ATmega325 Atmel Corporation, ATmega325 Datasheet - Page 357

• 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

2570N–AVR–05/11
15 8-bit Timer/Counter0 with PWM ............................................................ 85
16 Timer/Counter0 and Timer/Counter1 Prescalers ................................ 99
17 16-bit Timer/Counter1 .......................................................................... 102
18 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 130
14.1
14.2
14.3
14.4
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.8
15.9
16.1
17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9
17.10
17.11
18.1
18.2
18.3
18.4
18.5
18.6
Overview ..........................................................................................................60
Ports as General Digital I/O .............................................................................61
Alternate Port Functions ..................................................................................66
Register Description ........................................................................................81
Features ..........................................................................................................85
Overview ..........................................................................................................85
Timer/Counter Clock Sources .........................................................................86
Counter Unit ....................................................................................................87
Output Compare Unit .......................................................................................87
Compare Match Output Unit ............................................................................89
Modes of Operation .........................................................................................90
Timer/Counter Timing Diagrams .....................................................................95
Register Description ........................................................................................96
Register Description ......................................................................................101
Features ........................................................................................................102
Overview ........................................................................................................102
Accessing 16-bit Registers ............................................................................104
Timer/Counter Clock Sources .......................................................................107
Counter Unit ..................................................................................................108
Input Capture Unit .........................................................................................109
Output Compare Units ...................................................................................111
Compare Match Output Unit ..........................................................................112
Modes of Operation .......................................................................................114
Timer/Counter Timing Diagrams ...................................................................121
Register Description ......................................................................................123
Features ........................................................................................................130
Overview ........................................................................................................130
Timer/Counter Clock Sources .......................................................................131
Counter Unit ..................................................................................................131
Output Compare Unit .....................................................................................132
Compare Match Output Unit ..........................................................................134
ATmega325/3250/645/6450
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