AVR Core	Hardware Multiplier	Flash (Kbytes)	Boot Code (Bytes)	ISP	Self Program Memory	EEPROM (Bytes)	SRAM (Bytes)	Debug	RTC w/Osc.	8-bit Timers	16-bit Timers	Input Capture Block/Channels	Max QTouch/QMatrix Channels	PWM Channels	Enhanced PWM	SPI	TWI	USART	CAN	LIN	10-bit A/D Single-Ended Channels	Analog Comparator	10-bit D/A Channels	Temp. Sensor	Interrupts + Reset Vectors	Ext Interrupts	LCD (segments)	Brown Out Detector	xtal Osc High/Low Speed	On-chip RC Oscillator	Watchdog w/RC Osc.	PLL/Prescaler	MIPS	F.max (MHz)	Vcc (V)	Max I/O Pins	picoPower
AT90CAN128 Automotive	8-bit	yes	128	included	yes	yes	4K	4K	JTAG	yes	2	2	2/3	16/64	7	no	1	1	2	1	0	8	1	0	no	37	8	no	yes	H/L	1MHz + cal 8MHz	yes	no/yes	16	16	2.7 - 5.5	53	no
AT90CAN32 Automotive	8-bit	yes	32	included	yes	yes	1K	2k	JTAG	yes	2	2	2/3	16/64	7	no	1	1	2	1	0	8	1	0	no	37	8	no	yes	H/L	1MHz + cal 8MHz	yes	no/yes	16	16	2.7 - 5.5	53	no
AT90CAN64 Automotive	8-bit	yes	64	included	yes	yes	2K	4K	JTAG	yes	2	2	2/3	16/64	7	no	1	1	2	1	0	8	1	0	no	37	8	no	yes	H/L	1MHz + cal 8MHz	yes	no/yes	16	16	2.7 - 5.5	53	no
ATmega164P Automotive	--	Yes	16	--	--	Yes	512	1024	--	--	2	1	--	--	6	--	1+USART	Yes	--	--	--	--	Yes	--	--	--	32	--	Yes	--	--	--	--	--	16	2.7 - 5.5	32	--	TQFP 44 VQFN (Sawn) 44
ATmega168 Automotive	8-bit	yes	16	included	yes	yes	512	1K	DebugWire	yes	2	1	1/2	16/64	6	no	1+1 USART master	1	1	0	0	8	1	0	no	26	24	no	yes	H/L	128KHz + cal 8MHz	yes	no/yes	16	16	2.7 - 5.5	23	no	VQFN (Sawn) 32 TQFP 32
ATmega169P Automotive	8-bit	yes	16	included	yes	yes	512	1K	JTAG	yes	2	1	1/2	16/-	4	no	1 + 1 USI	1 USI	1	0	0	8	1	0	no	23	17	4*25	yes	H/L	1MHz + cal 8MHz	yes	no/yes	16	16	2.7 - 5.5	54	yes	TQFP 64
ATmega324P Automotive	8-bit	yes	32	included	yes	yes	1K	2K	JTAG	yes	2	1	1/2	16/64	6	no	2 USART master	1	2	0	0	8	1	0	no	31	32	no	yes	H/L	128KHz + cal 8MHz	yes	no/yes	16	16	2.7 - 5.5	32	yes	TQFP 44 VQFN (Sawn) 44
ATmega328P Automotive	8-bit	yes	32	included	yes	yes	1K	2K	DebugWire	yes	2	1	1/2	16/64	6	no	1 USART master	1	1	0	0	8	1	0	yes	26	24	no	yes	H/L	128KHz + cal 8MHz	yes	no/yes	16	16	2.7 - 5.5	23	yes	MLF (VQFN) 32 TQFP 32
ATmega32C1 Automotive	8-bit	yes	32	included	yes	yes	1K	2K	DebugWire	no	1	1	1/3	12/-	4	no	1	0	1 (LIN)	1	1	11	4	1	yes	31	27	no	yes	H/L	128KHz + cal 8MHz	yes	yes/yes	16	16	2.7 - 5.5	27	no	TQFP 32 VQFN (Sawn) 32
ATmega32M1 Automotive	8-bit	yes	32	included	yes	yes	1K	2K	DebugWire	no	1	1	1/3	12/-	10	yes	1	0	1 (LIN)	1	1	11	4	1	yes	31	27	no	yes	H/L	128KHz + cal 8MHz	yes	yes/yes	16	16	2.7 - 5.5	27	no	TQFP 32 VQFN (Sawn) 32
ATmega48 Automotive	8-bit	yes	4	no	yes	no	256	512	DebugWire	yes	2	1	1/2	12/16	6	no	1 USART master	1	1	0	0	8	1	0	no	26	24	no	yes	H/L	128KHz + cal 8MHz	yes	no/yes	16	16	2.7 - 5.5	23	no	VQFN (Sawn) 32 TQFP 32
ATmega644P Automotive	8-bit	yes	64	included	yes	yes	2K	4K	JTAG	yes	2	1	1/2	16/64	6	no	2 USART master	1	2	0	0	8	1	0	no	31	32	no	yes	H/L	128KHz + cal 8MHz	yes	no/yes	16	16	2.7 - 5.5	32	yes	VQFN (Sawn) 32 TQFP 44
ATmega64C1 Automotive	8-bit	yes	64	included	yes	yes	2K	4K	DebugWire	no	1	1	1/3	12/-	4	yes	1	0	1 (LIN)	1	1	11	4	1	yes	31	27	no	yes	H/L	128KHz + cal 8MHz	yes	yes/yes	16	16	2.7 - 5.5	27	no	TQFP 32 VQFN (Sawn) 32
ATmega64M1 Automotive	8-bit	yes	64	included	yes	yes	2K	4K	DebugWire	no	1	1	1/3	12/-	10	yes	1	0	1 (LIN)	1	1	11	4	1	yes	31	27	no	yes	H/L	128KHz + cal 8MHz	yes	yes/yes	16	16	2.7 - 5.5	27	no	TQFP 32 VQFN (Sawn) 32
ATmega88 Automotive	8-bit	yes	8	included	yes	yes	512	1K	DebugWire	yes	2	1	1/2	12/32	6	no	1 USART master	1	1	0	0	8	1	0	no	26	24	no	yes	H/L	128KHz + cal 8MHz	yes	no/yes	16	16	2.7 - 5.5	23	no	VQFN (Sawn) 32 TQFP 32
ATtiny167 Automotive	8-bit	no	16	no	yes	yes	512	512	DebugWire	yes	1	1	1/2	8/8	9	yes	1+1 USI	1 USI	1 (LIN)	0	1	11	1	0	yes	20	16	no	yes	H/L	128KHz + cal 8 MHz	yes	no/yes	16	16	2.7 - 5.5	16	no	VQFN (Sawn) 32 TSSOP 20 SOIC 20
ATtiny24 Automotive	8-bit	no	2	no	yes	yes	128	128	DebugWire	no	1	1	1/2	-/-	4	no	1 USI	1 USI	0	0	0	8	1	0	yes	17	12	no	yes	H/L	128KHz + cal 8 MHz	yes	no/yes	16	16	2.7 - 5.5	12	no	VQFN (Sawn) 20 SOIC 14
ATtiny25 Automotive	8-bit	no	2	no	yes	yes	128	128	DebugWire	no	2	no	0/0	-/-	4	yes	1 USI	1 USI	0	0	0	4	1	0	yes	15	6	no	yes	H/L	128KHz + cal 8 MHz	yes	yes/yes	16	16	2.7 - 5.5	6	no	VQFN (Sawn) 20 SOIC-EIAJ 8
