Title :
Systematic design of D flip-flops using two state variables
Author :
Okugawa, S. ; Inoue, Naoko
Author_Institution :
Kyoto Sangyo University, Department of Computer Science, Kyoto, Japan
Abstract :
Starting from the primitive flow table of D flip-flops and applying the general theory of asynchronous circuits, we show that the edge-triggered D flip-flop in widespread use is obtained using two state variables and hence free from so-called input propagation hazards and state propagation hazards.
Keywords :
flip-flops; hazards and race conditions; logic design; sequential circuits; D-type; edge triggered; flip-flops; hazard-free operation; input propagation hazards; logic design; primitive flow table; sequential circuits; state propagation hazards; two state variables;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870642
