CD4029 Up and Down Counter Module for Arduino from BuildCircuit on Tindie
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GitHub - dmezh/cd4029-logisim: Logisim-evolution library model for CMOS CD4029 counter.
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5Pc CD4029 - Presettable Up/Down Counter CMOS IC with Free Base | Precise Counting and Control | Versatile Applications | Reliable Performance by TPS : Amazon.in: Electronics