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Part Series Datasheet Flash (Kbytes)
(Kbytes)
Pin Count Max. Operating Freq. (MHz)
(MHz)
CPU SRAM (Kbytes) EEPROM (Bytes) Max I\/O Pins picoPower Operating Voltage (Vcc) Temp. Range (deg C) # of Touch Channels Timers Watchdog 32kHz RTC Analog Comparators Temp. Sensor ADC Resolution (bits) ADC Channels DAC Channels UART SPI TWI (I2C) USB Interface PWM Channels Ethernet CAN
   
0
0.5
1
2
4
8
12
16
20
32
40
64
128
192
256
384
512
1024
2048
6
8
14
16
20
24
28
32
44
48
64
100
144
176
217
256
289
324
361
1
4
8
12
16
20
24
25
32
33
36
40
48
50
55
60
64
66
75
84
96
100
120
180
190
210
240
266
300
400
528
536
Cortex-M0+
Cortex-M3
Cortex-M4
Cortex-M7
Cortex-A5
8-bit AVR
32-bit AVR
ARM926
ARM920
ARM7TDMI
8051-1C
8051-12C
0.03
0.06
0.12
0.125
0.25
0.5
0.75
1
1.25
1.375
2
2.1
2.25
2.5
3.3
4
4.25
6
8
16
20
24
32
36
48
50
64
68
80
96
128
160
176
256
384
0
64
128
256
512
1024
2048
4096
8192
4
6
11
12
14
15
16
17
18
19
20
21
22
23
25
26
27
28
30
32
34
35
36
37
38
42
43
44
45
47
48
49
50
51
52
53
54
57
58
62
63
69
75
78
79
80
81
82
86
88
96
103
105
109
110
114
117
118
122
123
152
160
No
Yes
0.7 to 5.5
0.9 to 1.1
1.08 to 1.32
1.6 to 3.6
1.62 to 1.98
1.62 to 3.6
1.62 to 3.63
1.69 to 2.0
1.65 to 1.95
1.68 to 3.6
1.7 to 5.5
1.8 to 3.6
1.8 to 5.5
1.8 to 9.0
2.4 to 3.6
2.4 to 5.0
2.4 to 5.5
2.7 to 3.6
2.7 to 3.63
2.7 to 5.5
2.7 to 4.0
2.7 to 6.0
3.0 to 3.6
3.0 to 3.6 or 4.5 to 5.5
3.0 to 5.5
3.0-3.6 or (1.65-1.95+3.0-3.6)
4.0 to 25
4.0 to 5.5
4.0 to 6.0
-20 to 85
-30 to 85
-40 to 105
-40 to 125
-40 to 150
-40 to 85
0
1
3
4
5
6
8
11
12
13
14
16
17
21
23
25
28
31
32
56
60
72
96
110
120
182
192
256
1
2
3
4
5
6
7
8
9
10
14
No
Yes
0
1
2
3
4
8
No
Yes
10
12
16
8
3
4
5
6
7
8
10
11
12
14
15
16
20
24
28
0
1
2
4
0
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
10
12
0
1
2
3
4
5
6
Device
Device + OTG
Host, Device
No
0
2
3
4
6
7
8
9
10
12
13
14
15
16
18
19
20
22
24
35
36
0
1
2
0
1
2
AT90CAN128 128 64 16 8-bit AVR 4 4096 53 No 2.7 to 5.5 -40 to 85 16 4 Yes Yes 1 No 10 8 0 2 1 1 No 7 0 1
AT90CAN32 32 64 16 8-bit AVR 2 1024 53 No 2.7 to 5.5 -40 to 85 16 4 Yes Yes 1 No 10 8 0 2 1 1 No 7 0 1
AT90CAN64 64 64 16 8-bit AVR 4 2048 53 No 2.7 to 5.5 -40 to 85 16 4 Yes Yes 1 No 10 8 -- 2 1 1 No 7 0 1
AT90PWM1 8 24 16 8-bit AVR 0.5 512 19 No 2.7 to 5.5 -40 to 105 8 4 Yes No 2 No 10 8 -- 0 1 0 No 7 0 0
AT90PWM161 16 20 16 8-bit AVR 1 512 20 No 2.7 to 5.5 -40 to 125 -- 1 Yes No 3 Yes 10 11 1 0 1 0 No 6 0 0
AT90PWM216 16 24 16 8-bit AVR 1 512 19 No 2.7 to 5.5 -40 to 105 12 4 Yes No 2 No 10 8 1 1 1 0 No 7 0 0
AT90PWM2B 8 24 16 8-bit AVR 0.5 512 19 No 2.7 to 5.5 -40 to 105 8 4 Yes No 2 No 10 8 1 1 1 0 No 7 0 0
AT90PWM316 16 32 16 8-bit AVR 1 512 27 No 2.7 to 5.5 -40 to 105 12 5 Yes No 3 No 10 11 1 1 1 0 No 12 0 0
AT90PWM3B 8 32 16 8-bit AVR 0.5 512 27 No 2.7 to 5.5 -40 to 105 8 5 Yes No 3 No 10 11 1 1 1 0 No 12 0 0
AT90PWM81 8 20 16 8-bit AVR 0.25 512 20 No 2.7 to 5.5 -40 to 125 -- 1 Yes No 3 Yes 10 11 1 0 1 0 No 6 0 0
AT90USB1286 128 64 16 8-bit AVR 8 4096 48 No 2.7 to 5.5 -40 to 85 16 4 Yes Yes 1 No 10 8 -- 1 2 1 Device 9 0 0
AT90USB1287 128 64 16 8-bit AVR 8 4096 48 No 2.7 to 5.5 -40 to 85 16 4 Yes Yes 1 No 10 8 -- 1 2 1 Device + OTG 9 0 0
