ATSAML10D15A-YFT
ATSAML10D15A-YFT - 32KB Flash ARM Cortex-M23 MCU 32MHz
The Microchip Technology ATSAML10D15A-YFT is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller from the SAM L10 family, integrating 32KB of Flash, 8KB of SRAM, and running at up to 32 MHz. Housed in a 24-pin SSOP package, it is engineered for always-on, energy-harvesting, and battery-powered applications, with active mode current under 25 uA/MHz and sleep mode current below 100 nA.
An ARM Cortex-M23 MCU is a 32-bit microcontroller core built on the ARMv8-M Baseline architecture that combines Thumb-2 instruction efficiency with optional TrustZone-M security extensions. Microcontrollers (MCUs) sit at the heart of embedded systems, providing CPU, memory, and peripherals on a single die; the SAM L10 family specifically targets low-power IoT nodes where every microamp of quiescent current translates directly into battery life.
Key features include an enhanced peripheral touch controller (PTC) for capacitive sensing, a 12-bit ADC, a 10-bit DAC, an operational amplifier, analog comparators (AC), multiple SERCOM serial interfaces, ISO7816 smart card interface, and an event system for hardware-triggered inter-peripheral signaling without CPU intervention. The integrated Peripheral Touch Controller supports capacitive buttons, sliders, and proximity sensors without external components.
Architecturally, the device uses a Cortex-M23 core with single-cycle I/O access, a flexible SERCOM block that can be configured as UART, SPI, I2C, or LIN, and a low-power RTC with calendar and alarm functions. The 32KB Flash is organized as 32K x 8 with ECC protection, and the 8KB SRAM is retained across sleep modes. The Cortex-M23 implements the ARMv8-M Baseline instruction set, bringing modern tooling and code density advantages to the Microchip low-power portfolio.
Typical applications include IoT sensor nodes, wearable health and fitness devices, smart-home control panels with touch input, battery-powered remotes, industrial sensors with HMI, ISO7816 smart card readers, and energy-harvesting wireless endpoints using LoRa, BLE, or sub-GHz transceivers. The 24-SSOP package enables compact PCB designs while remaining hand-solderable for prototyping.
When designing with this device, place a 100 nF decoupling capacitor as close as possible to the VDD pin and add a bulk capacitor of at least 1 uF on the main supply rail. Connect unused I/O pins to a defined logic level (VCC or GND) to minimize shoot-through current during deep-sleep cycles. The Cortex-M23 supports Sleep, Deep-Sleep, and Standby modes selectable via the Power Manager, allowing per-application optimization of wake-up latency versus current consumption.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, helping sourcing engineers and firmware developers evaluate the ATSAML10D15A-YFT for next-generation low-power designs as of 2026-09-22.
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