hello,

i recently got an atmel micro-controller. i downloaded its datasheet
from the internet...to my horror i found out that the pin
configuration of each of the controller change with their package
specifications. so i scanned my controller to find package number
which was unsuccessful.

the bullshit printed on my micro-controller is:

on the top side:
at89c51ed2 -im
0631-6f5912

at the bottom side:
PH
G6F5912


can somebody pls help me out identify which damn package is this n
where could i find its pin configurations and its datasheet

"freeze" <amithbnair@gmail.com> wrote in message
news:10b15ab5-66ac-4077-bf75-0a506954d1a9@t1g2000pra.googlegroups.com...
> hello,
>
> i recently got an atmel micro-controller. i downloaded its datasheet
> from the internet...to my horror i found out that the pin
> configuration of each of the controller change with their package
> specifications. so i scanned my controller to find package number
> which was unsuccessful.
>
> the bullshit printed on my micro-controller is:
>
> on the top side:
> at89c51ed2 -im
> 0631-6f5912
>
> at the bottom side:
> PH
> G6F5912
>
>
> can somebody pls help me out identify which damn package is this n
> where could i find its pin configurations and its datasheet


The "bullshit" printed on the chip got you to the datasheet. The information
you seek is in that datasheet.

Look near the end just after Ordering Information. There are graphics
showing the outline of each chip. I'm assuming you have a 44-pin chip
because, if you have a 64-pin or 68-pin chip, the package type is obvious.
For the 44-pin chip, the main difference between PLCC and VQFP is in how the
pins look.

You'll run into many package types in addition to these. It is worthwhile to
know that most datasheets show product outlines.

Take a deep breath. If this little bump in the road is enough to set you
off, your learning experience over the next several months is going to be
really stressful.

Good luck,
Richard

but the chip that i have is a 40 pin one.....tats were i really am
pissed off.....

but its a 40 pin controller ic....

"freeze" <amithbnair@gmail.com> wrote in message
news:cf8a8d53-98da-424b-8cfb-d438048018be@i7g2000prf.googlegroups.com...
> but its a 40 pin controller ic....

It's obsolete, which is probably why you can't find the correct datasheet on
the Atmel site.

Try a Google search for:
at89c51ed2 40 pin

Lots of hits

Again, good luck.

Richard

On Thu, 17 Jan 2008 05:02:00 -0800 (PST), freeze
<amithbnair@gmail.com> wrote:

>but its a 40 pin controller ic....

Strange - Digikey sells them in a DIP-40 package, but the datasheet
they show only lists 44 and 64 pin packages. Atmel's website also
shows only the 44 and 64 pin packages.

I suggest you write Atmel customer support to see if they can provide
the pinout for the DIP 40 package.
http://support.atmel.no/bin/customer


--
Peter Bennett, VE7CEI
peterbb4 (at) interchange.ubc.ca
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca

"freeze" <amithbnair@gmail.com> wrote in message
news:10b15ab5-66ac-4077-bf75-0a506954d1a9@t1g2000pra.googlegroups.com...
>
> on the top side:
> at89c51ed2 -im
> 0631-6f5912
>
if your searches do not work try this link

http://pdf1.alldatasheet.com/datasheet- ... 51ED2.html

and click on button that says to view datasheet click here
well you know how it works
HTH,
robb

freeze wrote:

> on the top side:
> at89c51ed2 -im

Yes it's an 89C51 (ED2).

What's the problem ?

Graham

freeze wrote:

> can somebody pls help me out identify which damn package is

You can't tell by looking at it ?


> this n where could i find its pin configurations and its datasheet

From the Atmel website of course.

Aren't you capable of thinking for yourself or do you expect to be
spoon-fed your entire life ??

Graham

freeze wrote:

> but the chip that i have is a 40 pin one.....tats were i really am
> pissed off.....

MOST 8051's typically come in a 40 pin DIL option.

Graham

Peter Bennett wrote:

> freeze <amithbnair@gmail.com> wrote:
>
> >but its a 40 pin controller ic....
>
> Strange - Digikey sells them in a DIP-40 package, but the datasheet
> they show only lists 44 and 64 pin packages. Atmel's website also
> shows only the 44 and 64 pin packages.

They may have dropped 40 pin due to lack of demand. An older data sheet
might cover that. As would an email to Atmel.

They certainly DID make it in 40 pin since I'm sure I've used some.

Graham