Dynamic memory

Details Dynamic memory Dynamic memory

1997-10-15

1999-05-18

Nguyen, Tan T.

Static information storage and retrieval

Read/write circuit

Differential sensing

365205, G11C7/00

Patent

active

059056851

ABSTRACT:
In a dynamic RAM having a memory cell array in which a dynamic memory cell is arranged at an intersection between a word line and one of a pair of bit lines, a select level signal corresponding to a supply voltage and an unselect level signal corresponding to a negative potential lower than circuit ground potential are supplied to the word line. A signal of a memory cell read to the pair of bit lines by a sense amplifier that operates on the circuit ground potential and an internal voltage formed by dropping the supply voltage by an amount equivalent to the threshold voltage of the address select MOSFET is amplified. The dynamic RAM has an oscillator that receives the supply voltage and circuit ground potential and a circuit that receives an oscillation pulse generated by the oscillator to generate the negative potential.

REFERENCES:
patent: 5446694 (1995-08-01), Tanaka et al.

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