Semiconductor memory device carrying out input and output of dat

Details Semiconductor memory device carrying out input and output of dat Semiconductor memory device carrying out input and output of dat

1994-09-07

1996-07-16

Nelms, David C.

Static information storage and retrieval

Read/write circuit

Multiplexing

365201, 36523002, G11C 800

Patent

active

055373518

ABSTRACT:
In a general read out operation, data read out from a memory cell array is amplified by a preamplifier group. The amplified data is provided to a selector unit. The selector unit responds to a bit organization select signal to select data according to a predetermined bit configuration. The selected data is provided to a data bus. In a test mode, the selector unit responds to a test mode signal to provide a test result to a data bus corresponding to a predetermined bit organization. Therefore, only the required data bus is used according to the bit organization and the test mode.

REFERENCES:
patent: 4899313 (1990-02-01), Kumanoya
patent: 4907203 (1990-03-01), Wada
patent: 4956811 (1990-09-01), Kajigaya et al.
patent: 5016220 (1991-05-01), Yamagata
patent: 5400281 (1995-03-01), Morigami

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