ATMEGA32L-8AUR Atmel, ATMEGA32L-8AUR Datasheet - Page 206
ATMEGA32L-8AUR
Manufacturer Part Number
ATMEGA32L-8AUR
Description
MCU AVR 32K FLASH 8MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32L-8AUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K 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
*
Package
44TQFP
Device Core
AVR
Family Name
ATmega
Maximum Speed
8 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
32
Interface Type
TWI/SPI/USART
On-chip Adc
8-chx10-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Differential Gain
Channels
2503Q–AVR–02/11
Figure 103. ADC Timing Diagram, Auto Triggered Conversion
Figure 104. ADC Timing Diagram, Free Running Conversion
Table 81. ADC Conversion Time
When using differential gain channels, certain aspects of the conversion need to be taken into
consideration.
Differential conversions are synchronized to the internal clock CK
clock. This synchronization is done automatically by the ADC interface in such a way that the
sample-and-hold occurs at a specific phase of CK
Condition
First conversion
Normal conversions, single ended
Auto Triggered conversions
Normal conversions, differential
Cycle Number
ADC Clock
Trigger
Source
ADATE
ADIF
ADCH
ADCL
Prescaler
Reset
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
MUX and REFS
Update
1
2
Conversion
Complete
3
One Conversion
Sample & Hold
11
4
Sample & Hold (Cycles
12
5
from Start of
Conversion)
6
1.5/2.5
13
13.5
1.5
2
7
One Conversion
ADC2
Next Conversion
1
MSB of Result
LSB of Result
8
. A conversion initiated by the user (that is,
2
MUX and REFS
Update
9
Conversion
10
3
Complete
Conversion Time (Cycles)
11
Sample & Hold
4
12
ADC2
ATmega32(L)
13/14
13
13.5
25
13
equal to half the ADC
MSB of Result
LSB of Result
Next Conversion
1
Prescaler
Reset
2
206
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