Hi everyone
Well this ds1820 ic is being a real pain. have gone over things with a multimeter and i have 5v going to pin 3. data is pin 2 and gnd is pin 1

This is what the front of the ic looks
________
dallas
ds1820
0634C3
+552AC
________
1 2 3
GND 5V
DATA
2k4 resistor tied between pin 2 and pin 3

I did notice "Vpu" figure 1 page 2 of the data sheet. What is Vpu is that the 5v line as i am using it. I assume it is. Could this be the problem??

Am BALD cause of this ic. hahaha