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The two-input version implements logical equality, behaving according to the truth table to the right, and hence the gate is sometimes called an "equivalence gate". A high output (1) results if both of the inputs to the gate are the same. If one but not both inputs are high (1), a low output (0) results.
[6] [page needed] The headings in the following table are: V cc – power-supply voltage; t pd – maximum gate delay; I OL – maximum output current at low level; I OH – maximum output current at high level; t pd, I OL, and I OH apply to most gates in a given family. Driver or buffer gates have higher output currents.
quad 2-input XNOR gate: open-collector 14 SN74LS266: 74x268 6 hex D-type latches, common output control, common enable three-state 16 SN74S268: 74x269 1 8-bit bidirectional binary counter 24 MC74F269: 74x270 1 2048-bit ROM (512x4) open-collector 16 SN74S270: 74x271 1 2048-bit ROM (256x8) open-collector 20 SN74S271: 74x273 1 8-bit register ...
A standard LFSR has a single XOR or XNOR gate, where the input of the gate is connected to several "taps" and the output is connected to the input of the first flip-flop. A MISR has the same structure, but the input to every flip-flop is fed through an XOR/XNOR gate. For example, a 4-bit MISR has a 4-bit parallel output and a 4-bit parallel input.
An XNOR gate is a basic comparator, because its output is "1" only if its two input bits are equal. The analog equivalent of digital comparator is the voltage comparator . Many microcontrollers have analog comparators on some of their inputs that can be read or trigger an interrupt .
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 ...
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.
The NOR gate is a digital logic gate that implements logical NOR - it behaves according to the truth table to the right. A HIGH output (1) results if both the inputs to the gate are LOW (0); if one or both input is HIGH (1), a LOW output (0) results. NOR is the result of the negation of the OR operator.