Data holding apparatus and data read out method

Details Data holding apparatus and data read out method Data holding apparatus and data read out method

2005-09-13

2005-09-13

Tran, M. (Department: 2827)

Static information storage and retrieval

Systems using particular element

Ferroelectric

C365S189050

Reexamination Certificate

active

06944045

ABSTRACT:
A data holding device is provided that is capable of holding data even if the power supply is shut off and reliability in holding data is high. The data holding device1is provided with a data latch circuit3and a ferroelectric memory section5. Ferroelectric capacitors17and19are capable of storing data in non-volatile manner. One end of the ferroelectric capacitor17is connected to the input node7aof an inverter circuit7through a transfer gate11. The transfer gate11is in the off state when data are passed. Therefore, even if input data D changes when data are passed, the change is quickly transmitted to the input node7a, so that reliability of latching operation does not lower even if the operation is made at usual speeds.

REFERENCES:
patent: 5274583 (1993-12-01), Rapp
patent: 5592411 (1997-01-01), Tai
patent: 5936879 (1999-08-01), Brouwer et al.
patent: 2000-077982 (2000-03-01), None
patent: 2000-124776 (2000-04-01), None

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