Dynamic random access memory device equipped with two-way power

Details Dynamic random access memory device equipped with two-way power Dynamic random access memory device equipped with two-way power

1991-02-13

1993-06-22

Mottola, Steven

Static information storage and retrieval

Powering

365204, G11C 1140

Patent

active

052220443

ABSTRACT:
A random access memory device is equipped with a two-way power supplying system for distributing an external power voltage level and an internal power voltage level lower than the external power voltage level, and comprises a memory cell array associated with a plurality of bit line pairs as well as with reference voltage lines shifted to a half of the internal power voltage level, a plurality of sense amplifier circuits, a transfer gate unit coupled between the bit line pairs and the sense amplifier circuits, and a timing controlling unit for producing an activation signal fed to the sense amplifier circuits and a transfer gate controlling signal of the internal power voltage level fed to the transfer gate unit, wherein the activation signal is shifted to the external power voltage level so that the sense amplifier circuits rapidly increase small differences on the associated bit line pairs.

REFERENCES:
patent: 4583205 (1986-04-01), Watanabe
patent: 4709354 (1987-11-01), Ichinose et al.

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