Lpc2000

--- In lpc2000@yahoogroups.com, "Sutton Mehaffey" <sutton@...> wrote:
>
> Charles,
> 
> Using 10K pullups.
> 

10k isn't a pull-up when applied to I2C.  The absolute maximum that
might work on a good day is about 4.7k and a more realistic value is 2.2k.

You never provided a link to the RAM device (that I recall) but in
looking at the FM24CL64, they recommend a 1.1k pull-up.  The reason it
is so small is the lower VDD.  Normally, at 5V VDD the pull-up can go
as low as 2k, maybe 1.8k.  At 3.3V the resistor would be somewhat smaller.

But, again, I don't know which device you are using.

Richard