ATSAM4SD16CB-CNR

Overview

The ATSAM4SD16CB-CNR is a 32-bit microcontroller from the SAM4S series, manufactured by Microchip Technology. It features an ARM Cortex-M4 core operating at up to 120 MHz and includes 1MB of embedded Flash memory with optional dual bank and cache support. The device provides 160KB of SRAM and integrates a Static Memory Controller for external memory expansion. Connectivity options include USB 2.0, I2C, SPI, USART, SSC, IrDA, and EBI/EMI interfaces. It operates within a voltage range of 1.62V to 3.6V and supports industrial temperatures from -40°C to 105°C in a 100-TFBGA package.

Feature Summary

• Integrates an ARM Cortex-M4 processor with DSP instructions and a Memory Protection Unit for secure execution.
• Includes a Static Memory Controller supporting SRAM, PSRAM, NOR, and NAND Flash for external memory expansion.
• Features a high-precision internal RC oscillator with factory trimming and an RTC with calendar modes.
• Supports multiple low-power modes including Sleep and Backup, achieving ultra-low current consumption.

Applications

• Industrial control systems requiring robust peripheral interfaces
• Consumer electronics utilizing USB connectivity
• Smart metering applications demanding secure code execution
• Medical devices needing precise timing and low power operation

Procurement Notes

Verify the suffix CNR indicates tape-and-reel packaging distinct from the tray-packaged CN variant. Confirm the specific assembly site and date code against the latest Product Change Notification (PCN) documents provided by Microchip. Ensure compatibility with existing PCB footprints for the 100-TFBGA package. Check RoHS compliance status as per current environmental declarations.

Selection Notes

Select this component when 1MB of Flash and 160KB of RAM are required alongside extensive peripheral connectivity. The TFBGA package suits high-density board designs. Consider the ATSAM4SD16CA-AU if LQFP packaging or commercial temperature ranges are preferred. Evaluate the ATSAM4S16CB-CN if reel packaging is not mandatory for the production line.

Part Context

This part belongs to the SAM4S family of 32-bit flash microcontrollers based on the ARM Cortex-M4 core. The family offers a balance of processing performance and power efficiency. The SD variant specifically denotes enhanced memory configurations compared to standard S models. It is pin-compatible with SAM3N and SAM3S products in 100-pin versions.

Replacement Considerations

ATSAM4SD16CB-CN is the tray-packaged equivalent. ATSAM4SD16CA-AU offers the same silicon in a 100-LQFP package. ATSAM4S16CB-CN is a lower-memory variant within the same package style.