AT90PWM81-16MF Atmel, AT90PWM81-16MF Datasheet - Page 170
AT90PWM81-16MF
Manufacturer Part Number
AT90PWM81-16MF
Description
IC MCU AVR 8K FLASH ISP 32QFN
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM81-16MN.pdf
(325 pages)
Specifications of AT90PWM81-16MF
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, PWM, WDT
Number Of I /o
20
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 11x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
32-MLF®, QFN
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Manufacturer
Quantity
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Part Number:
AT90PWM81-16MF
Manufacturer:
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Quantity:
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13.20 Interrupt Handling
13.21 PSC Clock Sources
170
AT90PWM81
This signal can be selected between all falling or rising edge of PSCr0 or PSCr1 outputs.
List of interrupt sources:
PSCR must be able to generate high frequency with enhanced resolution.
The PSCR has two clock inputs:
Figure 13-31. Clock selection
PCLKSELr bit in PSCR Configuration register (PCNFr) is used to select the clock source.
PPREr1/0 bits in PSCR Control Register (PCTLr) are used to select the divide factor of the clock.
Table 13-7.
PCLKSELr
0
0
0
0
1
1
1
1
• Counter reload (end of On Time 1)
• PSCR Input event (active edge or at the beginning of level configured event)
• CLK PLL from the PLL
• CLK I/O
CLK
CLK
PLL
I/O
Output Clock versus Selection and Prescaler
PPREr1
0
0
1
1
0
0
1
1
PCLKSELr
1
0
CK
PPREr0
0
1
0
1
0
1
0
1
PRESCALER
CLK
CLKPSCr output
CLK I/O
CLK I/O / 4
CLK I/O / 32
CLK I/O / 256
CLK PLL
CLK PLL / 4
CLK PLL / 32
CLK PLL / 256
PSCr
PPREr1/0
7734P–AVR–08/10
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