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'Prototype with 74JW , program with 64A'
1999\07\21@074704 by fernteix

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Hey

I finished a program that is working in a prototype circuit with a PIC 16C
74B  JW.
As the program uses only I/O , not A/D  I intend to program a PIC 16C 64A
20/P.
Is enough to change in the (Promate II device Programmer) window of MPLAB
4.0 from
74B to 64A ?
Or I need to return to Basic compiler and erase the line ADCON1 = 7 that
disconnect the AD inputs of the 74?
Or compile again for 64A ?

I would appreciate your help to understand this general question.
Thanks

Fernando Teixeira

1999\07\21@123028 by Bob Blick

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> I finished a program that is working in a prototype circuit with a PIC 16C
> 74B  JW.
> As the program uses only I/O , not A/D  I intend to program a PIC 16C 64A
> 20/P.
> Is enough to change in the (Promate II device Programmer) window of MPLAB
> 4.0 from
> 74B to 64A ?

I've done it using a '65 instead of a '74 no problem.

Cheers,
Bob

1999\07\21@213329 by Jim Robertson

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At 09:29 21/07/99 -0700, you wrote:
>> I finished a program that is working in a prototype circuit with a PIC 16C
>> 74B  JW.
>> As the program uses only I/O , not A/D  I intend to program a PIC 16C 64A
>> 20/P.
>> Is enough to change in the (Promate II device Programmer) window of MPLAB
>> 4.0 from
>> 74B to 64A ?
>
>I've done it using a '65 instead of a '74 no problem.
>
>Cheers,
>Bob


I would compare the price of a '64A against the price of a '65B. You might be
surprised! On price alone the 65B may be the best option.

The 65B is a 74B without the A/D. A 64A is not quite the same as there
are differences in other peripherials and, of course the 64A is only 2k as
opposed to the 4k 74A.

But if the program fits and you are not using other peripherials then the 64A
is entirely suitable as a replacement.

Jim


________________________________________
Email: spam_OUTnewfoundTakeThisOuTspampipeline.com.au
http://www.new-elect.com
MPLAB compatible PIC programmers and firmware
upgrades for many programmers.
________________________________________

1999\07\21@215746 by Tony Nixon

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> I would compare the price of a '64A against the price of a '65B. You might be
> surprised! On price alone the 65B may be the best option.

The last time I checked, the 74 is 'cheaper' even though it has the A2D.

--
Best regards

Tony

'The Engine' - Design your own programmer.

http://www.picnpoke.com
Email .....picnpokeKILLspamspam@spam@cdi.com.au

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