ATMEGA32U4-AU Atmel, ATMEGA32U4-AU Datasheet - Page 429

• 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
22 USB Device Operating modes ............................................................ 266
23 Analog Comparator ............................................................................. 289
24 Analog to Digital Converter - ADC ..................................................... 292
21.8Speed Control .....................................................................................................260
21.9Memory management .........................................................................................260
21.10PAD suspend ....................................................................................................261
21.11Plug-in detection ................................................................................................262
21.12Registers description .........................................................................................263
21.13USB Software Operating modes .......................................................................265
22.1Introduction ..........................................................................................................266
22.2Power-on and reset .............................................................................................266
22.3Endpoint reset .....................................................................................................266
22.4USB reset ............................................................................................................267
22.5Endpoint selection ...............................................................................................267
22.6Endpoint activation ..............................................................................................267
22.7Address Setup .....................................................................................................268
22.8Suspend, Wake-up and Resume ........................................................................269
22.9Detach .................................................................................................................269
22.10Remote Wake-up ..............................................................................................270
22.11STALL request ..................................................................................................270
22.12CONTROL endpoint management ....................................................................271
22.13OUT endpoint management ..............................................................................272
22.14IN endpoint management ..................................................................................274
22.15Isochronous mode .............................................................................................275
22.16Overflow ............................................................................................................276
22.17Interrupts ...........................................................................................................276
22.18Registers ...........................................................................................................277
23.1Analog Comparator Multiplexed Input .................................................................291
24.1Features ..............................................................................................................292
24.2Operation .............................................................................................................294
24.3Starting a Conversion ..........................................................................................294
24.4Prescaling and Conversion Timing ......................................................................295
24.5Changing Channel or Reference Selection .........................................................298
24.6Temperature Sensor ...........................................................................................299
24.7ADC Noise Canceler ...........................................................................................301
ATmega16/32U4
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