AT32UC3A1256-AUT Part Information

Details for AT32UC3A1256-AUT by Microchip Technology

AT32UC3A1256

Part Description

The high-performance, low-power 32-bit AVR RISC-based microcontroller combines 256KB flash, 64KB SRAM, 10/100 ethernet MAC, full-speed (12 Mbps) USB 2.0 with embedded host capability, I2S, and a built-in audio D/A converter. The MCU achieves 91 Dhrystone MIPS (DMIPS) at 66 MHz while consuming only 40 mA at 3.3V. The Peripheral Direct Memory Access (PDCA) controller transfers data between peripherals and memories without processor involvement, drastically reducing processing with continuous large data streams within the MCU. The AT32UC3A1256AU is the Audio version of the AT32UC3A1256. It allows the execution of Microchip licensed Audio firmware IPs. One version is available: AT32UC3A1256AU-AUR: TQFP100, industrial (-40°C to +85°C), reel conditioning.

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Part Specifications

Part Family A0/A1 Series
Architecture 32
Core 32-bit AVR
MaxSpeed (MHz) 66
CPU Type 32-bit AVR
CPU Speed (MIPS/DMIPS) 91
Program Memory Type Flash
SelfWrite Yes
Program Memory Size (KB) 256
Program Memory Size (KWords) 64
Secure Bootloader (CodeGuard™ Security) None
RAM (bytes) 65536
Direct Memory Access (DMA) Channels 15
Temp. Range Min. -40
Temp. Range Max. 85
Max I/O Pins 69
Pin Count 100
Power On Reset (POR) Yes
Internal Voltage Reference (Bandgap) Yes
Internal Oscillator 115Khz
Number of ADCs 1
ADC Channels 8
Max ADC Sampling Rate (ksps) 384
Max ADC Resolution (bits) 10
Max ADC Sample/Hold (S/H) 1
Number of DACs 1
DAC outputs 2
Max DAC Resolution (bits) 16
UART 4
SPI™ 6
I2C 1
I2S 1
SSC 1
Max 16 Bit Digital Timers 3
Hardware RTCC Yes
Watch Dog Timers (WDT) Yes
Timers 10
Input Capture 6
Max # PWM outputs (including complementary outputs) 13
Output Compare Channels 16
Number of USB Modules 1
USB Interface Device + OTG
Type of CAN module None
IrDA Yes
Ethernet 10/100 Base-TX Mac
Integrated Wireless Frequency None
Wireless Technology None
Peripheral Pin Select (PPS)/Pin Muxing Yes
JTAG Debug/Program/Boundary Scan
Debug Interface JTAG
Temperature Range -40C to +85C

Alternative Part Descriptions

  • MICROCONTROLLER MCU, 32 BIT, AVR32, 66MHZ, TQFP-100; Product Range:AT32 Family AT32UC3A Series Microcontrollers; Architecture:AVR32; No. of Bits:32bit; CPU Speed:66MHz; Program Memory Size:256KB; RAM Memory Size:64KB RoHS Compliant: Yes | Newark Electronics
  • MCU 32-bit AT32 AVR RISC 256KB Flash 1.8V/3.3V 100-Pin TQFP Tray | Avnet America
  • 256KB Flash 100LQFP 85C green | Microchip Technology Inc
  • MCU 32-bit AT32 AVR RISC 256KB Flash 1.8V/3.3V 100-Pin TQFP Tray | Avnet Europe
  • MC 32bit 1,8V 256kB Flash 66MHz TQFP100 | Schukat Electronic
  • AT32 Series 256 kB Flash 64 kB SRAM 66 MHz 32-Bit Microcontroller - TQFP-100 | Future Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a AT32UC3A1256-AUT?

Additional datasheets, footprints and schematics for AT32UC3A1256-AUT are listed in our Part Details tab. You can also find the AT32UC3A1256-AUT image and similar parts on this details page.

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What category does AT32UC3A1256-AUT fall under?

The AT32UC3A1256-AUT is listed under AT32UC3A1256.

Can I view similar or alternative parts?

You can view similar parts to AT32UC3A1256-AUT when available in the AT32UC3A1256 range under the specifications section at the bottom of the details page.

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Is the AT32UC3A1256-AUT RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for AT32UC3A1256-AUT have stock available?

Authorised distributors including Newark Electronics, Avnet America, Microchip Technology Inc, Avnet Europe and Schukat Electronic have stock available or on a lead time for AT32UC3A1256-AUT.

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