Voltage generating circuit in semiconductor integrated circuit

Details Voltage generating circuit in semiconductor integrated circuit Voltage generating circuit in semiconductor integrated circuit

1996-05-22

1997-05-27

Nelms, David C.

Static information storage and retrieval

Read/write circuit

Including reference or bias voltage generator

36518911, 327534, 327536, G11C 700

Patent

active

056338252

ABSTRACT:
A voltage generating circuit in a semiconductor integrated circuit driven by two sorts of power supply voltages, includes a unit for generating plural sorts of signals; a unit for selecting one of the plural sorts of signals in response to an operation mode of the semiconductor integrated circuit; and a pumping unit for producing either a first predetermined voltage higher than the high power supply voltage among the two sorts of power supply voltages, or a second predetermined voltage lower than the low power supply voltage by a pumping operation based upon the signal selected by the selecting unit.

REFERENCES:
patent: 5119337 (1992-02-01), Shimizu et al.
patent: 5124574 (1992-06-01), Ibaraki
patent: 5208557 (1993-05-01), Kersh, III
patent: 5220534 (1993-06-01), Redwine et al.
patent: 5264808 (1993-11-01), Tanaka
patent: 5329168 (1994-07-01), Sugibayashi et al.

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