ATSAM4SD16CA-ANR

Overview

The ATSAM4SD16CA-ANR is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at up to 120 MHz. It features 1 MB of embedded Flash memory organized in dual banks with optional cache, and 160 KB of SRAM. The device includes an integrated 1.8V regulator, power-on-reset, brown-out detector, and watchdog timer. Connectivity options include USB 2.0 Full-Speed Device, High-Speed SDIO/SD/MMC, three SPIs, two I2Cs, two USARTs, and two UARTs. Analog peripherals consist of sixteen 12-bit ADC channels, two 12-bit DACs, an analog comparator, and a temperature sensor.

Feature Summary

• High-performance ARM Cortex-M4 processor with 2 KB cache and multi-layer AHB matrix for efficient data handling.
• Integrated hardware security features including code protection, secure chip erase, and CRC memory integrity checks.
• Native support for Microchip QTouch capacitive touch technology for intuitive user interfaces.
• Low-power operation with backup mode consumption as low as 1 µA when RTC is active.

Applications

• Industrial control systems
• Metering devices
• Medical equipment
• Consumer goods and toys
• Test and measurement instruments

Procurement Notes

Verify the specific ordering suffix 'ANR' against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with existing board layouts due to pin-to-pin requirements. Confirm RoHS compliance status for the specific revision. Check for any recent product change notices affecting assembly sites or marking changes before finalizing procurement.

Selection Notes

Select this component for applications requiring high performance with moderate memory density. The SAM4SD variant offers dual-bank Flash suitable for complex bootloaders. Consider the 105°C temperature range indicated by the 'N' suffix if operating in harsh environments. Evaluate peripheral needs such as USB and HS SDIO availability compared to other series members.

Part Context

Part of the SAM4S family, offering scalability from 128 KB to 2 MB Flash. Pin-compatible with SAM3S, SAM3N, and SAM7S series for migration. Designed for cost-sensitive applications needing Cortex-M4 capabilities without the complexity of dual-core architectures found in the SAM4C series.

Replacement Considerations

ATSAM4SD16CA-AU (LQFP package)

FAQ

Does the ATSAM4SD16CA-ANR support dual-bank Flash?

Yes, the SAM4SD series devices feature dual-bank Flash memory organization.

What is the maximum operating frequency?

The device operates at a maximum frequency of 120 MHz.