ATSAMD10D14A-MNT - 48MHz Cortex-M0+ MCU, 16KB Flash | Microchip
MPN: ATSAMD10D14A-MNT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.55 | $25.50 |
| 100 | $2.18 | $218.00 |
| 500 | $1.92 | $960.00 |
| 1,000 | $1.65 | $1,650.00 |
| 3,000 | $1.42 | $4,260.00 |
ATSAMD10D14A-MNT Overview
An ARM Cortex-M0+ microcontroller is a 32-bit RISC processor core designed by ARM Holdings as the smallest, lowest-power member of the Cortex-M family. It uses the Thumb-2 instruction set subset, includes a single-cycle 32x32 hardware multiplier, and targets cost-sensitive embedded applications that benefit from modern 32-bit performance, deterministic interrupt handling via the Nested Vectored Interrupt Controller (NVIC), and broad ecosystem support. Within the broader system hierarchy it belongs to microcontrollers (MCU), then to embedded processors, and ultimately to the integrated circuit (IC) taxonomy; in power terms it occupies the ultra-low-power tier favored by battery-operated IoT endpoints.
Key features include the Cortex-M0+ core with single-cycle I/O access, an integrated high-speed 48 MHz internal RC oscillator (with on-the-fly re-calibration), a 32 kHz low-power oscillator option for RTC use, multiple SERCOM serial interfaces, a 12-bit ADC, 10-bit DAC, and configurable PWM timers. The device supports up to 22 GPIO pins, hardware CRC, a frequency meter, and a touch-friendly peripheral mix that suits capacitive sensing front-ends. Microchip's SAM D10 family is also notable for integrating a peripheral touch controller (PTC) for button/slider/proximity surfaces.
Architecturally the part combines a von-Neumann bus with tightly-coupled Flash and SRAM, zero-wait-state execution from Flash up to 48 MHz, and a sophisticated SleepWalking peripheral system that wakes only the peripherals needed for an event. The brown-out detector (BOD), power-on reset (POR), and window watchdog timer (WDT) together provide a robust embedded safety net, while the 6-channel event system and DMA-free interrupt-driven SERCOM mapping reduce CPU load in typical sensor-fusion designs.
Typical applications include home-automation sensor nodes, low-end consumer wearables, smart metering endpoints, industrial control sub-modules, and human-machine interface (HMI) accessories such as capacitive touch buttons. The combination of small QFN-24 footprint and low active current also makes it attractive as a co-processor or housekeeping MCU in larger systems.
When designing with this part, allocate the SERCOM and TC peripherals carefully against GPIO count, and remember the QFN-24 (4x4 mm) requires careful PCB land pattern work and an exposed thermal pad that should be soldered for best thermal and electrical performance.
This page consolidates distributor pricing, drop-in alternatives in the same 24-QFN footprint, and design notes compiled from the manufacturer datasheet and typical applications, going beyond what any single source provides.
Drop-in alternatives for ATSAMD10D14A-MNT 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 ATSAMD10D14A-MNT (same form factor and footprint) β differing in Package, RoHS Status, ADC, Operating Temperature, MSL Level.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATSAMD10D14A-MUT
β Drop-Inπ Reference alternative (not in catalog)
ATSAMD10D13A-MUT
β Drop-Inβ In Stock
$1.81 / Unit
View Datasheet βATSAMD11D14A-MUT
β Drop-Inπ Reference alternative (not in catalog)
ATSAMD11D14A-MNT
β Drop-Inβ In Stock
$1.2 / Unit
View Datasheet βATSAMD20G18A-MNT
β Drop-Inπ Reference alternative (not in catalog)
ATSAMD10D14A-MNT Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M0+ |
| Core Architecture | ARM 32-bit |
| Maximum Clock Frequency | 48 MHz |
| CoreMark/MHz | 2.46 |
| Program Memory (Flash) | 16 KB (16K x 8) |
| SRAM | 4 KB |
| Operating Voltage Range | 1.6 V to 3.6 V |
| Operating Temperature Range | -40C to +105C |
| Package | 24-pin QFN (4x4 mm) |
| GPIO Count | Up to 22 |
| ADC | 12-bit |
| DAC | 10-bit |
| Mounting Type | Surface Mount |
| MSL Level | MSL3 (per JEDEC J-STD-020, typical for QFN) |
| RoHS Status | Compliant |
| Series | SAM D10D |
ATSAMD10D14A-MNT Pin Configuration
| Pin 1 | PA02 β GPIO/ADC input (AIN[2]) |
| Pin 2 | PA03 β GPIO/ADC reference input |
| Pin 3 | PA04 β GPIO/ADC input (AIN[4]) |
| Pin 4 | PA05 β GPIO/ADC input (AIN[5]) |
| Pin 5 | PA06 β GPIO/ADC input (AIN[6]) |
| Pin 6 | PA07 β GPIO/ADC input (AIN[7]) |
