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'[PIC]: Equivalent to F74?'
2001\08\30@074134 by SkinTech

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Re-posted with correct tag, sorry...


Hello to all,

I have this project developed with a 16F74. Now that I go for a small
series, could I use the 16C74(A), which I think is more easily available
and
maybe cheaper. As far as I can see on the data sheets they are functionally
equivalent. The F74 data sheet also mentions 'pin-compatible to C74A', but
I
just want to make sure they are functionally equivalent as well.
Any inputs highly appreciated!

Jan Didden.

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2001\08\30@134213 by iklas Wennerstrand

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16F74 is a FLASH part that can be reprogram with your programmer.
16C74 is a OTP One Time Programable part.
Regards
Niklas


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Från: pic microcontroller discussion list [spam_OUTPICLISTTakeThisOuTspamMITVMA.MIT.EDU]
För SkinTech
Skickat:        den 30 augusti 2001 13:47
Till:   .....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU
Ämne: [PIC]:   Equivalent to F74?

Re-posted with correct tag, sorry...


Hello to all,

I have this project developed with a 16F74. Now that I go for a small
series, could I use the 16C74(A), which I think is more easily available
and
maybe cheaper. As far as I can see on the data sheets they are functionally
equivalent. The F74 data sheet also mentions 'pin-compatible to C74A', but
I
just want to make sure they are functionally equivalent as well.
Any inputs highly appreciated!

Jan Didden.

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2001\08\30@140401 by Ian Jordan

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I think he was saying that now that his code is stable, and he wants to do
production parts, can he replace the 16C74 for the 16F74 that he was doing
prototyping with? He no longer needs to re-burn code, but he does need to be
sure that they are electrically and functionally compatible, minus the
re-programmability functionality.

--Ian

{Original Message removed}

2001\08\30@144805 by SkinTech

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----- Original Message -----
From: "Ian Jordan" <ianspamKILLspamTWINGLES.COM>
To: <.....PICLISTKILLspamspam.....MITVMA.MIT.EDU>
Sent: Thursday, August 30, 2001 8:05 PM
Subject: Re: [PIC]: Equivalent to F74?


> I think he was saying that now that his code is stable, and he wants to do
> production parts, can he replace the 16C74 for the 16F74 that he was doing
> prototyping with? He no longer needs to re-burn code, but he does need to
be
> sure that they are electrically and functionally compatible, minus the
> re-programmability functionality.
>
> --Ian
>
Ian, that's correct. I had another reply suggesting I look at the F874.
Superficially they all look the same scanning the datasheets, but there is a
lot of info in those and it is easy to miss a crucial note or two. I looked
all over the microchip website, but apparently there is no page listing
compatibilities etc, which surprises me, I mean with the flurry of devices
they should at least provide some compatibility/replacement guide.

Cheers, Jan Didden

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