ATSAML10D15A-MF - 32KB Flash Cortex-M23 MCU | Microchip
MPN: ATSAML10D15A-MF β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.71 | $2.71 |
| 10 | $2.45 | $24.50 |
| 100 | $2.1 | $210.00 |
| 500 | $1.78 | $890.00 |
| 1,000 | $1.52 | $1,520.00 |
ATSAML10D15A-MF Overview
A microcontroller (MCU) is an integrated circuit that combines a processor core, program memory (Flash), data memory (SRAM), and a rich set of on-chip peripherals into a single chip. The Cortex-M23 core represents ARM's smallest and most energy-efficient implementation of the Armv8-M architecture, sitting at the bottom of the Cortex-M hierarchy (Cortex-M23 -> Cortex-M0+ -> Cortex-M3 -> Cortex-M4 -> Cortex-M7). Microcontrollers belong to the broader category of embedded processors and are a sub-category of integrated circuits used for real-time control and sensing tasks.
Key features of the ATSAML10D15A-MF include an enhanced peripheral touch controller for capacitive sensing without external components, a 12-bit ADC, multiple SERCOM channels configurable as I2C/SPI/UART, an ISO7816 smart card interface, an Event System for CPU-independent peripheral interconnect, and a 125Β°C maximum junction temperature for industrial-grade operation. TrustZone-M security is NOT included (that feature belongs to the SAM L11 family).
The ATSAML10D15A-MF integrates Microchip's proprietary picoPower technology and an on-chip buck converter that keeps the core logic supplied efficiently across a 1.62V to 3.63V VDD range. The 24-VQFN (4x4 mm) package is one of the smallest variants in the SAM L10 lineup and includes an exposed pad for thermal dissipation.
Typical applications include IoT sensor nodes, wearable health monitors, smart-home battery devices, capacitive touch human-machine interfaces (HMIs), secure access peripherals, and low-power wireless sensor endpoints. The 100 nA sleep current extends battery life beyond 10 years when paired with a CR2032 cell and a properly duty-cycled radio.
Designers should pair the ATSAML10D15A-MF with a 100 nF decoupling capacitor on each VDD pin plus a 4.7 uF bulk capacitor on the main supply, and connect the exposed pad to a continuous ground plane for thermal performance. The brown-out detector (BOD) and watchdog timer (WDT) should always be enabled in production firmware.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving engineers a single reference for evaluation, sourcing, and BOM optimization.
Drop-in alternatives for ATSAML10D15A-MF 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-MF (same form factor and footprint) β differing in Package, ADC, SRAM, Core, RoHS Status.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATSAML10D14A-MF
β Drop-Inβ In Stock
$2.18 / Unit
View Datasheet βATSAML10D15A-MFT
β Drop-Inπ Reference alternative (not in catalog)
ATSAML11D15A-MUT
β Drop-Inπ Reference alternative (not in catalog)
ATSAML10D16A-MF
β Drop-Inπ Reference alternative (not in catalog)
ATSAML10D15A-MF Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M23 (SAM L10 family) |
| CPU Clock Speed | 32 MHz |
| Flash Memory | 32 KB (32K x 8) |
| SRAM | 8 KB |
| Supply Voltage (VDD) | 1.62 V to 3.63 V |
| Active Current | < 25 uA/MHz |
| Sleep Current | < 100 nA |
| Maximum Junction Temperature | 125 C |
| Package | 24-VQFN (4x4 mm) |
| Operating Temperature Grade | -40C to +125C (Industrial) |
| ADC | 12-bit |
| Number of I/O Pins | 17 |
| Communication Peripherals | I2C, SPI, UART/USART, LINbus |
| Touch Controller | Peripheral Touch Controller (PTC) |
| Smart Card Interface | ISO7816 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
ATSAML10D15A-MF Pin Configuration
| Pin 1 | PA02 β General-purpose I/O / ADC input |
| Pin 2 | PA03 β General-purpose I/O |
| Pin 3 | PA04 β General-purpose I/O / SERCOM |
| Pin 4 | PA05 β General-purpose I/O |
| Pin 5 | PA06 β General-purpose I/O |
| Pin 6 | PA07 β General-purpose I/O |
| Pin 7 | PA08 β General-purpose I/O |
| Pin 8 | PA09 β General-purpose I/O |
| Pin 9 | VDD β Main supply input (1.62V to 3.63V) |
| Pin 10 | GND β Ground |
| Pin 11 | PA10 β General-purpose I/O |
| Pin 12 | PA11 β General-purpose I/O |
| Pin 13 | PA14 β General-purpose I/O / SWCLK |
| Pin 14 | PA15 β General-purpose I/O |
| Pin 15 | PA16 β General-purpose I/O |
| Pin 16 | PA17 β General-purpose I/O |
| Pin 17 | PA18 β General-purpose I/O |
| Pin 18 | PA19 β General-purpose I/O |
| Pin 19 | RESET β Reset input (active-low) |
| Pin 20 | SWDIO β Serial Wire Debug I/O |
| Pin 21 | PA24 β General-purpose I/O |
| Pin 22 | PA25 β General-purpose I/O |
| Pin 23 | PA27 β General-purpose I/O / boot entry |
| Pin 24 | PA28 β General-purpose I/O |
Typical Applications
ATSAML10D15A-MF is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Wearable Health and Fitness Devices, Capacitive Touch Human-Machine Interfaces, Smart Card and Secure Access Readers, Industrial Sensor and Field Transmitters, Smart Home Battery Devices.
