ATSAML11E16A-AFTKPH

Overview

The ATSAML11E16A-AFTKPH is a 32-bit microcontroller from the Microchip SAM L11 series, built on the ARM Cortex-M23 core. It features 64KB of Flash memory and 16KB of SRAM. The device operates at a maximum clock frequency of 32MHz with a supply voltage range of 1.62V to 3.63V. It includes 25 I/O pins and supports interfaces such as I2C, LINbus, SPI, and UART/USART. The component is housed in a 32-WLCSP package and functions within an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrates Arm TrustZone for Armv8-M technology to provide hardware-based security isolation between secure and non-secure execution environments.
• Includes dedicated cryptographic accelerators to support secure boot processes and data encryption operations efficiently.
• Features low-power architecture optimized for battery-operated applications with multiple sleep modes to minimize energy consumption.

Applications

• Secure Internet of Things (IoT) sensor nodes requiring trusted execution environments
• Battery-powered wearable devices needing ultra-low power management
• Industrial control systems with secure communication protocols
• Smart home security endpoints utilizing hardware-based authentication

Procurement Notes

Verify the specific suffix AFTKPH against official Microchip documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints for the WLCSP-32 configuration. Cross-reference the part number with current datasheets to validate manufacturing status and regional availability constraints before finalizing procurement plans.

Selection Notes

Select this component when hardware-enforced security via TrustZone is mandatory alongside low-power operation. Compare memory sizes and pin counts against alternative SAM L11 variants to ensure sufficient resources for the target application. Verify that the WLCSP package aligns with assembly capabilities and thermal requirements of the design.

Part Context

This microcontroller belongs to the SAM L11 family, which focuses on combining high-level security features with extreme power efficiency. It targets applications where data integrity and long battery life are critical. The series utilizes the Cortex-M23 core to deliver deterministic performance while maintaining a small physical footprint suitable for compact embedded designs.

Replacement Considerations

Consult Microchip's official cross-reference tools for verified substitutes. Consider other SAM L11 variants with matching memory and interface configurations if pin compatibility is required. Validate any alternative against the same security and power specifications.