ATUC64L4U-ZAUR The ATUC64L4U-ZAUR is a 32-bit AVR microcontroller from Microchip Technology with 64KB Flash memory, 16KB SRAM, and a maximum clock frequency of 50MHz. It comes in a 48-VFQFN exposed pad package and supports USB, SPI, I2C, and UART interfaces.
Mfr Part #:

ATUC64L4U-ZAUR

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The ATUC64L4U-ZAUR is a 32-bit AVR microcontroller from Microchip Technology with 64KB Flash memory, 16KB SRAM, and a maximum clock frequency of 50MHz. It comes in a 48-VFQFN exposed pad package and supports USB, SPI, I2C, and UART interfaces.
✓ Total Stock: 23,189 pcs

ATUC64L4U-ZAUR Available from 1 distributor

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ATUC64L4U-ZAUR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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ATUC64L4U-ZAUR Description

Short technical summary and product information.

The ATUC64L4U-ZAUR is a 32-bit AVR microcontroller built on Microchip's picoPower technology for ultra-low power consumption. It features a compact single-cycle RISC instruction set including DSP instructions, and a memory protection unit (MPU) with secure access unit. The device operates at up to 50MHz from Flash with one wait state, or 25MHz with zero wait states, delivering up to 64 DMIPS performance.

 

On-chip memory includes 64KB of Flash and 16KB of SRAM, both accessible in single cycles up to 25MHz. The Flash memory supports FlashVault technology for secure library storage and is rated for 100,000 write cycles with 15-year data retention. The microcontroller integrates 12 peripheral DMA channels, a 12-channel 12-bit ADC, six 16-bit timer/counter channels, and 36 PWM channels with 12-bit resolution.

 

Connectivity options include USB Full Speed/Low Speed device, four USARTs, one SPI, and I2C. The device includes a brown-out detect/reset, power-on reset, and watchdog timer. It is housed in a 48-VFQFN exposed pad package (7x7mm) for surface mount assembly, rated for operation from -40°C to 85°C ambient temperature.

ATUC64L4U-ZAUR Quick Information

Product Type: Microcontroller
Canonical Name: Microchip ATUC64L4U-ZAUR 32-bit AVR Microcontroller
Subcategory: AVR Microcontrollers

ATUC64L4U-ZAUR Compliance

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

ATUC64L4U-ZAUR Features

  • 32-bit AVR core with single-cycle RISC instructions.
  • 64KB Flash and 16KB SRAM internal memory.
  • Operates from 1.62V to 3.6V supply voltage range.
  • Up to 50MHz clock speed from Flash memory.
  • Includes 12-channel DMA and 12-bit ADC.

ATUC64L4U-ZAUR Applications

  • Used in industrial control systems requiring low power.
  • Suitable for USB-enabled embedded designs.
  • Ideal for sensor interface and data acquisition.
  • Applicable in portable and battery-powered devices.
  • Used in automation and IoT edge nodes.

ATUC64L4U-ZAUR FAQs

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

1.62V to 3.6V.

What package does the ATUC64L4U-ZAUR come in?

48-VFQFN Exposed Pad (48-QFN 7x7).

What is the operating temperature range?

-40°C to 85°C.

Is the ATUC64L4U-ZAUR RoHS compliant?

It is listed as RoHS3 Compliant, though this status is unverified.

What is the maximum clock speed of the ATUC64L4U-ZAUR?

50MHz from Flash with 1 wait state, or 25MHz with 0 wait state.

How many I/O pins does the ATUC64L4U-ZAUR have?

36.

What interfaces are supported by the ATUC64L4U-ZAUR?

I2C, SPI, UART/USART, and USB (Full Speed/Low Speed).

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