Memory device

Details Memory device Memory device

1999-06-23

2000-08-15

Nelms, David

Static information storage and retrieval

Powering

36518909, 36518911, 3652335, G11C 700

Patent

active

061046590

ABSTRACT:
A memory device comprises: a plurality of banks each of which includes an array of memory cells; and at least a first and a second internal power generator, provided for each of the plurality of banks, for generating an internal power source voltage which differs from a voltage supplied by an external power source. If the internal common power source voltage in the memory device is lower than the first voltage when the power is on, the first and the second internal power generators in a plurality of banks are activated so as to rapidly raise the common internal power source voltage. When the common internal power source voltage in the memory device is higher than the first voltage and lower than the second voltage, the second internal power generators in the banks are activated to compensate for a drop in the internal power source voltage, which is caused by current leakage. When the internal power source voltage in a bank in the activated state is lower than the third voltage, the first and the second internal power generators in the corresponding bank are activated and satisfactorily drive the internal power source voltage in the bank so as to operate the memory device at a high speed.

REFERENCES:
patent: 5612924 (1997-03-01), Miyamoto
patent: 5814851 (1998-09-01), Suh
patent: 6038178 (2000-03-01), Oh
patent: 6041012 (2000-03-01), Banba et al.

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