ATSAM4SD32CA-CU

Overview

The ATSAM4SD32CA-CU is a 32-bit microcontroller from the Microchip SAM4S series, built on the ARM Cortex-M4 RISC processor. It operates at a maximum clock frequency of 120 MHz and includes an integrated DSP instruction set. The device features up to 2048 Kbytes of embedded Flash memory with optional dual bank implementation and cache, alongside up to 160 Kbytes of SRAM. Key peripherals include a Full Speed USB Device port, High Speed MCI for SDIO/SD/MMC, an External Bus Interface (EBI) supporting various memory types, multiple communication interfaces such as USARTs, UARTs, TWIs, SPIs, I2S, and PWM timers.

Feature Summary

• High-performance 32-bit ARM Cortex-M4 core with DSP capabilities and cache memory
• Extensive peripheral set including USB, MCI, EBI, and multiple serial communication interfaces
• Integrated power management features such as voltage regulator and brown-out detector

Applications

• Industrial control systems requiring high processing speed
• Consumer electronics utilizing USB connectivity
• Data logging applications using SD/MMC storage via MCI
• Embedded systems needing external memory expansion via EBI

Procurement Notes

Verify the specific suffix 'CU' against official Microchip documentation to confirm package type and temperature range specifications. Ensure compatibility with existing design constraints regarding pinout and electrical characteristics before procurement. Cross-reference with current datasheets to validate any potential revisions or obsolescence notices associated with this part number.

Selection Notes

Select this component when a balance of high performance and rich peripheral integration is required within the SAM4S family. It is suitable for designs needing robust memory options and diverse interface capabilities without moving to higher-end multi-core architectures. Consider the 120 MHz operating speed and available SRAM for complex algorithm execution.

Part Context

This part belongs to the SAM4S series, which offers scalable performance based on the ARM Cortex-M4 core. It is designed to provide pin-to-pin compatibility with previous generations like SAM3N and SAM3S in certain packages, facilitating migration paths for legacy designs while offering enhanced memory density and peripheral sets.

Replacement Considerations

Check for direct pin-compatible alternatives within the SAM4S family, such as variants with different memory sizes. Verify if the ATSAM4SD32CA-AU serves as a functional equivalent with a different package option.