ATMEGA32U4-MUR Atmel, ATMEGA32U4-MUR Datasheet - Page 167
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ATMEGA32U4-MUR
Manufacturer Part Number
ATMEGA32U4-MUR
Description
MCU AVR 16K FLASH 16MHZ 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16U4-MU.pdf
(433 pages)
Specifications of ATMEGA32U4-MUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
26
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-VQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA32U4-MUR
Manufacturer:
UCC
Quantity:
1 001
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7766F–AVR–11/10
• Bits 5,4 - COM4B1S, COM4B0S: Comparator B Output Mode, Bits 1 and 0
These bits are the shadow bits of the COM4A1 and COM4A0 bits that are described in the sec-
tion
• Bits 3,2 - COM4D1, COM4D0: Comparator D Output Mode, Bits 1 and 0
These bits control the behavior of the Waveform Output (OCW4D) and the connection of the
Output Compare pin (OC4D). If one or both of the COM4D1:0 bits are set, the OC4D output
overrides the normal port functionality of the I/O pin it is connected to. The complementary
OC4D output is connected only in PWM modes when the COM4D1:0 bits are set to “01”. Note
that the Data Direction Register (DDR) bit corresponding to the OC4D pin must be set in order to
enable the output driver.
The function of the COM4D1:0 bits depends on the PWM4D and WGM40 bit settings.
16
PWM).
Table 15-16. Compare Output Mode, Normal Mode (non-PWM)
Table 15-17
to Fast PWM Mode.
Table 15-17. Compare Output Mode, Fast PWM Mode
Table 15-18 on page 168
bits are set to Phase and Frequency Correct PWM Mode.
COM4D1..0
COM4D1..0
shows the COM4D1:0 bit functionality when the PWM4D bit is set to a Normal Mode (non-
“TCCR4A – Timer/Counter4 Control Register A” on page
00
01
10
11
00
01
10
11
shows the COM4D1:0 bit functionality when the PWM4D and WGM40 bits are set
OCW4D Behavior
Normal port operation.
Toggle on Compare Match.
Clear on Compare Match.
Set on Compare Match.
OCW4D Behavior
Normal port operation.
Cleared on Compare Match.
Set when TCNT4 = 0x000.
Cleared on Compare Match.
Set when TCNT4 = 0x000.
Set on Compare Match.
Clear when TCNT4 = 0x000.
shows the COM4D1:0 bit functionality when the PWM4D and WGM40
162.
ATmega16/32U4
Disconnected
Disconnected
Connected
Connected
Connected
Connected
Connected
Connected
OC4D Pin
OC4D Pin
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
Disconnected
Connected
OC4D Pin
OC4D Pin
Table 15-
167
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