Microchip Technology ATMEGA32U4-MUR Microcontrollers
IC MCU 8BIT 32KB FLASH 44VQFN
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
ATMEGA32U4-MUR
Base Model
Detailed Description
IC MCU 8BIT 32KB FLASH 44VQFN
Package
44-VFQFN Exposed Pad
Lifecycle Status
Active
Datasheet
ATMEGA32U4-MUR Datasheet
Quick Jump:
Technical Specifications
Microchip Technology ATMEGA32U4-MUR Microcontrollers technical specifications.
General
RAM Size
2.5K x 8
Package / Case
44-VFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.7V ~ 5.5V
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O
26
Speed
16MHz
EEPROM Size
1K x 8
Core Processor
AVR
Alternate Parts Comparison (ATMEGA32U4-MUR vs ATMEGA32U2-MU vs ATMEGA32U2-MUR vs ATMEGA32U2-AUR)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 44-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-TQFP |
| 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 |
| Core Processor | AVR | AVR | AVR | AVR |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| RAM Size | 2.5K x 8 | 1K x 8 | 1K x 8 | 1K x 8 |
| Connectivity | I²C, SPI, UART/USART, USB | SPI, UART/USART, USB | SPI, UART/USART, USB | SPI, UART/USART, USB |
| EEPROM Size | 1K x 8 | 1K x 8 | 1K x 8 | 1K x 8 |
| Number of I/O | 26 | 22 | 22 | 22 |
| Oscillator Type | Internal | Internal | Internal | Internal |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT |
| Action |
More Parts in Microcontrollers
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