Title:
論理演算回路、論理演算装置および論理演算方法
Document Type and Number:
Japanese Patent JP4177131
Kind Code:
B2
Abstract:
A logical calculation circuit capable of storing data, and performing logical calculations with high reliability and high speeds are provided. The residual polarized state s' of a load ferroelectric capacitor Cs' is actively changed so that the residual polarized state s' of a load ferroelectric capacitor Cs' is opposite to the residual polarized state s of a storage ferroelectric capacitor Cs. In the case a reference potential is made c=0 in the calculation operation, even if the second data to be calculated x=1 is given to the storage ferroelectric capacitor Cs in the residual polarized state s (the first data to be calculated)=0, the ferroelectric capacitor Cs does not reverse in polarity. Even with combinations other than s=0 and x=1, the ferroelectric capacitor Cs does not reverse in polarity. Difference is great between a potential VA=VA(0) occurring at a coupling node when x=1 is given to the ferroelectric capacitor Cs of s=0 and a potential VA=VA(1) occurring at the coupling node when x=1 is given to the ferroelectric capacitor Cs of s=1.
Inventors:
Kameyama Mitsutaka
Takahiro Hanyu
Kimura
Keiwa Fujimori
Takashi Nakamura
Hidemi Takasu
Takahiro Hanyu
Kimura
Keiwa Fujimori
Takashi Nakamura
Hidemi Takasu
Application Number:
JP2003029165A
Publication Date:
November 05, 2008
Filing Date:
February 06, 2003
Export Citation:
Assignee:
ROHM Co., Ltd.
International Classes:
G06G7/12; G06F7/48; G11C11/22; G11C15/04; G06F7/52; G06F7/533
Domestic Patent References:
| JP11039883A | ||||
| JP2001094412A | ||||
| JP2001520432A |
Attorney, Agent or Firm:
Koichi Tagawa