ATUC128L3U-AUT 32-bit AVR microcontroller with 128KB Flash, 32KB SRAM, operating at up to 50MHz. Housed in a 64-TQFP package.
Mfr Part #:

ATUC128L3U-AUT

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
32-bit AVR microcontroller with 128KB Flash, 32KB SRAM, operating at up to 50MHz. Housed in a 64-TQFP package.
✓ Total Stock: 23,162 pcs

ATUC128L3U-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
Non-Authorised Inventory information
23,162 pcs
23162 pcs On Request 1 On Request On Request 2020+ On Request On Request

ATUC128L3U-AUT Specifications Quick View

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

ATUC128L3U-AUT Description

Short technical summary and product information.

The ATUC128L3U-AUT is a 32-bit AVR microcontroller from Microchip Technology featuring a high-performance single-cycle RISC instruction set. It provides 128KB of Flash program memory, 32KB of SRAM, and operates at speeds up to 50MHz. Connectivity options include I2C, SPI, UART/USART, and USB, with 51 general-purpose I/O lines. Peripherals include Brown-out Detect/Reset, DMA, POR, PWM, and Watchdog Timer. The device operates from 1.62V to 3.6V and over a temperature range of -40°C to +85°C.

 

The MCU integrates an internal oscillator, an 8-channel 12-bit A/D converter, and supports multi-layer bus architecture with 12 peripheral DMA channels for efficient data transfers. It is designed for surface-mount assembly in a 64-TQFP (10x10mm) package.

ATUC128L3U-AUT Quick Information

Product Type: Microcontroller
Series: ATUC
Canonical Name: ATUC128L3U-AUT – Microchip 32-bit AVR Microcontroller, 128KB Flash, 64-TQFP
Subcategory: Embedded MCU

ATUC128L3U-AUT Compliance

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

ATUC128L3U-AUT Features

  • 32-bit AVR core operating up to 50MHz.
  • 128KB Flash with 32KB SRAM memory.
  • Supports I2C, SPI, UART/USART, USB connectivity.
  • Internal oscillator and 8-channel 12-bit ADC.
  • Surface-mount 64-TQFP (10x10mm) package.

ATUC128L3U-AUT Applications

  • Industrial control and automation systems.
  • USB-enabled embedded peripheral devices.
  • Low-power sensor and data acquisition modules.
  • Motor control with PWM and timer peripherals.
  • Consumer electronics requiring 32-bit processing.

ATUC128L3U-AUT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATUC128L3U-AUT?

The supply voltage range is 1.62V to 3.6V.

What package does the ATUC128L3U-AUT use?

It is housed in a 64-TQFP (10x10mm) surface-mount package.

What is the operating temperature range of this microcontroller?

It operates from -40°C to +85°C (TA).

Is the ATUC128L3U-AUT RoHS compliant?

The part is marked as RoHS3 Compliant, but this status is unverified and should be confirmed with manufacturer documentation.

How much Flash and SRAM memory does the ATUC128L3U-AUT have?

It includes 128KB of Flash program memory and 32KB of SRAM.

What connectivity interfaces are available on this MCU?

It supports I2C, SPI, UART/USART, and USB.

What is the maximum clock speed of the ATUC128L3U-AUT?

The maximum speed is 50MHz.

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