| 摘要 |
A device for monitoring supply voltage locally on integrated circuits after mounting on electronic component boards (11) includes at least one voltage monitor (31) as well as boundary scan means (36, 36', 37) for reading out the result of the monitoring. The monitor includes an extreme value detector (41), situated at the place on the circuit surface where voltage monitoring is desired and detecting the minimum absolute voltage between a local supply voltage lead and a local ground lead. The minimum value detector comprises one or two FET transistors at most.
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