ATMEGA1281-16AUR Atmel, ATMEGA1281-16AUR Datasheet - Page 280

• 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

2549M–AVR–09/10
Figure 25-5. ADC Timing Diagram, Single Conversion
Figure 25-6. ADC Timing Diagram, Auto Triggered Conversion
Figure 25-7. ADC Timing Diagram, Free Running Conversion
Cycle Number
ADC Clock
Trigger
Source
ADATE
ADIF
ADCH
ADCL
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
Prescaler
Reset
1
MUX and REFS
Update
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
1
2
MUX and REFS
Update
2
3
Conversion
Complete
Sample & Hold
3
ATmega640/1280/1281/2560/2561
4
One Conversion
Sample &
Hold
11
4
5
12
5
6
6
13
7
One Conversion
7
8
One Conversion
Next Conversion
1
Sign and MSB of Result
LSB of Result
8
9
2
MUX and REFS
Update
9
10
Conversion
Complete
3
10
Conversion
11
Complete
Sample & Hold
11
4
12
12
13
13
Sign and MSB of Result
LSB of Result
Next Conversion
Sign and MSB of Result
1
LSB of Result
2
MUX and REFS
Update
Next Conversion
1
Prescaler
Reset
3
2
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