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ATUC128L3U-AUR The ATUC128L3U-AUR is a 32-bit AVR microcontroller from Microchip Technology. It features 128KB Flash, 32KB RAM, 51 I/O lines, and operates at 50MHz with a supply voltage of 1.62V to 3.6V, in a 64-TQFP package.
Mfr Part #:

ATUC128L3U-AUR

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The ATUC128L3U-AUR is a 32-bit AVR microcontroller from Microchip Technology. It features 128KB Flash, 32KB RAM, 51 I/O lines, and operates at 50MHz with a supply voltage of 1.62V to 3.6V, in a 64-TQFP package.
✓ Total Stock: 23,161 pcs

ATUC128L3U-AUR Available from 1 distributor

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Smaxon Electronics ✓
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23,161 pcs
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23161 pcs On Request 1 On Request On Request 2020+ On Request On Request
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ATUC128L3U-AUR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage
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ATUC128L3U-AUR Description

Short technical summary and product information.

The ATUC128L3U-AUR is a high-performance 32-bit AVR microcontroller from Microchip Technology, based on the AVR core architecture. It operates at 50MHz and provides 128KB of Flash program memory and 32KB of SRAM, with 51 general-purpose I/O lines. The device supports a wide supply voltage range of 1.62V to 3.6V and includes a rich set of peripherals: I²C, SPI, UART/USART, and USB connectivity, along with a 12-channel DMA controller, 36 PWM channels, 8 analog comparators, and six 16-bit timer/counters. An internal oscillator eliminates the need for external clock components. The microcontroller is housed in a 64-TQFP (10x10) surface-mount package, suitable for automated assembly. Designed for industrial and embedded applications, it operates over -40°C to 85°C. The device also features brown-out detect/reset, power-on reset, and a watchdog timer for enhanced reliability.

ATUC128L3U-AUR Quick Information

Product Type: Microcontroller
Canonical Name: ATUC128L3U-AUR
Subcategory: 32-bit Microcontroller

ATUC128L3U-AUR Compliance

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

ATUC128L3U-AUR Features

  • 32-bit AVR core with 50MHz speed.
  • 128KB Flash and 32KB SRAM memory.
  • 51 I/O lines with multiple connectivity options.
  • Includes DMA, PWM, and analog comparators.
  • Surface mount 64-TQFP package.

ATUC128L3U-AUR Applications

  • Industrial control and automation systems.
  • Embedded control applications.
  • USB-enabled peripheral devices.
  • Motor control with PWM channels.
  • Data acquisition with 12-bit ADC.

ATUC128L3U-AUR FAQs

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

1.62V to 3.6V

What package is the ATUC128L3U-AUR available in?

64-TQFP (10x10) with surface mount

What is the operating temperature range?

-40°C to 85°C (TA)

Is the ATUC128L3U-AUR RoHS compliant?

RoHS3 Compliant (unverified)

What is the maximum clock speed?

50MHz

How much Flash and RAM does it have?

128KB Flash and 32KB SRAM

How many I/O pins are available?

51 I/O lines

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