atmega3250v-8auatmega325v-8ai ATMEL Corporation, atmega3250v-8auatmega325v-8ai Datasheet - Page 3

• Manufacturer Part Number: atmega3250v-8auatmega325v-8ai
• Description: Atmega3250 8-bit Microcontroller With In-system Programmable Flash
• Manufacturer: ATMEL Corporation

2. Disclaimer
3. Overview
2570L–AVR–08/07
Figure 1-2.
Note:
Typical values contained in this datasheet are based on simulations and characterization of
other AVR microcontrollers manufactured on the same process technology. Min and Max values
will be available after the device is characterized.
The ATmega325/3250/645/6450 is a low-power CMOS 8-bit microcontroller based on the AVR
enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the
ATmega325/3250/645/6450 achieves throughputs approaching 1 MIPS per MHz allowing the
system designer to optimize power consumption versus processing speed.
(USCK/SCL/PCINT4) PE4
The large center pad underneath the QFN/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.
(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
(TXD/PCINT1) PE1
(DO/PCINT6) PE6
(SS/PCINT8) PB0
Pinout ATmega325/645
DNC
10
11
12
14
15
16
13
1
2
5
6
7
8
9
3
4
INDEX CORNER
ATmega325/3250/645/6450
ATmega325/645
47
40
39
38
37
35
34
33
48
46
45
44
43
42
41
36
PA3
PA4
PA5
PA6
PA7
PG2
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
PG1
PG0
3