3

ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY]

Atmel-8272FS-AVR--07/2014

1.

Pin configurations

1.1

Pinout - PDIP/TQFP/VQFN/QFN/MLF for

ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P

Figure 1-1.

Pinout.

Note:

The large center pad underneath the VQFN/QFN/MLF package should be soldered to ground on the board to

ensure good mechanical stability.

(PCINT8/XCK0/T0) PB0

(PCINT9/CLKO/T1) PB1

(PCINT10/INT2/AIN0) PB2

(PCINT11/OC0A/AIN1) PB3

(PCINT12/OC0B/SS) PB4

(PCINT13/ICP3/MOSI) PB5

(PCINT14/OC3A/MISO) PB6

(PCINT15/OC3B/SCK) PB7

RESET

VCC

GND

XTAL2

XTAL1

(PCINT24/RXD0/T3*) PD0

(PCINT25/TXD0) PD1

(PCINT26/RXD1/INT0) PD2

(PCINT27/TXD1/INT1) PD3

(PCINT28/XCK1/OC1B) PD4

(PCINT29/OC1A) PD5

(PCINT30/OC2B/ICP) PD6

PA0 (ADC0/PCINT0)

PA1 (ADC1/PCINT1)

PA2 (ADC2/PCINT2)

PA3 (ADC3/PCINT3)

PA4 (ADC4/PCINT4)

PA5 (ADC5/PCINT5)

PA6 (ADC6/PCINT6)

PA7 (ADC7/PCINT7)

AREF

GND

AVCC

PC7 (TOSC2/PCINT23)

PC6 (TOSC1/PCINT22)

PC5 (TDI/PCINT21)

PC4 (TDO/PCINT20)

PC3 (TMS/PCINT19)

PC2 (TCK/PCINT18)

PC1 (SDA/PCINT17)

PC0 (SCL/PCINT16)

PD7 (OC2A/PCINT31)

PA4 (ADC4/PCINT4)

PA5 (ADC5/PCINT5)

PA6 (ADC6/PCINT6)

PA7 (ADC7/PCINT7)

AREF

GND

AVCC

PC7 (TOSC2/PCINT23)

PC6 (TOSC1/PCINT22)

PC5 (TDI/PCINT21)

PC4 (TDO/PCINT20)

(PCINT13/ICP3/MOSI) PB5

(PCINT14/OC3A/MISO) PB6

(PCINT15/OC3B/SCK) PB7

RESET

VCC

GND

XTAL2

XTAL1

(PCINT24/RXD0/T3*) PD0

(PCINT25/TXD0) PD1

(PCINT26/RXD1/INT0) PD2

TQFP/QFN/MLF

*T3 is only available for ATmega1284/1284P