Multicollector transistor logic circuit

Details Multicollector transistor logic circuit Multicollector transistor logic circuit

1978-03-29

1980-05-20

Larkins, William D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307213, 357 36, 357 44, 357 46, 357 92, H01L 2704, H03K 1908

Patent

active

042041309

ABSTRACT:
Disclosed is an integrated transistor logic circuit (ITL) comprising complementary bipolar transistors. A PNP transistor injects current into the base of an NPN transistor when this current is not steered away. The base of the PNP transistor and the emitter of the NPN transistor are connected in common to a fixed source of potential. The collector of the NPN transistor is formed in common with the collector regions of one or more output transistors while the base region of the NPN transistor is formed in common with the base regions of the output transistors. The one or more output transistors are operated in the inverted mode providing an output signal at their respective emitter regions.

REFERENCES:
patent: T957007 (1977-04-01), Jordan et al.
patent: 3312882 (1967-04-01), Pollock
patent: 3795822 (1974-03-01), Skokan
patent: 3816758 (1974-06-01), Berger et al.
Lehning, IEEE J. of Solid State Circuits, vol. SC 9, No. 5, Oct. 1974, pp. 228-233.
Hart et al., Electronics, Oct. 3, 1974, pp. 111-118.
Sylvania Application Note #14, 12/8/67, "Electrical Disposition of Unused SUHL Input.
Hibberd, Integrated Circuits (McGraw-Hill, N.Y., 1969), p. 110.

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