ATSAML11D15A-MU

Overview

The ATSAML11D15A-MU is a 32-bit microcontroller from the SAM L11 family, featuring an ARM Cortex-M23 core operating at up to 32 MHz. It integrates 32 KB of flash memory, 8 KB of SRAM, and 2 KB of EEPROM. The device includes five 12-bit ADC channels and one 10-bit DAC. It supports I2C, LINbus, SPI, and UART/USART interfaces. Operating voltage ranges from 1.62 V to 3.63 V, with a commercial temperature range of -40°C to +85°C. It is housed in a 24-VQFN package.

Feature Summary

• Integrates hardware security features including TrustZone and cryptographic accelerators for secure boot and data protection.
• Includes a Peripheral Touch Controller (PTC) supporting capacitive touch sensing applications without external components.
• Features low-power modes optimized for battery-operated devices, including active and sleep modes with fast wake-up times.

Applications

• Secure consumer electronics requiring code protection
• Battery-powered IoT sensors with touch interface needs
• Industrial control systems using LINbus communication
• Smart home devices with low power consumption requirements

Procurement Notes

Verify the specific suffix 'MU' indicates tube packaging when ordering, as other suffixes like 'MUT' denote tape and reel. Confirm the temperature grade corresponds to commercial operations (-40°C to +85°C). Ensure compatibility with existing design tools and check for any recent Product Change Notifications regarding assembly sites or materials before finalizing procurement plans.

Selection Notes

Select this component when both security features and touch sensing are required in a compact footprint. Compare against ATSAML11D14A if only 16 KB flash is sufficient. Consider ATSAMD11 series if USB connectivity is needed instead of LINbus. Verify that the 17 available I/O pins meet the system interface requirements.

Part Context

This part belongs to the Microchip SAM L11 family of ultra-low-power microcontrollers based on the ARM Cortex-M23 architecture. The family emphasizes security and energy efficiency for embedded applications. The ATSAML11D15A-MU represents a mid-range configuration within the D-series, balancing memory capacity with peripheral availability for general-purpose secure control tasks.

Replacement Considerations

ATSAML11D15A-MUT serves as a functional equivalent with identical electrical specifications but differs in packaging format (tape and reel versus tube). No direct cross-manufacturer replacements are verified in the provided documentation.