AT90PWM1-16SU Atmel, AT90PWM1-16SU Datasheet - Page 186
AT90PWM1-16SU
Manufacturer Part Number
AT90PWM1-16SU
Description
MCU AVR 8K FLASH 16MHZ 24-SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM1-16SU.pdf
(297 pages)
Specifications of AT90PWM1-16SU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
19
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
24-SOIC (7.5mm Width)
Processor Series
AT90PWMx
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
19
Number Of Timers
2
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRFBKIT, ATAVRISP2
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 11 Channel
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT90PWM1-16SU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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186
Changing Channel or Reference Selection
AT90PWM1
Figure 19-6. ADC Timing Diagram, Auto Triggered Conversion
Figure 19-7. ADC Timing Diagram, Free Running Conversion
Table 60. ADC Conversion Time
The MUXn and REFS1:0 bits in the ADMUX Register are single buffered through a temporary
register to which the CPU has random access. This ensures that the channels and reference
selection only takes place at a safe point during the conversion. The channel and reference
selection is continuously updated until a conversion is started. Once the conversion starts, the
channel and reference selection is locked to ensure a sufficient sampling time for the ADC. Con-
tinuous updating resumes in the last ADC clock cycle before the conversion completes (ADIF in
ADCSRA is set). Note that the conversion starts on the following rising ADC clock edge after
ADSC is written. The user is thus advised not to write new channel or reference selection values
to ADMUX until one ADC clock cycle after ADSC is written.
Condition
Sample & Hold
(Cycles from Start of Conversion)
Conversion Time
(Cycles)
Cycle Number
ADC Clock
Trigger
Source
ADATE
ADIF
ADCH
ADCL
Prescaler
Reset
MUX and REFS
Update
1
2
3
Sample &
Hold
4
First Conversion
5
6
13.5
7
25
One Conversion
8
Cycle Number
ADC Clock
ADSC
ADIF
ADCH
ADCL
Conversion
13
Conversion
Complete
Complete
One Conversion
14
14
Single Ended
Conversion,
15
15
Normal
15.5
16
16
3.5
Next Conversion
1
Sign and MSB of Result
Sign and MSB of Result
LSB of Result
LSB of Result
2
MUX and REFS
Update
Next Conversion
1
Prescaler
Reset
3
Sample & Hold
2
4
Auto Triggered
Conversion
4378C–AVR–09/08
16
2
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