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ATUC256L4U-AUT 32-bit AVR microcontroller with 256KB flash, 32KB SRAM, 50MHz clock. In 48-TQFP package with 36 I/O and USB connectivity.
Mfr Part #:

ATUC256L4U-AUT

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
32-bit AVR microcontroller with 256KB flash, 32KB SRAM, 50MHz clock. In 48-TQFP package with 36 I/O and USB connectivity.
✓ Total Stock: 23,173 pcs

ATUC256L4U-AUT Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
23,173 pcs
On Request
23173 pcs On Request 1 On Request On Request 2020+ On Request On Request
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ATUC256L4U-AUT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
Lead Style
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Termination Style
Voltage
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ATUC256L4U-AUT Description

Short technical summary and product information.

The ATUC256L4U-AUT is a 32-bit AVR microcontroller from Microchip Technology, part of the AVR32 UC3 L series. It features a single-core AVR processor running at up to 50MHz, delivering 64 DMIPS performance from flash with one wait state. The device includes 256KB of flash program memory and 32KB of SRAM for data storage.

 

Peripherals include 12-channel DMA, 36 PWM channels, brown-out detection, power-on reset, and watchdog timer. Connectivity options include I²C, SPI, UART/USART, and USB (full/low speed device). An internal oscillator eliminates the need for external clock components. The microcontroller operates from 1.62V to 3.6V supply voltage and across -40°C to 85°C temperature range.

 

Packaged in a compact 48-TQFP (7x7mm) surface-mount package, the ATUC256L4U-AUT is suitable for embedded applications requiring moderate processing power, low power consumption, and rich peripheral integration. The device is RoHS3 compliant with MSL 3 moisture sensitivity.

ATUC256L4U-AUT Quick Information

Product Type: Microcontroller
Series: AVR32 UC3 L
Canonical Name: Microchip Technology ATUC256L4U-AUT 32-bit AVR Microcontroller
Subcategory: AVR32 Microcontrollers

ATUC256L4U-AUT Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): Moisture Sensitivity Level 3 (168 hours)
REACH Status: REACH Unaffected

ATUC256L4U-AUT Features

  • 32-bit AVR core with 50MHz clock.
  • 256KB flash and 32KB SRAM memory.
  • 36 I/O with USB and serial interfaces.
  • 12-channel DMA for peripheral transfers.
  • Operates from 1.62V to 3.6V supply.

ATUC256L4U-AUT Applications

  • Embedded control with moderate processing needs.
  • USB-enabled portable device applications.
  • Industrial automation and sensor interfaces.
  • Low-power battery-operated systems.

ATUC256L4U-AUT FAQs

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

1.62V to 3.6V.

What package does the ATUC256L4U-AUT come in?

48-TQFP (7x7mm).

What is the operating temperature range?

-40°C to 85°C (TA).

Is the ATUC256L4U-AUT RoHS compliant?

Yes, RoHS3 compliant.

What is the maximum clock frequency?

50MHz.

How much flash memory does it have?

256KB.

What connectivity interfaces are available?

I²C, SPI, UART/USART, and USB.

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