Variable stage charge pump

Static information storage and retrieval – Floating gate – Particular biasing

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365226, 36518909, G11C 700

Patent

active

057814732

ABSTRACT:
A variable stage charge pump for a flash memory device is described. The variable stage charge pump includes a first charge pump and a second charge pump. A first switch couples an output of the first charge pump to an input of the second charge pump. A second switch couples an input of the first charge pump to the input of the second charge pump. The first and second charge pump are series-coupled to a common output node when the first switch is in a first position and the second switch is in a second position, wherein the first and second charge pumps are parallel-coupled to the common output node when the first switch is in the second position and the second switch is in the first position.

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PCT International Search Report for International Application No. PCT/US96/15753, dated Jan. 31, 1997.

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