Homework SourseFor the below circuit a Construct a truth table fault is pre
For the below circuit. (a) Construct a truth table fault is present table sho (b) Construct a fault table (c) Descn Construct a fauConsider fan out as one wire) Describe a fault detection experiment tion experiment for the circuit using a minimum set of tests. ABC ABC
Solution
TRUTH TABLE SHOWING THE FAULT FREE OUTPUT
The following Truth Table illustrates columns listing all possible single stuck -at faults and rows indicating all input patterns. In other words, a line stuck at 0 - line fault or 1 - line fault
Logic circuits are tested by applying a sequence of input patterns that produce erroneous responses when faults are present and then comparing the responses with the correct (expected) ones
| A | B | C | F |
| 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 0 |
| 0 | 1 | 0 | 0 |
| 0 | 1 | 1 | 1 |
| 1 | 0 | 0 | 1 |
| 1 | 0 | 1 | 1 |
| 1 | 1 | 0 | 0 |
| 1 | 1 | 1 | 1 |
