ATSAM4SD16BA-MUR

Overview

The ATSAM4SD16BA-MUR is a 32-bit microcontroller from the Microchip SAM4S series, featuring an ARM Cortex-M4 core with DSP instructions and a 2KB cache. It operates at speeds up to 120 MHz and includes 1MB of embedded Flash memory and 160KB of SRAM. The device integrates a USB 2.0 full-speed device interface, multiple communication peripherals including USARTs, SPI, and I2C, and supports external memory via an 8-bit Static Memory Controller. It functions within a supply voltage range of 1.62V to 3.6V and is available in a 64-pin LQFP package.

Feature Summary

• ARM Cortex-M4 processor core with integrated DSP instruction set and 2KB data cache for enhanced computational performance.
• Integrated USB 2.0 full-speed device controller with on-chip transceiver and substantial FIFO buffer.
• Comprehensive peripheral suite including multiple USARTs with IrDA support, SPI, I2C, and PWM units.
• Support for external memory expansion through an 8-bit Static Memory Controller compatible with various memory types.

Applications

• Industrial control systems requiring robust processing and communication interfaces
• USB-enabled consumer electronics and peripheral devices
• Medical equipment utilizing high-precision analog-to-digital conversion capabilities
• Smart metering applications demanding low-power operation modes

Procurement Notes

Verify the specific suffix MUR indicates tape and reel packaging when sourcing components. Confirm that the device meets required environmental specifications for the intended operating temperature range. Ensure compatibility with existing PCB footprints for the 64-pin LQFP package during procurement planning.

Selection Notes

Select this component for designs necessitating a balance of processing power and extensive connectivity options. The inclusion of both Flash and significant SRAM supports complex firmware execution. Consider the availability of development tools and documentation provided by the manufacturer for efficient integration into the target system architecture.

Part Context

This microcontroller belongs to the SAM4S family, which is pin-compatible with earlier SAM3S and SAM7S products. This design choice facilitates migration from legacy systems while providing access to modern ARM Cortex-M4 features. The series emphasizes flexibility through various memory configurations and package options to suit diverse application requirements.

Replacement Considerations

Consult official substitution lists for equivalent parts within the SAM4S family or other Microchip MCU lines. Verify functional compatibility regarding pin assignments and peripheral availability before implementing any alternative components in the design.

FAQ

Does the ATSAM4SD16BA-MUR include hardware acceleration for digital signal processing?

Yes, the ARM Cortex-M4 core includes a dedicated DSP instruction set to accelerate mathematical operations commonly used in signal processing applications.

What type of oscillator sources are supported by this microcontroller?

The device supports quartz or ceramic resonator oscillators ranging from 3 to 20 MHz, along with an internal RC oscillator for startup and low-power modes.