Products > Integrated Circuits (ICs) > Embedded Processors & Controllers > AT32UC3B0256-A2UT
AT32UC3B0256-A2UT TQFP-64
  • AT32UC3B0256-A2UT
Images are for reference only.


Hot Sale

AVR Microcontroller, High performance, Low Power, AT32 Family AT32UC3B Series Microcontrollers

Manufacturer :
Microchip Technology, Inc
Package/Case :
Product Categories :
32-bit Microcontrollers - MCU
RoHs Status:

Request for Quotation

Warm Tips: Please fill out the below form and we will contact you as soon as possible.

AT32UC3B0256-A2UT Product Details

The high-performance, low-power 32-bit AVR RISC-based microcontroller combines 256KB flash memory, 32KB SRAM, full-speed (12 Mbps) USB Mini-host + device, and I2S. The MCU achieves 83 Dhrystone MIPS (DMIPS) at 60MHz and consumes only 23mA at 3.3 volts.
The microcontroller's Memory Protection Unit (MPU) and fast, flexible interrupt controller support the latest real-time operating systems. The Peripheral Direct Memory Access (PDMA) controller transfers data between peripherals and memories without processor involvement, drastically reducing processing overhead with large continuous data streams between MCU modules.
The power manager improves design flexibility and security: the on-chip brown-out detector monitors the power supply, the CPU is run by the on-chip RC oscillator or one of external oscillator sources, and the Real-Time Clock (RTC) and its associated timer track time.


  • Compact single-cycle RISC instruction set including DSP instruction set
  • Performing up to 1.39DMIPS/MHz
  • Multilayer bus system - High-performance data transfers on separate buses for increased performance
  • Internal high-speed flash - Single-cycle flash access up to 30MHz
  • Internal high-speed SRAM - Single-cycle access at full speed
  • Interrupt controller - Auto vectored low latency interrupt service with programmable priority
  • System functions - Watchdog timer, real-time clock timer
  • Universal serial bus (USB) - Device 2.0 and embedded host low speed and full speed
  • One three-channel 16-bit timer/counter (TC)
  • One 7-channel 20-bit pulse width modulation controller (PWM)
  • Three universal synchronous/asynchronous receiver/transmitters (USART)
  • One Master/Slave Serial Peripheral Interface (SPI) with chip select signals
  • One synchronous serial protocol controller - Supports I2S and generic frame-based protocols
  • One Master/Slave Two-Wire Interface (TWI), 400kBps I²C-compatible
  • One 8-channel 10-bit analogue-to-digital converter, 384ksps
  • 16-bit Stereo audio bitstream DAC - Sample rate up to 50KHz
  • QTouch® library support
  • 5V Input tolerant I/Os, including 4 high-drive pins
  • Single 3.3V power supply or dual 1.8 to 3.3V power supply

Technical Parameters

Core AVR Mounting Style SMD/SMT
Data Bus Width 32 bit Interface Type 2-Wire, JTAG, SPI, USB
Maximum Clock Frequency 60 MHz Minimum Operating Temperature - 40 C
Program Memory Size 64 KB Number of Programmable I/Os 44
Data RAM Size 32 KB Number of Timers 3
On Chip ADC Yes Packaging Tray
Operating Supply Voltage 1.8 V, 3.3 V Processor Series AT32UC3x
Maximum Operating Temperature + 85 C Program Memory Type Flash, SRAM
Package / Case TQFP-64 Factory Pack Quantity 800

AT32UC3B0256-A2UT Documents

  • AT32UC3B0256 Technical Documentation of Application Note
  • AT32UC3B0256 Technical Documentation of Application Note
  • AT32UC3B0256 Technical Documentation of Application Note
  • AT32UC3B0256 Technical Documentation of Application Note

AT32UC3B0256-A2UT Related Products

Ratings and Reviews (1)

  • 5 / 5
  • 5 Stars 100%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • ****D AL KU*****

    Sehr guter Shop

  • Ratings
  • Please rate the product!
Shipping More
Estimated Delivery Time: Jan 22 - Jan 27 days (choose Expedited at checkout).

