ATmega325 Atmel Corporation, ATmega325 Datasheet - Page 2

• Manufacturer Part Number: ATmega325
• Manufacturer: Atmel Corporation

Specifications of ATmega325

• Flash (kbytes): 32 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 17
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

1. Pin Configurations
Figure 1-1.
2570NS–AVR–05/11
(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
(RXD/PCINT0) PE0
(AIN1/PCINT3) PE3
(SCK/PCINT9) PB1
(TXD/PCINT1) PE1
(DO/PCINT6) PE6
(SS/PCINT8) PB0
(PCINT24) PJ0
(PCINT25) PJ1
Pinout ATmega3250/6450
DNC
GND
DNC
DNC
DNC
DNC
DNC
VCC
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
7
8
9
INDEX CORNER
ATmega3250/6450
ATmega325/3250/645/6450
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
PA3
PA4
PA5
PA6
PA7
PG2
PC7
PC6
DNC
PH3 (PCINT19)
PH2 (PCINT18)
PH1 (PCINT17)
PH0 (PCINT16)
DNC
DNC
DNC
DNC
PC5
PC4
PC3
PC2
PC1
PC0
PG1
PG0
2