Author Topic: What is the point in buffer chips?  (Read 4093 times)

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Offline hazzer123Topic starter

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What is the point in buffer chips?
« on: January 17, 2008, 07:57:25 AM »
I have seen many circuits which have buffer chips in them like the 74HC244.

I really don't have a clue what these chips do. They seem to have input pins and output pins, and the output pins just mirror the input ones. I get this idea from the top part of THIS PAGE.

Anyone help?
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www.icrobotics.co.uk

Offline Admin

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Re: What is the point in buffer chips?
« Reply #1 on: January 17, 2008, 08:08:43 AM »
A few reasons you'd want to use it.

Basically a buffer keeps one circuit from interfering with another circuit. This eliminates cross talk and electrical noise (which can cause a whole list of potential problems).

Also, sometimes one circuit might send voltages that could damage another circuit, and so a buffer keeps that from happening.

An optical buffer is like the ultimate type.

I've only needed a buffer like once or twice ever . . . I wouldn't worry about it unless you are doing highly sensitive electronics stuff.

Details:
http://en.wikipedia.org/wiki/Buffer_amplifier

Offline rgcustodio

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Re: What is the point in buffer chips?
« Reply #2 on: January 17, 2008, 11:43:39 AM »
Quote
An optical buffer is like the ultimate type.
maybe you're referring to an optoisolator.
The best thing one can do when it's raining is to let it rain. - H. W. Longfellow

understanding is the path to enlightenment

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Re: What is the point in buffer chips?
« Reply #3 on: January 17, 2008, 12:06:27 PM »
ya

(I seem to be having terminology issues lately :P)

 


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