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SAM3U Series Microcontroller


Atmel’s SAM3U series is the first 32-bit ARM Cortex™-M3 microcontroller with high-speed 480 Mbps USB + Phy


SAM3U Series MicrocontrollerWith today’s exponential growth in data rates, system designers demand solutions capable of moving more data faster and more efficiently than ever before. Atmel’s Cortex® M3-based SAM3U delivers high-speed interfaces combined with an innovative high data bandwidth architecture that make it the ideal device for applications with intensive communication requirements.

The 96MHz SAM3U integrates multiple high-speed peripherals, including an on-chip high-speed USB device and Phy at 480Mbps. A combination of a 5-layer system bus matrix, 23 DMA channels and distributed memory prevents bottlenecks with minimum processor overhead. With sophisticated power management techniques and an operating voltage down to 1.62V, the SAM3U maximizes battery usage and provides true 1.8V operation. The SAM3U is available in Flash memory densities of 64K, 128K and 256Kbytes with 100- and 144-pin QFP and BGA package options.

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Features

High-Speed Bridging The SAM3U is designed to sustain 100+ Mpbs data rates between multiple high-speed peripherals, including HS USB 2.0, SDIO/SDCard 2.0, MMC 4.3, External Bus Interface and SPI.
Data Speedway To exploit the SAM3U’s high-speed communications peripherals fully, the device is built around a high data-bandwidth architecture that enables one to run tasks in parallel and ensures uninterrupted internal and external data flows with minimum processor overhead. The device can be put in backup mode with the core and peripherals powered down, in which power consumption is only 2.5μA.
Safety and Security The SAM3U ensures robust operation thanks to multiple system functions, including a Memory Protection Unit, dual-bank Flash and backup clock mechanism. A 128-bit unique ID enables traceability or seed for encryption.
Low Power Consumption The SAM3U incorporates power management techniques that minimize power consumption under all conditions of use, whether in active mode or low-power modes.
SAM3U Ecosystem Atmel's SAM3U Flash MCU is supported by a rapidly growing number of development tools, real-time operating systems (RTOS), middleware products and technical support services from industry-leading third parties. Atmel provides a dedicated software package for the SAM3U with register descriptions and device drivers for all peripherals, along with project examples that ease the use of the microcontroller.

Diagram

SAM3U Series Microcontroller

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Digi-Key P/N Atmel P/N Description Datasheet
ATSAM3U-EK-ND ATSAM3U-EK KIT EVAL FOR AT91SAM3U CORTEX Datasheet
ATSAM3U2CA-AU-ND ATSAM3U2CA-AU IC MCU 32BIT 128KB FLASH 100LQFP Datasheet
ATSAM3U2CA-CU-ND ATSAM3U2CA-CU IC MCU 32BIT 128KB FLSH 100TFBGA
ATSAM3U2EA-AU-ND ATSAM3U2EA-AU IC MCU 32BIT 128KB FLASH 144LQFP
ATSAM3U2EA-CU-ND ATSAM3U2EA-CU IC MCU 32BIT 128KB FLSH 144LFBGA
ATSAM3U4CA-AU-ND ATSAM3U4CA-AU IC MCU 32BIT 256KB FLASH 100LQFP
ATSAM3U4CA-CU-ND ATSAM3U4CA-CU IC MCU 32BIT 256KB FLSH 100TFBGA
ATSAM3U4EA-CU-ND ATSAM3U4EA-CU IC MCU 32BIT 256KB FLSH 144LFBGA
ATSAM3U1CA-AU-ND ATSAM3U1CA-AU IC MCU 32BIT 64KB FLASH 100LQFP
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