ATMEGA32U4-AU Atmel, ATMEGA32U4-AU Datasheet - Page 155

• 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

7766F–AVR–11/10
counter value matches the TOP value. The counter is then cleared at the following timer clock
cycle. The TCNT4 value is in the timing diagram shown as a histogram for illustrating the single-
slope operation. The timing diagram includes Output Compare pins OC4A and OC4A, and the
corresponding Output Compare Override Enable bits (OC4OE1..OC4OE0).
Figure 15-15. PWM6 Mode, Single-slope Operation, Timing Diagram
The general I/O port function is overridden by the Output Compare value (OC4x / OC4x) from
the Dead Time Generator if either of the COM4x1:0 bits are set. The Output Compare pins can
also be overridden by the Output Compare Override Enable bits OC4OE5..OC4OE0. If an Over-
ride Enable bit is cleared, the actual value from the port register will be visible on the port pin
and, if the Override Enable bit is set, the Output Compare pin is allowed to be connected on the
port pin. The Output Compare Pin configurations are described in
Table 15-5.
TCNT4
OCW4A
OC4A Pin
OC4OE1
OC4A Pin
OC4B Pin
OC4B Pin
OC4D Pin
OC4OE0
OC4OE2
OC4OE3
OC4OE4
OC4D Pin
OC4OE5
COM4A1
0
0
1
1
COM4B1
0
0
Output Compare Pin configurations in PWM6 Mode
COM4A0
0
1
0
1
COM4B0
0
1
OC4A Pin (PC6)
Disconnected
OC4A •
OC4A •
OC4A •
OC4B Pin (PB5)
Disconnected
OC4A •
OC4OE0
OC4OE0
OC4OE0
OC4OE2
ATmega16/32U4
Table
OC4A Pin (PC7)
Disconnected
OC4A •
OC4A •
OC4A •
OC4B Pin (PB6)
Disconnected
OC4A •
15-5.
OC4OE1
OC4OE1
OC4OE1
OC4OE3
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