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ATSAM3U1EA-AU
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Product Detailed Parameters
- Description：IC MCU 32BIT 64KB FLASH 144LQFP
- Series：SAM3U
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：ARM® Cortex®-M3
- Core Size：32-Bit Single-Core
- Speed：96MHz
- Connectivity：EBI/EMI, I2C, Memory Card, SPI, SSC, UART/USART, USB
- Peripherals：Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O：96
- Program Memory Size：64KB (64K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：20K x 8
- Voltage - Supply (Vcc/Vdd)：1.62V ~ 3.6V
- Data Converters：A/D 8x10b, 8x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：144-LQFP (20x20)
- Package / Case：144-LQFP
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Overview
The ATSAM3U1EA-AU is a 32-bit ARM Cortex-M3 microcontroller operating at 96 MHz. It features 64 kB Flash, 20 kB SRAM, and 16 kB ROM. The device includes a USB 2.0 High-Speed Device port, up to 4 USARTs, 5 SPIs, 2 TWIs, an HSMCI, and multiple ADCs. It operates from 1.62 V to 3.6 V in a 144-lead LQFP package.
Feature Summary
- Integrates a high-performance 32-bit ARM Cortex-M3 processor with Memory Protection Unit.
- Includes a dedicated USB 2.0 High-Speed Device port with embedded transceiver.
- Supports low-power operation through Sleep, Wait, and Backup modes.
- Features a multi-layer bus matrix for parallel task execution and high data throughput.
Applications
- USB devices
- Data loggers
- PC peripherals
- High-speed bridges
Procurement Notes
Verify the specific suffix EA against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with existing schematic designs regarding pinout and power supply requirements before procurement.
Selection Notes
Select this model for applications requiring 64 kB of program memory and 20 kB of RAM within a 144-pin form factor. Consider the integrated voltage regulator and available communication interfaces when designing the system architecture.
Part Context
This component belongs to the Atmel SMART SAM3U series of Flash microcontrollers based on the ARM Cortex-M3 core. The series provides scalable memory options and peripheral sets suitable for various embedded control and connectivity applications.
Replacement Considerations
ATSAM3U1CA-AU
FAQ
What are the supported low-power modes?
The device supports Sleep, Wait, and Backup modes to optimize power consumption based on application requirements.
Does the ATSAM3U1EA-AU include a USB interface?
Yes, it features a USB 2.0 High-Speed Device port with an embedded transceiver and dedicated DMA channels.
