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  1. CD4073 – An IC with Three AND Gates (3-input) - Build …

    • An AND gatewith three inputs will only give out HIGH if all inputs are HIGH (input 1 AND input 2 AND input 3). You can see the truth table below. See more

    How to Use The Cd4073?

    First of all, you need a power supply voltage of 3 to 15V. Some versions of the chip support up to 20V. Check the datasheet of your version of the chip for exact value… See more

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    CD4073 Example Circuit – Code Lock

    3-input AND gates can for example be used to check for a secret code. In the schematic below, the secret 6-bit code is 101101. The AND gates check if its inputs are “1” (HIGH), so … See more

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    Alternatives and Equivalents For CD4073

    You likely find the 4073 IC marked as CD4073, NTE4073, MC14073, HCF4073, TC4073, or HEF4073. Usually with a few extra characters at the end (Ex: CD4073BE… See more

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