Battery-Powered IoT Sensor Nodes
The ATSAML10D15A-MF suits battery-powered IoT sensor nodes because of its sub-100 nA sleep current and sub-25 uA/MHz active current, allowing coin-cell CR2032 lifetimes exceeding 10 years when duty-cycled. The 32KB Flash stores BLE beacon stacks or LoRaWAN device firmware, while the on-chip 12-bit ADC reads temperature, humidity, or gas-sensor outputs without external signal conditioning. The integrated Peripheral Touch Controller (PTC) supports up to 32 self-capacitive buttons, eliminating external touch ICs and reducing BOM cost.
Recommended
Wearable Health and Fitness Devices
The ATSAML10D15A-MF is well-suited to wearable health and fitness devices that demand small PCB footprint, low heat dissipation, and long battery life. The 4x4 mm 24-VQFN package fits comfortably inside wristbands and patches, while the Cortex-M23 core runs heart-rate, SpO2, and step-counting algorithms within its 32KB Flash budget. The 125Β°C junction temperature rating supports wearable designs that warm under direct sunlight or skin contact without thermal throttling.
Recommended
Capacitive Touch Human-Machine Interfaces
The ATSAML10D15A-MF's on-chip Peripheral Touch Controller (PTC) supports both self-capacitance and mutual-capacitance touch sensing, enabling robust touch buttons, sliders, and wheels with no external touch IC. The 125Β°C temperature rating and IEC 61000-4-6 noise immunity make it suitable for kitchen appliances, industrial control panels, and automotive HMI sub-assemblies. The 32KB Flash stores touch-debounce and gesture-recognition firmware for sealed-glass interfaces that operate with wet or gloved fingers.
Recommended
Smart Card and Secure Access Readers
The ATSAML10D15A-MF includes an ISO7816 smart card interface, allowing direct connection to contact smart cards used in payment, identification, and access-control readers. The Cortex-M23 core runs card-application firmware such as EMVCo payment kernels, while the 8KB SRAM holds ISO 14443 transaction buffers. For designs requiring hardware-isolated secure elements, migrate to the ATSAML11D15A-MUT which adds TrustZone-M, but the SAM L10 covers most non-payment access-control use cases cost-effectively.
Recommended
Industrial Sensor and Field Transmitters
The ATSAML10D15A-MF operates across the industrial -40Β°C to +125Β°C temperature range and consumes sub-25 uA/MHz active, making it well-suited to 4-20 mA loop-powered field transmitters. The 12-bit ADC reads bridge-pressure sensors and RTDs, while the on-chip Event System handles timing-critical sensor sampling without CPU intervention. The 24-VQFN package's exposed pad enables operation at elevated ambient temperatures typical of process-control enclosures and outdoor installations.
Recommended
Smart Home Battery Devices
The ATSAML10D15A-MF powers smart-home battery devices such as door/window sensors, PIR motion detectors, and battery-powered HVAC thermostats where sub-100 nA sleep current extends multi-year battery life. The Cortex-M23 core executes Zigbee Green Power or proprietary RF-stack sleep routines efficiently, while the 32KB Flash stores device descriptors, pairing keys, and OTA update logic. The integrated PTC enables touch-button user interfaces on thermostats and doorbells without extra components.
Recommended
Recommended Products Summary
Engineering reference data for ATSAML10D15A-MF β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAML10D14A-MF | ATSAML10D15A-MFT | ATSAML11D15A-MUT | ATSAML10D16A-MF |
|---|---|---|---|---|---|
| Package | 24-VQFN (4x4 mm) | 24-VQFN (4x4 mm) - same | 24-VQFN (4x4 mm) - same | 24-VQFN (4x4 mm) - same | 24-VQFN (4x4 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 16 KB | 32 KB | 32 KB | 64 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| TrustZone-M Security | No | No | No | Yes | No |
| Sleep Current | < 100 nA | < 100 nA | < 100 nA | < 100 nA | < 100 nA |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
Key Differentiators
- Sub-100 nA sleep current with full Cortex-M23 performance (vs ATSAML10D14A-MF)
- Drop-in TrustZone upgrade path exists in same package (vs ATSAML11D15A-MUT)
- Industry-leading picoPower technology with on-chip buck converter (vs Generic Cortex-M0+ alternatives)
Design Notes
Place a 100 nF ceramic decoupling capacitor within 3 mm of each VDD pin and a single 4.7 uF X5R bulk capacitor on the main supply rail. The on-chip buck converter requires an external 4.7 uH inductor on the LX pin - do not omit. Disable unused peripherals in software via the PMUX/APBCMASK registers to achieve the sub-100 nA sleep current, otherwise leakage from enabled SERCOM or ADC can add 2-5 uA.
The 24-VQFN package relies on the exposed pad for heat removal. Connect the EP to a continuous ground plane with at least 8 thermal vias (0.3 mm drill, 0.5 mm pitch) to the inner ground layer. Without this, junction-to-ambient thermal resistance rises from roughly 40 C/W to over 80 C/W, potentially triggering thermal shutdown at high ambient temperatures with sustained CPU load.
Route the SWDIO and SWCLK signals away from high-frequency switching nodes (DC-DC SW node, RF antenna traces) to avoid debug-interference failures. Keep SWCLK trace length below 50 mm and add a 10 kohm pull-up on SWDIO as specified in the SAM L10 datasheet. Use a 4-layer stack-up with the second layer as a continuous ground plane for best signal integrity on SERCOM and PTC touch traces.
Do not apply 3.3V to a pin before VDD ramps - the I/O cells are 5V-tolerant only after VDD is stable, and back-powering through I/O can latch-up the part. Always enable the brown-out detector (BOD33) at the lowest threshold above your minimum operating voltage. Failure to do so risks corrupted Flash during battery-end-of-life brownout events. Use the Microchip bootloader (via SWD) to recover a locked device.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - SAM L10 family targets industrial and consumer applications; for automotive AEC-Q100 designs, use SAM V71/SAM E70 families.
