| HELP | PIC Pins |
There are a number of pins which you will find on the vast majority of PICs. Thse include the following, which are discussed in this section:
MCLR (Master CLeaR) - This pin resets the PIC when it is forced low. It is also a good idea to ensure that the PIC stays reset for a short while when the PIC is first turned on - this gives the oscillator and other components of the circuit a chance to warm up. This can be acheived by attaching a small circuit to the MCLR pin:
OSC1 & OSC2 -The PIC's oscillator is connected to these pins.
VDD - This is the positive supply pin. Generally a number between 3 and 6V, but you should check the specifications of the individual PICs.
VSS - This is the 0V pin.
T0CKI - TMR0 ClocK Input. The TMR0 can be set to count the pulses on this pin, using the OPTION register.
You can find the pin layouts of particular PICs here.
Related topics
Oscillator
Devices