ATMEGA328-AU Atmel, ATMEGA328-AU Datasheet - Page 559
ATMEGA328-AU
Manufacturer Part Number
ATMEGA328-AU
Description
IC MCU AVR 32K FLASH 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA328-AU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-TQFP, 32-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA328-AU
Manufacturer:
SAMSUNG
Quantity:
15 000
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8271C–AVR–08/10
9
10 System Control and Reset .................................................................... 47
11 Interrupts ................................................................................................ 58
12 External Interrupts ................................................................................. 71
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
Power Management and Sleep Modes ................................................. 39
8.8External Clock .........................................................................................................34
8.9Clock Output Buffer .................................................................................................35
8.10Timer/Counter Oscillator .......................................................................................35
8.11System Clock Prescaler ........................................................................................36
8.12Register Description ..............................................................................................37
9.1Sleep Modes ...........................................................................................................39
9.2BOD Disable
9.3Idle Mode .................................................................................................................40
9.4ADC Noise Reduction Mode ...................................................................................40
9.5Power-down Mode ..................................................................................................41
9.6Power-save Mode ...................................................................................................41
9.7Standby Mode .........................................................................................................41
9.8Extended Standby Mode .........................................................................................42
9.9Power Reduction Register .......................................................................................42
9.10Minimizing Power Consumption ............................................................................42
9.11Register Description ..............................................................................................44
10.1Resetting the AVR .................................................................................................47
10.2Reset Sources .......................................................................................................47
10.3Power-on Reset .....................................................................................................48
10.4External Reset .......................................................................................................49
10.5Brown-out Detection ..............................................................................................49
10.6Watchdog System Reset .......................................................................................50
10.7Internal Voltage Reference ....................................................................................50
10.8Watchdog Timer ....................................................................................................51
10.9Register Description ..............................................................................................55
11.1Interrupt Vectors in ATmega48A and ATmega48PA .............................................58
11.2Interrupt Vectors in ATmega88A and ATmega88PA .............................................60
11.3Interrupt Vectors in ATmega168A and ATmega168PA .........................................63
11.4Interrupt Vectors in ATmega328 and ATmega328P .............................................66
11.5Register Description ..............................................................................................69
12.1Pin Change Interrupt Timing .................................................................................71
(1)
.........................................................................................................40
ii
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