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PEN
1
PE0 (RXD0/PDI)
2
PE1 (TXD0/PDO)
3
PE2 (XCK0/AIN0)
4
PE3 (OC3A/AIN1)
5
PE4 (OC3B/INT4)
6
PE5 (OC3C/INT5)
7
PE6 (T3/INT6)
8
PE7 (IC3/INT7)
9
PB0 (SS)
10
PB1 (SCK)
11
PB2 (MOSI)
12
PB3 (MISO)
13
PB4 (OC0)
14
PB5 (OC1A)
15
PB6 (OC1B)
16
PB7 (OC2/OC1C)
17
TOSC2/PG3
18
TOSC1/1PG4
19
RESET
20
VCC
21
GND
22
XTAL2
23
XTAL1
24
PD0 (SCL/INT0)
25
PD1 (SDA/INT1)
26
PD2 (RXD1/INT2)
27
PD3 (TXD1/INT3)
28
PD4 (IC1)
29
PD5 (XCK1)
30
PD6 (T1)
31
PD7 (T2)
32
PG0 (WR)
33
PG1 (RD)
34
PC0 (A8)
35
PC1 (A9)
36
PC2 (A10)
37
PC3 (A11)
38
PC4 (A12)
39
PC5 (A13)
40
PC6 (A14)
41
PC7 (A15)
42
PG2 (ALE)
43
PA7 (AD7)
44
PA6 (AD6)
45
PA5 (AD5)
46
PA4 (AD4)
47
PA3 (AD3)
48
PA2 (AD2)
49
PA1 (AD1)
50
PA0 (AD0)
51
VCC
52
GND
53
PF7 (ADC7/TDI)
54
PF6 (ADC6/TDO)
55
PF5 (ADC5/TMS)
56
PF4 (ADC4/TCK)
57
PF3 (ADC3)
58
PF2 (ADC2)
59
PF1 (ADC1)
60
PF0 (ADC0)
61
AREF
62
GND
63
AVCC
64
U1
ATmega128-16AI
1 2
3 4
5 6
7 8
9 10
P1
ISP
1 2
3 4
5 6
7 8
9 10
P2
JTAG
100R1
100R2
100R3
1
2
3
4
5
6
7
8
9
11
10
serial0
1
2
3
4
5
6
7
8
9
11
10
serial1
1
2
3
4
5
6
7
8
PA
1
2
3
4
5
6
7
8
PB
1
2
3
4
5
6
7
8
PC
1
2
3
4
5
6
7
8
PD
1
2
3
4
5
6
7
8
PE
1
2
3
4
5
6
7
8
PF
12
34
56
KEY
VCC
1K
R4
12
Led
VCC
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PF7
PF6
PF5
PF4
PF3
PF2
PF1
PF0
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
PG3
PG4
PG0
PG1
PG2
1
2
3
4
+5V
1
2
3
4
GNDVCC
1
2
3
ADC
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
PF7
PF6
PF5
PF4
PF3
PF2
PF1
PF0
PG0
PG1
PG2
PG3
PG4
AVCC
AREF
PEN
PEN
AVCC
AREF
RESET
RESET
RESET
REST
10K
R5 10uF
C1
VCC
RESET
VCC
PE0
PB1
PE1
PF4
PF6
PF5
PF7
12
7.3728M
27
C2
27
C3
C1+
1
VS+
2
C1-
3
C2+
4
C2-
5
VS-
6
T2OUT
7
R2IN
8
R2OUT
9
T2IN
10
T1IN
11
R1OUT
12
R1IN
13
T1OUT
14
GND
15
VCC
16
MAX232
10uF
C4
10uF
C6
10uFC7
10uFC810uF
C5
T2OUT
R2IN
PE0
PE1 PE2
PE3 PE4
PE5 PE6
PE7 PB0
PB1 PB2
PB3 PB4
PB5 PB6
PB7 PG3
PG4
XTAL1XTAL2
PD0 PD1
PD2 PD3
PD4 PD5
PD6 PD7
PG0 PG1
PC0 PC1
PC2 PC3
PC4 PC5
PC6 PC7
PG2
PA3PA4
PA5PA6
PA7
PA0
PA1PA2
PF0
PF1PF2
PF3PF4
PF5PF6
PF7
AREF
AVCC
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
P11
Header 8X2
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
P12
Header 8X2
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
P13
Header 8X2
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
P14
Header 8X2
RESET
PEN
XTAL2
XTAL1
VCC
VCC
T1OUT
R1IN
T2OUT
R2IN
T1OUT
R1IN PE0
PE1
PD2
PD3
VCC
S1 S2 S3 S4 S5
S6
S7 S8
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
12
LED1
VCC
12
LED2
12
LED3
12
LED4
12
LED5
12
LED6
12
LED7
12
LED8
1
2
3
4
5
6
7
8
P21
L0
L1
L2
L3
L4
L5
L6
L7
L0
L1
L2
L3
L4
L5
L6
L7
1 2
Y1
1
2
Power0
10K
R20
10K
R21
10K
R22
10K
R23
1 2
3 4
5 6
7 8
P111
VCC
PF4
PF6
PF5
PF7
1K
R01
1K
R02
1K
R03
1K
R04
1K
R05
1K
R06
1K
R07
1K
R08
1
2
3
4
5
6
PG
1
2
3
4
USB
VCC