Table 1-1. Pin Out Description (Continued)
QFN32 Pin
Number
Mnemonic
Type
Name, Function and Alternate Function
PSCIN1 (PSC Digital Input 1)
OC1B (Timer 1 Output Compare B)
SS_A (Alternate SPI Slave Select)
PCINT9 (Pin Change Interrupt 9)
3
PC1
I/O
T0 (Timer 0 clock input)
6
7
PC2
PC3
I/O
I/O
TXCAN (CAN Transmit Output)
PCINT10 (Pin Change Interrupt 10)
T1 (Timer 1 clock input)
RXCAN (CAN Receive Input)
ICP1B (Timer 1 input capture alternate B input)
PCINT11 (Pin Change Interrupt 11)
ADC8 (Analog Input Channel 8)
AMP1- (Analog Differential Amplifier 1 Negative Input)
ACMPN3 (analog comparator 3 Negative Input)
PCINT12 (Pin Change Interrupt 12)
ADC9 (Analog Input Channel 9)
17
PC4
I/O
AMP1+ (Analog Differential Amplifier 1 Positive Input)
ACMP3 (analog comparator 3 Positive Input)
PCINT13 (Pin Change Interrupt 13)
ADC10 (Analog Input Channel 10)
ACMP1 (analog comparator 1 Positive Input)
PCINT14 (Pin Change Interrupt 14)
D2A (DAC output)
18
22
PC5
PC6
I/O
I/O
25
29
32
PC7
PD0
PD1
I/O
I/O
I/O
AMP2+ (Analog Differential Amplifier 2 Positive Input)
PCINT15 (Pin Change Interrupt 15)
PSCOUT0A (PSC Module 0 Output A)
PCINT16 (Pin Change Interrupt 16)
PSCIN0 (PSC Digital Input 0)
CLKO (System Clock Output)
PCINT17 (Pin Change Interrupt 17)
OC1A (Timer 1 Output Compare A)
PSCIN2 (PSC Digital Input 2)
1
2
PD2
PD3
I/O
I/O
MISO_A (Programming and alternate SPI Master In Slave Out)
PCINT18 (Pin Change Interrupt 18)
TXD (UART Tx data)
TXLIN (LIN Transmit Output)
OC0A (Timer 0 Output Compare A)
SS (SPI Slave Select)
MOSI_A (Programming and alternate Master Out SPI Slave In)
PCINT19 (Pin Change Interrupt 19)
Note:
1. On the first engineering samples (Parts marked AT90PWM324), the ACMPN3 alternate function is not located
on PC4. It is located on PE2.
6
ATmega16/32/64/M1/C1 [DATASHEET]
7647O–AVR–01/15
MICROCHIP [ MICROCHIP ]
