AT90PWM2B-16SU Atmel, AT90PWM2B-16SU Datasheet - Page 261
![IC MCU AVR RISC 8K FLASH 24-SOIC](/photos/6/70/67046/453-24-soic_sml.jpg)
AT90PWM2B-16SU
Manufacturer Part Number
AT90PWM2B-16SU
Description
IC MCU AVR RISC 8K FLASH 24-SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM3B-16SU.pdf
(361 pages)
Specifications of AT90PWM2B-16SU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART
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; D/A 1x10b
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, USART
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, 8 Channel
On-chip Dac
10 bit, 1 Channel
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRFBKIT - KIT DEMO BALLAST FOR AT90PWM2ATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK520 - ADAPTER KIT FOR 90PWM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT90PWM2B-16SU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 261 of 361
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22.4.2
22.4.2.1
22.4.2.2
4317J–AVR–08/10
Digital to Analog Converter input Register – DACH and DACL
DALA = 0
DALA = 1
Table 22-1.
• Bit 2 – DALA: Digital to Analog Left Adjust
Set this bit to left adjust the DAC input data.
Clear it to right adjust the DAC input data.
The DALA bit affects the configuration of the DAC data registers. Changing this bit affects the
DAC output on the next DACH writing.
• Bit 1 – DAOE: Digital to Analog Output Enable bit
Set this bit to output the conversion result on D2A,
Clear it to use the DAC internally.
• Bit 0 – DAEN: Digital to Analog Enable bit
Set this bit to enable the DAC,
Clear it to disable the DAC.
DACH and DACL registers contain the value to be converted into analog voltage.
Writing the DACL register forbid the update of the input value until DACH has not been written
too. So the normal way to write a 10-bit value in the DAC register is firstly to write DACL the
DACH.
In order to work easily with only 8 bits, there is the possibility to left adjust the input value. Like
this it is sufficient to write DACH to update the DAC value.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
DATS2
1
1
1
1
DATS1
0
0
1
1
DAC Auto Trigger source selection (Continued)
DAC7
DAC9
DAC1
R/W
R/W
R/W
R/W
7
0
0
7
0
0
-
DAC6
DAC8
DAC0
R/W
R/W
R/W
R/W
DATS0
0
1
0
1
6
0
0
6
0
0
-
DAC5
DAC7
R/W
R/W
R/W
R/W
5
0
0
5
0
0
-
-
Description
Timer/Counter0 Overflow
Timer/Counter1 Compare Match B
Timer/Counter1 Overflow
Timer/Counter1 Capture Event
DAC4
DAC6
R/W
R/W
R/W
R/W
4
0
0
4
0
0
-
-
DAC3
DAC5
R/W
R/W
R/W
R/W
3
0
0
3
0
0
-
-
AT90PWM2/3/2B/3B
DAC2
DAC4
R/W
R/W
R/W
R/W
2
0
0
2
0
0
-
-
DAC9
DAC1
DAC3
R/W
R/W
R/W
R/W
1
0
0
1
0
0
-
DAC8
DAC0
DAC2
R/W
R/W
R/W
R/W
0
0
0
0
0
0
-
DACH
DACL
DACH
DACL
261
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