ATMEGA649V-8AI Atmel, ATMEGA649V-8AI Datasheet - Page 386
ATMEGA649V-8AI
Manufacturer Part Number
ATMEGA649V-8AI
Description
IC AVR MCU FLASH 64K 1.8V 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA329-16AU.pdf
(392 pages)
Specifications of ATMEGA649V-8AI
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K 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
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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ii
ATmega329/3290/649/6490
9
10 System Control and Reset .................................................................... 41
11 Interrupts ................................................................................................ 49
12 External Interrupts ................................................................................. 54
13 I/O-Ports .................................................................................................. 59
Power Management and Sleep Modes ................................................. 35
8.7
8.8
8.9
8.10
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.10
11.1
11.2
12.1
12.2
13.1
13.2
13.3
Clock Output Buffer .........................................................................................31
Timer/Counter Oscillator ..................................................................................32
System Clock Prescaler ..................................................................................32
Register Description ........................................................................................32
Idle Mode .........................................................................................................36
ADC Noise Reduction Mode ............................................................................36
Power-down Mode ...........................................................................................36
Power-save Mode ............................................................................................36
Standby Mode .................................................................................................37
Power Reduction Register ...............................................................................37
Minimizing Power Consumption ......................................................................37
Register Description ........................................................................................39
Resetting the AVR ...........................................................................................41
Reset Sources .................................................................................................41
Power-on Reset ...............................................................................................42
External Reset .................................................................................................43
Brown-out Detection ........................................................................................43
Watchdog Reset ..............................................................................................44
Internal Voltage Reference ..............................................................................44
Watchdog Timer ..............................................................................................45
Timed Sequences for Changing the Configuration of the Watchdog Timer ....47
Register Description ........................................................................................47
Interrupt Vectors in ATmega329/3290/649/6490 .............................................49
Register Description ........................................................................................52
Pin Change Interrupt Timing ............................................................................54
Register Description ........................................................................................55
Introduction ......................................................................................................59
Ports as General Digital I/O .............................................................................60
Alternate Port Functions ..................................................................................65
2552K–AVR–04/11
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