Roll call decoder for semiconductor memory having redundant memo

Details Roll call decoder for semiconductor memory having redundant memo Roll call decoder for semiconductor memory having redundant memo

1994-08-26

1996-05-14

Nelms, David C.

Static information storage and retrieval

Addressing

Particular decoder or driver circuit

365201, 365200, 365190, 371 211, G11C 800

Patent

active

055174582

ABSTRACT:
A roll call circuit for a semiconductor memory having a plurality of redundant memory cells, comprises a circuit for cutting off a path for transferring a memory cell information to an output pad at the time of a roll call test, and another circuit for transferring the result of the roll call test to the path so that the result of the roll call test is outputted from the output pad at the time of the roll call test.

REFERENCES:
patent: 4635190 (1987-01-01), Meyer et al.
patent: 4984205 (1991-01-01), Sugibayashi
patent: 5124949 (1992-06-01), Morigami
patent: 5343429 (1994-08-01), Nakayama et al.

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