ATMEGA164A-MCHR Atmel, ATMEGA164A-MCHR Datasheet - Page 246

• Manufacturer Part Number: ATMEGA164A-MCHR
• Description: IC MCU AVR 16K 20MHZ 44QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA164A-MCHR

• Package / Case: 44-VQFN Exposed Pad
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 20MHz
• Number Of I /o: 32
• Eeprom Size: 512 x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Program Memory Size: 16KB (16K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: I²C, SPI, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8272A–AVR–01/10
Figure 22-5. ADC Timing Diagram, Single Conversion
Figure 22-6. ADC Timing Diagram, Auto Triggered Conversion
Figure 22-7. ADC Timing Diagram, Free Running Conversion
164A/164PA/324A/324PA/644A/644PA/1284/1284P
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
Cycle Number
ADC Clock
Trigger
Source
ADATE
ADIF
ADCH
ADCL
Prescaler
Reset
1
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
MUX and REFS
Update
1
2
MUX and REFS
Update
2
3
Conversion
Complete
3
Sample & Hold
One Conversion
4
Sample & Hold
11
4
5
12
5
6
6
13
7
One Conversion
7
One Conversion
Next Conversion
1
8
MSB of Result
LSB of Result
8
9
2
MUX and REFS
Update
9
Conversion
10
Conversion
Complete
10
Complete
3
11
11
Sample & Hold
4
12
12
13
13
MSB of Result
LSB of Result
MSB of Result
LSB of Result
Next Conversion
1
MUX and REFS
Update
Next Conversion
1
Prescaler
Reset
2
2
3
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