Electronic digital logic circuitry – Function of and – or – nand – nor – or not – Field-effect transistor
Patent
1996-12-10
2000-08-01
Tokar, Michael
Electronic digital logic circuitry
Function of and, or, nand, nor, or not
Field-effect transistor
326 21, 326121, H03K 19094, H03K 1920
Patent
active
060972211
ABSTRACT:
A semiconductor integrated circuit is constructed with composite pass-transistor logic circuits serving as elementary circuit units each including a plurality of pass-transistor logic trees and a multiple-input logic gate. A wide variety of logical operations, even complex opearations, can be efficiently expressed using the composite pass-transistor logic circuit, and the resultant logic circuit can operate at a high speed. Thus, the semiconductor integrated circuit of the present invention can realize various logic functions required for various users in an efficient fashion. The present invention is particularly useful when applied to a field-programmable gate array integrated circuit, since complex logical operations can be expressed in a simple and efficient fashion by the composite pass-transistor logic circuits. The gate array integrated circuit obtained in accordance with the present invention can operate at a high speed with low power consumption. The present invention also discloses a basic cell suitable for use in an integrated circuit in the form of a gate array, and more particularly, a programmable logic block for use in a field programmable gate array integrated circuit.
REFERENCES:
patent: 3739193 (1973-06-01), Pryor
patent: 4541067 (1985-09-01), Whitaker
patent: 4559609 (1985-12-01), Robinson, Jr. et al.
patent: 4595845 (1986-06-01), Briggs
patent: 4620117 (1986-10-01), Fang
patent: 4633220 (1986-12-01), Burgess
patent: 4870302 (1989-09-01), Freeman
patent: 5040139 (1991-08-01), Tran
patent: 5122685 (1992-06-01), Chan et al.
patent: 5162666 (1992-11-01), Tran
patent: 5200907 (1993-04-01), Tran
patent: 5367208 (1994-11-01), El Gamal et al.
patent: 5677641 (1997-10-01), Nishio et al.
CMOS3 Cell Library, Addison-Wesley VLSI Systems Series, Edited by Dennis V. Heinbuch, pp. 137-143, Copyright .COPYRGT. 1988.
"A 3.8-ns CMOS 16.times.16-b Multiplier Using Complementary Pass-Transistor Logic," Kazuo Yano et al., IEEE Journal of Solid-State Circuits, vol. 25, No. 2, Apr. 1990, pp. 388-395.
"Pass-transistor logic design," Waleed Al-Assadi et al., Int. J. Electronics, 1991, vol. 70, No. 4, pp. 739-749.
"A 1.5ns 32b CMOS ALU in Double Pass-Transistor Logic," Makoto Suzuki et al., ISSCC 93/Session 5/Microprocessors/Paper TA 5.4, Feb. 25, 1993, pp. 90-91.
"A High Speed, Low Power, Swing Restored Pass-Transistor Logic Based Multiply and Accumulate Circuit for Multimedia Applications," Akilesh Parameswar et al., IEEE 1994 Custom Integrated Circuits Conference, pp. 278-281.
"Lean Integration: Achieving a Quantum Leap in Performance and Cost of Logic LSIs," Kazuo Yano et al., IEEE 1994 Custom Integrated Circuits Conference, pp. 603-606.
"Pass Transistor Based Gate Array Architecture," Yasuhiko Sasaki et al., 1995 Symposium on VLSI Circuits Digest of Technical Papers, pp. 123-124.
"Top-Down Pass-Transistor Logic Design," Kazuo Yano et al., IEEE Journal of Solid-State Circuits, vol. 31, No. 6, Jun. 1996, pp. 792-803.
"Low-Power Logic Styles: CMOS vs CPL," Reto Zimmermann et al., Proceedings of the 22.sup.nd European Solid-State Circuits Conference (ESSCIRC '96), Neuchatel, Switzerland ,Sep. 17-19, 1996, pp. 112-115.
Kawasaki Steel Corporation
Roseen Richard
Tokar Michael
LandOfFree
Semiconductor integrated circuit capable of realizing logic func does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor integrated circuit capable of realizing logic func, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor integrated circuit capable of realizing logic func will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-667566