AT90PWM1-16MU Atmel, AT90PWM1-16MU Datasheet - Page 129
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AT90PWM1-16MU
Manufacturer Part Number
AT90PWM1-16MU
Description
IC AVR PWM 8KB FLASH 16MHZ 32QFN
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM1-16SU.pdf
(297 pages)
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
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16.5.2
16.5.2.1
4378C–AVR–09/08
Running Mode Description
Four Ramp Mode
Figure 16-5. Cycle Presentation in Centered Mode
Ramps illustrate the output of the PSC counter included in the waveform generators. Centered
Mode is like a one ramp mode which count down up and down.
Notice that the update of a new set of values is done regardless of ramp Mode at the top of the
last ramp.
Waveforms and length of output signals are determined by Time Parameters (DT0, OT0, DT1,
OT1) and by the running mode. Four modes are possible :
In Four Ramp mode, each time in a cycle has its own definition
Figure 16-6. PSCn0 & PSCn1 Basic Waveforms in Four Ramp mode
The input clock of PSC is given by CLKPSC.
Centered Mode
PSC Counter
PSCOUTn0
PSCOUTn1
–
–
–
–
Four Ramp mode
Two Ramp mode
One Ramp mode
Center Aligned mode
OCRnSA
0
Dead-Time 0
On-Time 0
PSC Cycle
OCRnRA
PSC Cycle
0
OCRnSB
Dead-Time 1
On-Time 1
OCRnRB
AT90PWM1
UPDATE
129
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