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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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Product Document

12/10/2016
2468KB

Software

08/13/2012
27KB

User Guides

08/02/2017
312KB

White Papers

Development Environment

  • Demo & Evaluation Boards
  • Emulators & Debuggers
  • Programmers
  • Application Examples
Demo & Evaluation Boards
XPRO Shield Adapter
XPRO Shield Adapter ( ATARDADPT-XPRO )

The XPRO-Shield Adapter enables Xplained Pro boards to be interfaced with standard Arduino shields.

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Generic socketcard (STK600-TQFP44) for devices in TQFP44 package - 0.8 Pitch - 1
Generic socketcard (STK600-TQFP44) for devices in TQFP44 package - 0.8 Pitch - 1 ( ATSTK600-SC06 )

Generic socket card for devices in TQFP44 package, 0.8 Pitch, 10x10 Body Size

For an overview of card combinations and supported devices see Device Support Table

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ATSTK600-SC10
ATSTK600-SC10 ( ATSTK600-SC10 )

Generic socketcard for devices in TQFP32 package, 0.8 Pitch, 7x7 Body Size

For an overview of card combinations and supported devices see Device Support Table

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ATSTK600-SC12
ATSTK600-SC12 ( ATSTK600-SC12 )

Socket card for 32-pins QFN 0.5 mm pitch devices. Supplements the STK600 Starter Kit.

For an overview of card combinations and supported devices see Device Support Table

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ATSTK600-SC21
ATSTK600-SC21 ( ATSTK600-SC21 )

STK600 socket card for 64-pins QFN 0.5 mm pitch devices. Supplements the STK600 Starter Kit.

For an overview of card combinations and supported devices see Device Support Table

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ATmega328PB-XMINI
ATmega328PB-XMINI ( ATMEGA328PB-XMINI )

The ATmega328PB Xplained Mini evaluation kit is a hardware platform for evaluating the ATmega328PB microcontroller (MCU). The evaluation kit comes with a fully integrated debugger that provides seamless integration with Atmel Studio. The kit provides access to the features of the ATmega328PB MCU, enabling easy integration of the device into a custom design.

The kit features two

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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

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ATmega168PB-XMINI
ATmega168PB-XMINI ( ATMEGA168PB-XMINI )

The ATmega168PB Xplained Mini evaluation kit is a hardware platform for evaluating the ATmega168PB microcontroller. The evaluation kit comes with a fully-integrated debugger that provides seamless integration with Atmel Studio. The kit provides access to the features of the ATmega168PB enabling easy integration of the device in a custom design.

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ATmega328P-XMINI
ATmega328P-XMINI ( ATMEGA328P-XMINI )

The ATmega328P Xplained Mini evalutation kit is a hardware platform for evaluating the ATmega328P microcontroller. The evaluation kit comes with a fully integrated debugger that provides seamless integration with Atmel Studio. The kit provides access to the features of the ATmega328P enabling easy integration of the device in a custom design

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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
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ATmega324PB-XPRO
ATmega324PB-XPRO ( ATMEGA324PB-XPRO )

The ATmega324PB Xplained Pro evalutation kit is a hardware platform for evaluating the ATmega324PB microcontroller (MCU). The ATmega324PB-XPRO evaluation kit does not include extension boards which can be purchased individually. ATmega324PB Xplained Pro currently supports more than 20 extension boards including wired and wireless connectivity, crytpo authentication, QTouch capacitive touch

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Debug Shield Adapter
Debug Shield Adapter ( ATARD-DBGADPT )

The Debug Adapter Shield leverages a user to program and debug Arduino boards using IDEs like Studio with -ICE and JTAGICE3.

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MEGA-1284P Xplained
MEGA-1284P Xplained ( ATMEGA1284P-XPLD )

The MEGA-1284P Xplainedevaluation kit is a hardware platform for evaluating the ATmega1284Pmicrocontrollers. The MEGA-1284P Xplained contain one QTouch button sensor, three mechanical buttons, four LEDs, 3 analog sensors, and a UART to USB bridge. The AVR Xplained expansion headers provide easy access to analog and digital I/O pins. The board is powered by the USB cable and equipped with the

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STK521 KIT
STK521 KIT ( ATSTK521 )

The ATSTK521 board is a hardware expansion module for the STK500 Starter Kit. It adds support for the AVR 20-pin AT90PWM81 device.

The STK521 includes connectors, jumpers allowing full support for all features on the AT90PWM81.

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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.

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AT90USBKey2
AT90USBKey2 ( AT90USBKEY2 )

The low-cost demonstration board based on the AT90USB1287 microcontroller allows quick evaluation of AVR microcontrollers and the AT90USB family. The key simply connects to the USB port of a personal computer to retrieve on-board documentation and run AVR programs. Designers can either run demonstration programs or their own application. The board also permits access to the JTAG port and all...

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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...

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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...

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AVR Butterfly
AVR Butterfly ( ATAVRBFLY )

The evaluation tool is shipped with preloaded firmware that supports temperature sensing, light measurement, voltage readings and music playback. AVR Butterfly can also be used as a nametag. AVR Butterfly can be reprogrammed from AVR Studio using a serial cable for use as a development kit for the onboard ATmega169PV, or even as target hardware for simple applications. The bootloader source code...

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

Fast programming, increased functionality, at the same price.


The MPLAB® PICkit™ 4 In-Circuit Debugger/Programmer allows fast and easy debugging and programming of PIC® ,  dsPIC®, and CEC flash microcontrollers, using the powerful graphical user interface of MPLAB X Integrated Development Environment (IDE), version

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Programmers
MPLAB PICkit 4 In-Circuit Debugger
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Fast programming, increased functionality, at the same price.


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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
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
ATMEGA32U4-MUR
0.132100
0.033000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA32U4RC-MUR
0.132100
0.033000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA32U4RC-MU
0.132100
0.600962
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA32U4-MU
0.132100
0.600962
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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