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ATUC64L4U-ZAUT 32-bit AVR microcontroller with 64KB Flash memory and 16KB RAM. Operates at up to 50MHz with 1.62V to 1.98V supply and includes USB, I2C, SPI, UART interfaces.
Mfr Part #:

ATUC64L4U-ZAUT

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
32-bit AVR microcontroller with 64KB Flash memory and 16KB RAM. Operates at up to 50MHz with 1.62V to 1.98V supply and includes USB, I2C, SPI, UART interfaces.
✓ Total Stock: 23,190 pcs

ATUC64L4U-ZAUT 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
23,190 pcs
On Request
23190 pcs On Request 1 On Request On Request 2020+ On Request On Request
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ATUC64L4U-ZAUT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Core Size
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ATUC64L4U-ZAUT Description

Short technical summary and product information.

The ATUC64L4U-ZAUT is a 32-bit AVR microcontroller from Microchip Technology, part of the AVR32 UC3 L series. It features a high-performance 32-bit AVR core running at up to 50MHz, delivering 64 DMIPS. The device includes 64KB of Flash program memory and 16KB of SRAM, with single-cycle access up to 25MHz. It supports a wide range of peripherals including Brown-out Detect/Reset, DMA, POR, PWM, and Watchdog Timer. Connectivity options include I2C, SPI, UART/USART, and USB. The microcontroller operates from 1.62V to 1.98V supply voltage and is rated for -40°C to +85°C ambient temperature. It is housed in a 48-VFQFN exposed pad package (48-QFN 7x7mm) and is surface mountable. The device is listed as RoHS compliant and has MSL level 1. It is suitable for low-power, high-performance embedded applications requiring USB connectivity and a rich peripheral set.

ATUC64L4U-ZAUT Quick Information

Product Type: Microcontroller
Series: AVR32 UC3 L
Canonical Name: ATUC64L4U-ZAUT 32-bit AVR Microcontroller
Subcategory: 32-bit Microcontroller

ATUC64L4U-ZAUT Compliance

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

ATUC64L4U-ZAUT Features

  • 32-bit AVR core at up to 50MHz.
  • 64KB Flash and 16KB SRAM memory.
  • I2C, SPI, USB, UART/USART interfaces.
  • 36 programmable I/O and 7 timers.
  • Supply voltage range 1.62V to 1.98V.

ATUC64L4U-ZAUT Applications

  • USB-enabled embedded control systems.
  • Industrial automation and sensor interfaces.
  • Low-power portable devices.
  • Real-time control with PWM and DMA.
  • Automotive and IoT applications.

ATUC64L4U-ZAUT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATUC64L4U-ZAUT?

1.62V to 1.98V (per manufacturer page; existing database shows 1.62V to 3.6V, discrepancy exists).

What package does the ATUC64L4U-ZAUT come in?

48-VFQFN Exposed Pad (48-QFN 7x7mm).

What is the operating temperature range?

-40°C to 85°C.

Is the ATUC64L4U-ZAUT RoHS compliant?

The part is listed as RoHS3 compliant, but the compliance data is unverified.

What is the maximum operating frequency?

50 MHz.

How much Flash memory and RAM does it have?

64KB Flash and 16KB RAM.

What communication interfaces are available?

I2C, SPI, UART/USART, and USB.

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