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Fundamentals of Digital Electronics

written 3.8 years ago by ravichandranharin967 • 20

modified 3.7 years ago by phenjoisilab • 0

Describe and compare the characteristics of TTL and CMOS Logic families.

digital electronics

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written 3.8 years ago by 19bcs3866 • 10

•   modified 3.8 years ago

DEFINITION:

THE GROUP OF COMPATIBLE DEVICES (INTEGRATED CIRCUITS) WITH THE SAME LOGIC LEVELS AND SUPPLY VOLTAGES ARE CALLED AS A DIGITAL LOGIC FAMILY

CMOS	TTL
Use FETS	Use BJTS
Symmetric Device Sourceand Drain Interchangeable	Non Symmetric Device Non InterchangeableCollector and Ēmmitor
Voltage Controlled Current,Device	Current Controlled Current Device
Very high Input Resistance => Very low power consumptionwhen not being used => Imperative for SmallIntegrated Device	Lower input Resistance
MOSFETS are nonlinear inworking conditions:	BJTS are linear in activeregion, i.e.
$ ID α Vgs^2 $	Ic = a.lb

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