Semiconductor memory device having an address key circuit for re

Details Semiconductor memory device having an address key circuit for re Semiconductor memory device having an address key circuit for re

1996-12-04

1998-03-24

Nelms, David C.

Static information storage and retrieval

Read/write circuit

Testing

365191, 36523008, G11C 700

Patent

active

057320349

ABSTRACT:
An input first stage is used for inputting both addresses and address keys. A test mode setting circuit and a function setting circuit are disposed between the input first stage and an address buffer. Each function setting mode buffer latches an internal address signal when a signal/RAS falls. Further, a function signal generating circuit is initialized by a power-on reset signal when a power supply is turned on.

REFERENCES:
patent: 4507761 (1985-03-01), Graham
patent: 4609985 (1986-09-01), Dozier
patent: 4618947 (1986-10-01), Tran et al.
patent: 4958345 (1990-09-01), Fujisaki
patent: 5596537 (1997-01-01), Sukegawa et al.

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