ATmega1280 pinout
Every pin of the ATmega1280 in its 2 packages, with all its functions. Select a pin to see what it does.
ATMEGA1280TQFPTOP VIEW
TQFP pin table
| Pin | Pad | Functions |
|---|---|---|
| 1 | PG5 | PG5OC0B |
| 2 | PE0 | PE0PCINT8RXD0 |
| 3 | PE1 | PE1TXD0 |
| 4 | PE2 | PE2AIN0XCK0 |
| 5 | PE3 | PE3AIN1OC3A |
| 6 | PE4 | PE4INT4OC3B |
| 7 | PE5 | PE5INT5OC3C |
| 8 | PE6 | PE6INT6T3 |
| 9 | PE7 | PE7CLKO0ICP3INT7 |
| 10 | VCC | Supply or reference |
| 11 | GND | Ground |
| 12 | PH0 | PH0RXD2 |
| 13 | PH1 | PH1TXD2 |
| 14 | PH2 | PH2XCK2 |
| 15 | PH3 | PH3OC4A |
| 16 | PH4 | PH4OC4B |
| 17 | PH5 | PH5OC4C |
| 18 | PH6 | PH6OC2B |
| 19 | PB0 | PB0PCINT0SS |
| 20 | PB1 | PB1PCINT1SCK |
| 21 | PB2 | PB2MOSIPCINT2 |
| 22 | PB3 | PB3MISOPCINT3 |
| 23 | PB4 | PB4OC2APCINT4 |
| 24 | PB5 | PB5OC1APCINT5 |
| 25 | PB6 | PB6OC1BPCINT6 |
| 26 | PB7 | PB7OC0AOC1CPCINT7 |
| 27 | PH7 | PH7T4 |
| 28 | PG3 | PG3TOSC2 |
| 29 | PG4 | PG4TOSC1 |
| 30 | RESET | Reset |
| 31 | VCC | Supply or reference |
| 32 | GND | Ground |
| 33 | XTAL2 | Crystal or clock |
| 34 | XTAL1 | Crystal or clock |
| 35 | PL0 | PL0ICP4 |
| 36 | PL1 | PL1ICP5 |
| 37 | PL2 | PL2T5 |
| 38 | PL3 | PL3OC5A |
| 39 | PL4 | PL4OC5B |
| 40 | PL5 | PL5OC5C |
| 41 | PL6 | PL6 |
| 42 | PL7 | PL7 |
| 43 | PD0 | PD0INT0SCL |
| 44 | PD1 | PD1INT1SDA |
| 45 | PD2 | PD2INT2RXD1 |
| 46 | PD3 | PD3INT3TXD1 |
| 47 | PD4 | PD4ICP1 |
| 48 | PD5 | PD5XCK1 |
| 49 | PD6 | PD6T1 |
| 50 | PD7 | PD7T0 |
| 51 | PG0 | PG0 |
| 52 | PG1 | PG1 |
| 53 | PC0 | PC0 |
| 54 | PC1 | PC1 |
| 55 | PC2 | PC2 |
| 56 | PC3 | PC3 |
| 57 | PC4 | PC4 |
| 58 | PC5 | PC5 |
| 59 | PC6 | PC6 |
| 60 | PC7 | PC7 |
| 61 | VCC | Supply or reference |
| 62 | GND | Ground |
| 63 | PJ0 | PJ0PCINT9RXD3 |
| 64 | PJ1 | PJ1PCINT10TXD3 |
| 65 | PJ2 | PJ2PCINT11XCK3 |
| 66 | PJ3 | PJ3PCINT12 |
| 67 | PJ4 | PJ4PCINT13 |
| 68 | PJ5 | PJ5PCINT14 |
| 69 | PJ6 | PJ6PCINT15 |
| 70 | PG2 | PG2 |
| 71 | PA7 | PA7 |
| 72 | PA6 | PA6 |
| 73 | PA5 | PA5 |
| 74 | PA4 | PA4 |
| 75 | PA3 | PA3 |
| 76 | PA2 | PA2 |
| 77 | PA1 | PA1 |
| 78 | PA0 | PA0 |
| 79 | PJ7 | PJ7 |
| 80 | VCC | Supply or reference |
| 81 | GND | Ground |
| 82 | PK7 | PK7ADC15PCINT23 |
| 83 | PK6 | PK6ADC14PCINT22 |
| 84 | PK5 | PK5ADC13PCINT21 |
| 85 | PK4 | PK4ADC12PCINT20 |
| 86 | PK3 | PK3ADC11PCINT19 |
| 87 | PK2 | PK2ADC10PCINT18 |
| 88 | PK1 | PK1ADC9PCINT17 |
| 89 | PK0 | PK0ADC8PCINT16 |
| 90 | PF7 | PF7ADC7TDI |
| 91 | PF6 | PF6ADC6TDO |
| 92 | PF5 | PF5ADC5TMS |
| 93 | PF4 | PF4ADC4TCK |
| 94 | PF3 | PF3ADC3 |
| 95 | PF2 | PF2ADC2 |
| 96 | PF1 | PF1ADC1 |
| 97 | PF0 | PF0ADC0 |
| 98 | AREF | Supply or reference |
| 99 | GND | Ground |
| 100 | AVCC | Supply or reference |