ATmega32U4 Atmel Corporation, ATmega32U4 Datasheet - Page 409

• 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

7766F–AVR–11/10
Address
(0xBE)
(0xBD)
(0xBC)
(0xBB)
(0xBA)
(0xAE)
(0xAD)
(0xAC)
(0xAB)
(0xAA)
(0xB9)
(0xB8)
(0xB7)
(0xB6)
(0xB5)
(0xB4)
(0xB3)
(0xB2)
(0xB1)
(0xB0)
(0xAF)
(0xA9)
(0xA8)
(0xA7)
(0xA6)
(0xA5)
(0xA4)
(0xA3)
(0xA2)
(0xA1)
(0xA0)
(0x9F)
(0x9E)
(0x9D)
(0x9C)
(0x9B)
(0x9A)
(0x99)
(0x98)
(0x97)
(0x96)
(0x95)
(0x94)
(0x93)
(0x92)
(0x91)
(0x90)
(0x8F)
(0x8E)
(0x8D)
(0x8C)
(0x8B)
(0x89)
(0x88)
(0x87)
(0x86)
(0x85)
(0x84)
(0x83)
(0x82)
(0x81)
(0x80)
(0x7F)
(0x7E)
(0x7D)
(0x8A)
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
OCR3CH
Reserved
Reserved
Reserved
OCR1CH
Reserved
OCR3CL
OCR3BH
OCR3AH
OCR3AL
TCCR3C
TCCR3A
OCR1CL
OCR1BH
OCR1AH
OCR1AL
TCCR1C
TCCR1B
TCCR1A
OCR3BL
TCNT3H
TCCR3B
OCR1BL
TCNT1H
Name
TWAMR
TCNT3L
TCNT1L
TCNT4
TWCR
TWDR
TWAR
TWSR
TWBR
ICR3H
ICR3L
ICR1H
ICR1L
DIDR1
DIDR0
DIDR2
COM3A1
COM1A1
TWAM6
ADC7D
TWINT
FOC3A
FOC1A
ICNC3
ICNC1
Bit 7
TWA6
TWS7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
COM3A0
COM1A0
TWAM5
ADC6D
FOC1B
Bit 6
TWEA
TWA5
TWS6
ICES3
ICES1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
COM3B1
COM1B1
ADC13D
TWAM4
TWSTA
FOC1C
ADC5D
Bit 5
TWA4
TWS5
Timer/Counter3 - Output Compare Register C High Byte
Timer/Counter1 - Output Compare Register C High Byte
Timer/Counter3 - Output Compare Register C Low Byte
Timer/Counter3 - Output Compare Register B High Byte
Timer/Counter3 - Output Compare Register A High Byte
Timer/Counter1 - Output Compare Register C Low Byte
Timer/Counter1 - Output Compare Register B High Byte
Timer/Counter1 - Output Compare Register A High Byte
Timer/Counter3 - Output Compare Register B Low Byte
Timer/Counter3 - Output Compare Register A Low Byte
Timer/Counter1 - Output Compare Register B Low Byte
Timer/Counter1 - Output Compare Register A Low Byte
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Timer/Counter3 - Input Capture Register High Byte
Timer/Counter1 - Input Capture Register High Byte
Timer/Counter3 - Input Capture Register Low Byte
Timer/Counter1 - Input Capture Register Low Byte
Timer/Counter3 - Counter Register High Byte
Timer/Counter1 - Counter Register High Byte
Timer/Counter4 - Counter Register Low Byte
Timer/Counter3 - Counter Register Low Byte
Timer/Counter1 - Counter Register Low Byte
2-wire Serial Interface Bit Rate Register
2-wire Serial Interface Data Register
COM3B0
COM1B0
ADC12D
TWAM3
TWSTO
WGM33
WGM13
ADC4D
Bit 4
TWA3
TWS4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
COM3C1
COM1C1
ADC11D
WGM32
WGM12
TWAM2
TWWC
Bit 3
TWA2
TWS3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
COM3C0
COM1C0
ADC10D
TWAM1
Bit 2
TWEN
TWA1
CS32
CS12
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TWAM0
WGM31
WGM11
TWPS1
ADC1D
ADC9D
Bit 1
TWA0
CS31
CS11
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
ATmega16/32U4
TWGCE
WGM30
WGM10
TWPS0
ADC0D
ADC8D
Bit 0
AIN0D
TWIE
CS30
CS10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
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Page
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