AT32UC3A3256-ALUR
- Mfr.Part #
- AT32UC3A3256-ALUR
- Manufacturer
- Microchip Technology
- Package / Case
- 144-LQFP
- Datasheet
- Download
- Description
- IC MCU 32BIT 256KB FLASH 144LQFP
- Stock
- 871
- In Stock :
- 871
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Product Category :
- 32-bit Microcontrollers - MCU
- Base Part Number :
- AT32UC3A3256
- Speed :
- 66MHz
- DMA Channels :
- yes
- Core Processor :
- AVR
- Peak Reflow Temperature (Cel) :
- 260
- ROM (words) :
- 262144
- Height Seated (Max) :
- 1.6mm
- Memory Size :
- 256KB
- Packaging :
- Tape and Reel (TR)
- JESD-30 Code :
- S-PQFP-G144
- Manufacturer :
- Microchip
- Number of I/O Lines :
- 110
- EEPROM Size :
- --
- Core Size :
- 32-Bit
- Address Bus Width :
- 24
- DAC Channels :
- yes
- Series :
- AVR®32 UC3 A3
- Minimum Operating Temperature :
- - 40 C
- Number of I/Os :
- 110 I/O
- Data Bus Width :
- 32b
- RoHS Status :
- ROHS3 Compliant
- Tradename :
- AVR
- Data Converters :
- A/D 8x10b
- Bit Size :
- 32
- Has ADC :
- yes
- Temperature Grade :
- Industrial
- Operating Temperature :
- -40°C~85°C TA
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Terminal Pitch :
- 0.5mm
- Product Status :
- Active
- Published :
- 2012
- External Data Bus Width :
- 16
- DAC Resolution :
- 16 bit
- Number of I/O :
- 110
- Surface Mount :
- yes
- Terminal Finish :
- Matte Tin (Sn) - annealed
- Interface :
- 2-Wire, EBI/EMI, I2C, I2S, IrDA, MMC, SCI, SPI, UART, USART, USB
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Mounting Type :
- Surface Mount
- CPU Family :
- AVR RISC
- Base Product Number :
- AT32UC3
- Mount :
- Surface Mount
- Reach Compliance Code :
- Compliant
- Oscillator Type :
- Internal
- Factory Lead Time :
- 12 Weeks
- Package Shape :
- Square
- Package / Case :
- 144-LQFP
- JESD-609 Code :
- e3
- Program Memory Size :
- 256KB 256K x 8
- Product :
- MCU
- Product Type :
- 32-bit Microcontrollers - MCU
- Frequency :
- 66MHz
- Pbfree Code :
- yes
- PWM Channels :
- No
- Interface Type :
- 2-Wire, I2S, JTAG, SPI, USART
- Number of Programmable I/O :
- 23
- Length :
- 20mm
- Additional Feature :
- IT ALSO OPERATES AT 3.3 V
- Qualification Status :
- Not Qualified
- RAM (bytes) :
- 65536
- Height :
- 1.6 mm
- Terminal Form :
- Gull wing
- RAM Size :
- 128K x 8
- Number of Terminals :
- 144
- Number of Pins :
- 144
- RoHS :
- Details
- Operating Supply Voltage :
- 3.3V
- Interfaces :
- IrDA/SCI/SCIF/UDI
- ROM Programmability :
- Flash
- Contact Plating :
- Tin
- Brand :
- Microchip Technology
- Memory Type :
- FLASH, SRAM
- Maximum Operating Temperature :
- + 85 C
- Number of Timers/Counters :
- 3
- Data Converter :
- A/D 8x10b
- Width :
- 20.1 mm
- Voltage - Supply (Vcc/Vdd) :
- 1.75V~3.6V
- Mounting Style :
- SMD/SMT
- Supply Voltage-Max (Vsup) :
- 1.95V
- Number of Terminations :
- 144
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Seated Height-Max :
- 1.6 mm
- Supplier Device Package :
- 144-LQFP (20x20)
- Power Supplies :
- 1.8,3.3 V
- Package :
- Tape and Reel (TR);Cut Tape (CT);Digi-Reel®;
- Number of ADC Channels :
- 8 Channel
- Terminal Position :
- QUAD
- Connectivity :
- EBI/EMI, I2C, IrDA, Memory Card, SPI, SSC, UART/USART, USB OTG
- Peripherals :
- Brown-out Detect/Reset, DMA, POR, WDT
- Supply Voltage :
- 1.85V
- Program Memory Type :
- Flash
- Datasheets
- AT32UC3A3256-ALUR
AT32UC3A3256-ALUR Documents

Microcontrollers Microchip Technology AT32UC3A3256-ALUR Overview
The Microcontrollers Microchip Technology AT32UC3A3256-ALUR is a highly capable 32-bit microcontroller that targets demanding applications requiring a substantial amount of memory and processing power. Designed by Microchip Technology, this MCU integrates 256KB of in-system programmable flash and operates at a high level of efficiency. Its compact 144LQFP packaging makes it ideal for sophisticated yet space-constrained applications. This microcontroller not only offers robust performance but also provides a scalable option for developers looking to manage complex tasks within stringent power and space budgets, making it a preferred choice for advanced embedded systems.
AT32UC3A3256-ALUR Features
The AT32UC3A3256-ALUR microcontroller is equipped with several features that enhance its utility in complex embedded systems:
- 32-bit AVR architecture providing efficient processing and optimal power consumption.
- 256KB of flash memory ensuring ample space for application code and data storage.
- High-performance capabilities with a clock speed sufficient for intensive applications.
- Comprehensive interface options including SPI, UART, and USB, facilitating versatile peripheral integrations.
- 144-pin LQFP package, offering a compact footprint suitable for space-sensitive applications.
AT32UC3A3256-ALUR Applications
- Industrial Automation: This MCU can be used to manage and control machinery in automated production lines, providing reliable processing capabilities that help maintain efficiency and precision.
- Medical Devices: Its high reliability and robust feature set make it suitable for critical medical applications such as monitoring systems and portable diagnostic instruments.
- Consumer Electronics: The AT32UC3A3256-ALUR is perfect for enhancing the intelligence and connectivity of smart home devices and personal gadgets, owing to its powerful interface options.
- Automotive: This microcontroller supports applications in automotive modules, including infotainment systems and advanced driver-assistance systems (ADAS), by providing the necessary computational power and connectivity features.
- Communication Systems: It is also ideal for communication infrastructure equipment, facilitating data handling and signal processing tasks efficiently.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















