Datasheet

32-pin
TQFP/ QFN/
MLF Pin #
40-pin
PDIP Pin
#
DRQFN Pin# VFBGA Pin# PAD EXTINT PCINT ADC/AC OSC T/C # 0 T/C # 1 USART I2C SPI JTAG
34 37 A19 B6 PA[3] PCINT3 ADC3
35 38 B16 A6 PA[2] PCINT2 ADC2
36 39 A20 C5 PA[1] PCINT1 ADC1
37 40 B17 B5 PA[0] PCINT0 ADC0
38 - A21 G3 VCC SDA1
39 - B18 A7 GND SCL1
40 1 A22 B4 PB[0] PCINT8 T0 XCK0
41 2 B19 C4 PB[1] PCINT9 CLKO T1
42 3 A23 A3 PB[2] INT2 PCINT10 AIN0
43 4 B20 B3 PB[3] PCINT11 AIN1 OC0A
44 5 A24 A2 PB[4] PCINT12 OC0B SS
- - - D4 GND
- - - D7 GND
- - - G1 GND
- - - G4 GND
- - - G7 GND
Atmel ATmega164A [DATASHEET]
Atmel-42712C-ATmega164A_Datasheet_Summary-10/2016
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