[SOLVED] LPC2368 voltage levels

[bikashh]

dear friends,
I am using LPC2368 in my project and had a dought what is the minimum voltage that is considered as a logic 1 and min as logic 0 at port pins.because i am detecting a AC voltage which is stepdown and converted to 3V
DC and considering it as logic 1.please tell me whether it is correct.

thanks in advance

 

[kak111]

Hello

https://www.keil.com/dd/docs/datashts/philips/lpc236x_ds.pdf

Static Characteristic in Page 34

VDD(3V3) supply voltage (3.3 V) core and external rail 3.0 3.3 3.6 V

VIH HIGH-level input voltage min.2.0 - - V
VIL LOW-level input voltage - - max. 0.8 V

KAK