ATmega649 Atmel Corporation, ATmega649 Datasheet - Page 358

• Manufacturer Part Number: ATmega649
• 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

29.0.11
358
ATmega329/3290/649/6490
Internal Oscillator Speed
Figure 29-45. Watchdog Oscillator Frequency vs. V
Figure 29-46. Calibrated 8MHz RC Oscillator Frequency vs. Temperature
1300
1250
1200
1150
1100
1050
1000
8.6
8.4
8.2
7.8
7.6
7.4
7.2
8
1.5
-60
-40
2
2.5
-20
3
0
Temperature (°C)
V
CC
3.5
20
(V)
40
CC
4
4.5
60
80
5
100
5.5
-40 °C
5.5 V
4.5 V
3.3 V
2.7 V
1.8 V
25 °C
85 °C
2552K–AVR–04/11