ATmega32U2 Atmel Corporation, ATmega32U2 Datasheet - Page 306

• Manufacturer Part Number: ATmega32U2
• Manufacturer: Atmel Corporation

Specifications of ATmega32U2

• Flash (kbytes): 32 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 22
• Ext Interrupts: 20
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 5
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

7799D–AVR–11/10
22 Analog Comparator ............................................................................. 223
23 Boot Loader Support – Read-While-Write Self-Programming ......... 226
24 debugWIRE On-chip Debug System .................................................. 244
21.4USB reset ............................................................................................................198
21.5Endpoint selection ...............................................................................................198
21.6Endpoint activation ..............................................................................................198
21.7Address Setup .....................................................................................................199
21.8Suspend, Wake-up and Resume ........................................................................200
21.9Detach .................................................................................................................200
21.10Remote Wake-up ..............................................................................................201
21.11STALL request ..................................................................................................201
21.12CONTROL endpoint management ....................................................................202
21.13OUT endpoint management ..............................................................................203
21.14IN endpoint management ..................................................................................205
21.15Isochronous mode .............................................................................................207
21.16Overflow ............................................................................................................207
21.17Interrupts ...........................................................................................................208
21.18Register Description ..........................................................................................209
22.1Overview .............................................................................................................223
22.2Register Description ............................................................................................224
23.1Features ..............................................................................................................226
23.2Overivew .............................................................................................................226
23.3Application and Boot Loader Flash Sections .......................................................226
23.4Read-While-Write and No Read-While-Write Flash Sections ..............................227
23.5Boot Loader Lock Bits .........................................................................................229
23.6Entering the Boot Loader Program ......................................................................230
23.7Addressing the Flash During Self-Programming .................................................232
23.8Self-Programming the Flash ................................................................................233
23.9Register Description ............................................................................................242
24.1Features ..............................................................................................................244
24.2Overview .............................................................................................................244
24.3Physical Interface ................................................................................................244
24.4Software Break Points .........................................................................................245
24.5Limitations of debugWIRE ...................................................................................245
24.6Register Description ............................................................................................245
ATmega8U2/16U2/32U2
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