ATMEGA324PA-AUR Atmel, ATMEGA324PA-AUR Datasheet - Page 156
ATMEGA324PA-AUR
Manufacturer Part Number
ATMEGA324PA-AUR
Description
MCU AVR 32KB FLASH 20 MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA324PA-AUR.pdf
(468 pages)
Specifications of ATMEGA324PA-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Manufacturer
Quantity
Price
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8152G–AVR–11/09
When OC2B is connected to the pin, the function of the COM2B1:0 bits depends on the
WGM22:0 bit setting.
are set to a normal or CTC mode (non-PWM).
Table 16-5.
Table 16-6
mode.
Table 16-6.
Note:
Table 16-7
rect PWM mode.
Table 16-7.
Note:
• Bits 3:2 – Res: Reserved Bits
These bits are reserved bits in the ATmega164PA/324PA/644PA/1284P and will always read as
zero.
COM2B1
COM2B1
COM2B1
0
0
1
1
0
0
1
1
0
0
1
1
1. A special case occurs when OCR2B equals TOP and COM2B1 is set. In this case, the Com-
1. A special case occurs when OCR2B equals TOP and COM2B1 is set. In this case, the Com-
pare Match is ignored, but the set or clear is done at BOTTOM. See
page 147
pare Match is ignored, but the set or clear is done at TOP. See
page 149
shows the COM2B1:0 bit functionality when the WGM22:0 bits are set to fast PWM
shows the COM2B1:0 bit functionality when the WGM22:0 bits are set to phase cor-
Compare Output Mode, non-PWM Mode
Compare Output Mode, Fast PWM Mode
Compare Output Mode, Phase Correct PWM Mode
COM2B0
COM2B0
COM2B0
for more details.
for more details.
0
1
0
1
0
1
0
1
0
1
0
1
Table 16-5
ATmega164PA/324PA/644PA/1284P
Normal port operation, OC2B disconnected.
Toggle OC2B on Compare Match
Clear OC2B on Compare Match
Set OC2B on Compare Match
Description
Description
Normal port operation, OC2B disconnected.
Reserved
Clear OC2B on Compare Match, set OC2B at BOTTOM,
(non-inverting mode).
Set OC2B on Compare Match, clear OC2B at BOTTOM,
(inverting mode).
Description
Normal port operation, OC2B disconnected.
Reserved
Clear OC2B on Compare Match when up-counting. Set OC2B on
Compare Match when down-counting.
Set OC2B on Compare Match when up-counting. Clear OC2B on
Compare Match when down-counting.
shows the COM2B1:0 bit functionality when the WGM22:0 bits
(1)
(1)
”Phase Correct PWM Mode” on
”Fast PWM Mode” on
156
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