AT90PWM3B-16SUR Atmel, AT90PWM3B-16SUR Datasheet - Page 123
AT90PWM3B-16SUR
Manufacturer Part Number
AT90PWM3B-16SUR
Description
MCU AVR 8K FLASH 16MHA 32SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM3B-16SU.pdf
(361 pages)
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
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4317J–AVR–08/10
I/O pin it is connected to. However, note that the Data Direction Register (DDR) bit correspond-
ing to the OCnA or OCnB pin must be set in order to enable the output driver.
When the OCnA or OCnB is connected to the pin, the function of the COMnx1:0 bits is depen-
dent of the WGMn3:0 bits setting.
WGMn3:0 bits are set to a Normal or a CTC mode (non-PWM).
Table 15-2.
Table 15-3
PWM mode.
Table 15-3.
Note:
Table 15-4
correct or the phase and frequency correct, PWM mode.
Table 15-4.
COMnA1/COMnB1
COMnA1/COMnB1
COMnA1/COMnB1
1. A special case occurs when OCRnA/OCRnB equals TOP and COMnA1/COMnB1 is set. In
0
0
1
1
0
0
1
1
0
this case the compare match is ignored, but the set or clear is done at TOP.
Mode” on page 115.
shows the COMnx1:0 bit functionality when the WGMn3:0 bits are set to the phase
shows the COMnx1:0 bit functionality when the WGMn3:0 bits are set to the fast
Compare Output Mode, non-PWM
Compare Output Mode, Fast PWM
Compare Output Mode, Phase Correct and Phase and Frequency Correct
PWM
(1)
COMnA0/COMnB0
COMnA0/COMnB0
COMnA0/COMnB0
for more details.
0
1
0
1
0
1
0
1
0
Table 15-2
Description
Normal port operation, OCnA/OCnB disconnected.
Toggle OCnA/OCnB on Compare Match.
Clear OCnA/OCnB on Compare Match (Set output to
low level).
Set OCnA/OCnB on Compare Match (Set output to
high level).
Description
Normal port operation, OCnA/OCnB disconnected.
WGMn3:0 = 14 or 15: Toggle OC1A on Compare
Match, OC1B disconnected (normal port operation).
For all other WGM1 settings, normal port operation,
OC1A/OC1B disconnected.
Clear OCnA/OCnB on Compare Match, set
OCnA/OCnB at TOP
Set OCnA/OCnB on Compare Match, clear
OCnA/OCnB at TOP
Description
Normal port operation, OCnA/OCnB disconnected.
shows the COMnx1:0 bit functionality when the
(1)
AT90PWM2/3/2B/3B
See “Fast PWM
123
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