Device	Flash (Kbytes)	Pin Count	Max. Operating Frequency	CPU	# of Touch Channels	Max I/O Pins	Ext Interrupts	SPI	TWI (I2C)	UART	ADC Channels	ADC Resolution (bits)	ADC Speed (ksps)	Analog Comparators	SRAM (Kbytes)	EEPROM (Bytes)	Self Program Memory	Temp. Range (deg C)	I/O Supply Class (V)	Operating Voltage (Vcc)	Timers	Output Compare Channels	Input Capture Channels	PWM Channels	32kHz RTC	Calibrated RC Oscillator	Green Packages
ATmega8	8	32	16	8-bit AVR	12	23	2	1	1	1	8	10	15	1	1	512	yes	-40 to 85	2.7 to 5.5	2.7 to 5.5	3	3	1	3	yes	yes	 MLF (VQFN) 32 TQFP 32 PDIP 28
ATmega88	8	32	20	8-bit AVR	12	23	24	2	1	1	8	10	15	1	1	512	yes	-40 to 85	1.8 to 5.5	1.8 to 5.5	3	6	1	6	yes	yes	 MLF (VQFN) 32 TQFP 32 PDIP 28