ATSAM4SD32CA-CFU

Overview

The ATSAM4SD32CA-CFU is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at up to 120 MHz. It features 2 Mbytes of embedded Flash memory with optional dual bank and cache support, alongside 160 Kbytes of SRAM. The device includes a 16 Kbytes ROM for boot loader routines and an 8-bit Static Memory Controller supporting SRAM, PSRAM, NOR, and NAND Flash. Connectivity options include USB 2.0 Full Speed Device, High Speed MCI, multiple USARTs, UARTs, TWIs, SPIs, I2S, PWM timers, general-purpose timers, RTC, 12-bit ADC, 12-bit DAC, and analog comparator.

Feature Summary

• Integrates ARM Cortex-M4 processor with DSP instruction set and Memory Protection Unit
• Supports external memory interfaces via Static Memory Controller for various storage types
• Includes comprehensive peripheral set with USB, MCI, and multiple communication interfaces
• Features low power modes including sleep and backup with ultra-low-power RTC

Applications

• Industrial control systems requiring robust memory and processing capabilities
• Consumer electronics utilizing USB connectivity and multimedia interfaces
• Smart energy applications such as smart meters and inverters
• Audio equipment leveraging DSP instructions and high-speed data transfer

Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or direct channels. Confirm package integrity and pin alignment against the 100-VFBGA specification. Ensure environmental compliance documentation matches project requirements. Validate firmware compatibility with existing software frameworks before integration into production lines.

Selection Notes

Select this model when high-performance computing with significant onboard memory is required. The inclusion of DSP instructions makes it suitable for signal processing tasks. Consider the extensive peripheral set for complex interface requirements. Evaluate power consumption profiles against system constraints, particularly in low-power modes.

Part Context

Part of the SAM4S series within Microchip's portfolio, designed for scalable performance and memory density. Shares pin compatibility with SAM3N, SAM3S, and legacy SAM7S products for easier migration. Targets applications needing a balance of processing power, memory capacity, and peripheral richness in a compact form factor.

Replacement Considerations

Consult official Microchip documentation for verified cross-reference part numbers. Ensure functional equivalence in core architecture, memory size, and peripheral availability. Verify pin-to-pin compatibility if physical board space is constrained. Review datasheet updates for any changes in electrical characteristics or recommended operating conditions.