memory cells, and thus, the memory cells can be precharged. Also, in a page-mode write operation, while writing externally supplied input data in the main amplifiers, the memory cells can be precharged.

REFERENCES:
patent: 5241503 (1993-08-01), Cheng
patent: 5253211 (1993-10-01), Suzuki
patent: 5274598 (1993-12-01), Fujii et al.
patent: 5978255 (1999-11-01), Naritake
patent: 6009024 (1999-12-01), Hirata et al.
patent: 6507529 (2003-01-01), Fujimoto et al.
patent: 5-6659 (1993-01-01), None

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