ATtiny261 Automotive	8-bit	no	2	no	yes	yes	128	128	DebugWire	no	1	1	1/2	-/-	6	yes	1 USI	1 USI	0	0	0	11	1	0	yes	19	16	no	yes	H/L	128KHz + cal 8 MHz	yes	yes/yes	16	16	2.7 - 5.5	16	no	VQFN (Sawn) 32 SOIC 20
ATtiny44 Automotive	8-bit	no	4	no	yes	yes	256	256	DebugWire	no	1	1	1/2	6/8	4	no	1 USI	1 USI	0	0	0	8	1	0	yes	17	12	no	yes	H/L	128KHz + cal 8 MHz	yes	no/yes	16	16	2.7 - 5.5	12	no	VQFN (Sawn) 20 SOIC 14
ATtiny45 Automotive	8-bit	no	4	no	yes	yes	256	256	DebugWire	no	2	no	0/0	3/-	4	yes	1 USI	1 USI	0	0	0	4	1	0	yes	15	6	no	yes	H/L	128KHz + cal 8 MHz	yes	yes/yes	16	16	2.7 - 5.5	6	no	VQFN (Sawn) 20 SOIC-EIAJ 8
ATtiny461 Automotive	8-bit	no	4	no	yes	yes	256	256	DebugWire	no	1	1	1/2	8/8	6	yes	1 USI	1 USI	0	0	0	11	1	0	yes	19	16	no	yes	H/L	128KHz + cal 8 MHz	yes	yes/yes	16	16	2.7 - 5.5	16	no	VQFN (Sawn) 32 SOIC 20
ATtiny84 Automotive	8-bit	no	8	no	yes	yes	512	512	DebugWire	no	1	1	1/2	6/8	4	no	1 USI	1 USI	0	0	0	8	1	0	yes	17	12	no	yes	H/L	128KHz + cal 8 MHz	yes	no/yes	16	16	2.7 - 5.5	12	no	VQFN (Sawn) 20 SOIC 14
ATtiny85 Automotive	8-bit	no	8	no	yes	yes	512	512	DebugWire	no	2	no	0/0	3/-	4	yes	1 USI	1 USI	0	0	0	4	1	0	yes	15	6	no	yes	H/L	128KHz + cal 8 MHz	yes	yes/yes	16	16	2.7 - 5.5	6	no	VQFN (Sawn) 20 SOIC-EIAJ 8
ATtiny861 Automotive	8-bit	no	8	no	yes	yes	512	512	DebugWire	no	1	1	1/2	8/8	6	yes	1 USI	1 USI	0	0	0	11	1	0	yes	19	16	no	yes	H/L	128KHz + cal 8 MHz	yes	yes/yes	16	16	2.7 - 5.5	16	no	VQFN (Sawn) 32 SOIC 20
ATtiny87 Automotive	8-bit	no	8	no	yes	yes	512	512	DebugWire	yes	1	1	1/2	-/-	9	yes	1+1 USI	1 USI	1 (LIN)	0	1	11	1	0	yes	20	16	no	yes	H/L	128KHz + cal 8 MHz	yes	no/yes	16	16	2.7 - 5.5	16	no	VQFN (Sawn) 32 TSSOP 20 SOIC 20
ATtiny88 Automotive	8-bit	no	8	no	yes	yes	64	512	DebugWire	no	1	1	1/2	12/16	2	no	1	1	0	0	0	8	1	0	yes	20	28	no	yes	no	128KHz + cal 8 MHz	yes	no/yes	16	16	2.7 - 5.5	24/28	yes	VQFN (Sawn) 32 TQFP 32

	AVR Core	Hardware Multiplier	Flash (Kbytes)	Boot Code (Bytes)	ISP	Self Program Memory	EEPROM (Bytes)	SRAM (Bytes)	Debug	RTC w/Osc.	8-bit Timers	16-bit Timers	Input Capture Block/Channels	Max QTouch/QMatrix Channels	PWM Channels	SPI	TWI	12-bit A/D Single-Ended Channels	Temp. Sensor	Interrupts + Reset Vectors	Ext Interrupts	Brown Out Detector	Ultra Low-Power Osc.	Crystal Oscillator High/Low Speed	On-chip RC Oscillator	Watchdog w/RC Osc.	PLL/Prescaler	MIPS	F.max (MHz)	Vcc (V)	Max I/O Pins
ATmega16HVA	8-bit	yes	16	included	yes	yes	256	512	DebugWire	no	no	2	2/4	3/-	0	1	0	5 + CC	yes	21	3	yes	yes	no	128KHz ULP+ cal 131KHz + cal 8MHz	yes	no/yes	4	4	1.8 - 9.0	6	TSOP 28 LGA 36 (8x5)
ATmega16HVB	8-bit	yes	16	included	yes	yes	512	1K	DebugWire	no	no	2	2/4	8/-	0	1	1	7 + CC	yes	29	15	yes	yes	no	128KHz ULP+ cal 131KHz + cal 8MHz	yes	no/yes	8	8	4 - 25	17	TSSOP 44
ATmega32HVB	8-bit	yes	32	included	Yes	Yes	1K	2K	DebugWire	no	no	2	2/4	8/-	0	1	1	7 + CC	yes	29	15	yes	yes	no	128KHz ULP+ cal 131KHz + cal 8MHz	yes	no/yes	8	8	4 - 25	17	TSSOP 44
ATmega406	8-bit	yes	40	included	yes	yes	512	2K	JTAG	yes	1	1	0/0	8/-	2	0	1	10 + CC	yes	23	4	yes	yes	L	128KHz ULP+ cal 131KHz + cal 1MHz	yes	no/yes	1	1	4 - 25	18
ATmega8HVA	8-bit	yes	8	included	yes	yes	256	512	DebugWire	no	no	2	2/4	3/-	0	yes	0	5 + CC	yes	21	3	yes	yes	no	128KHz ULP+ cal 131KHz + cal 8MHz	yes	no/yes	4	4	1.8 - 9.0	6	TSOP 28 LGA 36 (8x5)

	AVR Core	Hardware Multiplier	Flash (Kbytes)	Boot Code (Bytes)	ISP	Self Program Memory	EEPROM (Bytes)	SRAM (Bytes)	Debug	RTC w/Osc.	8-bit Timers	16-bit Timers	Input Capture Block/Channels	Max QTouch/QMatrix Channels	PWM Channels	Enhanced PWM	USB	SPI	TWI	USART	CAN	LIN	10-bit A/D Single-Ended Channels	Analog Comparator	10-bit D/A Channels	Temp. Sensor	Interrupts + Reset Vectors	Ext Interrupts	LCD (segments)	Brown Out Detector	xtal Osc High/Low Speed	On-chip RC Oscillator	Watchdog w/RC Osc.	PLL/Prescaler	picoPower	MIPS	F.max (MHz)	Vcc (V)	Max I/O Pins
AT90CAN128	8-bit	Yes	128	included	Yes	Yes	4K	4K	JTAG	Yes	2	2	2/3	16/64	7	no	0	1	1	2	1	0	8	1	0	no	37	8	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	2.7 - 5.5	53
AT90CAN32	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	2	2/3	16/64	7	no	0	1	1	2	1	0	8	1	0	no	37	8	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	2.7 - 5.5	53
AT90CAN64	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	2	2/3	16/64	7	no	0	1	1	2	1	0	8	1	0	no	37	8	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	2.7 - 5.5	53
AT90PWM1	8-bit	Yes	8	included	Yes	Yes	512	512	DebugWire	no	1	1+PSC	1/2	8/-	7	Yes	0	1	0	0	0	0	8	2	0	no	26	4	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7-5.5	19
AT90PWM216	8-bit	Yes	16	included	Yes	Yes	512	1K	DebugWire	no	1	1+PSC	1/2	12/-	7	Yes	0	1	0	1	0	0	8	2	1	no	29	4	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7-5.5	19	SOIC 24
AT90PWM2B	8-bit	Yes	8	included	Yes	Yes	512	512	DebugWire	no	1	1+PSC	1/2	8/-	7	Yes	0	1	0	1	0	0	8	2	1	no	29	4	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7-5.5	19
AT90PWM316	8-bit	Yes	16	included	Yes	Yes	512	1K	DebugWire	no	1	1+PSC	1/2	12/-	12	Yes	0	1	0	1	0	0	11	3	1	no	29	4	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7-5.5	27	VQFN (Punched) 32 SOIC 32
AT90PWM3B	8-bit	Yes	8	included	Yes	Yes	512	512	DebugWire	no	1	1+PSC	1/2	8/-	12	Yes	0	1	0	1	0	0	11	3	1	no	29	4	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7-5.5	27	VQFN (Punched) 32 SOIC 32
AT90PWM81	8-bit	Yes	8	included	Yes	Yes	512	256	DebugWire	no	0	1+PSC	1/1	-/-	6	Yes	0	1	0	0	0	0	11	3	1	Yes	20	3	no	Yes	H	128KHz + cal 1/8MHz	Yes	yes/yes	no	16	16	2.7-5.5	20	QFN 32 SO 20
AT90USB1286	8-bit	Yes	128	included	Yes	Yes	4K	8K	JTAG	Yes	2	2	1/2	16/64	9	no	LS/FS device	1+1 USART master	1	1	0	0	8	1	0	no	38	16	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7-5.5	48	TQFP 64 VQFN (Sawn) 64
AT90USB1287	8-bit	Yes	128	included	Yes	Yes	4K	8K	JTAG	Yes	2	2	1/2	16/64	9	no	LS/FS device + OTG	1+1 USART master	1	1	0	0	8	1	0	no	38	16	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7 - 5.5	48	TQFP 64 VQFN (Sawn) 64
AT90USB162	8-bit	no	16	included	Yes	Yes	512	512	DebugWire	no	1	1	1/2	-/8	4	no	FS device	1+1 USART master	0	1	0	0	0	1	0	no	29	21	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7 - 5.5	22	VQFN (Sawn) 32 TQFP 32
AT90USB646	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	2	1/2	16/64	9	no	LS/FS device	1+1 USART master	1	1	0	0	8	1	0	no	38	16	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7-5.5	48	TQFP 64 VQFN (Sawn) 64
AT90USB647	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	2	1/2	16/64	9	no	LS/FS device + OTG	1+1 USART master	1	1	0	0	8	1	0	no	38	16	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7-5.5	48	TQFP 64 VQFN (Sawn) 64
AT90USB82	8-bit	no	8	included	Yes	Yes	512	512	DebugWire	no	1	1	1/2	12/8	4	no	FS device	1+1 USART master	0	1	0	0	0	1	0	no	29	21	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7 - 5.5	22	VQFN (Sawn) 32 TQFP 32
ATmega128	8-bit	Yes	128	included	Yes	Yes	4K	4K	JTAG	Yes	2	2	1/2	16/-	7	no	0	1	1	2	0	0	8	1	0	no	35	8	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	53	TQFP 64 MLF (VQFN) 64
ATmega1280	8-bit	Yes	128	included	Yes	Yes	4K	8K	JTAG	Yes	2	4	4/5	16/64	15	no	0	1+4 USART master	1	4	0	0	16	1	0	no	57	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	86
ATmega1281	8-bit	Yes	128	included	Yes	Yes	4K	8K	JTAG	Yes	2	4	2/3	16/64	8	no	0	1+2 USART master	1	2	0	0	8	1	0	no	48	17	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	54
ATmega1284	8-bit	Yes	128	included	Yes	Yes	4K	16K	JTAG	Yes	2	1	1/2	16/-	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8 - 5.5	32	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega1284P	8-bit	Yes	128	included	Yes	Yes	4K	16K	JTAG	Yes	2	1	1/2	16/-	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8 - 5.5	32	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega128A	8-bit	Yes	128	included	Yes	Yes	4K	4K	JTAG	Yes	2	2	1/2	16/-	7	no	0	1	1	2	0	0	8	1	0	no	35	8	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	53	TQFP 64 MLF (VQFN) 64
