ATMEGA128A-MU Atmel, ATMEGA128A-MU Datasheet - Page 237

• Manufacturer Part Number: ATMEGA128A-MU
• Description: MCU 8BIT 128K ISP FLASH 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128A-MU

• 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: 53
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K 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: 64-MLF®, 64-QFN
• Processor Series: ATMEGA128x
• Core: AVR8
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Controller Family/series: AVR MEGA
• No. Of I/o's: 53
• Eeprom Memory Size: 4KB
• Ram Memory Size: 4KB
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8151H–AVR–02/11
Figure 23-3. ADC Timing Diagram, First Conversion (Single Conversion Mode)
Figure 23-4. ADC Timing Diagram, Single Conversion
Figure 23-5. ADC Timing Diagram, Free Running Conversion
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
Cycle Number
ADC Clock
ADEN
ADSC
ADIF
ADCH
ADCL
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
1
1
2
MUX and REFS
Update
2
MUX and REFS
Update
Conversion
Complete
12
3
One Conversion
13
Sample & Hold
11
4
14
5
12
15
6
Sample &Hold
16
13
First Conversion
7
17
One Conversion
Next Conversion
1
18
8
MSB of Result
LSB of Result
19
9
2
MUX and REFS
Update
20
Conversion
10
Complete
21
3
11
Conversion
22
Complete
Sample & Hold
4
12
23
ATmega128A
24
13
25
MSB of Result
MSB of Result
LSB of Result
Next Conversion
1
MUX and REFS
Update
Next
Conversion
MUX and REFS
Update
1
LSB of Result
2
2
3
3
237