I/O extender

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  1. - 1st January 2008, 08:48 #3
    Luciano's Avatar
    Luciano
    Luciano is offline Senior Member
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    Hi,

    See the Microchip MCP23016. (16-bit bidirectional I/O port expander).

    You can address up to eight MCP23016 in your system so this
    will give you up to 128 I/O pins.

    Microchip MCP23016 16-Bit I2C™ I/O Expander
    http://ww1.microchip.com/downloads/e...Doc/20090b.pdf

    Interfacing The MCP23016 I/O Expander with the PIC16F877A:
    http://ww1.microchip.com/downloads/e...tes/00245a.pdf


    * * *

    There is also a version with an 8-bit bidirectional I/O port.

    Microchip MCP23008 8-Bit I/O Expander with I2C Interface
    http://ww1.microchip.com/downloads/e...Doc/21919e.pdf

    Best regards,

    Luciano
    Last edited by Luciano; - 1st January 2008 at 08:52.
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