12 bit source driver

Discussion in 'The Projects Forum' started by badbaud, Aug 13, 2010.

  1. badbaud

    Thread Starter Member

    Mar 5, 2009
    26
    0
    I have this small 8 bit MCU that needs to drive the gates of 10 triacs so my first solution was to use the Allegro A6811 serial in parallel out 12 bit source driver. BUT Allegro no longer makes such a device. Does anyone in the world still make DIP IC versions of this kind of device? This project must contain all DIP type IC's but I suppose a PLCC package would suffice if I have to.

    Any suggestions?
     
  2. DickCappels

    Moderator

    Aug 21, 2008
    2,646
    631
    Without more detail about how you plan to use the A6811. Can you post a data sheet?

    If you can get the surface mount package, why not use it?
     
  3. sage.radachowsky

    Member

    May 11, 2010
    241
    38
    Would a shift register work for you? Or two.

    You can string together shift registers. Typically they are 8 bits per chip and you can daisy chain two of them, given 16 outputs, serial-in, parallel out.

    Sage
     
  4. badbaud

    Thread Starter Member

    Mar 5, 2009
    26
    0
    A shift register would not work as it just shifts bits in "bucket" format. I need a true serial in parallel out IC where I can load a serial pattern of on and off bits, latch them into the output buffers and when ready strobe the output buffers to change from their previous state and display the new data on the outputs.
     
  5. badbaud

    Thread Starter Member

    Mar 5, 2009
    26
    0
    I found a 8 bit version that will work. The Micrel MIC5891, I'll just use two.
     
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