Lpc2000

--- In lpc2000@yahoogroups.com, "unity0724" <unity0724@y...> wrote:
> 
> --- In lpc2000@yahoogroups.com, "top4e" <top4e@y...> wrote:
> > 
> > I have better rezults. I'm using LPC2124 at 103,2192 MHz with 
> 14,7456 
> > MHz quartz. The best result was with 10MHz quartz at 110MHz, but 
> > works unstable.
> 
> Hi,
> Questions:  What's your supply voltage for CPU core?
> Is that exact 1.8V or Higher? like 2.5V??
> I believe you should run faster at higher core voltage.
> 
> Actually, I'm just thinking of supply slightly higher 
> than 1.8V for my 50MHz operation.   That should improve
> the reliability.
> Thanks  /MH
Hi unity0724,
The core voltage is 1.83V. I think the limit is peripherial clock 
limeted around the 25MHZ. I think that the higher voltage is not good 
idea, when you wark in normal freqency range. The controler must be 
fully tested in this range of frequencis. The result woud be higher 
chip temperature, I think.