MCHPATSAMD11D14A-SSUT
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
Key Specifications
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 |



