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st7lite29 problem

xuyong-1980
Associate
Posted on February 19, 2004 at 07:33

st7lite29 problem

2 REPLIES 2
xuyong-1980
Associate
Posted on February 19, 2004 at 05:38

dear sir,

Can I use pllx4 in 3.3v-5V range? In fact in my project, the system

work normally in 5v range and after the 5v power supply down and

a 3.6V battery is power up. Because I hope the Fcpu is 8MHz, so if I use 2MHz Resonator with PLLx8 in 5V, but Can I use PLLx8 in 3.3V range?

Looking forward any response ASAP! Thanks a lot!

apple xu
anshul
Associate II
Posted on February 19, 2004 at 07:33

The operating voltage range of PLLx4 is 2.4v to 3.3V and

that of PLLx8 is 3.3V to 5.5V.