Circuit including at least two MTL semi-conducting devices showi

Details Circuit including at least two MTL semi-conducting devices showi Circuit including at least two MTL semi-conducting devices showi

1980-09-12

1982-09-07

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307291, 307303, 357 92, H03K 3286, G11C 1928

Patent

active

043485952

ABSTRACT:
The basic circuit (FIG. 2) includes an input device (A) driving two output transistors (B) and (C) which have different rise times [injection currents (I2, I3) or the input characteristics of the transistors (capacitors C2, C3) may be adjusted]. In a preferred embodiment (FIG. 3) differentiation is ensured by coupling a control transistor D to one of the output transistors (B) through a PNP transistor. If transistors (B) and (C) are cross-coupled, the circuit which is achieved is a bistable device. FIG. 4 shows the layout of the circuit of FIG. 3. Various applications in the synchronous logic circuit domain are described: T flip-flop (FIG. 8) and shift register (FIG. 9).

REFERENCES:
patent: 3643231 (1972-02-01), Lohrey et al.
patent: 3736477 (1973-05-01), Berger et al.
patent: 3815106 (1974-06-01), Wiedmann
patent: 3816758 (1974-06-01), Berger et al.
patent: 3886531 (1975-05-01), McNeill
patent: 3993918 (1976-11-01), Sinclair
patent: 4021786 (1977-05-01), Peterson
patent: 4090255 (1978-05-01), Berger et al.
patent: 4197470 (1980-04-01), Banzhaf
"I.sup.2 L/MTL Storage Cell Layout" by H. H. Berger et al., IBM TDB, vol. 22, No. 10, Mar. 1980, pp 4604-4605.
"MTL Storage Cell" by S. K. Wiedmann, IBM TDB, vol. 21, No. 1, Jun. 1978, pp. 231-232.
"Merged-Transistor Logic (MTL)-A Low-Cost Bipolar Logic Concept" by H. H. Berger et al., IEEE Journal of Solid-State Circuits, vol. SC-7, No. 5, Oct. 1972, pp. 340-346.
"Intebrated Injection Logic: A New Approach to LSI" by K. Hart et al., IEEE Journal of Solid-State Circuits, vol. SC-7, No. 5, Oct. 1972, pp. 346-351.
"I.sup.2 L Takes Bipolar Integration a Significant Step Forward" by R. L. Horton et al., Electronics, Feb. 6, 1975, pp. 83-90.
"I.sup.2 L Puts It All Together for 10-bit a-d Converter Chip" by P. Brokaw, Electronics Apr. 13, 1978, pp. 99-105.
"Integrated Injection Logic Shaping Up As Strong Bipolar Challenge to MOS", Electronic Design 6, Mar. 15, 1974, pp. 28 and 30.

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