Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1994-05-16
1996-10-22
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327530, 326 33, G05F 110
Patent
active
055680852
ABSTRACT:
A unit for stabilizing the voltage on a capacitive node of a memory array, such as a common node bit line (CNBL), is disclosed. The unit includes an amplifier connected to the CNBL line and to one voltage source and a leaker connected to the CNBL line and to the other voltage supply, where the two voltage supplies can be the positive and ground supplies. The leaker is much smaller then the amplifier thereby to remove current from the CNBL line when there is little or no activity in The memory array. An alternative version of the unit which is also operative for standby operation is disclosed. In this embodiment, there is a switchable high power unit activatable during an active mode and a low power unit. Both units include an amplifier and a leaker connected as in the previous embodiment. The leakers are much smaller then the amplifiers and the amplifier of the high power unit is much larger than the amplifier of the low power unit. The high power unit also includes control transistors for disabling its amplifier and leaker during the standby mode.
REFERENCES:
patent: 4477736 (1984-10-01), Onishi
patent: 4638187 (1987-01-01), Boler et al.
patent: 4694199 (1987-09-01), Goetz
patent: 4812735 (1989-03-01), Sawada et al.
patent: 5296757 (1994-03-01), Koizumi
patent: 5329175 (1994-07-01), Peterson
patent: 5362988 (1994-11-01), Hellums
Eitan Boaz
Kazerounian Reza
Pasternak John H.
Shubat Alex
Callahan Timothy P.
Gunnison Forrest E.
Kim Jung Ho
Waferscale Integration Inc.
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