Datasheet

(32-pin
32UFBGA)
Pin#
(32-pin
MLF/
TQFP)
Pin#
(28-pin
MLF)
Pin#
(28-pin
PIPD)
Pin#
PAD EXTINT PCINT ADC/A
C
OSC T/C #0 T/C
#1
USART
0
I2C 0 SPI 0
A3 29 25 1 PC[6]/
RESET
PCINT14
B3 30 26 2 PD[0] PCINT16 RXD0
A2 31 27 3 PD[1] PCINT17 TXD0
A1 32 28 4 PD[2] INT0 PCINT18
Atmel ATmega48A/88A/168A [DATASHEET]
Atmel-42733B-ATmega48A/88A/168A_Datasheet_Summary-11/2016
17