AT90PWM81 Atmel Corporation, AT90PWM81 Datasheet - Page 100
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
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Manufacturer
Quantity
Price
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Part Number:
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Manufacturer:
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3 118
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Part Number:
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Manufacturer:
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Quantity:
1 500
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12.3
100
PSC Description
AT90PWM81
Figure 12-1.
Note:
The principle of the PSC is based on the use of a counter (PSC counter). This counter is able to count up
and count down from and to values stored in registers according to the selected running mode.
The PSC is seen as two symmetrical entities. One part named part A which generates the output
PSCOUTn0 and the second one named part B which generates the PSCOUTn1 output.
Each part A or B has its own PSC Input Module to manage selected input.
n = 0, 1
PCTLn
OCRnRB
OCRnSB
OCRnRA
PSC Counter
PICRn
PCNFn
OCRnSA
PCNFEn
=
=
=
=
Power Stage Controller 0 or 1 Block Diagram
PFRCnA
PFRCnB
Part B
Part A
Generator B
Generator A
Waveform
PSC Input
Module B
PSC Input
Module A
Waveform
PSOCn
PASDLYn
PSCOUTn1
PSCn Input B
PSCn Input A
PSCOUTn0
7734P–AVR–08/10
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