ATmega16	8-bit	Yes	16	included	Yes	Yes	512	1K	JTAG	Yes	2	1	1/2	16/32	4	no	0	1	1	1	0	0	8	1	0	no	21	3	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	32	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega162	8-bit	Yes	16	included	Yes	Yes	512	1K	JTAG	Yes	2	2	1/2	16/-	6	no	0	1	0	2	0	0	0	1	0	no	28	3	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	35	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega164A	8-bit	Yes	16	included	Yes	Yes	512	1K	JTAG	Yes	2	1	1/2	16/64	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	32	MLF (VQFN) 44 PDIP 40 QFN 44 TQFP 44 VFBGA 49
ATmega164P	8-bit	Yes	16	included	Yes	Yes	512	1K	JTAG	Yes	2	1	1/2	16/64	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	32	MLF (VQFN) 44 PDIP 40 QFN 44 TQFP 44
ATmega164PA	8-bit	Yes	16	included	Yes	Yes	512	1K	JTAG	Yes	2	1	1/2	16/64	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	32	MLF (VQFN) 44 PDIP 40 QFN 44 TQFP 44 VFBGA 49
ATmega165P	8-bit	Yes	16	included	Yes	Yes	512	1K	JTAG	Yes	2	1	1/2	16/64	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	22	17	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	Yes	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega165PA	8-bit	Yes	16	included	Yes	Yes	512	1K	JTAG	Yes	2	1	1/2	16/64	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	22	17	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	Yes	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega168	8-bit	Yes	16	included	Yes	Yes	512	1K	DebugWire	Yes	2	1	1/2	16/64	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	23	MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega168A	8-bit	Yes	16	included	Yes	Yes	512	1K	DebugWire	Yes	2	1	1/2	16/64	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	23	UFBGA 32 (6x6) MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega168P	8-bit	Yes	16	included	Yes	Yes	512	1K	DebugWire	Yes	2	1	1/2	16/64	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	23	MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega168PA	8-bit	Yes	16	included	Yes	Yes	512	1K	DebugWire	Yes	2	1	1/2	16/64	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	23	UFBGA 32 (6x6) MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega169A	8-bit	Yes	16	included	Yes	Yes	512	1K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	4*25	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64 QFN 64
ATmega169P	8-bit	Yes	16	included	Yes	Yes	512	1K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	4*25	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	Yes	16	16	1.8-5.5	54	TQFP 64 QFN 64
ATmega169PA	8-bit	Yes	16	included	Yes	Yes	512	1K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	4*25	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	Yes	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64 QFN 64
ATmega16A	8-bit	Yes	16	included	Yes	Yes	512	1K	JTAG	Yes	2	1	1/2	16/32	4	no	0	1	1	1	0	0	8	1	0	no	21	3	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	32	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega16M1	8-bit	Yes	16	included	Yes	Yes	512	1K	DebugWire	no	1	1	1/3	12/-	10	Yes	0	1	0	1 (LIN)	1	1	11	4	1	Yes	31	27	no	Yes	H/L	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7 - 5.5	27	MLF (VQFN) 32 TQFP 32
ATmega16U2	8-bit	no	16	included	Yes	Yes	512	512	DebugWire	no	1	1	1/2	12/-	4	no	FS device	1+1 USART master	0	1	0	0	0	1	0	no	29	21	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7 - 5.5	22	VQFN (Sawn) 32 TQFP 32
ATmega16U4	8-bit	Yes	16	included	Yes	Yes	512	1.25K + 832	JTAG	no	1 + 1 10-bit	2	1/2	14/-	8	Yes	LS/FS device	1+1 USART master	1	1	0	0	12	1	0	Yes	43	13	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7 - 5.5	26	TQFP 44 VQFN (Sawn) 44
ATmega2560	8-bit	Yes	256	included	Yes	Yes	4K	8K	JTAG	Yes	2	4	4/5	-/-	15	no	0	1+4 USART master	1	4	0	0	16	1	0	no	57	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	86	TQFP 100
ATmega2561	8-bit	Yes	256	included	Yes	Yes	4K	8K	JTAG	Yes	2	4	2/3	-/-	8	no	0	1+2 USART master	1	2	0	0	8	1	0	no	48	17	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega32	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1	1	1	0	0	8	1	0	no	21	3	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	32	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega324A	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/64	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	32	MLF (VQFN) 44 PDIP 40 QFN 44 TQFP 44 VFBGA 49
