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  2. Diode logic - Wikipedia

    en.wikipedia.org/wiki/Diode_logic

    A voltage source's output resistance and the subsequent gate's pull-up/down resistor form a voltage divider that weakens voltage levels. This decreases high voltages in OR gates and increases low voltages in AND gates. Thus the feasible amount of cascading is limited by the value of V F and the high-low voltage difference. With special designs ...

  3. Wired logic connection - Wikipedia

    en.wikipedia.org/wiki/Wired_logic_connection

    See also: Diode logic § Active-high AND logic gate Open-collector buffers connected as wired AND.. The wired AND connection is a form of AND gate.When using open collector or similar outputs (which can be identified by the ⎐ symbol in schematics), wired AND only requires a pull up resistor on the shared output wire.

  4. AND gate - Wikipedia

    en.wikipedia.org/wiki/AND_gate

    The AND gate is a basic digital logic gate that implements the logical conjunction (∧) from mathematical logic – AND gates behave according to their truth table. A HIGH output (1) results only if all the inputs to the AND gate are HIGH (1). If all of the inputs to the AND gate are not HIGH, a LOW (0) is outputted.

  5. List of 4000-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_4000-series...

    The following is a list of CMOS 4000-series digital logic integrated circuits.In 1968, the original 4000-series was introduced by RCA.Although more recent parts are considerably faster, the 4000 devices operate over a wide power supply range (3V to 18V recommended range for "B" series) and are well suited to unregulated battery powered applications and interfacing with sensitive analogue ...

  6. List of 7400-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_7400-series...

    dual 4-input NOR gate with strobe, one gate expandable with 74x60 16 SN7423: 74x24 4 quad 2-input NAND gate Schmitt trigger 14 SN74LS24: 74x25 2 dual 4-input NOR gate with strobe 14 SN7425: 74x26 4 quad 2-input NAND gate open-collector 15 V 14 SN74LS26: 74x27 3 triple 3-input NOR gate 14 SN74LS27: 74x28 4 quad 2-input NOR gate driver N O =30 14 ...

  7. Logic family - Wikipedia

    en.wikipedia.org/wiki/Logic_family

    Before the widespread use of integrated circuits, various solid-state and vacuum-tube logic systems were used but these were never as standardized and interoperable as the integrated-circuit devices. The most common logic family in modern semiconductor devices is metal–oxide–semiconductor (MOS) logic, due to low power consumption, small ...

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