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Description

AT32UC3A3/A4 Series

AT32UC3A3/A4 Series Summary

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

AT32UC3A3256, AT32UC3A3256S, AT32UC3A3128, AT32UC3A3128S, AT32UC3A364, AT32UC3A364S, AT32UC3A4256, AT32UC3A4256S, AT32UC3A4128, AT32UC3A4128S, AT32UC3A464, AT32UC3A464S

AT32UC3A3/A4 Series

AT32UC3A3/A4 Series Complete

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

AT32UC3A3256, AT32UC3A3256S, AT32UC3A3128, AT32UC3A3128S, AT32UC3A364, AT32UC3A364S,AT32UC3A4256, AT32UC3A4256S, AT32UC3A4128, AT32UC3A4128S, AT32UC3A464, AT32UC3A464S

Atmel AVR 32-bit Architecture Manual

Atmel AVR 32-bit Architecture Manual Complete

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AVR32 UC3 USB DFU Bootloader

AVR32 UC3 USB DFU Bootloader Complete

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AVR32UC Technical Reference Manual

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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.

Key Parameters

Parameter
Value

Flash (Kbytes):

256 Kbytes

Pin Count:

144

Max. Operating Freq. (MHz):

84 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

 

Ordering Codes

Ordering Code Package Speed Power Supply Operational Range Comment Buy Online Samples
AT32UC3A3256-CTUR TFBGA 7U 144 Industrial (A) (-40°C to 85°C) Buy Request
AT32UC3A3256-CTUT TFBGA 7U 144 Industrial (A) (-40°C to 85°C) Buy Request
AT32UC3A3256-ALUR LQFP 144AA 144 Industrial (A) (-40°C to 85°C) Buy Request
AT32UC3A3256-ALUT LQFP 144AA 144 Industrial (A) (-40°C to 85°C) Buy Request