Microchip Technology ATMEGA32U2-MU Microcontrollers
IC MCU 8BIT 32KB FLASH 32VQFN
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
ATMEGA32U2-MU
Base Model
Detailed Description
IC MCU 8BIT 32KB FLASH 32VQFN
Package
32-VFQFN Exposed Pad
Lifecycle Status
Active
Datasheet
ATMEGA32U2-MU Datasheet
Quick Jump:
Technical Specifications
Microchip Technology ATMEGA32U2-MU Microcontrollers technical specifications.
General
Series
ATmega32U2
RAM Size
1K x 8
Data Bus Width
8 bit
Maximum Clock Frequency
16 MHz
RoHS
Yes
Package / Case
32-VFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.7V ~ 5.5V
Lifecycle Status
Active
Alternate Parts Comparison (ATMEGA32U2-MU vs ATMEGA32U4-MU vs ATMEGA32U4-AUR vs ATMEGA32U4RC-MUR)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Series | ATmega32U2 | ATmega32U4 | ATmega32U4 | ATmega32U4 |
| Package / Case | 32-VFQFN Exposed Pad | 44-VFQFN Exposed Pad | 44-TQFP | 44-VFQFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supply Voltage | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Data Bus Width | 8 bit | 8 b | 8 bit | 8 bit |
| Core Processor | AVR | AVR | AVR | AVR |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| RAM Size | 1K x 8 | 2.5 kB | 2.5K x 8 | 2.5K x 8 |
| RoHS | Yes | Compliant | Yes | Yes |
| Lifecycle Status | Active | Production | Active | Active |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
CY8C4025AXI-S402Infineon TechnologiesSimilar FunctionalityInfineon
IC MCU 32BIT 32KB FLASH 32TQFP
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Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
ATMEGA32U4-MUMicrochip Technology8-bit AVR MCU, 32 KB, 2560 Bytes, 16 MHz, 2.7 to 5.5V, VQFN-44, RoHS