ATmega32U2 Atmel Corporation, ATmega32U2 Datasheet - Page 304

• 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
15 8-bit Timer/Counter0 with PWM ............................................................ 91
16 16-bit Timer/Counter 1 with PWM ....................................................... 108
17 SPI – Serial Peripheral Interface ......................................................... 138
18 USART ................................................................................................... 148
14.1Overview ...............................................................................................................88
14.2Internal Clock Source ............................................................................................88
14.3Prescaler Reset .....................................................................................................88
14.4External Clock Source ...........................................................................................88
14.5Register Description ..............................................................................................89
15.1Features ................................................................................................................91
15.2Overview ...............................................................................................................91
15.3Timer/Counter Clock Sources ...............................................................................92
15.4Counter Unit ..........................................................................................................92
15.5Output Compare Unit ............................................................................................93
15.6Compare Match Output Unit ..................................................................................95
15.7Modes of Operation ...............................................................................................96
15.8Timer/Counter Timing Diagrams .........................................................................100
15.9Register Description ............................................................................................102
16.1Features ..............................................................................................................108
16.2Overview .............................................................................................................108
16.3Accessing 16-bit Registers ..................................................................................110
16.4Timer/Counter Clock Sources .............................................................................113
16.5Counter Unit ........................................................................................................114
16.6Input Capture Unit ...............................................................................................115
16.7Output Compare Units .........................................................................................117
16.8Compare Match Output Unit ................................................................................119
16.9Modes of Operation .............................................................................................120
16.10Timer/Counter Timing Diagrams .......................................................................127
16.11Register Description ..........................................................................................129
17.1Features ..............................................................................................................138
17.2Overview .............................................................................................................138
17.3SS Pin Functionality ............................................................................................142
17.4Data Modes .........................................................................................................143
17.5Register Description ............................................................................................145
18.1Features ..............................................................................................................148
ATmega8U2/16U2/32U2
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