AT90USB162 16 32 16 8-bit AVR 0.5 512 22 No 2.7 to 5.5 -40 to 85 -- 2 Yes No 1 No -- -- 0 1 2 0 Device 4 0 0
AT90USB646 64 64 16 8-bit AVR 4 2048 48 No 2.7 to 5.5 -40 to 85 16 4 Yes Yes 1 No 10 8 -- 1 2 1 Device 9 0 0
AT90USB647 64 64 16 8-bit AVR 4 2048 48 No 2.7 to 5.5 -40 to 85 16 4 Yes Yes 1 No 10 8 0 1 2 1 Device + OTG 9 0 0
AT90USB82 8 32 16 8-bit AVR 0.5 512 22 No 2.7 to 5.5 -40 to 85 12 2 Yes No 1 No -- -- -- 1 2 0 Device 4 0 0
ATmega128 128 64 16 8-bit AVR 4 4096 53 No 2.7 to 5.5 -40 to 85 16 4 Yes Yes 1 No 10 8 -- 2 1 1 No 7 0 0
ATmega1280 128 100 16 8-bit AVR 8 4096 86 No 1.8 to 5.5 -40 to 85 16 6 Yes Yes 1 No 10 16 -- 4 5 1 No 15 0 0
ATmega1281 128 64 16 8-bit AVR 8 4096 54 No 1.8 to 5.5 -40 to 85 16 6 Yes Yes 1 No 10 8 0 2 3 1 No 8 0 0
ATmega1284 128 44 20 8-bit AVR 16 4096 32 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 2 3 1 No 6 0 0
ATmega1284P 128 44 20 8-bit AVR 16 4096 32 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 2 3 1 No 6 0 0
ATmega128A 128 64 16 8-bit AVR 4 4096 53 No 2.7 to 5.5 -40 to 85 16 4 Yes Yes 1 No 10 8 -- 2 1 1 No 7 0 0
ATmega16 16 44 16 8-bit AVR 1 512 32 No 2.7 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 1 1 No 4 0 0
ATMEGA162 16 44 16 8-bit AVR 1 512 35 No 1.8 to 5.5 -40 to 85 16 4 Yes Yes 1 No -- -- 0 2 1 0 No 6 0 0
ATmega164A 16 44 20 8-bit AVR 1 512 32 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 2 3 1 No 6 0 0
ATmega164P 16 44 20 8-bit AVR 1 512 32 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 2 3 1 No 6 0 0
ATmega164PA 16 44 20 8-bit AVR 1 512 32 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 2 3 1 No 6 0 0
ATmega165P 16 64 16 8-bit AVR 1 512 54 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega165PA 16 64 16 8-bit AVR 1 512 54 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega168 16 32 20 8-bit AVR 1 512 23 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 6 0 0
ATmega168A 16 32 20 8-bit AVR 1 512 23 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 Yes 10 8 -- 1 2 1 No 6 0 0
ATmega168P 16 32 20 8-bit AVR 1 512 23 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 Yes 10 8 -- 1 2 1 No 6 0 0
ATmega168PA 16 32 20 8-bit AVR 1 512 23 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 Yes 10 8 0 1 2 1 No 6 0 0
ATmega168PB 16 32 20 8-bit AVR 1 512 27 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 Yes 10 8 -- 1 2 1 No 6 0 0
ATmega169A 16 64 16 8-bit AVR 1 512 54 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega169P 16 64 16 8-bit AVR 1 512 54 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 2 1 No 4 0 0
ATmega169PA 16 64 16 8-bit AVR 1 512 54 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 2 1 No 4 0 0
ATmega16A 16 44 16 8-bit AVR 1 512 32 No 2.7 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 1 1 No 4 0 0
ATmega16M1 16 32 16 8-bit AVR 1 512 27 No 2.7 to 5.5 -40 to 85 12 2 Yes No 4 Yes 10 11 1 1 1 0 No 10 0 1
ATmega16U2 16 32 16 8-bit AVR 0.5 512 22 No 2.7 to 5.5 -40 to 85 12 2 Yes No 1 No -- -- -- 1 2 0 Device 4 0 0
ATmega16U4 16 44 16 8-bit AVR 2.1 512 26 No 2.7 to 5.5 -40 to 85 14 4 Yes No 1 Yes 10 12 -- 1 2 1 Device 8 0 0
ATmega2560 256 100 16 8-bit AVR 8 4096 86 No 1.8 to 5.5 -40 to 85 -- 6 Yes Yes 1 No 10 16 0 4 5 1 No 15 0 0
