Logic Families and Their Characteristics

Q1: The problem of interfacing IC logic families that have different supply voltages (VCC's) can be solved by using a:

A level-shifter

B tristate shifter

C decoupling capacitor

D pull-down resistor

ANS:A - level-shifter

Like MAX232 by TEXAS INSTRUMENTS. From CMOS TO TTL logic conversion especially using serial communication interfacing via RS232 standards.



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