ATSAM3SD8BA-AU

Overview

The ATSAM3SD8BA-AU is a 32-bit microcontroller from the Microchip SAM3S series, featuring an ARM Cortex-M3 core operating at up to 64 MHz. It integrates 512 KB of flash memory and 64 KB of SRAM within a 100-pin LQFP package. The device supports a supply voltage range of 1.62 V to 3.6 V and includes a USB OTG interface, multiple communication peripherals, and analog converters.

Feature Summary

• Integrates a high-performance ARM Cortex-M3 processor with hardware multiply and divide capabilities for efficient code execution.
• Includes a dedicated USB On-The-Go (OTG) controller supporting full-speed and low-speed data transfers.
• Provides flexible connectivity through multiple SPI, I2C, USART, and SSC interfaces alongside DMA channels.
• Features integrated analog conversion capabilities including multiple ADC channels and DAC outputs.

Applications

• USB peripheral devices requiring on-the-go connectivity
• Industrial control systems utilizing serial communication protocols
• Data acquisition systems employing analog-to-digital conversion

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 100-LQFP configuration. Confirm that the selected variant meets all environmental and electrical specifications required for the target application environment.

Selection Notes

Select this component when a balance of processing power and memory capacity is required for USB-enabled applications. Consider the 100-pin form factor for increased I/O availability compared to smaller packages. Evaluate the internal oscillator accuracy if precise timing without external crystals is necessary for the system design.

Part Context

This part belongs to the SAM3S family, designed for cost-sensitive applications requiring moderate performance. It shares architectural similarities with other SAM3 variants but offers specific memory and pin configurations tailored for general-purpose embedded control tasks.

Replacement Considerations

ATSAM3SD8CA-AU