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AT91SAM3S Lineup

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Part number	Family	Manufacturer	Core Variant	Freq.	Flash/ROM	Package
ATSAM3S1A	AT91SAM3S		ARM Cortex-M3	64MHz	16384KROM	LQFP 48, QFN 48
ATSAM3S1B	AT91SAM3S		ARM Cortex-M3	64MHz	16384KROM	LQFP 64, QFN 64
ATSAM3S1C	AT91SAM3S		ARM Cortex-M3	64MHz	16384KROM	LQFP 100, LFBGA 100
ATSAM3S2A	AT91SAM3S		ARM Cortex-M3	64MHz	16384KROM	LQFP 48, QFN 48
ATSAM3S4A	AT91SAM3S		ARM Cortex-M3	64MHz	16384KROM	LQFP 48, QFN 48
ATSAM3S2C	AT91SAM3S		ARM Cortex-M3	64MHz	16384KROM	LQFP 100, LFBGA 100
ATSAM3S2B	AT91SAM3S		ARM Cortex-M3	64MHz	16384KROM	LQFP 64, QFN 64
ATSAM3S4B	AT91SAM3S		ARM Cortex-M3	64MHz	16384KROM	LQFP 64, QFN 64
ATSAM3S4C	AT91SAM3S		ARM Cortex-M3	64MHz	16384KROM	LQFP 100, LFBGA 100

Group lineup : ATSAM3Sx

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SAM3S Series: Highly-integrated Cortex™- M3 Flash MCUs Simplify PCB Design and Reduce Power Consumption

Atmel extends its One-stop Shop for ARM-based micros with the SAM3S, a Cortex-M3 Flash MCU series that integrates features to simplify PCB design and reduce power consumption down to 2.3 mW at 1 MHz operation.Inspired by the best-selling SAM7S series, the SAM3S provides the ideal migration path to a more powerful and feature-rich MCU, while preserving hardware and software investments.

Simplified PCB Design and Low System Cost

Integrated serial resistors eliminate the need for external resistors to preserve signal integrity, resulting in reduced BOM cost, real estate savings and simplified PCB design.

1.62 to 3.6V Operation and Low Power

True 1.8V±10% operation extends device operation when running from two AA alkaline batteries. The SAM3S only consumes1.45mW/MHz at 64 MHz operation and 1.6 uA in backup mode with the RTC running.

Parallel Capture Mode

The SAM3S is the first ARM MCU with parallel data capture mode on PIOs and DMA support. The parallel data capture mode on the PIOs complements the external bus interface for data collection from external devices that are not compliant with standard memory read protocols, such as low-cost image sensors.

Safety and Security

Memory protection unit improves code protection and secures multi-application/task execution. Unique 128-bit ID and scrambled external bus interface ensure software confidentiality while the hardware CRC checks memory integrity.

Pin-to-pin Compatibility between SAM3S and SAM7S MCUs

In its 64-pin version, the SAM3S is pin-to-pin compatible with the SAM7S, enabling customers to upgrade performance while maintaining hardware, thus preserving previously made investments.

Data Speedway

Native 4-layer bus AHB matrix support with 21 peripheral DMA channels and distributed memory for high-speed uninterrupted data flows with minimum processor overhead.

Application Areas

Consumer, industrial control, metering, toys, medical,test and measurement, 802.15.4 wireless networking, and PC, cell phone and gaming peripherals.