ATSAM4SD32BB-MNR

Overview

The ATSAM4SD32BB-MNR is a 32-bit microcontroller from the SAM4S series, manufactured by Microchip Technology. It integrates an ARM Cortex-M4 core operating at up to 120 MHz with a 2 Kbyte cache and DSP instructions. The device features 32 Mbytes of embedded Flash memory and 160 Kbytes of SRAM. It includes a Static Memory Controller for external memory support, multiple communication interfaces including USB 2.0, and operates within a voltage range of 1.62 V to 3.6 V in a 64-QFN package.

Feature Summary

• High-performance ARM Cortex-M4 processor with integrated DSP instruction set and 2 Kbyte cache for efficient code execution.
• Large memory capacity with 32 Mbytes of Flash and 160 Kbytes of SRAM, supporting complex application requirements.
• Embedded Static Memory Controller enabling direct interface with external SRAM, PSRAM, NOR, and NAND Flash memories.
• Comprehensive peripheral set including USB 2.0 Device, multiple USARTs, SPI, I2C, and DMA channels for versatile connectivity.

Applications

• Industrial control systems requiring robust processing and extensive memory
• Consumer electronics utilizing USB connectivity and high-speed data transfer
• Medical devices needing precise timing and reliable operation
• Automotive infotainment and instrumentation modules

Procurement Notes

Verify the specific suffix 'MNR' against the official Microchip datasheet to confirm the tape-and-reel packaging configuration. Ensure the component meets RoHS3 compliance standards required for your assembly process. Cross-reference the manufacturing date code and lot number with the latest Product Change Notification (PCN) documents to verify assembly site and material consistency before procurement.

Selection Notes

Select this model when applications demand significant on-chip memory resources alongside external memory expansion capabilities. The inclusion of the Static Memory Controller distinguishes it from smaller SAM4S variants lacking SMC support. Consider the 120 MHz clock speed and DSP extensions if signal processing or complex algorithm execution is required within the design constraints.

Part Context

This component belongs to the SAM4S family of 32-bit microcontrollers based on the ARM Cortex-M4 architecture. The family is designed for high-performance embedded applications, offering pin-to-pin compatibility with previous generations like SAM3S and SAM7S in certain packages. The SAM4S series emphasizes low power consumption while delivering substantial processing power through its optimized core and peripheral integration.

Replacement Considerations

Consult the Microchip SAM4S Errata document for known silicon revisions. Verify pinout compatibility if substituting with other SAM4S variants such as ATSAM4S8BA or ATSAM4S16CA, noting differences in Flash size and peripheral availability. Ensure any replacement part supports the Static Memory Controller if external memory interfacing is critical to the design.