ATMEGA32U4-MU Atmel, ATMEGA32U4-MU Datasheet - Page 429

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

Specifications of ATMEGA32U4-MU

• 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
• Package: 44QFN EP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 26
• Interface Type: EBI/I2S/SPI/TWI/USART/USB
• On-chip Adc: 12-chx10-bit
• Number Of Timers: 5
• 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: ATMEGA32U4-16MU; ATMEGA32U4-16MU

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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