PIC Pinouts for comparison

[tubos]

Does anyone have a link with a page of pinouts of several pics,
to add another way to select pics.

Like I was searching for a small pic that didnt share the same
pins for OSC and ICSP , I had to go trough a bunch of datasheets
to find one.

 

[birdman0_o]

Which OSC: T0, T1, Main Processor?

 

[tubos]

That was an example , i'm just looking for a page with several PIC pinouts

 

[Wond3rboy]

Well generally speaking and talking about DIPS,PDIPS, OSC pins, ICSP are different for 40, 28, 20,18 pins devices. The ICSP pins can be worked out if you are building a programmer target board(for the 28,40 pins and 20,18 pins) but the OSC, TX,RX pins are different.

 

[BeeBop]

Does anyone have a link with a page of pinouts of several pics,
to add another way to select pics.

Like I was searching for a small pic that didnt share the same
pins for OSC and ICSP , I had to go trough a bunch of datasheets
to find one.

Just go to Microchip's web site. Not sure you will get pin to pin comparisons but it seems a good place to start:
**broken link removed**

 

[Rusttree]

It would appear the OP has already spent some time on microchip.com looking at datasheets and product comparisons. He is looking for a PIC that has a specific pin arrangement, not a specific feature.

If you haven't already, trying asking this question in the Microchip forums (microchip.com/forums). I don't believe an official resource exists that you're looking for, but someone there may have put together something similar for themselves.

 

[blueroomelectronics]

Since it's for a watch why not just preprogram the PIC before soldering it in? Or look at a 14pin PIC these are still pretty tiny.

OP why not post your PCB layout so we can offer suggestions on what might fit? Are you using surface mount parts?

 

[RufusVS]

Actually, I know what the OP is looking for, I would like it too.

A chart, or even a spreadsheet, with the signal names that
are on each pin for variations of a chip.

For example, if the rows were the pins, and each column gave the
signal names that pin is used for.

Right now you have to pull up all the data sheets. but, for example, it seems like
most of the 28-pin PICs have basically the same pinout, so if you are only using a few
functions, you can use one of several different chips in the same design.

For example, I am looking at the data sheet for the PIC18(L)F2X/4XK22, page 5,
PDIP,SOIC,SSOP package:

1 is MCLR/Vpp, 8 and 19 are Vss, 20 is Vdd. Then, going counterclockwise from pin2,
skipping those 4 pins, I see RA0-RA5, RA7,RA6, RC0-RC7, RB0-RB7

(some datasheets put the multiple choices on each pin, in this one, the choices are in a table on the next page)

It would be nice if there was an aggregate table of all the similar, same pincount chips.

Cheers!

Rufus