ATmega325 Atmel Corporation, ATmega325 Datasheet - Page 84

• 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

14.4.21
14.4.22
14.4.23
14.4.24
14.4.25
14.4.26
14.4.27
14.4.28
2570N–AVR–05/11
DDRG – Port G Data Direction Register
PING – Port G Input Pins Address
PORTH – Port H Data Register
DDRH – Port H Data Direction Register
PINH – Port H Input Pins Address
PORTJ – Port J Data Register
DDRJ – Port J Data Direction Register
PINJ – Port J Input Pins Address
Note:
Bit
0x13 (0x33)
Read/Write
Initial Value
Bit
0x12 (0x32)
Read/Write
Initial Value
Bit
(0xDA)
Read/Write
Initial Value
Bit
(0xD9)
Read/Write
Initial Value
Bit
(0xD8)
Read/Write
Initial Value
Bit
(0xDD)
Read/Write
Initial Value
Bit
(0xDC)
Read/Write
Initial Value
Bit
(0xDB)
Read/Write
Initial Value
1. Register only available in ATmega3250/6450.
PORTH7
PINH7
DDH7
R/W
R/W
R/W
N/A
7
–
R
0
7
–
R
0
7
0
7
7
–
R
0
7
–
R
0
7
–
R
0
7
0
(1)
(1)
(1)
(1)
PORTJ6
PORTH6
PINH6
PINJ6
DDH6
DDJ6
R/W
R/W
R/W
R/W
R/W
N/A
N/A
R/W
6
–
R
0
6
–
R
0
6
0
6
6
0
6
0
6
6
0
(1)
(1)
PORTJ5
PING5
PORTH5
PINH5
PINJ5
DDH5
DDJ5
R/W
R/W
R/W
R/W
R/W
N/A
N/A
R/W
R
R
0
5
–
0
5
5
0
5
5
0
5
0
5
5
0
PORTJ4
PING4
PORTH4
PINH4
DDG4
DDH4
PINJ4
DDJ4
R/W
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R/W
4
0
4
4
0
4
4
0
4
0
4
4
0
ATmega325/3250/645/6450
PORTJ3
PING3
PORTH3
PINH3
DDG3
DDH3
PINJ3
DDJ3
R/W
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R/W
3
0
3
3
0
3
3
0
3
3
0
3
0
PORTJ2
PING2
PINH2
DDG2
PORTH2
DDH2
PINJ2
DDJ2
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
R/W
N/A
R/W
2
0
2
2
0
2
2
0
2
2
0
2
0
PORTJ1
PING1
PINH1
DDG1
PORTH1
DDH1
PINJ1
DDJ1
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R/W
R/W
1
0
1
1
0
1
1
0
1
1
0
1
0
PORTJ0
PING0
PINH0
DDG0
DDH0
PINJ0
PORTH0
DDJ0
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R/W
R/W
0
0
0
0
0
0
0
0
0
0
0
0
0
DDRG
DDRH
PORTH
DDRJ
PORTJ
PING
PINH
PINJ
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