ATmega16/32/64/M1/C1
1.1
Pin Descriptions
:
Table 1-1.
QFN32 Pin
Number
5
20
4
Pin out description
Mnemonic
GND
AGND
VCC
Type
Power
Power
Power
Name, Function & Alternate Function
Ground:
0V reference
Analog Ground:
0V reference for analog part
Power Supply
Analog Power Supply:
This is the power supply voltage for analog
part
For a normal use this pin must be connected.
Analog Reference :
reference for analog converter . This is the
reference voltage of the A/D converter. As output, can be used by
external analog
ISRC (Current Source Output)
MISO (SPI Master In Slave Out)
19
AVCC
Power
21
AREF
Power
8
PB0
I/O
PSCOUT2A
(1)
(PSC Module 2 Output A)
PCINT0 (Pin Change Interrupt 0)
MOSI (SPI Master Out Slave In)
9
PB1
I/O
PSCOUT2B
(1)
(PSC Module 2 Output B)
PCINT1 (Pin Change Interrupt 1)
ADC5 (Analog Input Channel 5 )
16
PB2
I/O
INT1 (External Interrupt 1 Input)
ACMPN0 (Analog Comparator 0 Negative Input)
PCINT2 (Pin Change Interrupt 2)
23
PB3
I/O
AMP0- (Analog Differential Amplifier 0 Negative Input)
PCINT3 (Pin Change Interrupt 3)
AMP0+ (Analog Differential Amplifier 0 Positive Input)
PCINT4 (Pin Change Interrupt 4)
ADC6 (Analog Input Channel 6)
INT2 (External Interrupt 2 Input)
24
PB4
I/O
26
PB5
I/O
ACMPN1 (Analog Comparator 1 Negative Input)
AMP2- (Analog Differential Amplifier 2 Negative Input)
PCINT5 (Pin Change Interrupt 5)
ADC7 (Analog Input Channel 7)
27
PB6
I/O
PSCOUT1B
(1)
(PSC Module 1 Output A)
PCINT6 (Pin Change Interrupt 6)
ADC4 (Analog Input Channel 4)
28
PB7
I/O
PSCOUT0B
(1)
(PSC Module 0 Output B)
SCK (SPI Clock)
PCINT7 (Pin Change Interrupt 7)
PSCOUT1A
(1)
(PSC Module 1 Output A)
30
PC0
I/O
INT3 (External Interrupt 3 Input)
PCINT8 (Pin Change Interrupt 8)
5
7647F–AVR–04/09
ATMEL [ ATMEL CORPORATION ]
