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microcontroller with internal lcd controller in LQPF format

ERNESTO GALIANO
Prodigy 140 points 
hello forum , 
I need to replace a microcontroller PIC24FJ256DA210 in a HMI with CAN bus , I find that TI replacement is a TIVA TM4c129x , but is BGA and I can not weld it.
TI has a microcontroller with internal LCD controller in LQFP format?
Thank you

  • 0
    TI__Guru**** 244400 points
    Hello Ernesto

    The LCD controller due its wide bus operation is only available on the 212 BGA package.

    Regards
    Amit
  • 0 in reply to Amit Ashara
    Guru 47900 points

    May I add to Amit's comment that (surely) it makes little sense for you to be overly concerned w/Chip Reflow at this (so early) stage in your migration?

    Are not:

    • presence of sufficient & suitable display drive signals
    • presence of display-based software
    • presence of eval kits - which include displays (thus eliminate your "fear" of BGA)

    of (far) greater importance?    As past co-founder of display firm - I believe these facts to be true.

    Should your design succeed - there are many contract manufacturers skilled in BGA placement & reflow soldering.

  • 0 in reply to cb1
    TI__Guru**** 244400 points
    Hello cb1

    Excellent point. And to add display (though costlier) now have their own RAM to allow slower interfaces to update the panel image.

    Regards
    Amit
  • 0 in reply to Amit Ashara
    Guru 47900 points
    Indeed Amit. Any poster - starting by reflow/soldering a complex, fine-pitch MCU (even QFP) - opens themselves to lost hours/days/weeks of agonizing (and needless) effort.

    Eval Kits eliminate all such agony - and (properly) enable users to "stick to their mission!" (which rarely is pcb build - instead should be optimization of their design/development - each "tuned" to their specific "niche market.")
  • 0 in reply to cb1
    TI__Guru**** 244400 points
    Hello cb1

    Practice has made me do a QFP package change better than the 8 Pin DIP I used to do earlier. But any novice should be extra careful with such changes. And to note when changing device family, pin compatibility is not there....

    Regards
    Amit
  • 0 in reply to Amit Ashara
    Guru 47900 points

    Amit Ashara said:
    Practice has made me do a QFP package change better than the 8 Pin DIP

    I don't doubt that - but "steering, First time users" (clearly this PIC24 user) into "Spinning their own board" - Off the Bat - seems unwise.

    Your Assembled/Tested/Verified Eval boards - insure proper signal routing, proper placement of key/critical (and correct value) components, and "to spec" reflow soldering.  

    Can ALL of that be expected upon (any) novice board?   Regularly?   Reliably?

    When the board then (surely) fails to perform - where do we begin?   Hardware, Software, Layout - is not the "Suspect List" endless/boundless?

    Posters (such as o.p. here) should be steered to "known good" Eval Boards - and concern for "welding" dropped FAR down their, "List of Concerns!"

  • 0 in reply to cb1
    TI__Guru**** 244400 points
    Hello cb1

    Point noted and accepted

    Regards
    Amit
  • 0 in reply to Amit Ashara
    Prodigy 140 points 
    Hello.
Thank you very much for the concepts .
My question was directed to buy or not buy a BGA inspection station .
In our company we have a SMT assembly line , but never use BGA , so I look for a microcontroller with LCD in another format.
I agree with the concepts of evaluation kits .
Again thank you very much
  • 0 in reply to ERNESTO GALIANO
    TI__Guru**** 244400 points
    Hello Ernesto

    You are welcome. Do note that the QFP can still work with LCD panels with integrated memory.

    Regards
    Amit
  • 0 in reply to Amit Ashara
    Prodigy 140 points
    Hi amit
    In this case , the machine is very sensitive to the final price .
    The difference between the displays with and without search warrants controller options.
    We will continue with the search .
    Thank you very much for your attention.
  • 0 in reply to ERNESTO GALIANO
    Guru 47900 points

    ERNESTO GALIANO said:
    The difference between the displays with and without search warrants controller options.

    Might that read (bit) better as, "difference between the displays with and without Controllers - warrants search?"

    "Search Warrants" indeed - have an entirely different meaning.   (credit UCLA law...)

    As past co-founder of public display firm - cost of the display is just one consideration.   As earlier listed (right here!) - other items "warrant" consideration - and may overwhelm the display's cost in total product development, "Cost, Time, Effort..."

    O.P. and other display users may note that the key "figures of merit" for displays include:

    • Contrast Ratio
    • Viewing Angle
    • Backlight's Brightness

    It is doubtful that "low cost display" will score high upon, "some/all of the above..."    As the display much impacts Sales - low cost may not prove optimal...