ATSAML11E15A-AFT

Overview

The ATSAML11E15A-AFT is a 32-bit microcontroller based on the ARM Cortex-M23 core, operating at a maximum frequency of 32MHz. It features 32KB of Flash memory and 8KB of SRAM within a 32-TQFP (7x7) package. The device supports a supply voltage range of 1.62V to 3.63V and includes an internal oscillator. Connectivity options include I2C, LINbus, SPI, and UART/USART interfaces. It provides 25 general-purpose I/Os and integrates peripherals such as DMA, PWM, WDT, and power-on reset.

Feature Summary

• Integrates Arm TrustZone for hardware-based security isolation
• Includes enhanced capacitive touch sensing capabilities
• Features advanced analog peripherals with high-resolution ADCs

Applications

• Secure consumer electronics requiring data protection
• Battery-powered IoT sensor nodes
• Industrial control systems with touch interface requirements

Procurement Notes

Verify the specific suffix 'AFT' corresponds to the tape and reel packaging format when ordering. Confirm that the required temperature grade and package dimensions align with the design constraints. Ensure compatibility with existing development tools for the SAM L11 family before finalizing procurement decisions.

Selection Notes

Select this model for applications necessitating chip-level security via TrustZone combined with low-power operation. The 32-TQFP package offers a balance of pin count and footprint. Consider the integrated touch controller if user interaction is required without external components.

Part Context

This component belongs to the Microchip SAM L11 family, which targets ultra-low power applications with enhanced security features. The series is designed for devices requiring secure boot and code integrity verification alongside efficient energy management in compact form factors.

Replacement Considerations

ATSAML11E15A-MFT: Same electrical specifications but in VQFN-32 package. ATSAML10E15A-AU: Similar performance but lacks TrustZone security features.