ATSAML11E16A-MFTKPH

Overview

The ATSAML11E16A-MFTKPH is a 32-bit microcontroller from the Microchip SAM L11 family, built on the ARM Cortex-M23 core. It features 64KB of Flash memory and 16KB of SRAM, operating at a maximum frequency of 32MHz. The device supports a supply voltage range of 1.62V to 3.63V and includes integrated cryptographic accelerators with Arm TrustZone security. Connectivity options include I2C, LINbus, SPI, and UART/USART interfaces via SERCOM peripherals. It utilizes a 32-pin WLCSP package.

Feature Summary

• Integrates Arm TrustZone for Armv8-M architecture to provide hardware-based isolation between secure and non-secure execution environments.
• Includes dedicated cryptographic accelerators supporting AES, SHA, and RSA operations for secure data processing.
• Features low-power design capabilities with multiple sleep modes and fast wake-up times suitable for battery-operated devices.
• Provides flexible peripheral connectivity through Serial Communication (SERCOM) modules configurable as standard communication interfaces.

Applications

• Secure IoT sensor nodes requiring encrypted data transmission
• Battery-powered wearable electronics with strict power constraints
• Smart home devices needing secure boot and firmware protection
• Industrial control systems utilizing LINbus communication

Procurement Notes

Verify the specific suffix KPH indicates the Wafer Level Chip Scale Package (WLCSP) configuration, distinct from the VQFN variant. Confirm RoHS compliance status and moisture sensitivity level prior to ordering. Ensure design tools support the WLCSP footprint. Check for any recent Product Change Notifications regarding assembly or material changes.

Selection Notes

Select this component when both high-level security features and ultra-low power consumption are critical requirements. The WLCSP package offers a compact form factor ideal for space-constrained designs compared to larger QFN packages. Ensure the application can accommodate the specific pinout and thermal characteristics of the chip-scale package.

Part Context

This part belongs to the SAM L11 series, which targets applications demanding robust security alongside minimal energy usage. The series integrates Arm TrustZone technology directly into the Cortex-M23 core, differentiating it from standard MCU families that rely solely on software security measures.

Replacement Considerations

ATSAML11E16A-MUT serves as a pin-compatible alternative in a VQFN package. Verify that the change in package type does not impact the PCB layout or mechanical constraints of the final product.