Charles Bannister wrote:

EEPROM, REAL TIME CLOCK, A/D CONVETER plus more devices.

There are variants with all of these built in as standard, but not in DIP packages, there just aren't enough pins. I don't understand why people are so scared of surface mount ! Its perfectly simple to handwork up to 68 pin PLCC and 100 pin TQFP without special tools.

Steve