Which is the smallest bare avr chip which can be flashed with arduino boot loader with I2C.
Royston.
The atmega328 comes in a pretty small package. I believe 3x3 or 4x4mm.
4x4 VQFN
ATMEGA328-MU - ATMEL ATMEGA328-MU - MCU, 8BIT, ATMEGA, 20MHZ, VQFN-32 | Newark element14 US
