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Difference between dual precision and single precision ICs

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asifzaheer

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Hello frends.
i m facing a problem...currently i m working on an "infrared based burglar alarm" which has ic CD4538 it acts as a dual precision monostable multivibrator.bt i know that i can build this circuit on 555 also, using it as monostable multivibrator.
so i want to know what is the real diffrence here,and also what is dual precision and single precision IC

thanx
 

Single = contains one precision monostable
Dual = two precision monostables.

It doesn't mean "more precision" it simply means more in one package.
You can probably redesign to use any kind of monostable, provided the supply voltage, current demands and timing intervals can be met.

Brian.
 

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