AT90PWM81 Atmel Corporation, AT90PWM81 Datasheet - Page 219
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
AT90PWM81
Manufacturer Part Number
AT90PWM81
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT90PWM161.pdf
(325 pages)
Specifications of AT90PWM81
Flash (kbytes)
8 Kbytes
Pin Count
20
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
20
Ext Interrupts
3
Usb Speed
No
Usb Interface
No
Spi
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
125
Analog Comparators
3
Resistive Touch Screen
No
Dac Channels
1
Dac Resolution (bits)
10
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.25
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 125
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
1
Output Compare Channels
8
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
No
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90PWM81-16MF
Manufacturer:
Atmel
Quantity:
3 118
Company:
Part Number:
AT90PWM81-16MN
Manufacturer:
Atmel
Quantity:
2 446
Company:
Part Number:
AT90PWM81-16SF
Manufacturer:
Atmel
Quantity:
2 428
Company:
Part Number:
AT90PWM81-16SN
Manufacturer:
Atmel
Quantity:
1 500
- Current page: 219 of 325
- Download datasheet (6Mb)
17.8.3
7734P–AVR–08/10
ADC Control and Status Register B– ADCSRB
Table 17-5.
Bit
Read/Write
Initial Value
• Bit 7 – ADHSM: ADC High Speed Mode
Writing this bit to one enables the ADC High Speed mode. Set this bit if you wish to convert with an ADC
clock frequency higher than 200KHz.
• Bit 6 – ADNCDIS: ADC Noise Canceller Disable
Set this bit to disable automatic ADC start when entering Idle or ADC Noise reduction Modes.
Clear it to enable automatic ADC start when entering Idle or ADC reduction Modes..
The ADNCDIS must be set before entering Idle or ADC Noise reduction Modes if the ADC is running or
Auto triggered to prevent false ADC restart.
• Bit 5 – Reserved
• Bit 4 – ADSSEN: ADC Single Shot Enable on PSC’s synchronization signals
Set this bit to enable single shot mode when auto trigger on PSCRASY & PSC2ASY. In this case a single
conversion will be performed and PSCRASY & PSC2ASY will be blocked until ADCH reading.
Clear it to enable continuous conversion on PSCRASY & PSC2ASY auto triggering.
• Bit 3, 2, 1, 0– ADTS3:ADTS0: ADC Auto Trigger Source Selection Bits
These bits are only necessary in case the ADC works in auto trigger mode. It means if ADATE bit in
ADCSRA register is set.
In accordance with the Table 17-6, these 3 bits select the interrupt event which will generate the trigger of
the start of conversion. The start of conversion will be generated by the rising edge of the selected inter-
rupt flag whether the interrupt is enabled or not.
ADPS2
0
0
0
0
1
1
1
1
R/W
7
ADHSM
0
ADC Prescaler Selection
ADPS1
0
0
1
1
0
0
1
1
6
ADNCDIS
R/W
0
ADPS0
0
1
0
1
0
1
0
1
5
-
-
0
4
ADSSEN
R/W
0
Division Factor
2
2
4
8
16
32
64
128
3
ADTS3
R/W
0
2
ADTS2
R/W
0
1
R/W
0
ADTS1
AT90PWM81
0
ADTS0
R/W
0
ADCSRB
219
Related parts for AT90PWM81
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B-P](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
![TDA4470](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
![ATF22V10B-25PC](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
![AT89C51ED2-IM](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
![AT24C01](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet:
![U6046B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
U6046BREAR WINDOW HEATING TIMER / LONG-TERM TIMER
Manufacturer:
ATMEL Corporation
Datasheet: