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ATSAM3U1CB-CU
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Product Detailed Parameters
- Description：IC MCU 32BIT 64KB FLASH 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：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 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 ATSAM3U1CB-CU is a 32-bit ARM Cortex-M3 microcontroller operating at up to 96 MHz. It features 64 Kbytes of Flash memory, 20 Kbytes of SRAM, and 16 Kbytes of ROM. The device includes a High-Speed USB Device Port with embedded transceiver, an External Bus Interface with NAND Flash controller, up to 4 USARTs, up to 2 TWIs, up to 5 SPIs, and multiple timers. It supports low-power modes including Sleep, Wait, and Backup. The component operates from 1.62V to 3.6V and is available in a 100-pin TFBGA package.
Feature Summary
- High-performance 32-bit ARM Cortex-M3 processor running at up to 96 MHz
- Integrated High-Speed USB Device Port with embedded transceiver
- External Bus Interface supporting NAND Flash controller with ECC
- Multiple communication interfaces including USART, TWI, and SPI
Applications
- Data loggers
- PC peripherals
- USB to SDIO bridges
- USB to SPI bridges
- USB to External Bus Interface bridges
Procurement Notes
Verify the specific suffix 'CU' against the manufacturer's official documentation to confirm package type (TFBGA) and temperature range. Ensure compatibility with required voltage levels and interface configurations for your design. Cross-reference the datasheet revision date to ensure all technical specifications are current before finalizing procurement.
Selection Notes
Select this model when a compact 100-pin solution with integrated USB capabilities is required. Consider the 64 Kbyte Flash and 20 Kbyte SRAM limits for application complexity. Evaluate the need for the External Bus Interface if external memory or NAND Flash connectivity is necessary for 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 is designed for high-speed data transfers and USB applications. The ATSAM3U1 variant specifically offers reduced memory sizes compared to the ATSAM3U2 and ATSAM3U4 models within the same family.
Replacement Considerations
ATSAM3U2CB-CU
FAQ
What is the maximum operating frequency of the ATSAM3U1CB-CU?
The device operates at a maximum speed of 96 MHz.
Does the ATSAM3U1CB-CU support NAND Flash?
Yes, it includes an External Bus Interface with a NAND Flash controller that supports ECC.
What low-power modes are supported by this microcontroller?
The device supports three software-selectable low-power modes: Sleep, Wait, and Backup.
