ATmega325P Atmel Corporation, ATmega325P Datasheet - Page 358

• Manufacturer Part Number: ATmega325P
• Manufacturer: Atmel Corporation

Specifications of ATmega325P

• Flash (kbytes): 32 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 20 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: Yes
• 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

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ATmega325P/3250P
9
10 System Control and Reset .................................................................... 45
11 Interrupts ................................................................................................ 53
12 External Interrupts ................................................................................. 58
13 I/O-Ports .................................................................................................. 63
Power Management and Sleep Modes ................................................. 38
8.6Calibrated Internal RC Oscillator .............................................................................33
8.7External Clock .........................................................................................................34
8.8Clock Output Buffer .................................................................................................35
8.9Timer/Counter Oscillator .........................................................................................35
8.10System Clock Prescaler ........................................................................................35
8.11Register Description ..............................................................................................36
9.1Overview .................................................................................................................38
9.2Sleep Modes ...........................................................................................................38
9.3BOD Disable ............................................................................................................39
9.4Idle Mode .................................................................................................................39
9.5ADC Noise Reduction Mode ...................................................................................39
9.6Power-down Mode ..................................................................................................40
9.7Power-save Mode ...................................................................................................40
9.8Standby Mode .........................................................................................................40
9.9Power Reduction Register .......................................................................................40
9.10Minimizing Power Consumption ............................................................................41
9.11Register Description ..............................................................................................43
10.1Resetting the AVR .................................................................................................45
10.2Reset Sources .......................................................................................................45
10.3Internal Voltage Reference ....................................................................................48
10.4Watchdog Timer ....................................................................................................49
10.5Register Description ..............................................................................................50
11.1Overview ...............................................................................................................53
11.2Interrupt Vectors ....................................................................................................53
11.3Register Description ..............................................................................................56
12.1Overview ...............................................................................................................58
12.2Pin Change Interrupt Timing .................................................................................59
12.3Register Description ..............................................................................................59
13.1Overview ...............................................................................................................63
8023F–AVR–07/09