ATSAM3SD8CA-AU

Overview

The ATSAM3SD8CA-AU is a 32-bit microcontroller based on the ARM Cortex-M3 core, operating at a maximum frequency of 64 MHz. It features 512 kB of in-system programmable flash memory and 64 kB of SRAM. The device includes a USB Full-Speed controller, multiple communication interfaces including SPI, SSC, UART, and I2C, and an ADC with up to 16 channels offering 12-bit resolution. It operates within a supply voltage range of 1.62 V to 3.6 V and supports industrial temperatures from -40°C to +85°C.

Feature Summary

• Integrates a USB Full-Speed controller for direct connectivity applications.
• Provides extensive peripheral support including DMA, PWM, and watchdog timer.
• Features high-resolution analog-to-digital conversion capabilities.

Applications

• USB-enabled consumer electronics
• Industrial control systems requiring robust communication interfaces
• Data acquisition systems utilizing multi-channel ADC inputs

Procurement Notes

Verify the specific suffix 'AU' corresponds to the lead-free, RoHS-compliant variant in the QFP-100 package. Confirm assembly site details via official Product Change Notices (PCN) as manufacturing locations may change over time. Ensure compatibility with the required operating temperature range and voltage specifications for your target application environment before finalizing procurement.

Selection Notes

Select this component when a balance of moderate processing speed and integrated USB connectivity is required. Compare against the ATSAM3S8CA series if USB functionality is unnecessary, or consider the ATSAM4S series for higher performance needs. Verify that the 79 available I/O pins meet the interface requirements of the design.

Part Context

This part belongs to the SAM3S family of 32-bit ARM Cortex-M3 microcontrollers. It shares the same physical footprint and pinout with the ATSAM3S8CA-AU but distinguishes itself by including an integrated USB Full-Speed controller, whereas the S8 variant lacks this peripheral.

Replacement Considerations

ATSAM3S8CA-AU serves as a functional substitute if the USB controller is not utilized in the design. Both parts share identical pinouts and core specifications.

FAQ

Does the ATSAM3SD8CA-AU include an Ethernet MAC?

No, this specific model does not include an Ethernet MAC. It provides USB, SPI, SSC, UART, and I2C interfaces.

What is the maximum clock speed of the Cortex-M3 core in this device?

The maximum clock frequency supported by the ATSAM3SD8CA-AU is 64 MHz.