Hi all !
I have a montage where I use 16F628A I/P with the settings below. Due to the price that has increased a lot and the unavailability (is it an older generation?) I would like to switch to 16F1827 (or 16F1826), which has the same number and arrangement of ports. I don't use ADC at all !
Can somebody help me with some advice, what exactly should I change in the uC setting part? I looked in the datasheet, but it is (much too) complex for my level...
Thank you in advance for any answer !

On port A 2,3,4 I read if level is high or low, on port B (all) I run 0 or 1 logic according to levels on port A. That's all !

Code:
@ __config _INTOSC_OSC_NOCLKOUT & _WDT_OFF & _PWRTE_ON & _MCLRE_ON & _BODEN_ON & _LVP_OFF & _CP_OFF

include "alldigital.pbp"
   DEFINE   OSC 4           ' 4MHz 
   CMCON = 7                ' Disable on-chip comparator, PORTA in digital mode


TRISA = %00011100           
PORTA = %00011100
PORTB = %00000000
TRISB = %11111111

OPTION_REG.7 = 1