ATMEGA649A-AU Atmel, ATMEGA649A-AU Datasheet - Page 480

• Manufacturer Part Number: ATMEGA649A-AU
• Description: IC MCU AVR 64K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA649A-AU

• 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: 54
• 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
• Processor Series: ATmega
• Core: AVR
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 3
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8284A–AVR–10/10
Figure 29-230.ATmega329PA: Watchdog Oscillator Frequency vs. Temperature
Figure 29-231.ATmega329PA: Calibrated 8 MHz RC Oscillator Frequency vs. Temperature
ATmega169A/169PA/329A/329PA/649A/649P/3290A/3290PA/6490A/6490P
1250
1200
1150
1100
1050
1000
8.3
8.2
8.1
7.9
7.8
7.7
7.6
7.5
7.4
8
-40
-40
-30
-20
-20
-10
0
0
10
Temperature [°C]
Temperature [°C]
20
20
30
40
40
50
60
60
70
80
80
5.5 V
4.5 V
3.3 V
2.7 V
1.8 V
5.5 V
5.0 V
4.5 V
4.0 V
3.0 V
2.7 V
1.8 V
480