ATmega324P	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/64	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	32	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega324PA	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/64	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	32	MLF (VQFN) 44 PDIP 40 QFN 44 TQFP 44 VFBGA 49
ATmega325	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/64	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega3250	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	25	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	69	TQFP 100
ATmega3250A	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	25	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	69	TQFP 100
ATmega3250P	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	25	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	69	TQFP 100
ATmega325A	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/64	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega325P	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/64	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega325PA	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/64	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega328	8-bit	Yes	32	included	Yes	Yes	1K	2K	DebugWire	Yes	2	1	1/2	16/64	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	23	MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega328P	8-bit	Yes	32	included	Yes	Yes	1K	2K	DebugWire	Yes	2	1	1/2	16/64	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	23	MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega329	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	4*25	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega3290	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	32	4*40	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	69	TQFP 100
ATmega3290A	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	32	4*40	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	69	TQFP 100
ATmega3290P	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	32	4*40	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	69	TQFP 100
ATmega329A	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	4*25	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega329P	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	4*25	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega329PA	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	4*25	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega32A	8-bit	Yes	32	included	Yes	Yes	1K	2K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1	1	1	0	0	8	1	0	no	21	3	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	32	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega32M1	8-bit	Yes	32	included	Yes	Yes	1K	2K	DebugWire	no	1	1	1/3	12/-	10	Yes	0	1	0	1 (LIN)	1	1	11	4	1	Yes	31	27	no	Yes	H/L	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7 - 5.5	27	MLF (VQFN) 32 TQFP 32
ATmega32U2	8-bit	no	32	included	Yes	Yes	1K	1K	DebugWire	no	1	1	1/2	12/-	4	no	FS device	1+1 USART master	0	1	0	0	0	1	0	no	29	20	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7 - 5.5	22	VQFN (Sawn) 32 TQFP 32
ATmega32U4	8-bit	Yes	32	included	Yes	Yes	1K	2.5K + 832	JTAG	no	1 + 1 10-bit	2	1/2	14/-	8	Yes	LS/FS device	1+1 USART master	1	1	0	0	12	1	0	Yes	43	13	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7 - 5.5	26	TQFP 44 VQFN (Sawn) 44
ATmega48	8-bit	Yes	4	no	Yes	no	256	512	DebugWire	Yes	2	1	1/2	12/16	6	no	0	1+1 USART master	1	1	0	0	8	1	0	yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	23	MLF (VQFN) 28 MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega48A	8-bit	Yes	4	no	Yes	no	256	512	DebugWire	Yes	2	1	1/2	12/16	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	23	MLF (VQFN) 28 UFBGA 32 (6x6) MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega48P	8-bit	Yes	4	no	Yes	no	256	512	DebugWire	Yes	2	1	1/2	12/16	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	23	MLF (VQFN) 28 MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega48PA	8-bit	Yes	4	no	Yes	no	256	512	DebugWire	Yes	2	1	1/2	12/16	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	23	MLF (VQFN) 28 UFBGA 32 (6x6) MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega64	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	2	1/2	16/-	7	no	0	1	1	2	0	0	8	1	0	no	35	8	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	53	TQFP 64 MLF (VQFN) 64
