Glenforest Secondary School
Computer Engineering Technology
TEE2O0
compound Circuit Logic Gates
Objective: Students will be satisfactory to construct Logic Circuits using Integrated Circuits.
In this exercise you will use integrated lick logic chips to digit networks of logic gates. The chips you will use be from the 74xxx serial publication of chips. These chips hump in a package known as elude (Dual In-line Pin 1 Package) because the plastic container has two parallel rows of pins to unite the inner rounds to a circuit board. Inside Fig. 1: decline Package the package are networks of transistors designed to perform a wide variety of functions. from each one chip is labeled with a number which indicates what the function of the chip is. Pin 1 is attach by a small circular indent or a U-shaped indent atone end of the chip; the remain pins are numbered counterclockwise around the chip. The 7400 chip, for example, contains four 2-input NAND gates, but chips are available with all types of logic gates, timers, counters, adders and subtractors, encoders and decoders, and memory, to name a few. In fact in the late sixties and early seventies, broad(a) computers were built by soldering thousands of these chips together on circuit boards.
They are still in use today in electronic devices where the power of a complete microprocessor is not 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 energy efficient than TTL, they are easily damage by static electricity. TTL circuits operate with 5 Volts DC power. Each chip must have the common or minus connected to the Ground (GND) pin, and +5 volts connected to the pin attach Vcc (Common Collector Voltage). The numbers on the chips also provide different information about the contents of the package: The number is usually in the format MM74TTXX in which MM is the Manufacturers...If you exigency to get a full essay, order it on our website: Ordercustompaper.com
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