ATmega649 Atmel Corporation, ATmega649 Datasheet - Page 385
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ATmega649
Manufacturer Part Number
ATmega649
Description
Manufacturer
Atmel Corporation
Specifications of ATmega649
Flash (kbytes)
64 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
Segment Lcd
100
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)
4
Eeprom (bytes)
2048
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATmega649-16AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATmega649-16MU
Manufacturer:
Atmel
Quantity:
135
Part Number:
ATmega6490-16AI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATmega6490-16AU
Manufacturer:
Atmel
Quantity:
135
Company:
Part Number:
ATmega6490-16AUR
Manufacturer:
Atmel
Quantity:
1 500
Company:
Part Number:
ATmega6490A-AU
Manufacturer:
Atmel
Quantity:
1 250
Company:
Part Number:
ATmega6490A-AUR
Manufacturer:
Maxim
Quantity:
43
Table of Contents
2552K–AVR–04/11
1
2
3
4
5
6
7
8
Features ..................................................................................................... 1
Pin Configurations ................................................................................... 2
Overview ................................................................................................... 4
Resources ................................................................................................. 9
Data Retention .......................................................................................... 9
About Code Examples ............................................................................. 9
AVR CPU Core ........................................................................................ 10
AVR ATmega329/3290/649/6490 Memories ......................................... 18
System Clock and Clock Options ......................................................... 26
2.1
2.2
2.3
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
7.1
7.2
7.3
7.4
7.5
8.1
8.2
8.3
8.4
8.5
8.6
Block Diagram ...................................................................................................4
Comparison between ATmega329, ATmega3290, ATmega649 and
ATmega6490 6
Pin Descriptions .................................................................................................6
Overview ..........................................................................................................10
Architectural Overview .....................................................................................10
ALU – Arithmetic Logic Unit .............................................................................11
AVR Status Register ........................................................................................12
General Purpose Register File ........................................................................13
Stack Pointer ...................................................................................................14
Instruction Execution Timing ...........................................................................15
Reset and Interrupt Handling ...........................................................................15
In-System Reprogrammable Flash Program Memory .....................................18
SRAM Data Memory ........................................................................................19
EEPROM Data Memory ..................................................................................20
I/O Memory ......................................................................................................21
Register Description ........................................................................................22
Clock Systems and their Distribution ...............................................................26
Clock Sources .................................................................................................27
Crystal Oscillator .............................................................................................28
Low-frequency Crystal Oscillator .....................................................................29
Calibrated Internal RC Oscillator .....................................................................29
External Clock .................................................................................................31
ATmega329/3290/649/6490
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