ATmega640	8-bit	Yes	64	included	Yes	Yes	4K	8K	JTAG	Yes	2	4	4/5	16/-	15	no	0	1+4 USART master	1	4	0	0	16	1	0	no	57	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	86
ATmega644	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/64	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8 - 5.5	32	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega644A	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/64	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8 - 5.5	32	MLF (VQFN) 44 PDIP 40 QFN 44 TQFP 44 VFBGA 49
ATmega644P	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/64	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8 - 5.5	32	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega644PA	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/64	6	no	0	1+2 USART master	1	2	0	0	8	1	0	no	31	32	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8 - 5.5	32	MLF (VQFN) 44 PDIP 40 QFN 44 TQFP 44 VFBGA 49
ATmega645	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/64	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega6450	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	-/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	25	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	69	TQFP 100
ATmega6450A	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	-/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	25	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	69	TQFP 100
ATmega6450P	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	-/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	25	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	69	TQFP 100
ATmega645A	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/64	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega645P	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/64	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	no	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	Yes	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega649	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	4*25	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega6490	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	32	4*40	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	69	TQFP 100
ATmega6490A	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	32	4*40	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	69	TQFP 100
ATmega6490P	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	25	32	4*40	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	69	TQFP 100
ATmega649A	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	4*25	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	no	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega649P	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	1	1/2	16/-	4	no	0	1+1 USI	1 USI	1	0	0	8	1	0	no	23	17	4*25	Yes	H/L	1MHz + cal 8MHz	Yes	no/yes	Yes	16	16	1.8-5.5	54	TQFP 64 MLF (VQFN) 64
ATmega64A	8-bit	Yes	64	included	Yes	Yes	2K	4K	JTAG	Yes	2	2	1/2	16/-	7	no	0	1	1	2	0	0	8	1	0	no	35	8	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	53	TQFP 64 MLF (VQFN) 64
ATmega64M1	8-bit	Yes	64	included	Yes	Yes	2K	4K	DebugWire	no	1	1	1/3	12/-	10	Yes	0	1	0	1 (LIN)	1	1	11	4	1	Yes	31	27	no	Yes	H/L	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7 - 5.5	27	MLF (VQFN) 32 TQFP 32
ATmega8	8-bit	Yes	8	included	Yes	Yes	512	1K	no	Yes	2	1	1/2	12/-	3	no	0	1	1	1	0	0	8	1	0	no	19	2	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	23	MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega8515	8-bit	Yes	8	included	Yes	Yes	512	512	no	no	1	1	1/2	16/-	3	no	0	1	0	1	0	0	0	0	0	no	17	3	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	35	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega8535	8-bit	Yes	8	included	Yes	Yes	512	512	no	Yes	2	1	1/2	16/16	3	no	0	1	1	1	0	0	8	1	0	no	21	3	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	32	MLF (VQFN) 44 PDIP 40 TQFP 44
