ATMEGA32U4-AU Atmel, ATMEGA32U4-AU Datasheet - Page 166

• Manufacturer Part Number: ATMEGA32U4-AU
• Description: MCU AVR 32K FLASH 16MHZ 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA32U4-AU

• 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-TQFP, 44-VQFP
• Processor Series: ATMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2.5 KB
• Interface Type: SPI/TWI/USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 26
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12-ch x 10-bit
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 16MHz
• Total Internal Ram Size: 2.5KB
• # I/os (max): 26
• Number Of Timers - General Purpose: 5
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: TQFP
• Controller Family/series: AVR MEGA
• No. Of I/o's: 26
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2.5KB
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• For Use With: ATSTK524 - KIT STARTER ATMEGA32M1/MEGA32C1ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATMEGA32U4-16AU; ATMEGA32U4-16AU

15.12.3
7766F–AVR–11/10
TCCR4C – Timer/Counter4 Control Register C
Table 15-14. Division factors of the Dead Time prescaler
• Bits 3 .. 0 - CS43, CS42, CS41, CS40: Clock Select Bits 3, 2, 1, and 0
The Clock Select bits 3, 2, 1, and 0 define the prescaling source of Timer/Counter4.
Table 15-15. Timer/Counter4 Prescaler Select
The Stop condition provides a Timer Enable/Disable function.
• Bits 7,6 - COM4A1S, COM4A0S: Comparator A 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
Bit
Read/Write
Initial value
DTPS41
0
0
1
1
CS43
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
“TCCR4A – Timer/Counter4 Control Register A” on page
CS42
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
COM4A1S COM4A0S COM4B1S COMAB0S
R/W
7
0
CS41
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
DTPS40
0
1
0
1
R/W
CS40
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
6
0
Asynchronous Clocking Mode
T/C4 stopped
PCK
PCK/2
PCK/4
PCK/8
PCK/16
PCK/32
PCK/64
PCK/128
PCK/256
PCK/512
PCK/1024
PCK/2048
PCK/4096
PCK/8192
PCK/16384
Prescaler divides the T/C4 clock by
1x (no division)
2x
4x
8x
R/W
5
0
R/W
4
0
COM4D1
R/W
3
0
COM4D0
162.
R/W
2
0
ATmega16/32U4
Synchronous Clocking Mode
T/C4 stopped
CK
CK/2
CK/4
CK/8
CK/16
CK/32
CK/64
CK/128
CK/256
CK/512
CK/1024
CK/2048
CK/4096
CK/8192
CK/16384
FOC4D
R/W
1
0
PWM4D
R/W
0
0
TCCR4C
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