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PICList Thread
'16F84 info and programmer'
1998\01\05@103638 by Charles Laforge

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Hi Guys

With Microchip discontinuing the 16c84 I decided to concentrate my
efforts on the F84.  First things first.... I need to find a circuit for
a low cost (read homemade cheap programmer even a second sememster
college student can afford.... that meens almost free) 16C84 programmer
for either the serial port and the parrallel port.  i have tons of
examples for the 16c84 but none for the one i need.

Is there a beginners F84 page?

Thanks for your help.
Charles



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1998\01\05@110424 by Charles Bennett

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The kit sells for $39.00

http://www.itutech.com/pic-1kit.htm


Note: I haven't done any business with them.  I ran across them in
Circuit Cellar Mag, while looking for a Cheap Pic Programmer myself.


BTW:  Is $39.00 a good price?  I'm an 8031 programmer usually, but want
to procuce some REALLY low cost devices.. so I'm looking into the PIC
series.

Chuck
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1998\01\05@175414 by jrmont

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Charles Laforge wrote:
>
> Hi Guys
>
> With Microchip discontinuing the 16c84 I decided to concentrate my
> efforts on the F84.  First things first.... I need to find a circuit for
> a low cost (read homemade cheap programmer even a second sememster
> college student can afford.... that meens almost free) 16C84 programmer
> for either the serial port and the parrallel port.  i have tons of
> examples for the 16c84 but none for the one i need.
>
> Is there a beginners F84 page?
>
> Thanks for your help.
> Charles
>
> ______________________________________________________
> Get Your Private, Free Email at http://www.hotmail.com


try http://www.ccc.nottingham.ac.uk/~cczsteve/pic84.html for a homemade
one that should work on the C84 and F84 or ITU technologies for a $39
kit, or $15.00 PCB and SW. I think it is http://www.itutech.com

1998\01\06@140807 by Nigel Goodwin

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In message <spam_OUT19980105150837.7574.qmailTakeThisOuTspamhotmail.com>, Charles Laforge
<.....cjoachimKILLspamspam@spam@HOTMAIL.COM> writes
>Hi Guys
>
>With Microchip discontinuing the 16c84 I decided to concentrate my
>efforts on the F84.  First things first.... I need to find a circuit for
>a low cost (read homemade cheap programmer even a second sememster
>college student can afford.... that meens almost free) 16C84 programmer
>for either the serial port and the parrallel port.  i have tons of
>examples for the 16c84 but none for the one i need.

In this months Everyday Practical Electronics (February 98) the magazine
contacted MicroChip's UK office - they deny that the 16C84 is being
deleted, or any other chips in the PIC range. So who knows?.

Anyway, the F84 can be programmed with exactly the same hardware as the
C84, the only differences are minor ones in the programming software -
to do with the Power-Up Timer bit, and the code protection bits. It's
quite possible to program the F84 using the C84 software - with a bit of
thought.

For a good quality programmer try 'http://www.dontronics.com', the
circuit and software can be downloaded, and high quality PCB's are
available. There is various software available, including DOS and
Windows versions which support the 16F84.
--

Nigel.

       /--------------------------------------------------------------\
       | Nigel Goodwin   | Internet : nigelgspamKILLspamlpilsley.demon.co.uk     |
       | Lower Pilsley   | Web Page : http://www.lpilsley.demon.co.uk |
       | Chesterfield    |                                            |
       | England         |                                            |
       \--------------------------------------------------------------/

1998\01\06@162642 by John Payson

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> In this months Everyday Practical Electronics (February 98) the magazine
> contacted MicroChip's UK office - they deny that the 16C84 is being
> deleted, or any other chips in the PIC range. So who knows?.

I doubt that Microchip will be deleting the 16C84 from their product line
any time soon, but since it's more expensive than the 16F84 (which does
basically the same thing) it's quite possible that many distributors like
Digi-Key might cease carrying the part.

Side note: the Texas Instruments 32C052 and 32BC052 are essentially the same
chip, except that the latter will enter a boot-load ROM if the MC/MP pin is
strapped; the former's behavior in that case is undefined.  While the former
(non-bootload) part used to be cheaper, it's now been discontinued except for
special orders.  I would not be at all surprised if the only difference bet-
ween the currently-shipping 32C052's and 32BC052's was the silk screened part
number.  Of course, there are enough differences going from 16C84->16F84 that
MChip can't QUITE do that, but pretty close...

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