Microchip Technology ATUC256L3U-AUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $10.12 | $10.12 |
| 15+ | $9.80 | $147.00 |
| 25+ | $9.59 | $239.75 |
| 50+ | $9.05 | $452.50 |
| 100+ | $7.99 | $799.00 |
| N+ | $1.60 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR®32 UC3 L |
| Packaging | Cut Tape (CT) | NULL |
| Core Processor | AVR |
| Core Size | 32-Bit Single-Core |
| Speed | 50MHz |
| Connectivity | I2C, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Number of I/O | 51 |
| Program Memory Size | 256KB (256K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 32K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.62V ~ 3.6V |
| Data Converters | A/D 8x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-TQFP (10x10) |
| Package / Case | 64-TQFP |
| ROHS |  |
The Microchip ATUC256L3U-AUR is a 32-bit AVR microcontroller with 256KB flash and 32KB SRAM. It runs at 50MHz with a 1.62V-3.6V supply range. Integrated DMA, PWM, and watchdog timer support real-time embedded control in industrial and portable applications.
- High integration: DMA and PWM reduce external components and CPU overhead.
- Wide voltage range: 1.62V-3.6V enables battery and 3.3V rail designs.
- Reliable operation: Brown-out reset and watchdog ensure system stability.
- Compact footprint: 64-TQFP package suits space-limited PCBs.
Industrial Control Systems
With a 50MHz AVR core, DMA controller, and PWM, the ATUC256L3U-AUR handles real-time motor control and sensor feedback loops efficiently.
Smart Metering
Low power consumption (1.62V min) and robust WDT ensure reliable long-term operation in utility metering applications.
Portable Medical Devices
The 256KB flash and 32KB RAM support complex algorithms for patient monitoring while the wide voltage range accommodates battery power.
Automotive Aftermarket
Operating from -40°C to 85°C, this MCU suits in-vehicle telematics and body control modules requiring deterministic interrupt handling.
IoT Edge Nodes
DMA reduces CPU load for sensor data aggregation, and the small 64-TQFP package fits space-constrained designs.
Power Management
Brown-out detection and POR ensure safe state transitions in power supply sequencing controllers.
- Q: What is the maximum operating frequency of the ATUC256L3U-AUR?
- A: The ATUC256L3U-AUR operates at up to 50 MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.62V to 3.6V.
- Q: How much flash memory does it have?
- A: It has 256KB of program flash memory.
- Q: What package is available?
- A: It comes in a 64-TQFP package.
ATUC256L3U-AUR.pdf
- Q: What is the maximum operating frequency of the ATUC256L3U-AUR?
- A: The ATUC256L3U-AUR operates at up to 50 MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.62V to 3.6V.
- Q: How much flash memory does it have?
- A: It has 256KB of program flash memory.
- Q: What package is available?
- A: It comes in a 64-TQFP package.
