EmbeddedRelated.com
The 2026 Embedded Online Conference
ATSAMD11D14A-SSUT

MCHPATSAMD11D14A-SSUT

Microchip Technology
ARM® Cortex®-M0+ SAM D11D Microcontroller IC 32-Bit 48MHz 16KB (16K x 8) FLASH 20-SOIC
Active6,149 in stock

Overview

The ATSAMD11D14A-SSUT is a compact, 32-bit ARM Cortex-M0+ microcontroller featuring 16KB of Flash and 4KB of SRAM. It is specifically designed to provide high-performance USB 2.0 connectivity in a small 20-SOIC footprint, operating at frequencies up to 48MHz. The chip includes sophisticated power management features like SleepWalking, allowing peripherals to wake the CPU only when necessary.

Why Choose This Part

The SAM D11 stands out by offering a crystal-less USB implementation, reducing total Bill of Materials (BOM) cost and PCB complexity. Its SleepWalking technology and support for idle and standby modes make it highly efficient for low-power applications. The inclusion of a DMA controller and flexible SERCOM modules simplifies the implementation of I2C, SPI, and USART interfaces.

Applications

USB-to-Serial Bridges
Utilizing the full-speed USB 2.0 interface to create compact communication converters.
Handheld Peripheral Controllers
Managing input and sensor data for battery-powered devices using the 1.62V to 3.63V operating range.
USB Dongles and Keys
Providing secure or functional USB interfaces in a space-constrained SOIC package.
Smart Sensors
Integrating 12-bit ADC and 10-bit DAC capabilities for local signal processing and control.

Key Specifications

Speed 48MHz
RAM Size 4K x 8
Core Size 32-Bit
Peripherals Brown-out Detect/Reset, DMA, POR, WDT
Connectivity I2C, LINbus, SPI, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 18
Core Processor ARM Cortex-M0+
Package / Case 20-SOIC (0.295", 7.50mm Width)
Data Converters A/D 8x12b; D/A 1x10b
Oscillator Type Internal
Program Memory Size 16KB (16K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 20-SOIC
Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.63V

Getting Started

Engineers can begin development using the SAM D11 Xplained Pro evaluation kit. The part is fully supported by the Microchip Studio (formerly Atmel Studio) and MPLAB X IDEs, alongside the Atmel Software Framework (ASF). For hardware debugging, a standard SWD interface is available through tools like the Atmel-ICE.

ATSAMD11D Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number I/O Pins Package ADC/DAC Stock
ATSAMD11D14A-SSUT (this part) 18 SOIC-20 A/D 8x12b; D/A 1x10b 6,149
ATSAMD11D14A-MUT 22 VFQFN-24 A/D 10x12b; D/A 1x.. 10,931

Also Consider

ATSAMD11D14A-MUT MCHPMicrochip Technology - Provides the same electrical performance in a much smaller 24-VQFN package for ultra-compact designs.
The 2026 Embedded Online Conference