6
3: PB2 AIN0 INT2 PCINT10
7
4: PB3 AIN1 OC0A PCINT11
8
5: PB4 /SS OC0B PCINT12
19
16: PD2 INT0 RXD1 PCINT26
20
17: PD3 INT1 TXD1 PCINT27
21
18: PD4 OC1B XCK1 PCINT28
23
20: PD6 ICP1 OC2B PCINT30
46
The high-performance, low-power Microchip 8-bit AVR RISC-based microcontroller
47
32 KB ISP flash memory with read-while-write capabilities,
50
32 general purpose I/O lines,
51
32 general purpose working registers,
52
a JTAG interface for boundary-scan and on-chip debugging/programming,
53
2 x 8-bit, 1 x 16-bit timer/counters with compare modes,
55
internal and external interrupts,
56
serial programmable USART,
57
a universal serial interface (USI) with start condition detector,
58
an 8-channel 10-bit A/D converter,
59
programmable watchdog timer with internal oscillator,
61
five software selectable power saving modes.