ATmega32U2 Atmel Corporation, ATmega32U2 Datasheet - Page 306
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ATmega32U2
Manufacturer Part Number
ATmega32U2
Description
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
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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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