ATMEGA32U4-AU
- Mfr.Part #
- ATMEGA32U4-AU
- Manufacturer
- Atmel (Microchip Technology)
- Package / Case
- 44-TQFP
- Datasheet
- Download
- Description
- IC MCU 8BIT 32KB FLASH 44TQFP
- Stock
- 1,154
- In Stock :
- 1,154
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- Manufacturer :
- Atmel (Microchip Technology)
- Product Category :
- Microcontrollers
- ROM (words) :
- 16384
- Interfaces :
- I2C, SPI, UART, USART
- Data Converters :
- A/D 12x10b
- Qualification Status :
- Not Qualified
- JESD-30 Code :
- S-PQFP-G44
- Frequency :
- 16MHz
- Product :
- MCU
- RAM Size :
- 2.5K x 8
- Number of Terminations :
- 44
- Number of I2C Channels :
- 1
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Number of PWM Channels :
- 8
- Supply Current-Max :
- 15 mA
- Interface Type :
- JTAG, SPI, TWI, USART, USB
- Core Processor :
- AVR
- Number of I/Os :
- 26 I/O
- PWM Channels :
- yes
- Supplier Device Package :
- 44-TQFP (10x10)
- Connectivity :
- I2C, SPI, UART/USART, USB
- EEPROM Size :
- 1K x 8
- Data Converter :
- A/D 12x10b
- Product Category :
- 8-bit Microcontrollers - MCU
- Length :
- 10mm
- Package :
- Tray
- Package Shape :
- Square
- Has ADC :
- yes
- Product Status :
- Active
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, WDT
- Supply Voltage :
- 5V
- Power Supplies :
- 3/5 V
- RoHS :
- Details
- Mounting Type :
- Surface Mount
- Typical Operating Supply Voltage :
- 2.7 → 5.5 V
- Height :
- 1.05mm
- Instruction Set Architecture :
- RISC
- Data Bus Width :
- 8B
- Pin Count :
- 44
- Peak Reflow Temperature (Cel) :
- 260
- Product Type :
- 8-bit Microcontrollers - MCU
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Series :
- AVR® ATmega
- Base Part Number :
- ATmega32U4
- Brand :
- Microchip Technology / Atmel
- Manufacturer Package Identifier :
- ATMEGA32U4-AU
- Maximum Operating Temperature :
- +85 °C
- DAC Channels :
- No
- Dimensions :
- 10.1 x 10.1 x 1.05mm
- Package Type :
- TQFP
- Reach Compliance Code :
- Compliant
- ROM Programmability :
- Flash
- Program Memory Type :
- Flash
- Terminal Form :
- Gull wing
- Device Core :
- AVR
- Factory Lead Time :
- 7 Weeks
- RoHS Status :
- ROHS3 Compliant
- Base Product Number :
- ATMEGA32
- Number of Terminals :
- 44
- Oscillator Type :
- Internal
- REACH SVHC :
- No SVHC
- Temperature Grade :
- Industrial
- JESD-609 Code :
- e3
- Published :
- 2001
- Number of I/O :
- 26
- Radiation Hardening :
- No
- Pbfree Code :
- yes
- Number of Pins :
- 44
- Bit Size :
- 8
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- RAM (bytes) :
- 2560
- Surface Mount :
- yes
- CPU Family :
- AVR RISC
- Speed :
- 16MHz
- Interface :
- I2C, I2S, SPI, UART, USART, USB
- Program Memory Size :
- 32KB 16K x 16
- Voltage - Supply (Vcc/Vdd) :
- 2.7V~5.5V
- Operating Temperature :
- -40°C~85°C TA
- Mount :
- Surface Mount
- Terminal Finish :
- Matte Tin (Sn)
- Lead Free :
- Lead Free
- Packaging :
- Tray
- Memory Size :
- 32kB
- Tradename :
- AVR
- Watchdog Timer :
- yes
- Family Name :
- ATMEGA
- Number of I/O Lines :
- 26
- Package / Case :
- 44-TQFP
- Mounting Style :
- SMD/SMT
- Terminal Position :
- QUAD
- MSL :
- -
- Number of Timers/Counters :
- 5
- Additional Feature :
- ALSO OPERATES AT 8 MHZ WITH A MINIMUM SUPPLY OF 2.7V
- Core Size :
- 8-Bit
- DMA Channels :
- No
- Terminal Pitch :
- 0.8 mm
- Manufacturer :
- Microchip
- Minimum Operating Temperature :
- -40 °C
- Width :
- 10mm
- Seated Height-Max :
- 1.2 mm
- Number of ADC Channels :
- 12
- Qualification :
- -
- Datasheets
- ATMEGA32U4-AU
ATMEGA32U4-AU Documents

Microcontrollers Atmel (Microchip Technology) ATMEGA32U4-AU Overview
The Microcontrollers Atmel (Microchip Technology) ATMEGA32U4-AU is a highly versatile and efficient microcontroller designed for advanced embedded systems. This 8-bit MCU is built around a powerful AVR architecture that supports complex digital processing in a compact form factor. The ATMEGA32U4-AU is tailored for applications requiring a rich set of peripherals, along with substantial program and data memories, making it a robust solution for demanding control environments.
ATMEGA32U4-AU Features
The ATMEGA32U4-AU microcontroller offers an array of features that enhance its functionality and flexibility. It includes 32KB of in-system programmable flash, a full-speed USB 2.0 controller, 1KB of EEPROM, and 2.5KB of SRAM. Additional capabilities such as 12-channel, 10-bit A/D converter, real-time counter with separate oscillator, and PWM channels make it a preferred choice for developers looking to push the boundaries of microcontroller applications.
ATMEGA32U4-AU Applications
- Consumer Electronics: Used in devices like gaming peripherals, where its USB functionality allows for rapid communication and controls.
- Medical Devices: Applies in patient monitoring systems where accuracy and data integrity are critical.
- Automation Systems: Empowers industrial control systems with its robust I/O capabilities and real-time performance.
- Wearable Technology: Ideal for wearables due to its low power consumption and compact size, facilitating advanced features in small form factors.
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