# PIN DIAGRAM OF LOGIC CIRCUITS 4N25 optocoupler pinout, working, examples and datasheet
4N25 belongs to one of the most famous families of optocouplersr optocouplers that have almost similar features are 4N27, 4N27 and4N28 will discuss all these optoisolators in a single article because they have the same function and pin diagram these optocouplers consist of a photodiode and a phototransistor. Gallium arsenide material is used for an infrared light-emitting diode.
XNOR gate - Wikipedia
The XNOR gate (sometimes ENOR, EXNOR or NXOR and pronounced as Exclusive NOR) is a digital logic gate whose function is the logical complement of the exclusive OR gate. 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
555 Timer IC: Introduction, Basics & Working with
May 27, 2020Internal block diagram – Fig. 4: Block Diagram of 555 IC. As shown in figure IC555 includes two comparators, one RS flip-flop and other few discrete components like transistors, resistors etc. the biasing voltage (Vcc) is divided in three parts through voltage divider using same value of resistors R. from these 1/3 Vcc is given to non inverting terminal of trigger comparator and 2/3 Vcc is
How to Read a Schematic - learnkfun
Integrated circuits accomplish such unique tasks, and are so numerous, that they don't really get a unique circuit symbol. Usually, an integrated circuit is represented by a rectangle, with pins extending out of the sides. Each pin should be labeled with both a number, and a function.
AND Gate Circuit Diagram & Working Explanation
Sep 11, 2015AND logic gate is a digital logic gate, designed for arithmetic and logical operations, every electronic student must have studied this gate is his/her career. This gate is mainly used in applications where there is a need for mathematical calculations. So in calculators, computers and manly digital applications use this gate.
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