ATUC256L4U-AUR ATUC256L4U-AUR is a 32-bit AVR microcontroller from Microchip Technology featuring 256KB Flash, 32KB RAM, and a 50MHz clock speed. It is housed in a 48-TQFP package for surface mount applications.
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ATUC256L4U-AUR

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
ATUC256L4U-AUR is a 32-bit AVR microcontroller from Microchip Technology featuring 256KB Flash, 32KB RAM, and a 50MHz clock speed. It is housed in a 48-TQFP package for surface mount applications.
✓ Total Stock: 23,172 pcs

ATUC256L4U-AUR Available from 1 distributor

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ATUC256L4U-AUR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Oscillator Type
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ATUC256L4U-AUR Description

Short technical summary and product information.

The ATUC256L4U-AUR is a high-performance 32-bit AVR microcontroller from Microchip Technology, based on the AVR core. It operates at a maximum speed of 50MHz and features 256KB of Flash program memory and 32KB of SRAM. The device supports a wide range of connectivity options including I2C, SPI, UART/USART, and USB, making it suitable for diverse embedded applications.

 

Key peripherals include Brown-out Detect/Reset, DMA, Power-On Reset, PWM, and Watchdog Timer. The microcontroller includes 36 I/O lines and an 8-channel 12-bit A/D converter. It operates from a supply voltage of 1.62V to 3.6V and has an internal oscillator. The operating temperature range is -40°C to 85°C.

 

The ATUC256L4U-AUR is supplied in a 48-TQFP (7x7mm) surface mount package, suitable for compact designs. It is part of the UC3 L series, offering a balance of performance and low power consumption for industrial and consumer applications.

ATUC256L4U-AUR Quick Information

Product Type: Microcontroller
Series: UC3 L
Canonical Name: ATUC256L4U-AUR by Microchip Technology - 32-bit AVR Microcontroller with 256KB Flash, 48-TQFP
Subcategory: AVR Microcontrollers

ATUC256L4U-AUR Compliance

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

ATUC256L4U-AUR Features

  • 32-bit AVR core with 50MHz speed.
  • 256KB Flash and 32KB SRAM memory.
  • 36 I/O pins with multiple serial interfaces.
  • Operating voltage range 1.62V to 3.6V.
  • Wide temperature range -40°C to 85°C.

ATUC256L4U-AUR Applications

  • Ideal for industrial control and automation.
  • Suitable for IoT devices with USB connectivity.
  • Used in embedded systems requiring low power.
  • Designed for sensor interfacing and data logging.

ATUC256L4U-AUR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATUC256L4U-AUR?

The supply voltage range is 1.62V to 3.6V.

What package is the ATUC256L4U-AUR available in?

It is available in a 48-TQFP (7x7mm) surface mount package.

What is the operating temperature range of the ATUC256L4U-AUR?

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

Is the ATUC256L4U-AUR RoHS compliant?

It is listed as RoHS3 compliant, but this is unverified.

What is the maximum clock speed of the ATUC256L4U-AUR?

The maximum clock speed is 50MHz.

How much Flash memory does the ATUC256L4U-AUR have?

It has 256KB of Flash program memory.

How many I/O pins are available on the ATUC256L4U-AUR?

It has 36 I/O pins.

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