No idea why I was thinking about it but...if for some reason
you need to use an 8pin AVR with an 8pin smartserial I2C like
this one
http://microchip.com/download/lit/pline/memory/ic/21073j.pdf
If you'd like to save space it appears you can just solder
serial EEPROM on top of the AVR. VCC/GND are in the same
place on both chips.
as I said...an odd thought