ATSAMD11D14A-MUT

Overview

The ATSAMD11D14A-MUT is a 32-bit microcontroller from the SAM D11 series, featuring an ARM Cortex-M0+ processor running at up to 48MHz. It includes 16KB of in-system self-programmable Flash and 4KB of SRAM. The device operates within a voltage range of 1.62V to 3.63V and supports an industrial temperature range of -40°C to 85°C. Key peripherals include a full-speed USB 2.0 interface, three SERCOM modules, a 12-bit ADC with up to 10 channels, a 10-bit DAC, and a Peripheral Touch Controller supporting up to 72 touch channels.

Feature Summary

• Integrates a full-speed crystal-less USB 2.0 device interface capable of operating from internal RC oscillators.
• Includes a Peripheral Touch Controller for capacitive touch sensing with support for buttons, sliders, wheels, and proximity detection.
• Features a six-channel Direct Memory Access controller and a six-channel Event System for efficient inter-peripheral signaling without CPU intervention.
• Provides flexible serial communication via three Serial Communication Modules configurable as USART, UART, SPI, I2C, SMBus, PMBus, or LIN slave.

Applications

• Low-power consumer electronics requiring simple migration paths from 8-bit architectures
• USB-enabled devices such as HID peripherals and data loggers
• Applications utilizing capacitive touch user interfaces like sliders and buttons
• Battery-operated systems leveraging idle and standby sleep modes

Procurement Notes

Verify the ordering suffix 'M' corresponds to the QFN package and 'U' indicates the industrial temperature grade (-40°C to 85°C). Confirm that the 'T' suffix denotes tape and reel packaging. Ensure compatibility with the SAM D11 family pinout if migrating from other variants. Cross-reference the specific datasheet revision for any errata or design changes prior to finalizing procurement specifications.

Selection Notes

Select this component when a low-cost, low-pin-count MCU with integrated USB and touch capabilities is required. It is suitable for designs needing hex-compatible code migration within the SAM D family. Consider the 24-pin QFN package constraints regarding available GPIOs and analog channels. Evaluate power consumption requirements against the available sleep modes and clock options for optimal efficiency.

Part Context

This part belongs to the Atmel SMART SAM D11 series of low-power microcontrollers based on the ARM Cortex-M0+ core. The series offers identical peripheral modules and linear address maps across different pin counts, facilitating easy migration between devices. It is designed for applications requiring simple integration of USB connectivity and capacitive touch controls in compact form factors.

Replacement Considerations

ATSAMD11D14A-MNT (Industrial temperature, Tape & Reel)

FAQ

Does the ATSAMD11D14A-MUT require an external crystal for USB operation?

No, the device features a full-speed crystal-less USB 2.0 device interface that can run from its internal RC oscillator.

What is the maximum resolution supported by the ADC with oversampling?

The 12-bit ADC supports optional hardware oversampling and decimation to achieve resolutions of 13-, 14-, 15-, or 16-bit.

How many programmable I/O pins are available on the 24-pin QFN package?

The SAM D11D variant in the 24-pin QFN package provides up to 22 programmable I/O pins.