ATMEGA1281-16AUR Atmel, ATMEGA1281-16AUR Datasheet - Page 403

• Manufacturer Part Number: ATMEGA1281-16AUR
• Description: MCU AVR 128K FLASH 16MHZ 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA1281-16AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 8K 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: 64-TQFP, 64-VQFP
• For Use With: ATAVRDB101 - MODULE DISPLAY LCD/RGB BACKLIGHTATSTK600 - DEV KIT FOR AVR/AVR32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

31.10 Internal Oscillator Speed
2549M–AVR–09/10
Figure 31-35. Watchdog Oscillator Frequency vs. V
Figure 31-36. Watchdog Oscillator Frequency vs. Temperature
128
126
124
122
120
118
116
114
128
126
124
122
120
118
116
114
-60
2
-40
2.5
-20
ATmega640/1280/1281/2560/2561
3
0
3.5
Temperature (°C)
V
CC
20
(V)
CC
4
40
4.5
60
5
80
2.1V
2.7V
3.3V
4.0V
5.5V
100
5.5
-40°C
25°C
85°C
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