Table 1-1. Pin Out Description (Continued)
QFN32 Pin
Number
Mnemonic
Type
Name, Function and Alternate Function
ADC1 (Analog Input Channel 1)
RXD (UART Rx data)
RXLIN (LIN Receive Input)
12
PD4
I/O
ICP1A (Timer 1 input capture alternate A input)
SCK_A (Programming and alternate SPI Clock)
PCINT20 (Pin Change Interrupt 20)
ADC2 (Analog Input Channel 2)
ACMP2 (analog comparator 2 Positive Input)
PCINT21 (Pin Change Interrupt 21)
ADC3 (Analog Input Channel 3)
ACMPN2 (analog comparator 2 Negative Input)
INT0 (External Interrupt 0 Input)
PCINT22 (Pin Change Interrupt 22)
ACMP0 (analog comparator 0 Positive Input)
PCINT23 (Pin Change Interrupt 23)
RESET (Reset Input)
13
14
PD5
PD6
I/O
I/O
15
31
PD7
PE0
I/O
I/O or I
OCD (On Chip Debug I/O)
PCINT24 (Pin Change Interrupt 24)
XTAL1 (XTAL Input)
10
11
PE1
PE2
I/O
I/O
OC0B (Timer 0 Output Compare B)
PCINT25 (Pin Change Interrupt 25)
XTAL2 (XTAL Output)
ADC0 (Analog Input Channel 0)
PCINT26 (Pin Change Interrupt 26)
Note:
1. On the first engineering samples (Parts marked AT90PWM324), the ACMPN3 alternate function is not located
on PC4. It is located on PE2.
ATmega16/32/64/M1/C1 [DATASHEET]
7
7647O–AVR–01/15
MICROCHIP [ MICROCHIP ]
