ATmega16M1 datasheet(5/365 Pages) ATMEL

5 / 365 page

7647F–AVR–04/09

ATmega16/32/64/M1/C1

1.1

Pin Descriptions

Table 1-1.

Pin out description

QFN32 Pin

Number

Mnemonic

Type

Name, Function & Alternate Function

5GND

Power

Ground: 0V reference

AGND

Power

Analog Ground: 0V reference for analog part

4VCC

Power

Power Supply

AVCC

Power

Analog Power Supply: This is the power supply voltage for analog

part

For a normal use this pin must be connected.

AREF

Power

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)

PB0

I/O

MISO (SPI Master In Slave Out)

PSCOUT2A(1) (PSC Module 2 Output A)

PCINT0 (Pin Change Interrupt 0)

PB1

I/O

MOSI (SPI Master Out Slave In)

PSCOUT2B(1) (PSC Module 2 Output B)

PCINT1 (Pin Change Interrupt 1)

PB2

I/O

ADC5 (Analog Input Channel 5 )

INT1 (External Interrupt 1 Input)

ACMPN0 (Analog Comparator 0 Negative Input)

PCINT2 (Pin Change Interrupt 2)

PB3

I/O

AMP0- (Analog Differential Amplifier 0 Negative Input)

PCINT3 (Pin Change Interrupt 3)

PB4

I/O

AMP0+ (Analog Differential Amplifier 0 Positive Input)

PCINT4 (Pin Change Interrupt 4)

PB5

I/O

ADC6 (Analog Input Channel 6)

INT2 (External Interrupt 2 Input)

ACMPN1 (Analog Comparator 1 Negative Input)

AMP2- (Analog Differential Amplifier 2 Negative Input)

PCINT5 (Pin Change Interrupt 5)

PB6

I/O

ADC7 (Analog Input Channel 7)

PSCOUT1B(1) (PSC Module 1 Output A)

PCINT6 (Pin Change Interrupt 6)

PB7

I/O

ADC4 (Analog Input Channel 4)

PSCOUT0B

(1) (PSC Module 0 Output B)

SCK (SPI Clock)

PCINT7 (Pin Change Interrupt 7)

PC0

I/O

PSCOUT1A

(1) (PSC Module 1 Output A)

INT3 (External Interrupt 3 Input)

PCINT8 (Pin Change Interrupt 8)

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