brief introduction： An OR gate is a logic gate in digital logic, which is used in TTL and CMOS integrated circuit logic series. The function of an OR gate is to get the maximum of two binary numbers, while the function of an AND gate is to get the minimum of two binary numbers.4 Input or gate chip: 74LS20, 74LS21, 74LS22;3 input or gate chip: 74LS10, 74LS11, 74LS12, 74LS15;Two input or gate chips: 74LS00, 74LS01, 74LS02, 74LS03.

OR Gates

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