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  2. 7400-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/7400-series_integrated...

    The 74LS family of ICs is a lower-power version of the 74S family, with slightly higher speed but lower power dissipation than the original 74 family; it became the most popular variant once it was widely available. Many 74LS ICs can be found in microcomputers and digital consumer electronics manufactured in the 1980s and early 1990s.

  3. List of 7400-series integrated circuits - Wikipedia

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

    The following is a list of 7400-series digital logic integrated circuits.In the mid-1960s, the original 7400-series integrated circuits were introduced by Texas Instruments with the prefix "SN" to create the name SN74xx.

  4. Logic family - Wikipedia

    en.wikipedia.org/wiki/Logic_family

    In computer engineering, a logic family is one of two related concepts: . A logic family of monolithic digital integrated circuit devices is a group of electronic logic gates constructed using one of several different designs, usually with compatible logic levels and power supply characteristics within a family.

  5. List of free electronics circuit simulators - Wikipedia

    en.wikipedia.org/wiki/List_of_free_electronics...

    List of free analog and digital electronic circuit simulators, available for Windows, macOS, Linux, and comparing against UC Berkeley SPICE.The following table is split into two groups based on whether it has a graphical visual interface or not.

  6. 74181 - Wikipedia

    en.wikipedia.org/wiki/74181

    The combinational logic circuitry of the 74181 integrated circuit. The 74181 is a 7400 series medium-scale integration (MSI) TTL integrated circuit, containing the equivalent of 75 logic gates [3] and most commonly packaged as a 24-pin DIP.

  7. Logic level - Wikipedia

    en.wikipedia.org/wiki/Logic_level

    Diagram of RS-232 signaling an uppercase "K" character as seen when probed by an oscilloscope.The RS-232 electric signaling uses active low (negative logic). The digital data representing "K" (0x4b) as 7-bit ASCII is framed as "7E1" with 1 start bit, 7 data bits, even parity, 1 stop bit.

  8. Industrial control system - Wikipedia

    en.wikipedia.org/wiki/Industrial_control_system

    An industrial control system (ICS) is an electronic control system and associated instrumentation used for industrial process control.Control systems can range in size from a few modular panel-mounted controllers to large interconnected and interactive distributed control systems (DCSs) with many thousands of field connections.

  9. Transistor–transistor logic - Wikipedia

    en.wikipedia.org/wiki/Transistor–transistor_logic

    Transistor–transistor logic (TTL) is a logic family built from bipolar junction transistors.Its name signifies that transistors perform both the logic function (the first "transistor") and the amplifying function (the second "transistor"), as opposed to earlier resistor–transistor logic (RTL) and diode–transistor logic (DTL).