ATmega2561 256 64 16 8-bit AVR 8 4096 54 No 1.8 to 5.5 -40 to 85 -- 6 Yes Yes 1 No 10 8 0 2 3 1 No 8 0 0
ATmega32 32 44 16 8-bit AVR 2 1024 32 No 2.7 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 1 1 No 4 0 0
ATmega324A 32 44 20 8-bit AVR 2 1024 32 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 2 3 1 No 6 0 0
ATmega324P 32 44 20 8-bit AVR 2 1024 32 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 2 3 1 No 6 0 0
ATmega324PA 32 44 20 8-bit AVR 2 1024 32 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 2 3 1 No 6 0 0
ATmega325 32 64 16 8-bit AVR 2 1024 54 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega3250 32 100 16 8-bit AVR 2 1024 69 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega3250A 32 100 20 8-bit AVR 2 1024 69 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 2 1 No 4 0 0
ATmega3250P 32 100 20 8-bit AVR 2 1024 69 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega3250PA 32 100 20 8-bit AVR 2 1024 69 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega325A 32 64 20 8-bit AVR 2 1024 54 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 2 1 No 4 0 0
ATmega325P 32 64 20 8-bit AVR 2 1024 54 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega325PA 32 64 20 8-bit AVR 2 1024 54 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega328 32 32 20 8-bit AVR 2 1024 23 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 Yes 10 8 -- 1 2 1 No 6 0 0
ATmega328P 32 32 20 8-bit AVR 2 1024 23 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 Yes 10 8 -- 1 2 1 No 6 0 0
ATmega328PB 32 32 20 8-bit AVR 1 1024 27 Yes 1.8 to 5.5 -40 to 85 12 5 Yes Yes 1 Yes 10 8 0 2 2 2 No 10 0 0
ATmega329 32 64 16 8-bit AVR 2 1024 54 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega3290 32 100 16 8-bit AVR 2 1024 69 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega3290A 32 100 20 8-bit AVR 2 1024 69 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 2 1 No 4 0 0
ATmega3290P 32 100 20 8-bit AVR 2 1024 69 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega329A 32 64 20 8-bit AVR 2 1024 54 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega329P 32 64 20 8-bit AVR 2 1024 54 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega329PA 32 64 20 8-bit AVR 2 1024 54 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 2 1 No 4 0 0
ATmega32A 32 44 16 8-bit AVR 2 1024 32 No 2.7 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 1 1 No 4 0 0
ATmega32M1 32 32 16 8-bit AVR 2 1024 27 No 2.7 to 5.5 -40 to 85 12 2 Yes No 4 Yes 10 11 1 1 1 0 No 10 0 1
ATmega32U2 32 32 16 8-bit AVR 1 1024 22 No 2.7 to 5.5 -40 to 85 12 2 Yes No 1 No -- -- 0 1 2 0 Device 4 0 0
ATmega32U4 32 44 16 8-bit AVR 2.5 1024 26 No 2.7 to 5.5 -40 to 85 14 4 Yes No 1 Yes 10 12 -- 1 2 1 Device 8 0 0
ATmega48 4 32 20 8-bit AVR 0.5 256 23 No 1.8 to 5.5 -40 to 85 12 3 Yes Yes 1 No 10 8 -- 1 2 1 No 6 0 0
ATmega48A 4 32 20 8-bit AVR 0.5 256 23 No 1.8 to 5.5 -40 to 85 12 3 Yes Yes 1 Yes 10 8 -- 1 2 1 No 6 0 0
ATmega48P 4 32 20 8-bit AVR 0.5 256 23 Yes 1.8 to 5.5 -40 to 85 12 3 Yes Yes 1 Yes 10 8 -- 1 2 1 No 6 0 0
ATmega48PA 4 32 20 8-bit AVR 0.5 256 23 Yes 1.8 to 5.5 -40 to 85 12 3 Yes Yes 1 Yes 10 8 0 1 2 1 No 6 0 0
ATmega48PB 4 32 20 8-bit AVR 0.5 256 27 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 Yes 10 8 0 1 2 1 No 6 0 0
