1. Pin Configurations
Figure 1-1.
TQFP-pinout ATmega640/1280/2560
PK2 (ADC10/PCINT18)
PK3 (ADC11/PCINT19)
PK4 (ADC12/PCINT20)
PK5 (ADC13/PCINT21)
PK6 (ADC14/PCINT22)
PF6 (ADC6/TDO)
PF7 (ADC7/TDI)
PK7 (ADC15/PCINT23)
PK0 (ADC8/PCINT16)
PF5 (ADC5/TMS)
PF4 (ADC4/TCK)
PK1 (ADC9/PCINT17)
PF1 (ADC1)
PF2 (ADC2)
PF0 (ADC0)
PF3 (ADC3)
PA0 (AD0)
PA1 (AD1)
100 99
(OC0B) PG5
(RXD0/PCINT8) PE0
(TXD0) PE1
(XCK0/AIN0) PE2
(OC3A/AIN1) PE3
(OC3B/INT4) PE4
(OC3C/INT5) PE5
(T3/INT6) PE6
(CLKO/ICP3/INT7) PE7
VCC
GND
(RXD2) PH0
(TXD2) PH1
(XCK2) PH2
(OC4A) PH3
(OC4B) PH4
(OC4C) PH5
(OC2B) PH6
(SS/PCINT0) PB0
(SCK/PCINT1) PB1
(MOSI/PCINT2) PB2
(MISO/PCINT3) PB3
(OC2A/PCINT4) PB4
(OC1A/PCINT5) PB5
(OC1B/PCINT6) PB6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
(OC0A/OC1C/PCINT7) PB7
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
PA2 (AD2)
AVCC
AREF
GND
GND
VCC
PJ7
76
75
74
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)
INDEX CORNER
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
27
(T4) PH7
28
(TOSC2) PG3
29
(TOSC1) PG4
30
RESET
31
VCC
32
GND
33
XTAL2
34
XTAL1
35
(ICP4) PL0
36
(ICP5) PL1
37
(T5) PL2
38
(OC5A) PL3
39
(OC5B) PL4
40
(OC5C) PL5
41
PL6
42
PL7
43
(SCL/INT0) PD0
44
(SDA/INT1) PD1
45
(RXD1/INT2) PD2
46
(TXD1/INT3) PD3
47
(ICP1) PD4
48
(XCK1) PD5
49
(T1) PD6
50
(T0) PD7
2
ATmega640/1280/1281/2560/2561
2549LS–AVR–08/07
ATMEL [ ATMEL CORPORATION ]
