Cell based ALU with tree structured carry, inverting logic and b

Details Cell based ALU with tree structured carry, inverting logic and b Cell based ALU with tree structured carry, inverting logic and b

1987-10-07

1989-11-21

Wan, Gene

Boots, shoes, and leggings

364787, G06F 750

Patent

active

048826987

ABSTRACT:
An ALU comprising a tree-based carry structure, wherein the maximum fanout from any gate in the carry structure is three. When calculating optimized fanout, it is necessary to consider input capacitance to the following stage. In minimizing propagation delay, it is necessary to consider loading and the number of stages. It has been recognized that optimum fanout of results in optimized propagation through the ALU, thus fanout of three is the closest whole number. A cell has been designed which includes the necessary and sufficient circuitry for building multicell ALU's in a highly optimized structure. The cell provides individually accessible components and dedicated components for optimum layout in the end product.

REFERENCES:
patent: 4623981 (1986-11-01), Wolrich et al.

Affiliated with

Also associated with

Rating

Cell based ALU with tree structured carry, inverting logic and b does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cell based ALU with tree structured carry, inverting logic and b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cell based ALU with tree structured carry, inverting logic and b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1429837