ATSAML11E16A-AFKPH

Overview

The ATSAML11E16A-AFKPH 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 and supports a supply voltage range of 1.62V to 3.63V. It includes 10-channel 12-bit ADCs and one 10-bit DAC. The component integrates hardware security features based on Arm TrustZone for Armv8-M architecture. It offers multiple communication interfaces including I2C, SPI, UART/USART, and LINbus. The operating temperature range spans from -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.
• Supports low-power operation with ultra-low power peripherals designed for battery-constrained applications.
• Includes comprehensive analog peripherals such as high-resolution ADCs, operational amplifiers, and comparators.
• Features flexible serial communication controllers (SERCOM) supporting standard protocols like SPI, I2C, and USART.

Applications

• Secure IoT sensor nodes requiring data integrity and authentication
• Battery-powered wearable devices with strict power management needs
• Industrial control systems utilizing LINbus communication
• Smart energy metering endpoints

Procurement Notes

Verify the specific suffix AFKPH against the official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint design guidelines. Confirm RoHS compliance status for your region's regulatory requirements. Check for any recent lifecycle notices or obsolescence warnings directly from Microchip Technology before finalizing procurement plans.

Selection Notes

Select this component when both high-level security isolation via TrustZone and low-power efficiency are required. It is suitable for designs needing moderate program storage and robust analog input capabilities. Consider the VQFN package constraints if space is limited. Evaluate peripheral availability against application interface requirements to ensure sufficient SERCOM channels and GPIOs are present.

Part Context

This part belongs to the SAM L11 family of microcontrollers, which are optimized for low-power and secure embedded applications. The family shares common architectural features but varies in memory size and package options. The E16 variant specifically denotes the 64KB Flash configuration within this series.

Replacement Considerations

Consult Microchip documentation for direct pin-to-pin replacements within the SAM L11 series. Verify memory capacity and peripheral sets match application needs when considering alternatives. Cross-reference package dimensions and thermal characteristics to ensure mechanical compatibility.