AT90PWM81-16SF Atmel, AT90PWM81-16SF Datasheet - Page 101

• Manufacturer Part Number: AT90PWM81-16SF
• Description: IC MCU AVR 8K FLASH ISP 20SOIC
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM81-16SF

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, PWM, WDT
• Number Of I /o: 16
• 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 8x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 20-SOIC (7.5mm Width)
• For Use With: ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12.3.1
12.3.2
7734P–AVR–08/10
PSC2 Distinctive Feature
Output Polarity
Figure 12-2.
Note:
PSC2 has two supplementary outputs PSCOUT22 and PSCOUT23. Thanks to a first selector PSCOUT22
can duplicate PSCOUT20 or PSCOUT21. Thanks to a second selector PSCOUT23 can duplicate
PSCOUT20 or PSCOUT21.
The Output Matrix is a kind of 2*2 look up table which gives the possibility to program the output values
according to a PSC sequence
The polarity “active high” or “active low” of the PSC outputs is programmable. All the timing diagrams in
the following examples are given in the “active high” polarity.
n = 2
PCTLn
OCRnSB
OCRnRA
OCRnRB
PICRn
PSC Counter
OCRnSA
PCNFn
PCNFEn
PSC2 versus PSC1&PSC0 Block Diagram
=
=
=
=
(See “Output Matrix” on page
PFRCnA
PFRCnB
Generator B
Waveform
PSC Input
Module B
PSC Input
Module A
Generator A
Waveform
Part A
Part B
Output
Matrix
PSOCn
POM2(PSC2 only)
PASDLYn
129.)
POS23
POS22
PSCOUTn3
PSCOUTn1
PSCn Input B
PSCn Input A
PSCOUTn2
PSCOUTn0
AT90PWM81
101