ATSAMD11D14A-MNT

Overview

The ATSAMD11D14A-MNT is a 32-bit microcontroller from the SAM D11 series, utilizing an ARM Cortex-M0+ processor. It features 16KB of in-system self-programmable Flash and 4KB of SRAM. The device operates at a maximum frequency of 48MHz within a 24-pin QFN package. Operating voltage ranges from 1.62V to 3.63V, with an industrial temperature range of -40°C to 105°C. Key peripherals include a full-speed USB 2.0 interface, three SERCOM modules, a 12-bit ADC, and a 10-bit DAC.

Feature Summary

• Supports crystal-less USB 2.0 device operation using internal oscillators
• Includes a Peripheral Touch Controller for capacitive sensing applications
• Features a six-channel Event System for inter-peripheral signaling without CPU intervention
• Provides SleepWalking capabilities to wake peripherals from standby mode

Applications

• Low-power wearable devices requiring small form factors
• USB-enabled consumer electronics and human interface devices
• Industrial control systems utilizing LIN bus communication
• Battery-operated sensors with capacitive touch interfaces

Procurement Notes

Verify the ordering suffix 'N' confirms the -40°C to 105°C temperature grade and 'M' indicates the 24-QFN package. Confirm the 'T' suffix corresponds to tape and reel packaging if required by automated assembly lines. Cross-reference the specific revision level against the latest datasheet to ensure pinout and peripheral availability remain consistent with design requirements.

Selection Notes

Select this component when migrating from 8-bit architectures due to its hex-compatible code base and identical linear address map within the SAM D family. Choose this variant over the MUT version if the application requires extended industrial temperature ratings up to 105°C. Ensure the design accommodates the 24-pin QFN footprint and utilizes the SWD interface for programming and debugging needs.

Part Context

This part belongs to the SAM D11D product mapping, specifically designed for 24-pin configurations. It shares identical peripheral modules and migration paths with other SAM D11 devices, allowing for easy scaling to larger memory variants. The architecture supports low-power modes while maintaining high CPU performance through independent clock domain configuration.

Replacement Considerations

ATSAMD11D14A-MUT serves as a direct functional substitute with identical specifications, differing only in the commercial temperature rating (-40°C to 85°C). Verify that the thermal management strategy remains adequate if substituting into a design originally optimized for the higher temperature tolerance of the MNT variant.