Semiconductor memory device

Details Semiconductor memory device Semiconductor memory device

1991-08-29

1993-09-07

LaRoche, Eugene R.

Static information storage and retrieval

Read/write circuit

Data refresh

365236, G11C 700

Patent

active

052435768

ABSTRACT:
A semiconductor memory device is capable of holding stored contents of dynamic memory cells effectively through a refresh operation. The memory device has a frequency-divider circuit, a refresh control circuit for generating a word line activation signal in response to an output of the frequency-divider circuit and a control circuit for controlling a frequency division value of the frequency-divider circuit.

REFERENCES:
patent: 4631701 (1986-12-01), Kappeler et al.
patent: 4758992 (1990-07-01), Taguchi
patent: 4935900 (1990-06-01), Ohsawa
patent: 4939695 (1990-06-01), Isobe et al.
patent: 4984210 (1991-01-01), Kumanoya et al.

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