Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
PD3
1
Bi-Directional
GPIO
PD
Right
PD4
2
Bi-Directional
GPIO
PD
Right
GND
3
Power In
Power
Bottom
VCC
4
Power In
Power
Top
GND
5
Passive
Power
Bottom
VCC
6
Passive
Power
Top
PB6/XTAL1
7
Bi-Directional
GPIO
PB
Left
PB7/XTAL2
8
Bi-Directional
GPIO
PB
Left
PD5
9
Bi-Directional
GPIO
PD
Right
PD6
10
Bi-Directional
GPIO
PD
Right
PD7
11
Bi-Directional
GPIO
PD
Right
PB0
12
Bi-Directional
GPIO
PB
Right
PB1
13
Bi-Directional
GPIO
PB
Right
PB2
14
Bi-Directional
GPIO
PB
Right
PB3
15
Bi-Directional
GPIO
PB
Right
PB4
16
Bi-Directional
GPIO
PB
Right
PB5
17
Bi-Directional
GPIO
PB
Right
AVCC
18
Power In
Power
Top
ADC6
19
Input
Analog
Left
AREF
20
Passive
Analog
Left
AGND
21
Power In
Power
Bottom
ADC7
22
Input
Analog
Left
PC0
23
Bi-Directional
GPIO
PC
Right
ATmega8A-A
