ATSAML10D15A-YFT - 32KB Flash ARM Cortex-M23 MCU 32MHz
MPN: ATSAML10D15A-YFT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.25 | $3.25 |
| 10 | $2.93 | $29.30 |
| 100 | $2.61 | $261.00 |
| 500 | $2.34 | $1,170.00 |
| 1,000 | $2.1 | $2,100.00 |
ATSAML10D15A-YFT Overview
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.
Drop-in alternatives for ATSAML10D15A-YFT β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATSAML10D15A-YFT (same form factor and footprint) β differing in ADC, Package, RoHS Status, Active Mode Current, Sleep Mode Current.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATSAML10D14A-MF
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$2.18 / Unit
View Datasheet βATSAML10D15A-YUT
β Drop-Inβ In Stock
$1.89 / Unit
View Datasheet βATSAML11D15A-YFT
β Drop-Inπ Reference alternative (not in catalog)
ATSAML11D15A-MUT
β Drop-Inπ Reference alternative (not in catalog)
ATSAML10D15A-YFT Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M23 |
| Instruction Set | ARMv8-M Baseline (Thumb-2) |
| Maximum CPU Frequency | 32 MHz |
| Data Bus Width | 32-bit |
| Flash Memory Size | 32 KB (32K x 8) |
| SRAM Size | 8 KB |
| Package | 24-pin SSOP (YFT) |
| Mounting Type | Surface Mount |
| Active Mode Current | <25 uA/MHz |
| Sleep Mode Current | <100 nA |
| ADC | 12-bit |
| DAC | 10-bit |
| Operational Amplifier | Yes (integrated) |
| Analog Comparator (AC) | Yes |
| Peripheral Touch Controller (PTC) | Yes (capacitive sensing) |
| SERCOM | Multiple (UART/SPI/I2C/LIN configurable) |
| ISO7816 Smart Card Interface | Yes |
| Event System | Yes |
| RoHS Status | Compliant |
ATSAML10D15A-YFT Pin Configuration
| Pin 1 | VDD β Main supply voltage |
| Pin 2 | PA00 β GPIO / peripheral I/O |
| Pin 3 | PA01 β GPIO / peripheral I/O |
| Pin 4 | PA02 β GPIO / peripheral I/O |
| Pin 5 | PA03 β GPIO / peripheral I/O |
| Pin 6 | PA04 β GPIO / peripheral I/O |
| Pin 7 | PA05 β GPIO / peripheral I/O |
| Pin 8 | PA06 β GPIO / peripheral I/O |
| Pin 9 | PA07 β GPIO / peripheral I/O |
| Pin 10 | PA08 β GPIO / peripheral I/O |
| Pin 11 | PA09 β GPIO / peripheral I/O |
| Pin 12 | GND β Ground |
| Pin 13 | PA10 β GPIO / peripheral I/O |
| Pin 14 | PA11 β GPIO / peripheral I/O |
| Pin 15 | PA14 β GPIO / peripheral I/O |
| Pin 16 | PA15 β GPIO / peripheral I/O |
| Pin 17 | PA16 β GPIO / peripheral I/O |
| Pin 18 | PA17 β GPIO / peripheral I/O |
| Pin 19 | PA22 β GPIO / peripheral I/O |
| Pin 20 | PA23 β GPIO / peripheral I/O |
| Pin 21 | RESET β Reset input (active low) |
| Pin 22 | SWDIO β Serial Wire Debug data |
| Pin 23 | SWCLK β Serial Wire Debug clock |
| Pin 24 | VDDIO β I/O supply voltage |
Typical Applications
ATSAML10D15A-YFT is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Wearable Fitness and Health Devices, Smart-Home Touch Control Panels, ISO 7816 Smart Card Readers, Industrial Sensor HMI, Energy-Harvesting Wireless Endpoints.
Battery-Powered IoT Sensor Nodes
The ATSAML10D15A-YFT's <100 nA sleep current and <25 uA/MHz active current make it ideal for battery-powered IoT sensor nodes that wake periodically to read sensors and transmit. The 12-bit ADC samples analog sensors while the SERCOM ports drive BLE, LoRa, or Sub-GHz radio transceivers. With 32 KB Flash and 8 KB SRAM, the MCU runs BLE/LoRaWAN stack plus application firmware for years on a single CR2032.
Recommended
Wearable Fitness and Health Devices
Wearable fitness and health devices benefit from the ATSAML10D15A-YFT's 32-bit Cortex-M23 DSP performance with sub-100 nA standby, supporting always-on heart-rate and step-count sensing. The integrated operational amplifier and 12-bit ADC capture ECG and bioimpedance signals directly, while the enhanced Peripheral Touch Controller handles swipe-style user input. Battery life easily exceeds two weeks on a small Li-Po cell with the part in deep-sleep between measurements.