Shipping & Payment


Shipping Type Ship Fee Lead Time

$20.00-$40.00 (0.50 KG)

2-5 days

$20.00-$40.00 (0.50 KG)

3-7 days

$20.00-$45.00 (0.50 KG)

2-5 days

$25.00-$65.00 (0.50 KG)

2-5 days

$25.00-$45.00 (0.50 KG)

5-14 days

$2.00-$3.00 (0.10 KG)

7-30 days

Processing Time:Shipping fee depend on different zone and country.


Terms of payment Hand Fee Payment Site
Wire Transfer

charge US$30.00 banking fee.


charge 4.0% service fee.
Credit Card

charge 3.5% service fee.

Western Union

charge US$0.00 banking fee.
Money Gram

charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product


  • Step2:Vacuum packaging

    Step2:Vacuum packaging

  • Step3:Anti-static bag

    Step3:Anti-static bag

  • Step4:Individual packaging

    Step4:Individual packaging

  • Step5:Packaging boxes

    Step5:Packaging boxes

  • Step6:bar-code shipping tag

    Step6:bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that AT32UC3B0256-A2UT is the original manufacturer or agent of MICROCHIP?
We have a professional business development department to strictly test and verify the qualifications of MICROCHIP original manufacturers and agents. All MICROCHIP suppliers must pass the qualification review before they can publish their AT32UC3B0256-A2UT devices; we pay more attention to the channels and quality of AT32UC3B0256-A2UT products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of AT32UC3B0256-A2UT chips? Including MICROCHIP original factory information, 32-bit Microcontrollers - MCU application, AT32UC3B0256-A2UT pictures?
You can use Jotrin's intelligent search engine, or filter by AVR32 Products category, or find it through Microchip Technology, Inc Information page.
Q: Are the MICROCHIP's AT32UC3B0256-A2UT price and stock displayed on the platform accurate?
The MICROCHIP's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for AT32UC3B0256-A2UT, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of AT32UC3B0256-A2UT?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the AT32UC3B0256A2UT we delivered, we will accept the replacement or return of the AT32UC3B0256-A2UT only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of AT32UC3B0256-A2UT.
(3)The AT32UC3B0256-A2UT is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as AT32UC3B0256-A2UT datasheet pdf, AT32UC3B0256 pin diagram?
Need any After-Sales service, please feel free contact us:


Microchip Technology Inc. is a leading manufacturer of microcontroller and analog products, providing low-risk product development, lower total system cost, and faster time to market for thousands of...
  • AT32AP7000-CTUT
    AT32AP7000-CTUT MICROCONTROLLER MCU, 32 BIT, AVR32, 150MHZ, Architecture:AVR32, No. of Bits:32bit, CPU Speed:150MHz, RAM Memory Size:32KB
  • AT32UC3A0512-ALUT
    AT32UC3A0512-ALUT AVR Microcontroller, High performance, Low Power, AT32 Family AT32UC3A Series Microcontrollers
  • AT32UC3A3256-ALUT
    AT32UC3A3256-ALUT AVR Microcontroller, High performance, Low Power, AT32 Family AT32UC3A Series Microcontrollers
  • AT32UC3A1512-AUR
    AT32UC3A1512-AUR AVR Microcontroller, AVR Family AT32UC3A1 Series Microcontrollers, AVR, 32bit, 66 MHz, 512 KB
  • AT32AP7000-CTUR
    AT32AP7000-CTUR 32-bit Microcontroller,Microcontrollers (MCU) 32 KB SRAM 16 KB instruct/data caches
  • AT29LV512-12TU
    AT29LV512-12TU 120NS, TSOP, IND TEMP, GREEN(FLASH),Flash 512K(64Kx8) 3.3V - 120NS IND TEMP

Certificates & Honor

Certificates & Honor