Ravi wrote:
> I have a 16F676 @ 4MHz communicating with 24LC256 using RC1 (SDA, with
> 1K pull up) and RC2 (SCL).

I didn't look up a 24LC256, but from the signal names (SDA, SCL) you are
apparently using IIC to communicate with it.  If so, with a 1K ohm pullup
you can't run the bus at more than 3V due to the 3mA max sink requirement of
IIC nodes.

Remember that ohms equals volts divided by amps, which tells you how to
calculate the lowest allowed pullup resistor.  If pulling up to 5V, this is
5V / 3mA = 1.7Kohms.  I can't even guess how you came up with 1K ohms.


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