Low voltage sense amplifier for operation under a reduced...

Details Low voltage sense amplifier for operation under a reduced... Low voltage sense amplifier for operation under a reduced...

2005-03-15

2005-03-15

Phan, Trong (Department: 2818)

Static information storage and retrieval

Read/write circuit

Differential sensing

C365S210130, C365S226000

Reexamination Certificate

active

06868024

ABSTRACT:
A regulated charge pump, regulated by a plurality of capacitor boost stages and separate from the memory device supply voltage (Vcc), generates a regulated voltage (VSA) over a range of supply voltages. The regulated charge pump powers sense amplifier and differential amplifier circuits of the memory device to permit a low bit line bias voltage. The differential amplifier circuit generates a logical output to indicate a memory cell programmed state that is detected by the sense amplifier circuit.

REFERENCES:
patent: 4752699 (1988-06-01), Cranford et al.
patent: 5453953 (1995-09-01), Dhong et al.
patent: 5608676 (1997-03-01), Medlock et al.
patent: 5654918 (1997-08-01), Hammick
patent: 5694035 (1997-12-01), Keeth
patent: 5929697 (1999-07-01), Chang
patent: 6075739 (2000-06-01), Ihara
patent: 6781890 (2004-08-01), Tanaka et al.

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