ATmega32U4 Atmel Corporation, ATmega32U4 Datasheet - Page 423

• Manufacturer Part Number: ATmega32U4
• Manufacturer: Atmel Corporation

Specifications of ATmega32U4

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 14
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 26
• Ext Interrupts: 13
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 3.3
• 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: 4
• Output Compare Channels: 12
• Input Capture Channels: 2
• Pwm Channels: 8
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

36. Datasheet Revision History for ATmega16U4/ATmega32U4
36.1
36.2
36.3
36.4
7766F–AVR–11/10
Rev. 7766F – 11/10
Rev. 7766E – 04/10
Rev. 7766D – 01/09
Rev. 7766C – 11/08
Please note that the referring page numbers in this section are referred to this document. The
referring revision in this section are referring to the document revision.
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Updated the last page according to Atmel new Brand Style Guide.
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“ADC Control and Status Register B – ADCSRB” on page
“Features” on page
“Features” on page
Figure 21-9 on page
Section 21.8 on page
“Features” on page
“ATmega16U4/ATmega32U4 Boundary-scan Order” on page
“Program And Data Memory Lock Bits” on page
Table 28-5 on page
“Electrical Characteristics” on page
Figure 29-2 on page
“Ordering Information” on page
“Errata” on page
“Ordering Information” on page
“QFN44” on page 418
“Resources” on page
“Data Retention” on page
“ADC Control and Status Register B – ADCSRB” on page
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“Features” on page
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