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About driving that LCD

Discussion in 'Electronic Design' started by Eeyore, Feb 12, 2007.

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  1. Eeyore

    Eeyore Guest

    Thanks to all who replied to my post about driving a simple LCD.

    Thanks especially to Dave Platt who suggested the NXP 89LPC94xx devices. The
    '9408 could have purpose designed for the task with an onboard LCD controller
    plus it also has a 10 bit ADC and 512 byte EEPROM both of which I was looking
    for too. In 1k+ it's a resonable $2.93 too.

    Incidentally, it's only in LQFP packaging. How do prgramming adaptors work for
    those ? I'm curious how a socket would grip the leads. I've intentionallly only
    previously used PLCC parts of this type before.

  2. You can certainly buy a clamshell test socket for LQFP (eg. Yamaichi),
    but I'd use ICP/ISP instead.

    Best regards,
    Spehro Pefhany
  3. Terry Given

    Terry Given Guest


    the LPC family are great.

    I recently did a design for some isolated I/O, and an LPC with two
    opto's was cheaper than a couple of shift registers and 4 optos. by
    quite a bit. Plus of course internally they are "proper" micros - I've
    worked on projects using PICs, but ugh (fortunately others did the
    programming). And I had the misfortune of using an AVR chip that didnt
    have a multiply once. double ugh!

  4. Eeyore

    Eeyore Guest

    I was wondering about that. I didn't see that much about programming so far. There
    must be some boot code of some description to allow that.

  5. Eeyore

    Eeyore Guest

    I nearly forgot to say it's got an 8051 core too. Just the ticket since I've plenty
    of experience with that.

  6. Guest

    I don't know if NXP has gotten around to adding it, but ICD can be a
    really, really nice feature.
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