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ps2 key board voltage issue

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raman00084

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i am interfacing ps2 key board in arm lpc1768, the ps2 supply voltage is 5v but lpc1768 is 3.3v how can i connect the interrupt and data pins in lpc1768 should i use any resistor.thank you
regards,
 

Hi,

Check the lpc datasheet. Maybe the io is 5V compatible...

Klaus
 

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