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ATmega32U4

Status: In Production

Features:

  • Complies fully with Universal Serial Bus Specification Rev 2.0
  • Supports data transfer rates up to 12Mbit/s and 1.5Mbit/s
  • Endpoint 0 for Control Transfers: up to 64-bytes
  • Six Programmable Endpoints with IN or Out Directions and with Bulk, Interrupt or Isochronous Transfers
  • Configurable Endpoints size up to 256 bytes in double bank mode
  • Fully independent 832 bytes USB DPRAM for endpoint memory allocation
  • Suspend/Resume Interrupts
  • CPU Reset possible on USB Bus Reset detection
  • 48MHz from PLL for Full-speed Bus Operation
  • USB Bus Connection/Disconnection on Microcontroller Request
  • Crystal-less operation for Low Speed mode
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The low-power Microchip 8-bit AVR RISC-based microcontroller featuring 32KB self-programming flash program memory, 2.5KB SRAM, 1KB EEPROM, USB 2.0 full-speed/low speed device, 12-channel 10-bit A/D-converter, and JTAG interface for on-chip-debug. The device achieves up to 16 MIPS throughput at 16 MHz. 2.7 - 5.5 Volt operation.

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, allowing you to optimize power consumption versus processing speed.

Additional Features
    • USB 2.0 Full-speed/Low Speed Device Module with Interrupt on Transfer Completion
      • Complies fully with Universal Serial Bus Specification Rev 2.0
      • Supports data transfer rates up to 12Mbit/s and 1.5Mbit/s
      • Endpoint 0 for Control Transfers: up to 64-bytes
      • Six Programmable Endpoints with IN or Out Directions and with Bulk, Interrupt or Isochronous Transfers
      • Configurable Endpoints size up to 256 bytes in double bank mode
      • Fully independent 832 bytes USB DPRAM for endpoint memory allocation
      • Suspend/Resume Interrupts
      • CPU Reset possible on USB Bus Reset detection
      • 48MHz from PLL for Full-speed Bus Operation
      • USB Bus Connection/Disconnection on Microcontroller Request
      • Crystal-less operation for Low Speed mode
Parametrics
Name
Value
Program Memory Type
Flash
Program Memory Size (KB)
32
CPU Speed (MIPS/DMIPS)
16
SRAM Bytes
2,560
Data EEPROM/HEF (bytes)
1024
Digital Communication Peripherals
1-UART, 2-SPI, 1-I2C
Capture/Compare/PWM Peripherals
2 Input Capture, 2 CCP, 12PWM
Timers
2 x 8-bit, 2 x 16-bit
Number of Comparators
1
Number of USB Modules
1, Full Speed
Temperature Range (°C)
-40 to 85
Operating Voltage Range (V)
2.7 to 5.5
Pin Count
44

Documents

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Application Notes

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MISC

12/10/2016
2468KB

Software Libraries/Firmware

01/02/2017
27KB

White Papers

Development Environment

  • Integrated Development Environments
  • Emulators & Debuggers
  • Programmers
  • Demo & Evaluation Boards
Integrated Development Environments
Atmel Studio
Atmel Studio IDE ( Atmel Studio )

Studio 7 is the integrated development platform (IDP) for developing and debugging all AVR® and SAM microcontroller applications. The Atmel Studio 7 IDP gives you a seamless and easy-to-use environment to write, build and debug your applications written in C/C++ or assembly code. It also connects seamlessly to the debuggers, programmers and development kits that support AVR® and SAM...

Learn More
MPLAB X IDE
MPLAB X Integrated Development Environment (IDE) ( MPLAB X IDE )

MPLAB X IDE is a software program that runs on a PC (Windows®, Mac OS®, Linux®) to develop applications for Microchip microcontrollers and digital signal controllers. It is called an Integrated Development Environment (IDE) because it provides a single integrated "environment" to develop code for embedded microcontrollers.

MPLAB X Integrated Development Environment...

