Title
Analysis Of Path Delay Fault Testability For Two-Rail Logic Circuits
Abstract
The importance of redundant technologies for improving dependability and delay fault testability are growing. This paper presents properties of a class of redundant technologies, namely two-rail logic, and analyzes testability of path delay faults Occurring on two-rail logic circuits. The paper reveals the following characteristics of two-rail logic circuits: While the number of paths in two-rail logic circuits is twice that in ordinary single-rail logic circuits, the number of robust testable path delay faults in two-rail logic circuits is twice or more that in the single-rail logic circuits. This suggests two-rail logic circuits are more testable than ordinary single-rail logic circuits. On two-rail logic circuits, there may be some robust testable path delay faults that are functional un-sensitizable for ally input vectors consisting of codewords of two-rail codes, i.e. for any input vectors that can occur during fault-free operation. Even if such faults occur, the circuits are still strongly fault secure for unidirectional stuck-at faults as well as they work correctly.
Year
DOI
Venue
2009
10.1587/transfun.E92.A.2295
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
Keywords
Field
DocType
two-rail logic circuit, path delay fault, testability, functional sensitizability, over-testing
Digital electronics,Sequential logic,Pass transistor logic,Logic optimization,Theoretical computer science,Resistor–transistor logic,Logic level,Logic family,Mathematics,Asynchronous circuit
Journal
Volume
Issue
ISSN
E92A
9
0916-8508
Citations 
PageRank 
References 
0
0.34
6
Authors
2
Name
Order
Citations
PageRank
Kazuteru Namba111427.93
Hideo Ito210017.45