AT90PWM3B-16SUR Atmel, AT90PWM3B-16SUR Datasheet - Page 131

• Manufacturer Part Number: AT90PWM3B-16SUR
• Description: MCU AVR 8K FLASH 16MHA 32SOIC
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM3B-16SUR

• 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: 27
• 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 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

16.3.1
16.3.2
4317J–AVR–08/10
PSC2 Distinctive Feature
Output Polarity
Figure 16-2. PSC2 versus PSC1&PSC0 Block Diagram
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 dia-
grams in the following examples are given in the “active high” polarity.
n = 2
PCTLn
OCRnRB
OCRnSB
OCRnRA
PICRn
PSC Counter
OCRnSA
PCNFn
=
=
=
=
PFRCnA
PFRCnB
(See “Output Matrix” on page
Generator B
PSC Input
Module B
PSC Input
Module A
Generator A
Waveform
Waveform
Part A
Part B
Output
Matrix
PSOCn
POM2(PSC2 only)
AT90PWM2/3/2B/3B
PSCn Input A
PSCn Input B
POS23
POS22
PISELnA
PISELnB
157.)
Comparator n Ouput )
( From Analog
PSCOUTn3
PSCOUTn1
PSCINn
PSCOUTn2
PSCOUTn0
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