page_title: OR gate
section_title: Wired-OR
hierarchical_section_title: OR gate / Wired-OR
caption_attribution_description: English: Wired Or Gate
context_page_description: The OR gate is a digital logic gate that implements logical disjunction – it behaves according to the adjacent truth table. A HIGH output results if one or both the inputs to the gate are HIGH. If neither input is high, a LOW output results. In another sense, the function of OR effectively finds the maximum between two binary digits, just as the complementary AND function finds the minimum.
context_section_description: With active low open collector logic outputs, as used for control signals in many circuits, an OR function can be produced by wiring together several outputs. This arrangement is called a wired OR. This implementation of an OR function typically is also found in integrated circuits of N or P-type only transistor processes.
caption: Wired OR gate using open-collector NOR gates
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