ATmega325 Atmel Corporation, ATmega325 Datasheet - Page 79

• 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

14.3.7
2570N–AVR–05/11
Alternate Functions of Port J
Table 14-18. Overriding Signals for Alternate Functions in PH3:0
Port J is only present in ATmega3250/6450. The alternate pin configuration is as follows:
Table 14-19. Port J Pins Alternate Functions
The alternate pin configuration is as follows:
• PCINT30 – Port J, Bit 6
PCINT30, Pin Change Interrupt Source 30: The PE30 pin can serve as an external interrupt
source.
• PCINT29 – Port J, Bit 5
PCINT29, Pin Change Interrupt Source 29: The PE29 pin can serve as an external interrupt
source.
• PCINT28 – Port J, Bit 4
PCINT28, Pin Change Interrupt Source 28: The PE28 pin can serve as an external interrupt
source.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PJ6
PJ5
PJ4
PJ3
PJ2
PJ1
PJ0
PH3/PCINT19
0
0
0
0
0
0
–
PCINT19 •
PCIE0
0
PCINT19 INPUT
–
Alternate Function
PCINT30 (Pin Change Interrupt30)
PCINT29 (Pin Change Interrupt29)
PCINT28 (Pin Change Interrupt28)
PCINT27 (Pin Change Interrupt27)
PCINT26(Pin Change Interrupt26)
PCINT25(Pin Change Interrupt25)
PCINT24 (Pin Change Interrupt26)
PH2/PCINT18
0
0
0
0
0
0
–
PCINT18 •
PCIE0
0
PCINT18 INPUT
–
ATmega325/3250/645/6450
PH1/PCINT17
0
0
0
0
0
0
–
PCINT17 •
PCIE0
0
PCINT17 INPUT
–
PH0/PCINT16
0
0
0
0
0
0
–
PCINT16 •
PCIE0
0
PCINT16 INPUT
–
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