ATmega328P datasheet(339/345 Pages) ATMEL

339 / 345 page

339

7810A–AVR–11/09

ATmega328P [Preliminary]

8.7

128 kHz Internal Oscillator ..............................................................................32

8.8

External Clock .................................................................................................33

8.9

Clock Output Buffer .........................................................................................34

8.10

Timer/Counter Oscillator ..................................................................................34

8.11

System Clock Prescaler ..................................................................................34

8.12

Power Management and Sleep Modes ................................................. 37

9.1

Sleep Modes ....................................................................................................37

9.2

BOD Disable ....................................................................................................38

9.3

Idle Mode .........................................................................................................38

9.4

ADC Noise Reduction Mode ............................................................................38

9.5

Power-down Mode ...........................................................................................39

9.6

Power-save Mode ............................................................................................39

9.7

Standby Mode .................................................................................................39

9.8

Extended Standby Mode .................................................................................39

9.9

Power Reduction Register ...............................................................................40

9.10

Minimizing Power Consumption ......................................................................40

9.11

System Control and Reset .................................................................... 44

10.1

Resetting the AVR ...........................................................................................44

10.2

Reset Sources .................................................................................................44

10.3

Power-on Reset ...............................................................................................45

10.4

External Reset .................................................................................................47

10.5

Brown-out Detection ........................................................................................47

10.6

Watchdog System Reset .................................................................................48

10.7

Internal Voltage Reference ..............................................................................48

10.8

Watchdog Timer ..............................................................................................49

10.9

Interrupts ................................................................................................ 56

11.1

Interrupt Vectors in ATmega328P ...................................................................56

11.2

External Interrupts ................................................................................. 61

12.1

Pin Change Interrupt Timing ............................................................................61

12.2

ATmega328P Datasheet(PDF) 339 Page - ATMEL Corporation

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