New Microchip PIC32 chips in DIP packages are coming

in PIC by DP | 16 comments

While rummaging through the Microchip site, Octal stumbled across new PIC32 chips in 28 Pin through-hole packages. All the chips marked with 28 pins have a SPDIP version. Some are in production right now, although their SPDIP versions are not on sale yet.

Via the forum.

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Comments

  1. Markus Gritsch says:

    Yay, looking forward to them. And those PIC32 chips already have PPS :)

  2. kmmankad says:

    And this is how you can really get great penetration of your technology.By releasing DIP packages.

  3. Rohit de Sa says:

    moar chips!! yum yum! :-)

    • Arup says:

      I like the DIP option, easy to prototype in breadboard.

      • kmmankad says:

        Exactly.MCU Companies should realize that the a good way they can get their products popular,is allowing students and hobbyists to use them the way _they_ want,not just on a company made kit with a QFN package. DIP packages \m/

      • arhi says:

        One of the problem is that DIP package cost a lot more then TQFP and QFN is even cheaper .. and since they have same die inside DIP gets too expensive so maybe that’s the reason they decide not to make it … I don’t mind sip, everything over 0.5mm pitch is ok, but those 0.4mm pitch and legless packages ..

  4. Chris says:

    The truth is students and hobbyists are the future of the industry. Many hobbyists are starting small kitbiz’s and similar and many students will go on to found the new electronics companies and work for the current ones. If they are familiar with your technologies they are more likely to push and use them. DIPs are an investment in the future of your brand right now.

  5. They are on sale now!

    In the last few days the SPDIP-28 chips are now in stock and available for purchase from Microchip. And also take a look at their Microstick II which includes multiple 16-bit/32-bit chips.

    Also check out my prototype board using PIC32MX220F032B on my blog.

  6. Markus Gritsch says:

    @Dave Van Wagner: In your blog entry you write “Following that is to add a crystal and capacitors to get USB support for the PIC32″. Why do you consider adding a crystal for the PIC32? The datasheet says Internal FRC Accuracy Min: -0.9, Max: +0.9 for the PIC32, and Min: -1.25, Max: +1.0 for the PIC24FJ. Both beyond the 0.25% tolerance required for USB. The only difference is that the PIC24FJ datasheet says Typ: 0.25% whereas the PIC32 one says nothing about a typical accuracy. Have you tried if the CDC example works for the PIC32 with internal FRC oszillator?

  7. @Markus Gritsch:

    My experience is that the PIC24FJ64GB002 part can do USB just fine without the external crystal, but when testing a PIC32MX795F512H that part required a crystal to do the USB CDC example. I have not tested the PIC32MX220F032B with a CDC example yet. I would be pleasantly surprised and overjoyed to be wrong if it did not require the crystal.

    The PIC32 Family Reference Manual, Section 27. USB On the Go (OTG) includes the following text

    The USB OTG module can also use the on-board Fast RC oscillator (FRC) as a clock source.
    When using this clock source, the USB OTG module will not meet the USB timing requirements.
    The FRC clock source is intended to allow the USB OTG module to detect a USB wake-up and
    report it to the interrupt controller when operating in low-power modes. The USB OTG module
    must be running from the Primary oscillator before beginning USB transmissions.

    • Markus Gritsch says:

      I can confirm that my PIC32MX220F032B does not enumerate when using the internal FRC oszillator. It enumerates fine after adding an XTAL.

  8. Markus Gritsch says:

    @Dave Van Wagner: The PIC32MX5XX/6XX/7XX data sheet says FRC accuracy is -2% .. +2%, whereas the PIC32MX1XX/2XX data sheet says FRC accuracy is -0.9% .. +0.9%, so it seems they have improved it on the new devices. While 0.9% still does not meet the USB timing requirements, it is better than the PIC24FJ64GB002 which has -1.25% .. 1.0%. I think it would be worth trying if the CDC example works for the PIC32MX220F032B with the FRC oscillator. It would be nice if you could post your findings here.

    • arhi says:

      I tried number of devices with “better then -+0.9% FRC accuracy” and had bunch of issues with USB… sometimes the device would enumerate and sometimes the same device would fail to enumerate, after enumeration sometimes there will be errors in communication, sometimes not .. So mine experience with internal oscillator’s is – if you need USB, it will save you many hours debugging if you use a proper external xtal.

      The -+0.9% is great precision for UART (compared to some other devices where if you go with internal osc you can’t even get reliable uart speeds over 9600 bps) but if you want USB get a real xtal

  9. Shaos says:

    @Dave Van Wagner: Thanks! I didn’t know they have PIC24 in DIP! So now I can add nedoCPU-24 to my nedoCPU family ;)

  10. Sleepwalker3 says:

    I like the idea of DIP’s for doing one-off boards, much more flexible. Has anybody looked at what sorts of things you get with these new ones over the current DIP versions?

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