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Choosing the 'best' PIC

Discussion in 'Oshonsoft' started by camerart, Apr 5, 2017.

  1. camerart

    camerart Active Member

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    Hi,
    for years, my only projects used 16series 8 and 18 PIN PICs. I now have a project with a 40pin PIC. Having to read and familiarise yourself with the PIC you are using takes time, and to really know it, then it takes longer.

    PICs with 28 pins usually are fine for most things I do now, and don't take up much space. I am just venturing into surface mount where PICs ar much smaller. I think I'll be ok with the SOIC footprint regarding soldering them.

    I'm now considering using PIC with more pins (more expensive), for even simple projects, so that my programs are all compatible. they must be able to simulate in Oshonsoft, and be low voltage (3.3v) also surface mount.. One 28PIN and one 40PIN should cover it. One suggestion is 18F45K22
    Any suggestions for your favourites welcome.

    Cheers, Camerart
     
  2. Ian Rogers

    Ian Rogers Super Moderator Most Helpful Member

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    Comes in a 28 pin as well... pic18f25k22..
     
  3. camerart

    camerart Active Member

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    Hi I,
    I saw that! I'll see if anyone else has a different idea before ordering them, in case they use a similar but better PIC.
    I'm just looking through the selections in M.A.P.S.
    EDITED
    C
     
    Last edited: Apr 5, 2017
  4. dave

    Dave New Member

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  5. camerart

    camerart Active Member

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    Hi,
    If this link opens, have you seen it before, as it's not the usual PIC selector I use. You'll need a 15ft wide screen though:)
    http://www.microchip.com/ParamChartSearch/chart.aspx?branchID=8181
    C
     
  6. jjw

    jjw Member

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    For Android devices there is a free Picmicro database. Look in Google Playstore.

    I find it easier to use than Microchips own.
    It can filter by microchip families, package, number of pins, size of ram, flash, speed, peripherals etc.
     
  7. camerart

    camerart Active Member

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    Hi,
    As the 40pin version has a smaller footprint type than the 28 version I think I will go with 18LF25K22.
    I think Oshonsoft ignores the 'L', for programming.
    Thanks, C.
     
  8. ericgibbs

    ericgibbs Well-Known Member Most Helpful Member

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    hi C,
    Check thru this OS list first.
    E
    A001.gif
     
  9. camerart

    camerart Active Member

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    Hi Eric,
    Thanks, what a shame!

    As a limited programmer, I guess that I should stick to the ones above the ********************* set of PICs.

    If I recall correctly you wrote a section of code that got round the PWM limitations of the PIC I was using at the time, which is one of the items on the un-supported list. I doubt you would wish to do this for all of the other items :arghh:
    C.
     
    Last edited: Apr 5, 2017
  10. camerart

    camerart Active Member

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    Hi
    Having gone blue in the face using at the M.A.P.S. PIC selector while trying to find any system for microchip's mysterious numbering, I've slid down the pole back to ones that Eric chose some time ago: 18F2520 and 18F4520, or 18F2620 and 18F4620.

    Slightly 'better' is 18LF26K22. These latter PIC's aren't shown in the Oshonsoft list, but would they program ok? The L is for lower voltage and I think the K shows more timers. The 40 pin type are not quite right as they don't have the SOIC footprint, they are smaller (Beyond my circuit making skills)
    C
     
  11. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    Does Oshonsoft support the 24F series?, they offer much higher spec than the 18 series and are 16 bit rather than 8 bit.
     
  12. ericgibbs

    ericgibbs Well-Known Member Most Helpful Member

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    hi C,
    The 18LF26K22 is listed on OS but it has the limitations I posted.

    E
    A003.gif
     
  13. camerart

    camerart Active Member

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    Hi N, Sadly no.

    Eric,
    Ok, So it looks like 18F2620 and 18F4620 are the best we can do.
    I doubt I will be doing anything too technical for them.
    EDIT: I presume that the L is ok? As in 18LF2620.
    Thanks, C.
     
    Last edited: Apr 6, 2017
  14. ericgibbs

    ericgibbs Well-Known Member Most Helpful Member

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    hi,
    The LF has a wider operating voltage
    E
    A001.gif
     
  15. camerart

    camerart Active Member

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    Hi Eric,
    It looks like I've spent a long time going round in circles only to end up where I was!
    If I need more 28 PIN PICs I'll order 18LF2620s, but as I already have 25LF20s (SOIC) I'll stick to them, till I need the very slightly better '6' ones.
    Thanks to all, C.
     
  16. ericgibbs

    ericgibbs Well-Known Member Most Helpful Member

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    hi C,
    Reminds me of the Oozlum bird.:woot:

    The oozlum bird, also spelt ouzelum, is a legendary creature found in Australian and British folk tales and legends. Some versions have it that, when startled, the bird will take off and fly around in ever-decreasing circles until it manages to fly up its own backside, disappearing completely, which adds to its rarity

    https://en.wikipedia.org/wiki/Oozlum_bird
    E
     
  17. camerart

    camerart Active Member

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    Hi Eric,
    I'll try not to get startled then;)
    C.
     

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