Learn More
Emulators & Debuggers
MPLAB PICkit 4 In-Circuit Debugger
MPLAB PICkit 4 In-Circuit Debugger ( PG164140 )

Fast programming, increased functionality, at the same price as its predecessor.

The MPLAB PICkit 4 now has Programmer-to-Go functionality for 8-bit and 32-bit PIC MCUs. The firmware update comes with MPLAB X IDE v5.25. More to come!


The MPLAB® PICkit™ 4 In-Circuit Debugger/Programmer allows fast and easy debugging and programming of PIC®,

...

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Add To Cart
Atmel-ICE Full Kit
Atmel-ICE Full Kit ( ATATMEL-ICE )

Atmel-ICE is a powerful development tool for debugging and programming ARM® Cortex®-M based SAM and AVR microcontrollers with on-chip debug capability.

Atmel-ICE supports:

  • Programming and on-chip debugging of all AVR 32-bit MCUs on both JTAG and aWire interfaces
  • Programming and on-chip debugging of all AVR
...

Learn More
Add To Cart
Programmers
MPLAB PICkit 4 In-Circuit Debugger
MPLAB PICkit 4 In-Circuit Debugger ( PG164140 )

Fast programming, increased functionality, at the same price as its predecessor.

The MPLAB PICkit 4 now has Programmer-to-Go functionality for 8-bit and 32-bit PIC MCUs. The firmware update comes with MPLAB X IDE v5.25. More to come!


The MPLAB® PICkit™ 4 In-Circuit Debugger/Programmer allows fast and easy debugging and programming of PIC®,

...

Learn More
Add To Cart
Atmel-ICE Full Kit
Atmel-ICE Full Kit ( ATATMEL-ICE )

Atmel-ICE is a powerful development tool for debugging and programming ARM® Cortex®-M based SAM and AVR microcontrollers with on-chip debug capability.

Atmel-ICE supports:

  • Programming and on-chip debugging of all AVR 32-bit MCUs on both JTAG and aWire interfaces
  • Programming and on-chip debugging of all AVR
...

Learn More
Add To Cart
Demo & Evaluation Boards
Power Debugger kit
Power Debugger kit ( ATPOWERDEBUGGER )

Power Debugger is a powerful development tool for debugging and programming AVR microcontrollers using UPDI, JTAG, PDI, debugWIRE, aWire, TPI or SPI target interfaces and ARM® Cortex®-M based SAM microcontrollers using JTAG or SWD target interfaces.

In addition the Power Debugger has two independent current sensing channels for measuring and optimizing the power consumption of

...

Learn More
Add To Cart
ATSTK600 Kit
ATSTK600 Kit ( ATSTK600 )

A complete starter kit and development system for the 8-bit and 32-bit AVR microcontrollers that gives designers a quick start to develop code on the AVR, with advanced features for prototyping and testing new designs.

The AVR device connects to the STK600 using an innovative routing and socketcard sandwich system, which routes the signals from the device to the appropriate...

Learn More
Add To Cart
MPLAB(R) Snap In-Circuit Debugger
MPLAB(R) Snap In-Circuit Debugger ( PG164100 )

Our most affordable debugger has power to impress.

The MPLAB® Snap In-Circuit Debugger/Programmer allows affordable, fast and easy debugging and programming of most PIC®, dsPIC®, AVR and SAM flash MCUs, using the powerful graphical user interface of MPLAB X Integrated Development Environment (IDE) version 5.05 or later. The MPLAB Snap can be connected to a computer

...

Learn More
Add To Cart

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
ATMEGA32U4RC-AUR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA32U4-AU
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA32U4-AUR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA32U4RC-AU
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA32U4RC-MUR
0.132100
0.262500
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA32U4-MU
0.132100
0.600962
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA32U4RC-MU
0.132100
0.600962
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA32U4-MUR
0.132100
0.262500
44
VQFN
7x7x1mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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