ATMEGA32U4-MU Atmel, ATMEGA32U4-MU Datasheet - Page 423

• Manufacturer Part Number: ATMEGA32U4-MU
• Description: MCU AVR 32K FLASH 16MHZ 44-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA32U4-MU

• 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-VQFN
• Package: 44QFN EP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 26
• Interface Type: EBI/I2S/SPI/TWI/USART/USB
• On-chip Adc: 12-chx10-bit
• Number Of Timers: 5
• For Use With: ATSTK524 - KIT STARTER ATMEGA32M1/MEGA32C1ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATMEGA32U4-16MU; ATMEGA32U4-16MU

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