ATMEGA168P-20MQ Atmel, ATMEGA168P-20MQ Datasheet - Page 252
ATMEGA168P-20MQ
Manufacturer Part Number
ATMEGA168P-20MQ
Description
MCU AVR 16K FLASH 20MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA168P-20MQ
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K 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
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8025L–AVR–7/10
In Free Running mode, a new conversion will be started immediately after the conversion com-
pletes, while ADSC remains high. For a summary of conversion times, see
253.
Figure 23-4. ADC Timing Diagram, First Conversion (Single Conversion Mode)
Figure 23-5. ADC Timing Diagram, Single Conversion
Figure 23-6. ADC Timing Diagram, Auto Triggered Conversion
Cycle Number
ADC Clock
Trigger
Source
ADATE
ADIF
ADCH
ADCL
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
Cycle Number
ADC Clock
ADEN
ADSC
ADIF
ADCH
ADCL
Prescaler
Reset
1
1
2
MUX and REFS
Update
MUX and REFS
Update
1
2
MUX and REFS
Update
12
2
3
13
Sample & Hold
3
4
Sample &
Hold
14
4
5
15
5
6
Sample & Hold
16
6
First Conversion
17
7
One Conversion
18
7
8
One Conversion
19
8
9
ATmega48P/88P/168P
20
9
10
Conversion
Complete
21
10
Conversion
11
Complete
22
Conversion
Complete
11
23
12
24
12
13
25
13
Sign and MSB of Result
Sign and MSB of Result
LSB of Result
Table 23-1 on page
Next Conversion
Sign and MSB of Result
1
Next
Conversion
1
LSB of Result
LSB of Result
2
2
MUX and REFS
Update
Next Conversion
MUX and REFS
Update
1
Prescaler
Reset
3
3
2
252
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