AT90PWM1-16MU Atmel, AT90PWM1-16MU Datasheet - Page 124

• Manufacturer Part Number: AT90PWM1-16MU
• Description: IC AVR PWM 8KB FLASH 16MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM1-16MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 19
• 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

16.3
124
PSC Description
AT90PWM1
Figure 16-1. Power Stage Controller 0
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 run-
ning mode.
The PSC is seen as two symetrical 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
PICRn
PSC Counter
PCNFn
OCRnSA
=
=
=
=
PFRCnA
PFRCnB
Part B
Part A
Generator B
PSC Input
Module B
PSC Input
Module A
Generator A
Waveform
Waveform
PSCn Input B
PSCn Input A
PSOCn
POM2(PSC2 only)
PISELnB
PISELnA
Comparator n Ouput )
( From Analog
PSCOUTn1
PSCINn
PSCOUTn0
4378C–AVR–09/08