Hi,

The PIC will run at 3.6v. However, my circuit contains 3 main modules:

PIC 16F628
GSM module (GR47)
GPS module (ZX4120)

The PIC can run at a very wide range of voltages (2.2-5.5 I think)
The GSM module can run from 3.4-6v (including ripple)
According to the datasheet, the GPS can run from 3.3v +-5%. However, in the same data sheet, it is specified that it can run up to 3.6v.

In this case I can run eveything from a 3.6v supply, which would be good :-)

Maybe I should email the manufacturers and ask them about the descrepancy...


Ben