I am using PIC16F616 in my design and I looking at the page 107: SHUNT VOLTAGE REGULATOR
It says that you can use unregulated power supply directly to the Vdd pin. It eliminates the need for linear voltage regulator, you only need capacitor and a resistor which value should be calculated as follows.
Since I am using car power supply (let's assume it's 14V) and controling two NPNs over 10k resistor my Iload is just 1mA.
So Rmax=171 4 ohm and Rmin=189 ohm.
Then I am also reading chapter: electrical specification where it says that voltage on Vdd with respect to Vss can be -0.3v to +6.5V.
What does that mean? Can I power my pic using car voltage and only internal voltage regulator or not?
It says that you can use unregulated power supply directly to the Vdd pin. It eliminates the need for linear voltage regulator, you only need capacitor and a resistor which value should be calculated as follows.
Since I am using car power supply (let's assume it's 14V) and controling two NPNs over 10k resistor my Iload is just 1mA.
So Rmax=171 4 ohm and Rmin=189 ohm.
Then I am also reading chapter: electrical specification where it says that voltage on Vdd with respect to Vss can be -0.3v to +6.5V.
What does that mean? Can I power my pic using car voltage and only internal voltage regulator or not?