8x42 Keyboard Controller Circuit

Hi,
I have serveral 8042/8242pc keyboard controller chips that I have
collected from different Pc boards and I would like to use one of them
on a little micro project that I am working on. does anybody know where
a can find a circuit diagram that uses this chip. I have found the
intel datasheet on the chip but this does notgivethe pin outs or wiring
that would have been used on the boards.

 

[mike]

kenkeeley@hotmail.com wrote:

Hi,
I have serveral 8042/8242pc keyboard controller chips that I have
collected from different Pc boards and I would like to use one of them
on a little micro project that I am working on. does anybody know where
a can find a circuit diagram that uses this chip. I have found the
intel datasheet on the chip but this does notgivethe pin outs or wiring
that would have been used on the boards.

Unless they have a window in the top, they're not reprogrammable.
Finding reprogrammable ones in a keyboard is very rare.
And even if they are, you still have to find software and a programmer.
And someone to help.

You can get free samples of most any current chip.
Save yourself the hassle and learn a skill that you can use on current
technology.
mike

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