ATMEGA3290PA_14 Datasheet, PDF (4/39 Pages) ATMEL Corporation – 8-bit Atmel Microcontroller with 16/32/64KB In-System Programmable Flash

1.2 Pinout - 100A (TQFP)
Figure 1-2.
Pinout Atmel ATmega3290A/ATmega3290PA/ATmega6490A/ATmega6490P.
TQFP
LCDCAP 1
(RXD/PCINT0) PE0 2
(TXD/PCINT1) PE1 3
(XCK/AIN0/PCINT2) PE2 4
(AIN1/PCINT3) PE3 5
(USCK/SCL/PCINT4) PE4 6
(DI/SDA/PCINT5) PE5 7
(DO/PCINT6) PE6 8
(CLKO/PCINT7) PE7 9
VCC 10
GND 11
DNC 12
(PCINT24/SEG35) PJ0 13
(PCINT25/SEG34) PJ1 14
DNC 15
DNC 16
DNC 17
DNC 18
(SS/PCINT8) PB0 19
(SCK/PCINT9) PB1 20
(MOSI/PCINT10) PB2 21
(MISO/PCINT11) PB3 22
(OC0A/PCINT12) PB4 23
(OC1A/PCINT13) PB5 24
(OC1B/PCINT14) PB6 25
INDEX CORNER
75 PA3 (COM3)
74 PA4 (SEG0)
73 PA5 (SEG1)
72 PA6 (SEG2)
71 PA7 (SEG3)
70 PG2 (SEG4)
69 PC7 (SEG5)
68 PC6 (SEG6)
67 DNC
66 PH3 (PCINT19/SEG7)
65 PH2 (PCINT18/SEG8)
64 PH1 (PCINT17/SEG9)
63 PH0 (PCINT16/SEG10)
62 DNC
61 DNC
60 DNC
59 DNC
58 PC5 (SEG11)
57 PC4 (SEG12)
56 PC3 (SEG13)
55 PC2 (SEG14)
54 PC1 (SEG15)
53 PC0 (SEG16)
52 PG1 (SEG17)
51 PG0 (SEG18)
Note: The large center pad underneath the QFN/MLF packages is made of metal and internally connected to GND. It should be soldered
or glued to the board to ensure good mechanical stability. If the center pad is left unconnected, the package might loosen from the
board.
ATmega169A/PA/329A/PA/649A/P/3290A/PA/6490A/P [DATASHEET SUMMARY]
4
8284FS–AVR–07/2014