I wonder why weak pullups availability in PICs is more an exception
than a rule. I could understand old models, say 16F84 not having them,
but I am surprised why most of the PIC18F don't offer that option
except in PORTB, and in many cases just as a port wide on/off option.
Given the size a simple pullup requires in the PCB, I have a hard time
trying to understand why a simple FET is a costly resource in the die
for the Microchip engineers.

Some modern 8 bit PICs such as 16F688 has individual pin selectable
pullups, but again only for 1 port.

To make it worse, AVR offers individual pin selectable pullups in all
ports, at least in all 8 bits micros I played with.

Does anyone have a clue?

-- 
Ariel Rocholl
Madrid, Spain
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