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ATMEGA169PA-MCUR

8-bit Microcontroller with 16K Bytes In-System Programmable Flash

Atmel Corporation 

1. Pin Configurations

1.1 Pinout - TQFP and QFN/MLF

Figure 1-1. 64A (TQFP)and 64M1 (QFN/MLF) Pinout ATmega169PA

ATmega169PA

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

(SS/PCINT8) PB0 10

(SCK/PCINT9) PB1 11

(MOSI/PCINT10) PB2 12

(MISO/PCINT11) PB3 13

(OC0A/PCINT12) PB4 14

(OC1A/PCINT13) PB5 15

(OC1B/PCINT14) PB6 16

INDEX CORNER

48 PA3 (COM3)

47 PA4 (SEG0)

46 PA5 (SEG1)

45 PA6 (SEG2)

44 PA7 (SEG3)

43 PG2 (SEG4)

42 PC7 (SEG5)

41 PC6 (SEG6)

40 PC5 (SEG7)

39 PC4 (SEG8)

38 PC3 (SEG9)

37 PC2 (SEG10)

36 PC1 (SEG11)

35 PC0 (SEG12)

34 PG1 (SEG13)

33 PG0 (SEG14)

Note:

The large center pad underneath the QFN/MLF packages is made of metal and internally connected to GND. It should be sol-

dered or glued to the board to ensure good mechanical stability. If the center pad is left unconnected, the package might loosen

from the board.

2

8171B–AVR–03/10

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