ATSAMD11D14A-UUT

Overview

The ATSAMD11D14A-UUT 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 programmable Flash and 4KB of SRAM. The device operates within a voltage range of 1.62V to 3.63V and supports a maximum CPU frequency of 48MHz. It utilizes a 20-ball WLCSP package with a -40°C to 85°C operating temperature range.

Feature Summary

• Supports full-speed USB 2.0 device interface without requiring an external crystal
• Integrates a Peripheral Touch Controller for capacitive touch sensing applications
• Features a 6-channel Direct Memory Access controller for efficient data transfer
• Includes multiple Serial Communication Modules configurable as USART, SPI, or I2C

Applications

• Capacitive touch user interfaces such as buttons, sliders, and wheels
• Low-power embedded systems utilizing sleep modes and SleepWalking features
• USB-enabled peripheral devices requiring crystal-less operation
• Simple control applications using Timer/Counters and Event System

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing design constraints regarding the WLCSP form factor and thermal requirements before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring a compact footprint with integrated USB capabilities. Consider the limited GPIO count and memory size relative to application complexity. Evaluate power consumption profiles across different clock domains and sleep modes to ensure efficiency meets system requirements.

Part Context

This part belongs to the SAM D11 family of low-power microcontrollers based on the ARM Cortex-M0+ core. The series offers pin-compatible migration paths between various packages including QFN, SOIC, and WLCSP. It shares identical peripheral modules and address maps within the family, facilitating straightforward upgrades to larger devices.

Replacement Considerations

ATSAMD11D14A-SSUT (SOIC package)

FAQ

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

No, the device supports a full-speed USB 2.0 device interface that can run directly from its internal RC oscillator without an external crystal.

What is the maximum operating frequency of the Cortex-M0+ core in this device?

The ARM Cortex-M0+ processor in the ATSAMD11D14A-UUT operates at a maximum frequency of 48MHz.

How many channels does the ADC support on this specific package variant?

The SAM D11D variant, which includes the UUT package, supports up to 10 channels for the 12-bit Analog-to-Digital Converter.