ATMEGA32U2-AU
- Mfr.Part #
- ATMEGA32U2-AU
- Manufacturer
- Microchip Technology
- Package / Case
- 32-TQFP
- Datasheet
- Download
- Description
- IC MCU 8BIT 32KB FLASH 32TQFP
- Stock
- 17,681
- In Stock :
- 17,681
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Oscillator Type :
- Internal
- Supply Voltage :
- 5V
- Program Memory Size :
- 32KB 16K x 16
- Interfaces :
- SPI/USART/USB
- Package :
- Tray
- Operating Supply Voltage (Max) :
- 5.5(V)
- Power Supplies :
- 3/5 V
- Lead Free :
- Lead Free
- Brand :
- Microchip Technology / Atmel
- Base Product Number :
- ATMEGA32
- Number of I/O Lines :
- 22
- Operating Temperature :
- -40°C~85°C TA
- Package Shape :
- Square
- DAC Channels :
- No
- RoHS Status :
- ROHS3 Compliant
- Operating Temperature (Min) :
- -40C
- Terminal Position :
- QUAD
- Reach Compliance Code :
- Compliant
- Core Processor :
- AVR
- Device Core Size :
- 8(b)
- Number of SPI Channels :
- 1
- RoHS :
- Details
- Mounting Type :
- Surface Mount
- Number of Terminals :
- 32
- RAM Size :
- 1K x 8
- Interface Type :
- SPI/USART/USB
- Contact Plating :
- Tin
- Total Internal Ram Size :
- 1KB(kB)
- Mounting :
- Surface Mount
- Product :
- MCU
- CPU Family :
- AVR RISC
- Terminal Form :
- Gull wing
- Peak Reflow Temperature (Cel) :
- 260
- Terminal Finish :
- Matte Tin (Sn)
- Supplier Device Package :
- 32-TQFP (7x7)
- Data Bus Width :
- 8B
- Product Type :
- 8-bit Microcontrollers - MCU
- DMA Channels :
- No
- Pin Count :
- 32
- Height :
- 1.05mm
- Connectivity :
- SPI, UART/USART, USB
- Bit Size :
- 8
- Maximum Operating Temperature :
- +85 °C
- Length :
- 7mm
- Clock Freq :
- 16(MHz)
- Seated Height-Max :
- 1.2 mm
- Operating Supply Voltage (Min) :
- 2.7(V)
- Number of I/O :
- 22
- Number of Terminations :
- 32
- Family Name :
- ATmega32U2
- Number of Timers/Counters :
- 2
- Programmable :
- yes
- Core Size :
- 8-Bit
- Density :
- 256 kb
- Dimensions :
- 7 x 7 x 1.05mm
- Temperature Grade :
- Industrial
- Additional Feature :
- ALSO OPERATES AT 2.7 V MINIMUM SUPPLY AT 8 MHZ
- Pbfree Code :
- yes
- ROM Programmability :
- Flash
- Data Converters :
- --
- MSL :
- MSL 3 - 168 hours
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Operating Temperature (Max) :
- 85C
- Termination :
- SMD/SMT
- Number of Timers - General Purpose :
- 2
- Typical Operating Supply Voltage :
- 2.7 → 5.5 V
- Mount :
- Surface Mount
- Radiation Hardening :
- No
- Watchdog Timer :
- yes
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Product Category :
- 8-bit Microcontrollers - MCU
- Voltage - Supply (Vcc/Vdd) :
- 2.7V~5.5V
- Surface Mount :
- yes
- Instruction Set Architecture :
- RISC
- Operating Temp Range :
- -40C to 85C
- RAM (bytes) :
- 1024
- Manufacturer :
- Microchip
- Mounting Style :
- SMD/SMT
- Series :
- AVR® ATmega
- PWM Channels :
- yes
- Terminal Pitch :
- 0.8mm
- # I/Os (Max) :
- 22
- Operating Supply Voltage (Typ) :
- 3.3/5(V)
- JESD-30 Code :
- S-PQFP-G32
- Frequency :
- 16MHz
- Published :
- 2012
- Device Core :
- AVR
- Tradename :
- AVR
- Operating Temperature Classification :
- Industrial
- Base Part Number :
- ATmega32U2
- Interface :
- SPI, UART, USART, USB
- Qualification :
- -
- Product Status :
- Active
- Minimum Operating Temperature :
- -40 °C
- Factory Lead Time :
- 4 Weeks
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Width :
- 7mm
- REACH SVHC :
- No SVHC
- Number of PWM Channels :
- 5
- ROM (words) :
- 16384
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/Os :
- 22 I/O
- Package Type :
- TQFP
- Program Memory Type :
- Flash
- Speed :
- 16MHz
- Has ADC :
- No
- Package / Case :
- 32-TQFP
- Number of Pins :
- 32
- JESD-609 Code :
- e3
- Packaging :
- Tray
- Memory Size :
- 32kB
- Supply Current-Max :
- 21 mA
- Qualification Status :
- Not Qualified
- Rad Hardened :
- No
- EEPROM Size :
- 1K x 8
- Datasheets
- ATMEGA32U2-AU
ATMEGA32U2-AU Documents

Microcontrollers Microchip Technology ATMEGA32U2-AU Overview
The ATMEGA32U2-AU from Microchip Technology is a robust 8-bit microcontroller that provides a seamless integration of versatility and efficiency for a wide range of applications. This microcontroller, embedded in a compact 32TQFP package, features 32KB of in-system programmable flash, allowing for robust program storage and fast access speeds. The integration of USB functionality enhances its applicability for modern digital devices, making the ATMEGA32U2-AU a prime choice for developers looking to leverage advanced MCU technology with reduced development times and increased application flexibility. The inclusion of a full-speed USB interface supports end-product designs that require agile and versatile communication capabilities.
ATMEGA32U2-AU Features
- 32KB ISP flash memory
- USB 2.0 interface for Full-speed operation at 12 Mbps
- Up to 16 MIPS throughput at 16 MHz
- JTAG interface for boundary-scan, on-chip debugging, and programming
- Power-efficient operation — supports Idle, Power-down, and Standby modes
- Enhanced RISC architecture with 135 powerful instructions – most executable in a single clock cycle
- 32TQFP package for efficient PCB real estate usage
ATMEGA32U2-AU Applications
- USB Peripherals: The integrated USB module makes it ideal for developing USB interface peripherals such as keyboards, mice, and other human interface devices. The MCU ensures efficient handling of USB protocols and data transfer.
- Automotive Applications: Suitable for in-vehicle systems that require robust serial communication capabilities, such as diagnostic tools and media controllers.
- Consumer Electronics: Utilized in household electronics like smart home devices and remote controls, where low power consumption and high functionality are critical.
- Industrial Control: Powers complex industrial machinery interfaces, providing reliable operation and connectivity essential for modern industrial applications.
- Medical Devices: Embedded in medical monitoring systems due to its robust processing capabilities and compatibility with stringent medical standards for device safety and reliability.
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