Datasheets

Atmel AVR 32-bit Architecture Manual

Atmel AVR 32-bit Architecture Manual Complete
( file size: 5108318 , 377 pages , revision D , updated: 04/2011 )

AVR32 UC3 USB DFU Bootloader

AVR32 UC3 USB DFU Bootloader Complete
( file size: 536724 , 31 pages , revision C , updated: 05/2009 )

AT32UC3A3/A4 Series

AT32UC3A3/A4 Series Complete
( file size: 15.2MB , 1021 pages , revision H , updated: 10/2012 )

AT32UC3A3/A4 Series

AT32UC3A3/A4 Series Summary
( file size: 1.6MB , 94 pages , revision H , updated: 10/2012 )

AVR32UC Technical Reference

AVR32UC Technical Reference
( file size: 1129853 , 159 pages , revision F , updated: 03/2010 )

Atmel Digital Audio Platform

Atmel Digital Audio Platform Complete
( file size: 50471 , 2 pages , revision A , updated: 11/2011 )

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A complete system-on-chip 32-bit AVR microcontroller. It is designed for cost-sensitive embedded applications that require low power consumption, high code density and high performance.

The microcontroller's Memory Protection Unit (MPU) and fast, flexible interrupt controller support the latest real-time operating systems. Higher computation capabilities are achievable using a rich set of DSP instructions. The device incorporates on-chip flash and SRAM memories for secure and fast access. 64 KBytes of SRAM are directly coupled to the 32-bit AVR UC3 for performance optimization. Two blocks of 32 Kbytes SRAM are independently attached to the high speed bus matrix for real ping-pong management.

The microcontroller achieves exceptionally high data throughput by combining the multi-layered 32-bit AVR databus,128 KB on-chip SRAM with triple high speed interfaces, multi-channel peripheral, memory-to-memory DMA controller, high-speed USB embedded host, SD/SDIO card, MLC NAND flash with ECC, and SDRAM interfaces.

This device features 256KB internal high-speed flash, built-in hi-fi stereo audio D/A converter and full-duplex multi-channel I2S audio interface.

The AT32UC3A3256AU is the Audio version of the AT32UC3A3256. It allows the execution of Atmel licensed Audio firmware IPs.

One version is available:

  • AT32UC3A3256AU-ALUT: LQFP144, industrial (-40°C to +85°C), tray conditioning.

Key Parameters

Parameter
Value

Flash (Kbytes):

256 Kbytes

Pin Count:

144

Max. Operating Freq. (MHz):

66 MHz

CPU:

32-bit AVR

# of Touch Channels:

32

Hardware QTouch Acquisition:

No

Max I/O Pins:

110

Ext Interrupts:

110

USB Transceiver:

1

USB Speed:

Hi-Speed