Below is a table listing the pin numbers, pin names, and their functions for the ATMEGA32U4-AU microcontroller (U1):
Table
Pin Number
Pin Name
Function
1
PE6
General purpose IO
2
UVCC
USB voltage
3
D-
USB Data Negative
4
D+
USB Data Positive
5
UGND
USB Ground
6
UCAP
USB pad capacitor connection
7
VBUS
USB VBUS supply
8
PB0
General purpose IO/SPI SS
9
PB1
General purpose IO/CLKO
10
PB2
General purpose IO/SPI MOSI
11
PB3
General purpose IO/SPI MISO
12
PB7
General purpose IO/OC0A/OC1C/#RTS
13
~RESET
Reset pin
14
VCC
Positive supply voltage
15
GND
Ground
16
XTAL2
Crystal Oscillator 2
17
XTAL1
Crystal Oscillator 1
18
PD0
General purpose IO/RXD1
19
PD1
General purpose IO/TXD1
20
PD2
General purpose IO/INT2
21
PD3
General purpose IO/#OC0B/INT3
22
PD5
General purpose IO/OC3A/#CTS
23
GND
Ground
24
AVCC
Analog supply voltage
25
PD4
General purpose IO/ICP1/#OC0B
26
PD6
General purpose IO/OC4D/ADC9
27
PD7
General purpose IO/T0/OC4D
28
PB4
General purpose IO/ADC11
29
PB5
General purpose IO/ADC12/OC1A
30
PB6
General purpose IO/OC1B/OC4B
31
PC6
General purpose IO/OC3A/#OC4A
32
PC7
General purpose IO/ICP3/CLKO/#OC4A
33
HWB/PE2
Hardware Boot Enable
34
VCC
Positive supply voltage
35
GND
Ground
36
PF7
General purpose IO/ADC7
37
PF6
General purpose IO/ADC6
38
PF5
General purpose IO/ADC5
39
PF4
General purpose IO/ADC4
40
PF1
General purpose IO/ADC1
41
PF0
General purpose IO/ADC0
42
AREF
Analog reference pin
43
GND
Ground
44
AVCC
Analog supply voltage
This table provides a concise overview of all the pins available on the ATMEGA32U4-AU microcontroller, highlighting their functions to help with your circuit design needs in Flux.
sebasdv
copilot
Table
HWB/PE2