ATMEGA32U4-MUR Atmel, ATMEGA32U4-MUR Datasheet - Page 141
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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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15.2.5
7766F–AVR–11/10
Definitions
Figure 15-2. Timer/Counter4 Synchronization Register Block Diagram.
Many register and bit references in this section are written in general form. A lower case “n”
replaces the Timer/Counter number, in this case 0. A lower case “x” replaces the Output Com-
pare Unit, in this case Compare Unit A, B, C or D. However, when using the register or bit
defines in a program, the precise form must be used, i.e., TCNT4 for accessing Timer/Counter4
counter value and so on. The definitions in
document.
Table 15-1.
BOTTOM
MAX
TOP
PLLTM1:0
CK
PCK
(clk
SYNC
MODE
ASYNC
MODE
!= '00'
TMR
IO-registers
)
The counter reaches the BOTTOM when it becomes 0.
The counter reaches its MAXimum value when it becomes 0x3FF (decimal 1023).
The counter reaches the TOP value (stored in the OCR1C) when it becomes equal to the
highest value in the count sequence. The TOP has a value 0x0FF as default after reset.
OCR4B
OCF4A
OCR4A
OCR4C
OCR4D
TCCR4A
TCCR4B
TCCR4C
TCCR4D
TCNT4
TC4H
OCF4B
OCF4D
TOV4
Definitions
~1/2 CK Delay
1/2 CK Delay
S
A
Input synchronization
registers
OCR4A_SI
OCR4B_SI
OCR4C_SI
OCR4D_SI
TCCR4A_SI
TCCR4B_SI
TCCR4C_SI
TCCR4D_SI
TCNT4_SI
TC4H_SI
OCF4A_SI
OCF4B_SI
OCF4D_SI
TOV4_SI
1 PCK Delay
1 CK Delay
Table 15-1
S
A
8-BIT DATABUS
Timer/Counter4
TCNT4
are used extensively throughout the
1 CK Delay
1 PCK Delay
ATmega16/32U4
Output synchronization
registers
TCNT4_SO
TC4H_SO
OCF4A_SO
OCF4B_SO
OCF4D_SO
TOV4_SO
1/2 CK Delay
~1 CK Delay
TCNT4
TC4H
OCF4
OCF4B
OCF4D
TOV4
141
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