Decoder circuit having selective transfer circuit for decoded ou

Details Decoder circuit having selective transfer circuit for decoded ou Decoder circuit having selective transfer circuit for decoded ou

1989-01-31

1990-10-09

Hudspeth, David

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307448, 307452, 307481, 36523006, H03K 19096

Patent

active

049623273

ABSTRACT:
A decoder circuit comprises a plurality of signal conductors, first potential setting units for setting a potential of the signal conductors to a first potential, second potential setting units for maintaining a potential of one signal conductor at the first potential and bringing a potential of the remaining signal conductors to a second potential, and a plurality of transfer transistors provided for each signal conductor. A gate electrode of the each transfer transistor is connected to each corresponding signal conductor, a source electrode thereof is connected to another signal conductor, and one transfer transistor is switched ON and a decoded output signal is output when a gate potential of the one transfer transistor is maintained at the first potential and a source potential thereof is brought to the second potential. Therefore, only one output signal conductor is selected during a decoder operation without using a discharge detecting circuit of a non selected output signal conductor and a timing signal, and thus an operation speed of the decoder circuit is much higher and the decoding circuit has a simpler construction and is suitable as a large scale integration circuit.

REFERENCES:
patent: 4143390 (1979-03-01), Noguhi
patent: 4350905 (1982-09-01), Sato
patent: 4479126 (1984-10-01), Higuchi et al.
patent: 4642798 (1987-02-01), Rao
patent: 4661724 (1987-04-01), Remington et al.
patent: 4724341 (1988-02-01), Yamada et al.
patent: 4757218 (1988-07-01), Nawaki

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