2 ATmega 64 670 700 150 140 550 540 64 PEN RXD0/(PDI) PE0 (TXD0/PDO) PE1 (XCK0/AIN0) PE2 (OC3A/AIN1) PE3 (OC3B/INT4) PE4 (OC3C/INT5) PE5 (T3/INT6) PE6 (IC3/INT7) PE7 (SS) PB0 (SCK) PB1 (MOSI) PB2 (MISO) PB3 (OC0) PB4 (OC1A) PB5 (OC1B) PB6 (OC2/OC1C) PB7 TOSC2/PG3 TOSC1/PG4 RESET VCC GND XTAL2 XTAL1 (SCL/INT0) PD0 (SDA/INT1) PD1 (RXD1/INT2) PD2 (TXD1/INT3) PD3 (IC1) PD4 (XCK1) PD5 (T1) PD6 (T2) PD7 PG0(WR) PG1(RD) PC0 (A8) PC1 (A9) PC2 (A10) PC3 (A11) PC4 (A12) PC5 (A13) PC6 (A14) PC7 (A15) PG2(ALE) PA7 (AD7) PA6 (AD6) PA5 (AD5) PA4 (AD4) PA3 (AD3) PA2 (AD2) PA1 (AD1) PA0 (AD0) VCC GND PF7 (ADC7/TDI) PF6 (ADC6/TDO) PF5 (ADC5/TMS) PF4 (ADC4/TCK) PF3 (ADC3) PF2 (ADC2) PF1 (ADC1) PF0 (ADC0) AREF GND AVCC
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