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Logic chip 4049 inaccurate test

Logic IC 4049 has an inaccurate test. Gate 6 is tested twice with a high logical state ("1").
I propose the following test.
I also do not have this integrated circuit, so the test is theoretical and I cannot verify it.
4049 - Test (Inaccurate).jpg
4049 - Logic Vector.jpg

CD4049UB, CD4050B.pdf (440.62 KB)

4049.lgc (2.11 KB)

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