ATMEGA325-16AJ ATMEL [ATMEL Corporation], ATMEGA325-16AJ Datasheet - Page 3

• Manufacturer Part Number: ATMEGA325-16AJ
• Description: 8-bit Microcontroller with In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Disclaimer
2570A–AVR–09/04
Figure 2. Pinout ATmega325/645
Note:
Typical values contained in this datasheet are based on simulations and characteriza-
tion of other AVR microcontrollers manufactured on the same process technology. Min
and Max values will be available after the device is characterized.
(USCK/SCL/PCINT4) PE4
(XCK/AIN0/PCINT2) PE2
(DI/SDA/PCINT5) PE5
(OC0A/PCINT12) PB4
(OC1A/PCINT13) PB5
(OC1B/PCINT14) PB6
(MOSI/PCINT10) PB2
(MISO/PCINT11) PB3
(CLKO/PCINT7) PE7
(AIN1/PCINT3) PE3
(RXD/PCINT0) PE0
(SCK/PCINT9) PB1
The large center pad underneath the MLF packages is made of metal and internally con-
nected 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.
(TXD/PCINT1) PE1
(DO/PCINT6) PE6
(SS/PCINT8) PB0
DNC
10
11
14
15
16
12
13
1
2
3
4
5
6
7
8
9
INDEX CORNER
ATmega325/3250/645/6450
ATmega325/645
48
47
46
45
44
43
42
41
40
39
38
37
35
34
33
36
PA3
PA4
PA5
PA6
PA7
PG2
PC7
PC5
PC4
PC3
PC2
PC1
PC0
PC6
PG1
PG0
3