Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

2006-02-21

2006-02-21

Phung, Anh (Department: 2824)

Static information storage and retrieval

Systems using particular element

Ferroelectric

C365S065000, C365S157000, C365S109000

Reexamination Certificate

active

07002834

ABSTRACT:
At switching normal operation mode to low power mode, a first switch disconnects a virtual power supply line and a normal power supply line in response to activation of a switch control signal. The power supply voltage to a first circuit block connected to the virtual power supply line is suspended during the low power mode. A second switch of a floating prevention circuit connects a node between output of the first circuit block and input of a second circuit block to a first voltage line in response to inactivation of the switch control signal during the low power mode. This prevents the input of the second circuit block from floating even without the power supply voltage supplied to the first circuit block, and therefore prevents feedthrough current from flowing through the second circuit block, which enables reduction in power consumption during the low power mode.

REFERENCES:
patent: 5029128 (1991-07-01), Toda
patent: 5781062 (1998-07-01), Mashiko et al.
patent: 6337824 (2002-01-01), Kono et al.
patent: 6646909 (2003-11-01), Miwa et al.
patent: O5-210976 (1993-08-01), None
patent: 07-212217 (1995-08-01), None

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