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ATSAM3S4BA-AU The ATSAM3S4BA-AU is a 32-bit ARM Cortex-M3 microcontroller from Atmel, featuring 256KB Flash memory, 48KB RAM, and a 64MHz clock speed in a 64-LQFP package.
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ATSAM3S4BA-AU

Available from 1 distributors
Mfr Name: Atmel
Atmel
The ATSAM3S4BA-AU is a 32-bit ARM Cortex-M3 microcontroller from Atmel, featuring 256KB Flash memory, 48KB RAM, and a 64MHz clock speed in a 64-LQFP package.
✓ Total Stock: 2,236 pcs

ATSAM3S4BA-AU Available from 1 distributor

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2,236 pcs
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ATSAM3S4BA-AU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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ATSAM3S4BA-AU Description

Short technical summary and product information.

The ATSAM3S4BA-AU is a high-performance 32-bit microcontroller based on the ARM Cortex-M3 processor core, operating at up to 64 MHz. It integrates 256 KB of Flash memory and 48 KB of SRAM, providing ample storage for complex embedded applications. The device includes a rich set of peripherals such as USB 2.0 device, multiple USARTs, I2C, SPI, and a 10-channel 12-bit ADC with differential inputs and programmable gain.

 

Designed for low-power operation, the ATSAM3S4BA-AU supports Sleep and Backup modes, drawing as little as 3 µA in Backup mode. It features a built-in voltage regulator for single-supply operation, Power-on-Reset, Brown-out Detector, and Watchdog timer for reliable system operation. The microcontroller is housed in a 64-lead LQFP package with a 0.5 mm pitch and 10x10 mm body, suitable for surface-mount assembly.

 

This MCU is pin-to-pin compatible with AT91SAM7S legacy products, simplifying upgrades. It is ideal for industrial control, consumer electronics, and communication interfaces requiring a balance of performance, memory, and connectivity.

ATSAM3S4BA-AU Quick Information

Product Type: Microcontroller
Canonical Name: ATSAM3S4BA-AU Microcontroller
Subcategory: ARM Cortex-M3

ATSAM3S4BA-AU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATSAM3S4BA-AU Features

  • ARM Cortex-M3 core at 64 MHz.
  • 256 KB Flash and 48 KB SRAM.
  • USB 2.0 device with on-chip transceiver.
  • 12-bit ADC with differential inputs and 1 Msps.
  • Low-power modes down to 3 µA.

ATSAM3S4BA-AU Applications

  • Industrial control and automation systems.
  • Consumer electronics and IoT devices.
  • Communication interfaces and protocol converters.
  • Motor control and power management.

ATSAM3S4BA-AU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATSAM3S4BA-AU?

The ATSAM3S4BA-AU operates from 1.62V to 3.6V.

What package does the ATSAM3S4BA-AU come in?

The ATSAM3S4BA-AU is available in a 64-lead LQFP package with a 10x10 mm body and 0.5 mm pitch.

What is the operating temperature range of the ATSAM3S4BA-AU?

The ATSAM3S4BA-AU operates from -40°C to +85°C.

Is the ATSAM3S4BA-AU RoHS compliant?

The ATSAM3S4BA-AU is listed as RoHS3 compliant, but this status is unverified.

What is the maximum clock frequency of the ATSAM3S4BA-AU?

The maximum clock frequency is 64 MHz.

How much Flash memory does the ATSAM3S4BA-AU have?

The ATSAM3S4BA-AU has 256 KB of Flash memory.

What communication interfaces are available on the ATSAM3S4BA-AU?

The ATSAM3S4BA-AU supports I2C, MMC, SPI, SSC, UART/USART, and USB.

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