Semiconductor integrated circuit having a tree circuit

Details Semiconductor integrated circuit having a tree circuit Semiconductor integrated circuit having a tree circuit

1986-05-22

1988-02-16

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307463, 307443, 365231, H03K 19017, H03K 19094

Patent

active

047257423

ABSTRACT:
A semiconductor integrated circuit device has an address decoder which is constructed of a plurality of MOSFETs implemented in a switch tree. The switch tree includes first and second switch tree portions which are controlled `on` and `off` by the same input signals. A first switch branch in the first switch tree portion, which is constructed of a comparatively small number of MOSFETs, and a second switch branch in the second switch tree portion, which is constructed of a comparatively large number of MOSFETs, are controlled `one` and `off` by the same input signal, while a second switch branch in the first switch tree portion, which is constructed of a comparatively large number of MOSFETs, and a first switch branch in the second switch tree portion, which is constructed of a comparatively small number of MOSFETs, are controlled `on` and `off` by the same input signal. This construction is effective to lessen an increase in the number of MOSFETs which are to be coupled to the input lines of the address decoder.

REFERENCES:
patent: 3355598 (1967-11-01), Tuska
patent: 3551900 (1968-10-01), Annis
patent: 4140924 (1979-02-01), Oguey et al.
patent: 4176287 (1979-11-01), Remedi
patent: 4354175 (1982-10-01), Goldstein
patent: 4684829 (1987-08-01), Uratani

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