Product Summary

The ATMEGA32U4-AU is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATMEGA32U4-AU achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Parametrics

ATMEGA32U4-AU absolute maximum ratings: (1)Operating Temperature: -55℃ to +125℃; (2)Storage Temperature: -65℃ to +150℃; (3)Voltage on any Pin except RESET; (4)with respect to Ground: -0.5V to VCC+0.5V; (5)Voltage on RESET with respect to Ground: -0.5V to +13.0V; (6)Maximum Operating Voltage: 6.0V; (7)DC Current per I/O Pin: 40.0 mA; (8)DC Current VCC and GND Pins: 200.0 mA and 400.0 mA TQFP/MLF.

Features

ATMEGA32U4-AU features: (1)Complies fully with Universal Serial Bus Specification Rev 2.0; (2)Supports data transfer rates up to 12 Mbit/s and 1.5 Mbit/s; (3)Endpoint 0 for Control Transfers: up to 64-bytes; (4)6 Programmable Endpoints with IN or Out Directions and with Bulk, Interrupt or Isochronous Transfers; (5)Configurable Endpoints size up to 256 bytes in double bank mode; (6)Fully independent 832 bytes USB DPRAM for endpoint memory allocation; (7)Suspend/Resume Interrupts; (8)CPU Reset possible on USB Bus Reset detection; (9)48 MHz from PLL for Full-speed Bus Operation; (10)USB Bus Connection/Disconnection on Microcontroller Request; (11)Crystal-less operation for Low Speed mode.

Diagrams

ATMEGA32U4-AU block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
ATMEGA32U4-AU
ATMEGA32U4-AU

Atmel

8-bit Microcontrollers (MCU) AVR USB 32K FLASH INDUSTRIAL

Data Sheet

0-1: $3.62
1-10: $3.02
10-25: $2.27
25-100: $2.05
ATMEGA32U4-AUR
ATMEGA32U4-AUR

Atmel

8-bit Microcontrollers (MCU) USB 16K FLASH 16 MHz

Data Sheet

0-1255: $2.08
1255-1500: $2.08