alright, i'm getting confused. Now I'm trying to build a circuit with PIC16f628 at 5v and connect to an LCD display from NOKIA 3310 which maximum input is 3.3v.
so, I connect the PIC and LCD thru portB 0-4 (5 pins), my question is, should I put Diodes in between the LCD and PIC pins, or use a voltage divider? or just put a 10k resistor? (PIC running at 5v, LCD max input = 3.3v)
SKY
p.s. forget about the PIC connect PIC scenario. I've already build a logic analyzer for that case.