Microchip Technology ATSAM3S8BA-MUR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series SAM3S
Packaging Cut Tape (CT) | NULL
Core Processor ARM® Cortex®-M3
Core Size 32-Bit Single-Core
Speed 64MHz
Connectivity I2C, IrDA, Memory Card, SPI, SSC, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Number of I/O 47
Program Memory Size 512KB (512K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 64K x 8
Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.6V
Data Converters A/D 10x10/12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 64-QFN (9x9)
Package / Case 64-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATSAM3S8BA-MUR is a 32-bit ARM Cortex-M3 microcontroller running at 64MHz. It offers 512KB flash and 64KB RAM in a 64-pin VFQFN package. With DMA, I2S, PWM, and brown-out detection, it targets IoT, industrial, and medical applications requiring high integration.

  • ARM Cortex-M3 – industry-standard ecosystem and tools.
  • Large memory (512KB flash/64KB RAM) – supports complex applications.
  • Low voltage operation (1.62V) – extends battery life.
  • Rich peripherals (DMA, I2S) – reduces external components.

IoT Gateways

DMA and I2S support audio and sensor data streaming.

Industrial HMI

512KB flash stores graphics assets for display interfaces.

Smart Meters

Low voltage operation (1.62V) enables energy harvesting.

Medical Monitoring

ARM core and 64KB RAM handle real-time signal processing.

Motor Control

PWM channels with dead-time insertion for inverter drives.

Portable Instruments

Brown-out reset and WDT ensure reliable field operation.

Q: What core is used?
A: ARM Cortex-M3.
Q: What is the max speed?
A: 64MHz.
Q: How much RAM?
A: 64KB.
Q: What package?
A: 64-VFQFN exposed pad.
Base Product Number : ATSAM3S8BA
32-bit MCU 512KB Flash 64KB RAM 64MHz ARM Cortex-M3 DMA I2S IoT Medical PWM VFQFN-64
Q: What core is used?
A: ARM Cortex-M3.
Q: What is the max speed?
A: 64MHz.
Q: How much RAM?
A: 64KB.
Q: What package?
A: 64-VFQFN exposed pad.