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AT32UC3B1256-Z1UT 32-bit AVR microcontroller with 256KB flash memory, 32KB SRAM, operating at 60 MHz. Features USB 2.0, multiple serial interfaces, and 28 GPIOs in a compact 48-QFN package.
Mfr Part #:

AT32UC3B1256-Z1UT

Available from 1 distributors
Mfr Name: Atmel
Atmel
32-bit AVR microcontroller with 256KB flash memory, 32KB SRAM, operating at 60 MHz. Features USB 2.0, multiple serial interfaces, and 28 GPIOs in a compact 48-QFN package.
Total Stock: 10 pcs

AT32UC3B1256-Z1UT Available from 1 distributor

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AT32UC3B1256-Z1UT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
ADC Resolution
Audio DAC
Connectivity
Core Processor
Core Size
DMA Channels
Data Converters
Data Retention
Flash Write Endurance
Maximum DMIPS
Mounting Type
Number of ADC channels
Number of I
Number of SPI Interfaces
Number of TWI (I2C) Interfaces
Number of USARTs
Operating Temperature
Oscillator Type
PWM Channels
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Timer Count
USB Interface
Voltage

AT32UC3B1256-Z1UT Description

Short technical summary and product information.

The AT32UC3B1256-Z1UT is a 32-bit AVR microcontroller from Atmel (Microchip Technology) based on the AVR32 UC3 B core. It operates at up to 60 MHz, delivering 83 DMIPS from flash memory. The device integrates 256KB of flash with 100,000 write cycles and 15-year data retention, along with 32KB of SRAM.

 

Key peripherals include USB 2.0 device and embedded host (full/low speed), three USARTs, one SPI, one TWI (I2C), a 7-channel PWM controller, a 3-channel 16-bit timer, and a 6-channel 10-bit ADC. An internal oscillator eliminates the need for external clock components. The supply voltage range is 1.65V to 3.6V, and the operating temperature range is -40°C to 85°C.

 

The microcontroller is housed in a 48-VFQFN exposed pad package (7x7mm) with surface mount mounting. It is suitable for space-constrained embedded applications requiring USB connectivity, mixed-signal processing, and low-power operation.

AT32UC3B1256-Z1UT Quick Information

Product Type: Microcontroller
Series: UC3 B
Canonical Name: AT32UC3B1256-Z1UT 32-bit AVR Microcontroller
Subcategory: 32-bit Microcontroller

AT32UC3B1256-Z1UT Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

AT32UC3B1256-Z1UT Features

  • 32-bit AVR core running at 60 MHz.
  • 256KB flash with 100,000 write cycles.
  • 28 GPIOs with multiple serial interfaces.
  • USB 2.0 device and embedded host.
  • Operates from 1.65V to 3.6V.

AT32UC3B1256-Z1UT Applications

  • Ideal for industrial control applications.
  • Suitable for USB-enabled embedded systems.
  • Used in audio processing with built-in DAC.
  • Perfect for low-power portable devices.

AT32UC3B1256-Z1UT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the AT32UC3B1256-Z1UT?

The supply voltage range is 1.65V to 3.6V.

What package does the AT32UC3B1256-Z1UT come in?

It is available in a 48-VFQFN exposed pad package (48-QFN 7x7mm) for surface mount mounting.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

Is the AT32UC3B1256-Z1UT RoHS compliant?

RoHS status is listed as RoHS3 compliant, but this is unverified.

What is the maximum clock speed?

The microcontroller operates at up to 60 MHz.

How much flash memory does it have?

It has 256KB of flash memory with 100,000 write cycles and 15-year data retention.

What communication interfaces are available?

It supports I2C, IrDA, SPI, SSC, UART/USART, and USB 2.0 (device and embedded host).

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