ATmega88	8-bit	Yes	8	included	Yes	Yes	512	1K	DebugWire	Yes	2	1	1/2	12/32	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	23	MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega88A	8-bit	Yes	8	included	Yes	Yes	512	1K	DebugWire	Yes	2	1	1/2	12/32	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	no	20	20	1.8-5.5	23	UFBGA 32 (6x6) MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega88P	8-bit	Yes	8	included	Yes	Yes	512	1K	DebugWire	Yes	2	1	1/2	12/32	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	23	MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega88PA	8-bit	Yes	8	included	Yes	Yes	512	1K	DebugWire	Yes	2	1	1/2	12/32	6	no	0	1+1 USART master	1	1	0	0	8	1	0	Yes	26	24	no	Yes	H/L	128KHz + cal 8MHz	Yes	no/yes	Yes	20	20	1.8-5.5	23	MLF (VQFN) 28 UFBGA 32 (6x6) MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega8A	8-bit	Yes	8	included	Yes	Yes	512	1K	no	Yes	2	1	1/2	12/-	3	no	0	1	1	1	0	0	8	1	0	no	19	2	no	Yes	H/L	1MHz + cal 1/2/4/8MHz	Yes	no/yes	no	16	16	2.7-5.5	23	MLF (VQFN) 32 PDIP 28 TQFP 32
ATmega8U2	8-bit	no	8	included	Yes	Yes	512	512	DebugWire	no	1	1	1/2	-/-	4	no	FS device	1+1 USART master	0	1	0	0	0	1	0	no	29	20	no	Yes	H	128KHz + cal 8MHz	Yes	yes/yes	no	16	16	2.7 - 5.5	22	VQFN (Sawn) 32 TQFP 32

	AVR Core	Flash (Kbytes)	ISP	Self Program Memory	EEPROM (Bytes)	SRAM (Bytes)	Debug	RTC w/Osc.	8-bit Timers	16-bit Timers	Input Capture Block/Channels	Max QTouch/QMatrix Channels	PWM Channels	Enhanced PWM	SPI	TWI	USART	IrDA Support/ ISO7816	LIN	10-bit A/D Single-Ended Channels	Analog Comparator	Temp. Sensor	Interrupts + Reset Vectors	Ext Interrupts	xtal Osc High/Low Speed	On Chip Oscillator	Watchdog w/RC Osc.	PLL/Prescaler	picoPower	MIPS	F.max (MHz)	Vcc (V)	Max I/O Pins
ATtiny10	8-bit	1	yes	no	0	32	no	no	no	1	1/2	1/-	2	no	0	0	0	no/no	0	4x 8-bit	1	no	11	4	no	128KHz + cal 8 MHz	yes	no/yes	no	12	12	1.8-5.5	4	SOT23 6 UDFN / USON 8
ATtiny13	8-bit	1	Yes	Yes	64	64	DebugWire	no	1	no	0/0	-/-	2	no	0	0	0	no/no	0	4	1	no	10	6	no	128KHz + cal 4.8 / 9.6 MHz	Yes	no/yes	no	20	20	1.8-5.5	6	MLF (VDFN) 10 PDIP 8 MLF (WQFN) 20 SOIC (150mil) 8 SOIC (208mil) 8
ATtiny13A	8-bit	1	yes	yes	64	64	DebugWire	no	1	no	0/0	-/-	2	no	0	0	0	no/no	0	4	1	no	10	6	no	128KHz + cal 4.8 / 9.6 MHz	yes	no/yes	yes	20	20	1.8-5.5	6	MLF (VDFN) 10 PDIP 8 MLF (WQFN) 20 SOIC (150mil) 8 SOIC (208mil) 8
ATtiny167	8-bit	16	yes	yes	512	512	DebugWire	yes	1	1	1/2	8/8	9	yes	1+1 USI	1 USI	1 (LIN)	no/no	1	11	1	yes	20	16	H/L	128KHz + cal 8 MHz	yes	no/yes	no	16	16	1.8 - 5.5	16	VQFN (Sawn) 32 TSSOP 20 SOIC 20
ATtiny20	8-bit	2	yes	no	0	128	no	no	1	1	1/2	5/-	3	no	1	1 slave	0	no/no	0	8	1	yes	17	12	no	128KHz + cal 8 MHz	yes	no/yes	no	12	12	1.8-5.5	12	UFBGA 15 TSSOP 14 SOIC (150mil) 14 VQFN 20
ATtiny2313	8-bit	2	Yes	Yes	128	128	DebugWire	no	1	1	1/2	-/-	4	no	1 USI + 1 USART master	1 USI	1	no/no	0	0	1	no	19	18	H	128KHz + cal 4 / 8 MHz	Yes	no/yes	no	20	20	1.8-5.5	18	PDIP 20 MLF (WQFN) 20 SOIC (300mil) 20
ATtiny2313A	8-bit	2	yes	yes	128	128	DebugWire	no	1	1	1/2	-/-	4	NO	1 USI + 1 USART master	1 USI	1	no/no	0	0	1	no	21	18	H	128KHz + cal 4 / 8 MHz	yes	no/yes	yes	20	20	1.8-5.5	18	PDIP 20 MLF (WQFN) 20 SOIC (300mil) 20 VQFN 20
ATtiny24	8-bit	2	Yes	Yes	128	128	DebugWire	no	1	1	1/2	-/-	4	no	1 USI	1 USI	0	no/no	0	8	1	Yes	17	12	H/L	128KHz + cal 8 MHz	Yes	no/yes	no	20	20	1.8-5.5	12	PDIP 14 SOIC (150mil) 14 MLF (WQFN) 20
ATtiny24A	8-bit	2	yes	yes	128	128	DebugWire	no	1	1	1/2	-/-	4	no	1 USI	1 USI	0	no/no	0	8	1	yes	17	12	H/L	128KHz + cal 8 MHz	yes	no/yes	yes	20	20	1.8-5.5	12	UFBGA 15 PDIP 14 SOIC (150mil) 14 MLF (WQFN) 20 VQFN 20
ATtiny25	8-bit	2	yes	yes	128	128	DebugWire	no	2	no	0/0	-/-	4	yes	1 USI	1 USI	0	no/no	0	4	1	yes	15	6	H/L	128KHz + cal 6.4 / 8 MHz	yes	yes/yes	no	20	20	1.8-5.5	6	PDIP 8 MLF (WQFN) 20 SOIC (150mil) 8 SOIC (208mil) 8
ATtiny26	8-bit	2	Yes	no	128	128	DebugWire	no	2	0	0/0	-/-	4	no	1 USI	1 USI	0	no/no	0	11	1	no	12	11	H/L	1MHz + cal 1/2/4/8MHz	Yes	yes/yes	no	16	16	2.7-5.5	16	MLF (VQFN) 32 PDIP 20 SOIC (300mil) 20
