ATMEGA32U4-AUR Atmel, ATMEGA32U4-AUR Datasheet - Page 423
![MCU AVR 16K FLASH 16MHZ 44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA32U4-AUR
Manufacturer Part Number
ATMEGA32U4-AUR
Description
MCU AVR 16K FLASH 16MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16U4-MU.pdf
(433 pages)
Specifications of ATMEGA32U4-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
26
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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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.
1.
2.
3.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
1.
2.
3.
4.
1.
Replaced the
Updated
ADCSRB register as in
Updated the last page according to Atmel new Brand Style Guide.
Updated
Updated
Updated
Updated
Updated
Updated
Updated
Updated
Updated
Updated
Added
Updated
Updated
Updated Memory section in
Added section
Added section
Updated
Updated Memory section in
“Typical Characteristics” on page
“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
419.
“Features” on page
“Features” on page
1.
253.
292.
348.
258.
381.
260.
by an updated drawing.
8.
415.
415.
386.
8.
378.
1.
1.
346.
ATmega16/32U4
289. Defined the
327.
312.
423
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