Simple PIC question

[Marlowe]

and also maybe also a stupid question ... what is the difference between a
PIC
chip (such as a 16F84) and the "A" version (such as a 16F84A) of that same
chip???

 

[John Popelish]

Marlowe wrote:

and also maybe also a stupid question ... what is the difference between a
PIC
chip (such as a 16F84) and the "A" version (such as a 16F84A) of that same
chip???

I assume that it is similar to the A or B version of many other
chips. The final letter represents a sort of parts with better
specifications than the unsuffixed part. You would have to download
and compare the data sheet for both versions to verify this.

--
John Popelish

 

[Byron A Jeff]

In article <ecRMc.15543$Qu5.3821@newsread2.news.pas.earthlink.net>,
Marlowe <MarlowedcNYET@earthlink.net> wrote:
- and also maybe also a stupid question ... what is the difference between a
- PIC
- chip (such as a 16F84) and the "A" version (such as a 16F84A) of that same
- chip???

Different die. Updated functionality. Generally the A part comes later and is
cheaper than the original when it comes to PICs.

Also as an aside: 16F84 and 16F84A parts are virtually obsolete. You probably
came across one of the million 16F84[A] pages that exists out there. Microchip
is a fast mover and they have much much much much (can't say enough) much
better and cheaper parts now. I wrote a page on the subject here:

http://www.finitesite.com/d3jsys/16F88.html

Hope this helps,

BAJ

 

[petrus bitbyter]

"Marlowe" <MarlowedcNYET@earthlink.net> schreef in bericht
news:ecRMc.15543$Qu5.3821@newsread2.news.pas.earthlink.net...

and also maybe also a stupid question ... what is the difference between
a
PIC
chip (such as a 16F84) and the "A" version (such as a 16F84A) of that same
chip???

They differ mainly in electrical specifications especially the programming
prescription. They are both obsolete now. Newer types are better and
cheaper.

petrus bitbyter


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[Joe McElvenney]

Hi,

In article <ecRMc.15543$Qu5.3821@newsread2.news.pas.earthlink.net>, Marlowe
wrote:

and also maybe also a stupid question ... what is the difference between a
PIC chip (such as a 16F84) and the "A" version (such as a 16F84A) of that
same chip???

The answer is to be found here -

http://ww1.microchip.com/downloads/en/DeviceDoc/30072b.pdf


Cheers - Joe

 

[Sergio Masci]

Marlowe <MarlowedcNYET@earthlink.net> wrote in message
news:ecRMc.15543$Qu5.3821@newsread2.news.pas.earthlink.net...

and also maybe also a stupid question ... what is the difference between
a
PIC
chip (such as a 16F84) and the "A" version (such as a 16F84A) of that same
chip???

I answered this question posted in a different newsgroup.