Digital I/O 3 (Port 0)

Digital I/O 24 (Port 3)

Digital I/O 20 (Port 2)

Digital I/O 4 (Port 0)

Digital I/O 21 (Port 2)

Digital I/O 5 (Port 0)

Digital I/O 22 (Port 2)

Digital I/O 6 (Port 0)

Digital I/O 23 (Port 2)

Digital I/O 7 (Port0)

Digital I/O 8 (Port 1)

Power Out

Digital I/O 9 (Port 1)

Ground

Ground

Power In

Reference Voltage

Reset

Digital I/O 50

Digital I/O 49

Analog In 7

Analog In 6

Analog In 5

Analog In 4

Analog In 3

Analog In 2

Analog In 1

Analog In 0

Digital I/O 39 (Port 4)

Digital I/O 38 (Port 4)

Digital I/O 37 (Port 4)

Digital I/O 36 (Port 4)

Digital I/O 35 (Port 4)

Digital I/O 34 (Port 4)

Digital I/O 33 (Port 4) TX

Digital I/O 32 (Port 4) RX

Digital I/O 10 (Port 1)

Digital I/O 11 (Port 1)

Digital I/O 12 (Port 1)

Digital I/O 13 (Port 1)

Digital I/O 14 (Port 1)

Digital I/O 15 (Port 1)

Digital I/O 16 (Port 2)

Digital I/O 17 (Port 2)

Digital I/O 18 (Port 2)

Digital I/O 19 (Port 2)

Digital I/O 31 (Port 3)

Digital I/O 30 (Port 3)

Digital I/O 29 (Port 3)

Digital I/O 28 (Port 3)

Digital I/O 0 (Port 0)

Digital I/O 1 (Port 0) SDA

Digital I/O 27 (Port 3)

Digital I/O 26 (Port 3)

Digital I/O 2 (Port 0)