Datasheet
5.1.2. TQFN and QFN
Power
Ground
Programming/debug
Digital
Analog
Crystal/Osc
1
2
3
4
43
42
41
40
39
38
37
5
6
7
8
35
3422
21
20
19
18
17
36
9
10
11
12
13
14
15
16
(PCINT13/MOSI) PB5
(PCINT14/OC3A/MISO) PB6
(PCINT15/OC3B/SCK) PB7
RESET
VCC
GND
XTAL2
XTAL1
(PCINT24/RXD0/T3) PD0
(PCINT25/TXD0) PD1
(PCINT26/RXD1/INT0) PD2
44
32
31
30
29
28
27
26
24
23
25
33
PB4 (SS/OC0B/PCINT12)
PB3 (AIN1/OC0A/PCINT11)
PB2 (AIN0/INT2/PCINT10)
PB1 (T1/CLKO/PCINT9)
PB0 (XCK0/T0/PCINT8)
GND
VCC
PA0 (ADC0/PCINT0)
PA1 (ADC1/PCINT1)
PA2 (ADC2/PCINT2)
PA3 (ADC3/PCINT3)
PA4 (ADC4/PCINT4)
PA5 (ADC5/PCINT5)
PA6 (ADC6/PCINT6)
PA7 (ADC7/PCINT7)
AREF
GND
AVCC
PC7 (TOSC2/PCINT23)
PC6 (TOSC1/PCINT22)
PC5 (TDI/PCINT21)
PC4 (TDO/PCINT20)
(PCINT27/TXD1/INT1) PD3
(PCINT28/XCK1/OC1B) PD4
(PCINT29/OC1A) PD5
(PCINT30/OC2B/ICP1) PD6
(PCINT31/OC2A) PD7
VCC
GND
(PCINT16/SCL) PC0
(PCINT17/SDA) PC1
(PCINT18/TCK) PC2
(PCINT19/TMS) PC3
5.2. Pin Descriptions
5.2.1. VCC
Digital supply voltage.
5.2.2. GND
Ground.
5.2.3. Port A (PA[7:0])
This port serves as analog inputs to the Analog-to-digital Converter.
Atmel ATmega1284P [DATASHEET]
Atmel-42719C-ATmega1284P_Datasheet_Summary-10/2016
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