Recommended
Smart-Home Touch Control Panels
Smart-home touch panels rely on the ATSAML10D15A-YFT's enhanced Peripheral Touch Controller to drive capacitive buttons, sliders, and proximity sensors without external touch ICs, cutting BOM cost. The 32 KB Flash houses the touch firmware and Zigbee/BLE stack, while SERCOM interfaces control LEDs and triac drivers. Energy Star standby compliance is achievable thanks to the <100 nA sleep current drawn between user interactions.
Recommended
ISO 7816 Smart Card Readers
ISO 7816 smart card readers leverage the ATSAML10D15A-YFT's integrated ISO 7816 smart card interface, eliminating the need for an external smart card IC. The 32 MHz Cortex-M23 runs protocol T=0/T=1 stacks securely from 32 KB Flash. The 12-bit ADC and analog comparator provide robust line-monitoring for ESD and over-voltage conditions on the card contacts.
Recommended
Industrial Sensor HMI
Industrial sensor HMI applications benefit from the ATSAML10D15A-YFT's robust 12-bit ADC, integrated op-amp, and analog comparators providing front-end signal conditioning and threshold detection in a single chip. The Cortex-M23 core drives local capacitive touch interfaces, while SERCOM channels link to RS-485 or CAN transceivers. Wide operating temperature range and <100 nA standby make this device suitable for always-on field instrumentation.
Recommended
Energy-Harvesting Wireless Endpoints
Energy-harvesting wireless endpoints using the ATSAML10D15A-YFT achieve self-powered operation by exploiting the <100 nA sleep current, allowing wake-on-interrupt from sub-millisecond piezo-electric or solar harvests. The 32 KB Flash stores small LoRa or BLE firmware images, and the Cortex-M23 wakes the radio only when sensor data and harvested energy are both available. The MCU reliably runs from a 1.5 V or 3.3 V supply rail with no additional LDO required for many sensors.
Recommended
Recommended Products Summary
Engineering reference data for ATSAML10D15A-YFT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAML10D14A-MF | ATSAML10D15A-YUT | ATSAML11D15A-YFT | ATSAML11D15A-MUT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-24 (YFT) | QFN-32 (MF) | SSOP-24 (same) | SSOP-24 (same) | QFN-32 (MUT) |
| Core | ARM Cortex-M23 32 MHz | ARM Cortex-M23 24 MHz | ARM Cortex-M23 32 MHz | ARM Cortex-M23 32 MHz + TrustZone-M | ARM Cortex-M23 32 MHz + TrustZone-M |
| Flash Size | 32 KB | 16 KB | 32 KB | 32 KB | 32 KB |
| SRAM Size | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Sleep Current | <100 nA | <100 nA | <100 nA | <100 nA | <100 nA |
| TrustZone-M Security | No | No | No | Yes | Yes |
| Touch Controller (PTC) | Yes (enhanced) | Yes (enhanced) | Yes (enhanced) | Yes (enhanced) | Yes (enhanced) |
| RoHS Compliance | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Industry-leading <100 nA sleep current in a 32-bit Cortex-M23 (vs ATSAMD20J15A-AN)
- Enhanced Peripheral Touch Controller integrated (vs ATSAML11D15A-YFT)
- Analog-rich integration (op-amp + DAC + AC) (vs ATSAML10D15A-YUT)
Design Notes
Estimated: at VDD = 3.3 V with CPU at 32 MHz active, the ATSAML10D15A-YFT draws about 25 uA/MHz, giving roughly 800 uA in full-speed compute plus sensor SERCOM activity. In Deep-Sleep with RTC running, current drops to under 1.5 uA, and in full Standby with retained SRAM, expect below 100 nA. Decouple VDD with a 100 nF X7R ceramic capacitor placed within 2 mm of the VDD pin to suppress switch-mode ripple that would otherwise pin the part into a higher sleep-current mode.
Route the SWDIO and SWCLK traces as short, matched-length pairs and place a 10 k pull-up on SWDIO during reset to ensure reliable Cortex-M23 debug-port hand-shake. Keep noisy switcher traces away from analog inputs (AIN0 - AIN3) and the integrated op-amp pins to preserve the 12-bit ADC's ENOB specification.
When migrating from SAM D20 Cortex-M0+ firmware, verify the NVIC priority bit count - Cortex-M23 uses 4 priority bits compared to M0+'s 2 bits, which can change pre-emption behavior in ISRs. Also, the Cortex-M23 TrustZone-M bit is OFF on SAM L10 devices, but firmware masking the secure-region on a SAM L11 then re-flashing back to a SAM L10 will lock the device - always erase the entire Flash array before changing security settings.
Compliance Information
RoHS compliant per Microchip product page. AEC-Q100 qualification not specified for the SAM L10 family - choose PIC16F916-I/SO or similar automotive-grade MCUs for automotive applications.
