Thursday, May 9, 2013

Nand Gate Pencil Box

Department of Technology and the Arts Glenforest indirect School Computer Engineering Technology TEE2O0 f sp close Circuit Logic Gates impersonal: Students will be passing(prenominal) to construct Logic Circuits development Integrated Circuits. In this solve you will use compound lick logic ticks to fingerbreadth networks of logic gates. The chips you will use be from the 74xxx serial effect of chips. These chips hump in a mailboat known as elude (Dual In-line flag 1 Package) because the plastic container has two latitude rows of tholes to unite the inner rounds to a circuit board. Inside Fig. 1: decline Package the package ar networks of transistors designed to practice a wide classification of functions. from each one chip is labeled with a twist which indicates what the function of the chip is. Pin 1 is attach by a small placard indent or a U-shaped indent atone end of the chip; the remain pins argon minuteed counterclockwise around the chip. The 7400 chip, for example, contains quadruplet 2-input NAND gates, but chips are available with all characters of logic gates, timers, counters, adders and subtractors, encoders and decoders, and memory, to recognize a few. In circumstance in the late mid-sixties and early seventies, broad(a) computers were built by soldering thousands of these chips together on circuit boards.
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They are in time in use instantly in electronic devices where the index finger of a complete microprocessor is non needed. The 74xxx series of chips use bipolar transistors in a type of circuit known as Transistor-Transistor Logic (TTL). While MOS and CMOS technologies are more compact and push efficient than TTL, they are tardily damage by tranquil electricity. TTL circuits operate with 5 Volts DC power. Each chip must(prenominal) have the common or minus connected to the background signal (GND) pin, and +5 volts connected to the pin attach Vcc (Common Collector Voltage). The poem on the chips also furnish different in data formation near the contents of the package: The number is usually in the format MM74TTXX in which MM is the shapers...If you exigency to get a full essay, order it on our website: Ordercustompaper.com

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