Microchip Technology ATUC128D4-AUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $94,999.99 | $94,999.99 |
| 15+ | $91,999.99 | $1,379,999.85 |
| 25+ | $89,999.99 | $2,249,999.75 |
| 50+ | $84,999.99 | $4,249,999.50 |
| 100+ | $74,999.99 | $7,499,999.00 |
| N+ | $15,000.00 | Price Inquiry |
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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.
- 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.

ATUC128D4-AUR.pdf