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PICList Thread
'PIC16F877A and 18F series.'
2006\01\05@133331 by Jon Philpott

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Hi all,

I've been using a PIC16F877A as the mcu in my sumovore robot
(http://www.solarbotics.com) and I'm wondering if there is a pin compatible
40pin 18F mcu that I could also use as I'm interested in getting more
familiar with the 18F series.

Thanks,
Jon Philpott.


2006\01\05@183623 by Robert Rolf

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I haven't looked, but you could just make up a board that mapped
the 877A pins to whatever 18F MCU you like.

Robert

Jon Philpott wrote:

{Quote hidden}

2006\01\05@184716 by Jon Philpott

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Robert Rolf wrote:

>I haven't looked, but you could just make up a board that mapped
>the 877A pins to whatever 18F MCU you like.
>
>Robert
>
>  
>
Thanks,

I did some research myself and found that the 18F4220 seems to be
pin-for-pin the same as the 16F877A

2006\01\05@213931 by Robert Rolf

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Made me look.

You'll want the 18F4420 to get as much program space as the 16F877 has.
Or the 4620 to quadruple it (and more RAM & EEPROM).

For a development work, get the most resources you can, then
pick the PIC that fits your final result (and perhaps recode for
resource saving) if cost becomes an issue. The 18F4620 seems to be
the biggest 'standard' pic in that class.

Robert

Jon Philpott wrote:
{Quote hidden}

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