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2. 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.

3. Emitter-coupled logic - Wikipedia

   en.wikipedia.org/wiki/Emitter-coupled_logic

   Motorola ECL 10,000 basic gate circuit diagram from 1972. [1] Note the Q5 and Q6 emitters coupled to the output. In electronics, emitter-coupled logic (ECL) is a high-speed integrated circuit bipolar transistor logic family.

4. Logic gate - Wikipedia

   en.wikipedia.org/wiki/Logic_gate

   A NAND gate is equivalent to an OR gate with negated inputs, and a NOR gate is equivalent to an AND gate with negated inputs. This leads to an alternative set of symbols for basic gates that use the opposite core symbol (AND or OR) but with the inputs and outputs negated. Use of these alternative symbols can make logic circuit diagrams much ...

5. 7400-series integrated circuits - Wikipedia

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

   The first part number in the series, the 7400, is a 14-pin IC containing four two-input NAND gates. Each gate uses two input pins and one output pin, with the remaining two pins being power (+5 V) and ground. This part was made in various through-hole and surface-mount packages, including flat pack and plastic/ceramic dual in-line.

6. Current-mode logic - Wikipedia

   en.wikipedia.org/wiki/Current-mode_logic

   Current mode logic (CML), or source-coupled logic (SCL), is a digital design style used both for logic gates and for board-level digital signaling of digital data.. The basic principle of CML is that current from a constant current generator is steered between two alternate paths depending on whether a logic zero or logic one is being represented.

7. IC layout editor - Wikipedia

   en.wikipedia.org/wiki/IC_layout_editor

   An integrated circuit layout editor or IC layout editor is an electronic design automation software tool that allows a user to digitize the shapes and patterns that form an integrated circuit. Typically the view will include the components (usually as pcells), metal routing tracks, vias and electrical pins.

8. OR gate - Wikipedia

   en.wikipedia.org/wiki/OR_gate

   The standard 4000 series CMOS IC is the 4071, which includes four independent two-input OR gates. The TTL device is the 7432. The TTL device is the 7432. There are many offshoots of the original 7432 OR gate, all having the same pinout but different internal architecture, allowing them to operate in different voltage ranges and/or at higher speeds.

9. Integrated circuit design - Wikipedia

   en.wikipedia.org/wiki/Integrated_circuit_design

   Engineer using an early IC-designing workstation to analyze a section of a circuit design cut on rubylith, circa 1979. Integrated circuit design, semiconductor design, chip design or IC design, is a sub-field of electronics engineering, encompassing the particular logic and circuit design techniques required to design integrated circuits, or ICs