EmbeddedRelated.com
    Parts    SAM Microcontrollers Family    SAML11E    ATSAML11E16A-AU
ATSAML11E16A-AU

MCHPATSAML11E16A-AU

Microchip Technology
ARM® Cortex®-M23 SAM L11 Microcontroller IC 32-Bit 32MHz 64KB (64K x 8) FLASH 32-TQFP (7x7)
Active1,406 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The ATSAML11E16A-AU is a 32-bit ARM Cortex-M23 microcontroller designed for high-security IoT applications and power-constrained environments. Operating at 32MHz, it features integrated Arm TrustZone technology for hardware-level isolation and advanced capacitive touch sensing through an enhanced Peripheral Touch Controller. The device includes 64KB of Flash and 16KB of RAM, making it a robust solution for secure, small-footprint nodes.

Why Choose This Part

This MCU offers a hardware-based Root of Trust and memory protection while maintaining ultra-low power consumption. The inclusion of 2KB of dedicated EEPROM allows for efficient non-volatile parameter storage without exhausting primary Flash cycles. Its ARM Cortex-M23 core provides a modern, efficient architecture specifically optimized for security and energy efficiency.

Applications

Secure IoT Endpoints
Utilizing TrustZone for hardware-isolated secure boot, key storage, and encrypted communication in connected devices.
Low-Power Human Interface
Implementing capacitive touch buttons or sliders in battery-operated consumer products via the integrated PTC.
Industrial Sensor Nodes
Processing analog data with low power consumption while maintaining security protocols in automated environments.

Key Specifications

Speed 32MHz
RAM Size 16K x 8
Core Size 32-Bit
EEPROM Size 2K x 8
Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity I2C, LINbus, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 25
Core Processor ARM Cortex-M23
Package / Case 32-TQFP
Data Converters A/D 10x12b; D/A 1x10b
Oscillator Type Internal
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 32-TQFP (7x7)
Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.63V

Getting Started

Start development using the Microchip SAM L11 Xplained Pro evaluation kit (ATSAML11-XPRO) and the Microchip Studio (formerly Atmel Studio) or MPLAB X IDE. Utilize the Atmel START web-based configuration tool to initialize TrustZone settings and peripheral drivers quickly. Ensure you have a SWD debugger such as an Atmel-ICE or Power Debugger for real-time code analysis.

Also Consider

STM32L051K8T6 STMicroelectronics - A common alternative for low-power 32-bit applications based on the Cortex-M0+ core with similar Flash and RAM density.
ATSAMD21E18A-AU MCHPMicrochip Technology - Select this if your application requires more Flash (up to 256KB) and can trade off the advanced security features for higher memory capacity.