ATMEGA1281V ATMEL [ATMEL Corporation], ATMEGA1281V Datasheet - Page 2

• Manufacturer Part Number: ATMEGA1281V
• Description: 8-bit Atmel Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

1. Pin Configurations
Figure 1-1.
2549NS–AVR–05/11
(CLKO/ICP3/INT7) PE7
(OC2A/PCINT4) PB4
(OC1A/PCINT5) PB5
(OC1B/PCINT6) PB6
(RXD0/PCINT8) PE0
(MOSI/PCINT2) PB2
(MISO/PCINT3) PB3
(SCK/PCINT1) PB1
(OC3A/AIN1) PE3
(OC3B/INT4) PE4
(OC3C/INT5) PE5
(SS/PCINT0) PB0
(XCK0/AIN0) PE2
(T3/INT6) PE6
(OC0B) PG5
(OC4A) PH3
(OC4B) PH4
(OC4C) PH5
(OC2B) PH6
(RXD2) PH0
(TXD2) PH1
(XCK2) PH2
(TXD0) PE1
GND
VCC
TQFP-pinout ATmega640/1280/2560
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
7
8
9
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
26
27
28 29
INDEX CORNER
30
31
32
33 34
35
36
37
ATmega640/1280/1281/2560/2561
38 39 40 41 42 43 44 45 46 47 48 49 50
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
PA3 (AD3)
PA4 (AD4)
PA5 (AD5)
PA6 (AD6)
PA7 (AD7)
PG2 (ALE)
PJ6 (PCINT15)
PJ5 (PCINT14)
PJ4 (PCINT13)
PJ3 (PCINT12)
PJ2 (XCK3/PCINT11)
PJ1 (TXD3/PCINT10)
PJ0 (RXD3/PCINT9)
GND
VCC
PC7 (A15)
PC6 (A14)
PC5 (A13)
PC4 (A12)
PC3 (A11)
PC2 (A10)
PC1 (A9)
PC0 (A8)
PG1 (RD)
PG0 (WR)
2