Download e-book for kindle: An Introduction to Logic Circuit Testing by Parag K. Lala

By Parag K. Lala

ISBN-10: 1598293508

ISBN-13: 9781598293500

An creation to good judgment Circuit trying out offers an in depth assurance of strategies for try new release and testable layout of electronic digital circuits/systems. the cloth lined within the ebook will be adequate for a path, or a part of a direction, in electronic circuit trying out for senior-level undergraduate and first-year graduate scholars in electric Engineering and desktop technological know-how. The booklet can be a invaluable source for engineers operating within the undefined. This ebook has 4 chapters. bankruptcy 1 bargains with quite a few forms of faults which may happen in very huge scale integration (VLSI)-based electronic circuits. bankruptcy 2 introduces the key suggestions of all attempt iteration suggestions akin to redundancy, fault insurance, sensitization, and backtracking. bankruptcy three introduces the most important ideas of testability, via a few advert hoc design-for-testability ideas that may be used to reinforce testability of combinational circuits. bankruptcy four offers with try new release and reaction assessment suggestions utilized in BIST (built-in self-test) schemes for VLSI chips. desk of Contents: advent / Fault Detection in good judgment Circuits / layout for Testability / integrated Self-Test / References

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A specific set of design rules has been defined to provide level-sensitive logic subsystems with a scannable design that would aid testing: Rule 1. Use only hazard-free polarity-hold latches as memory elements. Rule 2. The latches must be controlled by nonoverlapping clocks. Rule 3. Clock signals must be applied via primary inputs. Rule 4. Clocks may not feed the data inputs to memory elements either directly or through combinational logic. Rule 5. Test sequences must be applied via a primary input.

3: A combinational circuit with line α s-a-1. be set at 0, which also sets G4=1. In order for G6 to be at 1, B must be set at 0; note that G6 cannot be set at 1 by making C=0 because this is inconsistent with the assignment of C in the forward trace phase. Therefore, the test ABCD=0011 detects the fault α s-a-1, since the output f will be 0 for the fault-free circuit and 1 in the presence of the fault. In general, a test pattern generated by the path sensitization method may not be unique. 4 can be detected by ABC=01- or 0-0.

1027−34 (1987). [7] Reddy, S. , C. Li, and S. Patil, “An automatic test pattern generator for the detection of path delay faults,” Proc. IEEE Intl. Conf. CAD, 284−7 (November 1987). [8] Schulz, M. , K. Fuchs, and F. Fink, “Advanced automatic test pattern generation techniques for path delay faults,” Proc. 19th IEEE Intl. Fault-Tolerant Comput. , 44−51 ( June 1989). , Switching and Finite Automata Theory, Chap. 13, McGraw-Hill (1970). [10] Hennie, F. , Finite State Models for Logical Machines, Chap 3, John Wiley (1968).

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An Introduction to Logic Circuit Testing by Parag K. Lala

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