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ATSAM3U2CA-CU
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Product Detailed Parameters
- Description：IC MCU 32BIT 128KB FLSH 100TFBGA
- 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：57
- Program Memory Size：128KB (128K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：36K x 8
- Voltage - Supply (Vcc/Vdd)：1.62V ~ 3.6V
- Data Converters：A/D 4x10b, 4x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：100-TFBGA (9x9)
- Package / Case：100-TFBGA
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Overview
The ATSAM3U2CA-CU is a 32-bit ARM Cortex-M3 microcontroller operating at up to 96 MHz. It features 128 Kbytes of Flash memory and 36 Kbytes of SRAM. The device includes a High-Speed USB Device Port, HSMCI for SD/MMC, an External Bus Interface with NAND controller, four USARTs, two TWIs, five SPIs, and multiple timers. It supports three low-power modes: Sleep, Wait, and Backup. The unit operates from 1.62V to 3.6V and is housed in a 100-ball TFBGA package.
Feature Summary
- Integrates a High-Speed USB Device Port with embedded transceiver for data transfer applications.
- Includes a High-Speed Multimedia Card Interface (HSMCI) supporting SDIO, SD, and MMC protocols.
- Features an External Bus Interface with a dedicated NAND Flash controller and ECC support.
- Provides Real-time Event Management allowing peripherals to react without processor intervention.
Applications
- Data loggers
- PC peripherals
- High-speed bridges such as USB to SDIO or USB to SPI
Procurement Notes
Verify the specific suffix 'CU' against official documentation to confirm the 100-ball TFBGA package and industrial temperature range (-40°C to +85°C). Ensure compatibility with the required voltage levels and pinout configurations before finalizing procurement decisions.
Selection Notes
Select this component when a design requires a balance of processing power and connectivity. The SAM3U series is suitable for applications needing high-speed data transfers via USB or external bus interfaces while maintaining low power consumption through selectable sleep and backup modes.
Part Context
This part belongs to the Atmel SMART SAM3U series of Flash microcontrollers based on the ARM Cortex-M3 core. The series is designed to sustain high-speed data transfers using a multi-layer bus matrix and multiple SRAM banks. It targets applications requiring robust peripheral sets including USB, multimedia card interfaces, and extensive I/O capabilities.
Replacement Considerations
ATSAM3U2CA-AU
FAQ
What are the available low-power modes?
The device supports three software-selectable low-power modes: Sleep, Wait, and Backup.
Does the ATSAM3U2CA-CU include a NAND Flash controller?
Yes, it includes an External Bus Interface with a NAND Flash controller featuring a 4 Kbyte RAM buffer and ECC.