ATtiny261	8-bit	2	Yes	Yes	128	128	DebugWire	no	1	1	1/2	-/-	6	Yes	1 USI	1 USI	0	no/no	0	11	1	Yes	19	16	H/L	128KHz + cal 8 MHz	Yes	Yes/Yes	no	20	20	1.8 - 5.5	16	MLF (VQFN) 32 PDIP 20 SOIC (300mil) 20
ATtiny261A	8-bit	2	yes	yes	128	128	DebugWire	no	1	1	1/2	-/-	6	yes	1 USI	1 USI	0	no/no	0	11	1	yes	19	16	H/L	128KHz + cal 8 MHz	yes	yes/yes	yes	20	20	1.8 - 5.5	16	MLF (VQFN) 32 PDIP 20 TSSOP 20 SOIC (300mil) 20
ATtiny28L	8-bit	2	no	no	0	32	no	no	1	no	0/0	-/-	0	no	0	0	0	yes/no	0	0	1	no	6	10	H/L	WDT oscillator + cal 1.2 MHz	yes	no/WDT	no	4	4	1.8-5.5	11
ATtiny4	8-bit	0.5	yes	no	0	32	no	no	no	1	1/2	1/-	2	no	0	0	0	no/no	0	0	1	no	11	4	no	128KHz + cal 8 MHz	yes	no/yes	no	12	12	1.8-5.5	4	SOT23 6 UDFN / USON 8
ATtiny40	8-bit	4	yes	no	0	256	no	no	1	1	1/1	12/-	2	no	1	1 slave	0	no/no	0	12	1	yes	18	18	no	128KHz + cal 8 MHz	yes	no/yes	no	12	12	1.8-5.5	18	TSSOP 20 SOIC (300mil) 20 VQFN 20
ATtiny4313	8-bit	4	yes	yes	256	256	DebugWire	no	1	1	1/2	-/-	4	no	1 USI + 1 USART master	1 USI	1	no/no	0	0	1	no	21	18	H	128KHz + cal 4 / 8 MHz	yes	no/yes	yes	20	20	1.8-5.5	18	PDIP 20 MLF (WQFN) 20 SOIC (300mil) 20 VQFN 20
ATtiny43U	8-bit	4	yes	yes	64	256	DebugWire	no	2	no	0/0	8/-	4	no	1 USI	1 USI	0	no/no	0	4	1	yes	16	16	no	128KHz + cal 8 MHz	yes	no/yes	Yes	8	8	0.7 - 5.5	16	MLF (WQFN) 20 SOIC (300mil) 20
ATtiny44	8-bit	4	Yes	Yes	256	256	DebugWire	no	1	1	1/2	6/8	4	no	1 USI	1 USI	0	no/no	0	8	1	Yes	17	12	H/L	128KHz + cal 8 MHz	Yes	no/yes	no	20	20	1.8-5.5	12	PDIP 14 SOIC (150mil) 14 MLF (WQFN) 20
ATtiny44A	8-bit	4	yes	yes	256	256	DebugWire	no	1	1	1/2	6/8	4	no	1 USI	1 USI	0	no/no	0	8	1	yes	17	12	H/L	128KHz + cal 8 MHz	yes	no/yes	yes	20	20	1.8-5.5	12	UFBGA 15 PDIP 14 SOIC (150mil) 14 MLF (WQFN) 20 VQFN 20
ATtiny45	8-bit	4	yes	yes	256	256	DebugWire	no	2	no	0/0	3/-	4	yes	1 USI	1 USI	0	no/no	0	4	1	yes	15	6	H/L	128KHz + cal 6.4 / 8 MHz	yes	yes/yes	no	20	20	1.8-5.5	6	PDIP 8 TSSOP 8 MLF (WQFN) 20 SOIC (208mil) 8
ATtiny461	8-bit	4	Yes	Yes	256	256	DebugWire	no	1	1	1/2	8/8	6	Yes	1 USI	1 USI	0	no/no	0	11	1	Yes	19	16	H/L	128KHz + cal 8 MHz	Yes	Yes/Yes	no	20	20	1.8 - 5.5	16	MLF (VQFN) 32 PDIP 20 SOIC (300mil) 20
ATtiny461A	8-bit	4	yes	yes	256	256	DebugWire	no	1	1	1/2	8/8	6	yes	1 USI	1 USI	0	no/no	0	11	1	yes	19	16	H/L	128KHz + cal 8 MHz	yes	yes/yes	yes	20	20	1.8 - 5.5	16	MLF (VQFN) 32 PDIP 20 TSSOP 20 SOIC (300mil) 20
ATtiny48	8-bit	4	yes	yes	64	256	DebugWire	no	1	1	1/2	12/8	2	no	1	1	0	no/no	0	8	1	yes	20	28	no	128KHz + cal 8 MHz	yes	no/yes	yes	12	12	1.8 - 5.5	24/28	MLF (VQFN) 28 UFBGA 32 (6x6) MLF (VQFN) 32 PDIP 28 TQFP 32
ATtiny5	8-bit	0.5	yes	no	0	32	no	no	no	1	1/2	1/-	2	no	0	0	0	no/no	0	4x 8-bit	1	no	11	4	no	128KHz + cal 8 MHz	yes	no/yes	no	12	12	1.8-5.5	4	SOT23 6 UDFN / USON 8
ATtiny84	8-bit	8	yes	yes	512	512	DebugWire	no	1	1	1/2	6/8	4	no	1 USI	1 USI	0	no/no	0	8	1	yes	17	12	H/L	128KHz + cal 8 MHz	yes	no/yes	no	20	20	1.8-5.5	12	PDIP 14 SOIC (150mil) 14 MLF (WQFN) 20
ATtiny85	8-bit	8	yes	yes	512	512	DebugWire	no	2	no	0/0	3/-	4	yes	1 USI	1 USI	0	no/no	0	4	1	yes	15	6	H/L	128KHz + cal 6.4 / 8 MHz	yes	yes/yes	no	20	20	1.8-5.5	6	PDIP 8 MLF (WQFN) 20 SOIC (208mil) 8
ATtiny861	8-bit	8	Yes	Yes	512	512	DebugWire	no	1	1	1/2	8/8	6	Yes	1 USI	1 USI	0	no/no	0	11	1	Yes	19	16	H/L	128KHz + cal 8 MHz	Yes	Yes/Yes	no	20	20	1.8 - 5.5	16	MLF (VQFN) 32 PDIP 20 SOIC (300mil) 20
ATtiny861A	8-bit	8	yes	yes	512	512	DebugWire	no	1	1	1/2	8/8	6	yes	1 USI	1 USI	0	no/no	0	11	1	yes	19	16	H/L	128KHz + cal 8 MHz	yes	yes/yes	yes	20	20	1.8 - 5.5	16	MLF (VQFN) 32 PDIP 20 TSSOP 20 SOIC (300mil) 20
ATtiny87	8-bit	8	yes	yes	512	512	DebugWire	yes	1	1	1/2	-/-	9	yes	1+1 USI	1 USI	1 (LIN)	no/no	1	11	1	yes	20	16	H/L	128KHz + cal 8 MHz	yes	no/yes	no	16	16	1.8 - 5.5	16	VQFN (Sawn) 32 TSSOP 20 SOIC 20
ATtiny88	8-bit	8	yes	yes	64	512	DebugWire	no	1	1	1/2	12/16	2	no	1	1	0	no/no	0	8	1	yes	20	28	no	128KHz + cal 8 MHz	yes	no/yes	yes	12	12	1.8 - 5.5	24/28	MLF (VQFN) 28 UFBGA 32 (6x6) MLF (VQFN) 32 PDIP 28 TQFP 32
ATtiny9	8-bit	1	yes	no	0	32	no	no	no	1	1/2	1/-	2	no	0	0	0	no/no	0	0	1	no	11	4	no	128KHz + cal 8 MHz	yes	no/yes	no	12	12	1.8-5.5	4	SOT23 6 UDFN / USON 8