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Thread: Running out of I/Os! Need external register recommendation with similar current output capability
www.piclist.com/techref/microchip/ios.htm?key=output
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face BY : Dan Michaels email (remove spam text)



Neil Gandler wrote:
>I am using a PIC16F77 in a design. Unfortunately I am running out of I/O
and Microchip doesn't make a 60+ pin version
>of this PIC series. My only option for increased I/O in the PIC family is
the more advanced processors that do not have
>Flash based program memory and are more expensive. I am searching for an
external register IC with readback of output state and similar current
output capabality (~30mA). Thanks


You might consider boot-strapping another PIC as auxiliary slave,
and talking to it via I2C/etc. 28-pin PIC will get you about
21 extra I/O pins.

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Subject (change) Running out of I/Os! Need external register recommendation with similar current output capability

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