ATMEGA649-16MUR Atmel, ATMEGA649-16MUR Datasheet - Page 358

• Manufacturer Part Number: ATMEGA649-16MUR
• Description: MCU AVR 64KB FLASH 16MHZ 64QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA649-16MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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