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Normaler Preis $94,999.99
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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR®32 UC3 D
Packaging | NULL
Core Processor AVR
Core Size 32-Bit Single-Core
Speed 48MHz
Connectivity I2C, SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Number of I/O 35
Program Memory Size 128KB (128K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 16K x 8
Voltage - Supply (Vcc/Vdd) 1.65V ~ 3.6V
Data Converters A/D 6x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 48-TQFP (7x7)
Package / Case 48-TQFP

The Microchip ATUC128D4-AUR is a 32-bit AVR microcontroller engineered for audio and industrial applications. It delivers 48MHz performance with 128KB flash and 16KB SRAM, all in a compact 48-TQFP package. Its integrated I2S, DMA, and PWM peripherals simplify digital audio processing and motor control designs. Operating from 1.65V to 3.6V, it supports energy-efficient systems across -40°C to 85°C environments.

  • Low-voltage operation (1.65V) reduces power consumption for battery-powered devices, extending runtime by up to 30% compared to 3.3V-only MCUs.
  • Integrated I2S and DMA enable glitch-free audio streaming without CPU intervention, freeing processing power for application code.
  • 128KB flash provides ample space for complex firmware, including audio codecs and communication protocol stacks.
  • 48-TQFP package balances pin count and footprint, simplifying PCB routing for space-constrained designs.

Professional Audio Interfaces

The I2S peripheral enables direct connection to high-quality audio codecs, making it ideal for USB audio interfaces and mixing consoles that require 48MHz processing for real-time effects.

Industrial Control Systems

With PWM, WDT, and brown-out detection, this MCU reliably manages motor control and process automation in harsh environments, operating from -40°C to 85°C.

Portable Medical Devices

The 1.65V low-voltage operation extends battery life in handheld diagnostic tools, while DMA offloads data transfer for continuous sensor monitoring.

Smart Home Gateways

Its 128KB flash supports complex communication stacks, and the 48-TQFP package fits into compact smart home hubs for Zigbee or proprietary RF protocols.

Automotive Aftermarket Telematics

Robust WDT and POR features ensure reliable operation in vehicle tracking units, with the wide voltage range accommodating fluctuating automotive power rails.

Consumer Audio Processors

The combination of I2S and DMA allows seamless streaming of multi-channel audio in soundbars and home theater receivers, with low latency at 48MHz.

Q: What is the operating voltage range of the ATUC128D4-AUR?
A: The ATUC128D4-AUR operates from 1.65V to 3.6V, supporting low-power and battery-powered designs.
Q: What is the maximum CPU speed?
A: The AVR core runs at up to 48MHz, providing efficient processing for real-time audio and control tasks.
Q: How much flash memory does it have?
A: It includes 128KB of flash program memory and 16KB of SRAM for data storage.
Q: What package is available?
A: It comes in a 48-pin TQFP package, suitable for compact PCB layouts.
Q: Does it support audio interfaces?
A: Yes, it features an I2S interface for digital audio connectivity.
Base Product Number : ATUC128D4
128KB Flash 32-bit AVR 48-TQFP 48MHz audio processing DMA I2S industrial control low power MCU PWM
Q: What is the operating voltage range of the ATUC128D4-AUR?
A: The ATUC128D4-AUR operates from 1.65V to 3.6V, supporting low-power and battery-powered designs.
Q: What is the maximum CPU speed?
A: The AVR core runs at up to 48MHz, providing efficient processing for real-time audio and control tasks.
Q: How much flash memory does it have?
A: It includes 128KB of flash program memory and 16KB of SRAM for data storage.
Q: What package is available?
A: It comes in a 48-pin TQFP package, suitable for compact PCB layouts.
Q: Does it support audio interfaces?
A: Yes, it features an I2S interface for digital audio connectivity.