ATmega64 64 64 16 8-bit AVR 4 2048 53 No 2.7 to 5.5 -40 to 85 16 4 Yes Yes 1 No 10 8 -- 2 1 1 No 7 0 0
ATmega640 64 100 16 8-bit AVR 8 4096 86 No 1.8 to 5.5 -40 to 85 16 6 Yes Yes 1 No 10 16 0 4 5 1 No 15 0 0
ATmega644 64 44 20 8-bit AVR 4 2048 32 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 3 1 No 6 0 0
ATmega644A 64 44 20 8-bit AVR 4 2048 32 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 2 3 1 No 6 0 0
ATmega644P 64 44 20 8-bit AVR 4 2048 32 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 2 3 1 No 6 0 0
ATmega644PA 64 44 20 8-bit AVR 4 2048 32 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 2 3 1 No 6 0 0
ATmega645 64 64 16 8-bit AVR 4 2048 54 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega6450 64 100 16 8-bit AVR 4 2048 69 No 1.8 to 5.5 -40 to 85 -- 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega6450A 64 100 20 8-bit AVR 4 2048 69 No 1.8 to 5.5 -40 to 85 -- 3 Yes Yes 1 No 10 8 0 1 2 1 No 4 0 0
ATmega6450P 64 100 20 8-bit AVR 4 2048 69 Yes 1.8 to 5.5 -40 to 85 -- 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega645A 64 64 16 8-bit AVR 4 2048 54 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 2 1 No 4 0 0
ATmega645P 64 64 16 8-bit AVR 4 2048 54 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 2 1 No 4 0 0
ATmega649 64 64 16 8-bit AVR 4 2048 54 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 2 1 No 4 0 0
ATmega6490 64 100 16 8-bit AVR 4 2048 69 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega6490A 64 100 20 8-bit AVR 4 2048 69 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega6490P 64 100 20 8-bit AVR 4 2048 69 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 2 1 No 4 0 0
ATmega649A 64 64 16 8-bit AVR 4 2048 54 No 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega649P 64 64 16 8-bit AVR 4 2048 54 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 -- 1 2 1 No 4 0 0
ATmega64A 64 64 16 8-bit AVR 4 2048 53 No 2.7 to 5.5 -40 to 85 16 4 Yes Yes 1 No 10 8 -- 2 1 1 No 7 0 0
ATmega64M1 64 32 16 8-bit AVR 4 2048 27 No 2.7 to 5.5 -40 to 85 12 2 Yes No 4 Yes 10 11 1 1 1 0 No 10 0 1
ATmega8 8 32 16 8-bit AVR 1 512 23 No 2.7 to 5.5 -40 to 85 12 3 Yes Yes 1 No 10 8 0 1 1 1 No 3 0 0
ATmega8515 8 44 16 8-bit AVR 0.5 512 35 No 2.7 to 5.5 -40 to 85 16 2 Yes No -- No -- -- 0 1 1 0 No 3 0 0
ATmega8535 8 44 16 8-bit AVR 0.5 512 32 No 2.7 to 5.5 -40 to 85 16 3 Yes Yes 1 No 10 8 0 1 1 1 No 4 0 0
ATmega88 8 32 20 8-bit AVR 1 512 23 No 1.8 to 5.5 -40 to 85 12 3 Yes Yes 1 No 10 8 -- 1 2 1 No 6 0 0
ATmega88A 8 32 20 8-bit AVR 1 512 23 No 1.8 to 5.5 -40 to 85 12 3 Yes Yes 1 Yes 10 8 0 1 2 1 No 6 0 0
ATmega88P 8 32 20 8-bit AVR 1 512 23 Yes 1.8 to 5.5 -40 to 85 12 3 Yes Yes 1 Yes 10 8 0 1 2 1 No 6 0 0
ATmega88PA 8 32 20 8-bit AVR 1 512 23 Yes 1.8 to 5.5 -40 to 85 12 3 Yes Yes 1 Yes 10 8 -- 1 2 1 No 6 0 0
ATmega88PB 8 32 20 8-bit AVR 1 512 27 Yes 1.8 to 5.5 -40 to 85 16 3 Yes Yes 1 Yes 10 8 0 1 2 1 No 6 0 0
ATmega8A 8 32 16 8-bit AVR 1 512 23 No 2.7 to 5.5 -40 to 85 12 3 Yes Yes 1 No 10 8 -- 1 1 1 No 3 0 0
ATmega8U2 8 32 16 8-bit AVR 0.5 512 22 No 2.7 to 5.5 -40 to 85 -- 2 Yes No 1 No -- -- 0 1 2 0 Device 4 0 0
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