enable input counter
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6 Way 6 Channel 10A 5VDC Relay Module with Opto Isolated High & Low Trigger With Screw Terminal
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The 7490 is a Decade Counter in a DIP-16 package, providing a divide-by-10 function with separate divide-by-2 and divide-by-5 sections. Ideal for use in digital clocks, frequency dividers, and mod-10 counters, this TTL-compatible IC offers reliable performance in timing and counting applications.
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