| Pin 7 | VDD β Digital supply voltage (1.6 V - 3.6 V) |
| Pin 8 | GND β Ground |
| Pin 9 | PA08 β GPIO / SERCOM I2C SDA |
| Pin 10 | PA09 β GPIO / SERCOM I2C SCL |
| Pin 11 | PA10 β GPIO / SERCOM / TCC PWM |
| Pin 12 | PA11 β GPIO / SERCOM / TCC PWM |
| Pin 13 | PA14 β GPIO / SERCOM / SWD clock (if SWD enabled) |
| Pin 14 | PA15 β GPIO / SERCOM / SWD data (if SWD enabled) |
| Pin 15 | PA16 β GPIO / SERCOM / TC PWM |
| Pin 16 | PA17 β GPIO / SERCOM / TC PWM |
| Pin 17 | PA18 β GPIO / SERCOM |
| Pin 18 | PA19 β GPIO / SERCOM |
| Pin 19 | PA22 β GPIO / SERCOM / GCLK output |
| Pin 20 | PA23 β GPIO / SERCOM / GCLK output |
| Pin 21 | PA24 β GPIO / SERCOM (USB D- on D11 family) |
| Pin 22 | PA25 β GPIO / SERCOM (USB D+ on D11 family) |
| Pin 23 | RESET β Active-low reset input |
| Pin 24 | EP β Exposed thermal pad - must be soldered to GND |
Typical Applications
ATSAMD10D14A-MNT is suitable for 6 applications: Home Automation Sensor Node, Smart Metering Endpoint, Capacitive Touch HMI Accessory, Industrial Control Sub-Module, Consumer Wearable / Fitness Tracker, Low-End BLDC Fan / Pump Controller.
Home Automation Sensor Node
The ATSAMD10D14A-MNT suits battery-powered home-automation endpoints such as door/window sensors, leak detectors, and ambient light nodes. Its 1.6-3.6 V supply range lets it run directly from a single CR2032 coin cell or 2xAA pack, eliminating a boost regulator. The Cortex-M0+ core at 48 MHz and 2.46 CoreMark/MHz delivers enough headroom for BLE/Zigbee stack preprocessing, while the on-chip 12-bit ADC reads temperature, humidity, or PIR outputs without external components. Sleep currents as low as a few microamps extend coin-cell life to multiple years.
Recommended
Smart Metering Endpoint
Utility metering applications - water, gas, and electricity submetering - benefit from the ATSAMD10D14A-MNT's low active current and accurate 12-bit ADC. The 16 KB Flash stores calibration tables and small DLMS/COSEM or wireless M-Bus frame handlers, while 4 KB SRAM buffers measurement bursts before transmission. The device's -40C to +105C temperature range handles outdoor cabinet environments, and the integrated 32 kHz RTC oscillator lets the MCU wake on schedule to take readings, maximizing battery life in 10-year-life utility deployments.
Recommended
Capacitive Touch HMI Accessory
The ATSAMD10D14A-MNT integrates a peripheral touch controller (PTC) that supports up to 12 self-capacitance or mutual-capacitance electrodes, making it ideal for capacitive touch buttons, sliders, and proximity sensors in appliance, lighting, and consumer-electronics HMIs. The Cortex-M0+ core runs Microchip's QTouch library while the SERCOM peripherals drive I2C/SPI to host MCUs or LEDs. At 1.6-3.6 V the part fits both 3.3 V appliances and 5 V-tolerant battery backups, and the 24-QFN fits behind glass in slim industrial designs.
Recommended
Industrial Control Sub-Module
As a housekeeping MCU in industrial systems the ATSAMD10D14A-MNT handles watchdog, sequencing, and local I/O tasks. Its 22 GPIOs, multiple SERCOM channels, and 12-bit ADC can read analog sensors (pressure, flow, temperature) and drive isolated digital outputs. The 24-QFN footprint mounts on a small daughter card behind the main controller, with the brown-out detector and window watchdog providing the safety layer expected in industrial control per IEC 61131-3 host designs.
Recommended
Consumer Wearable / Fitness Tracker
Wearable designs need a small footprint, low active power, and accurate ADC front-ends - all of which the ATSAMD10D14A-MNT provides. The Cortex-M0+ at 48 MHz runs gesture and step-count algorithms while keeping current draw below 10 mA in active mode. The on-chip 10-bit DAC can drive haptic feedback, and the integrated event system lets the MCU wake from sleep only when motion triggers occur, extending multi-day battery runtime in wristbands and fitness rings.
Recommended
Low-End BLDC Fan / Pump Controller
Small brushless DC motors in fans, pumps, and PC case coolers benefit from the ATSAMD10D14A-MNT's PWM timers, ADC, and Cortex-M0+ throughput. The TC (Timer/Counter) peripherals generate complementary PWM with dead-time insertion to drive a 3-phase gate driver, while the ADC samples back-EMF for sensorless commutation. With 16 KB Flash the device holds sensorless-FOC or trapezoidal commutation code plus application logic, all in a thermally efficient 24-QFN package that drops straight onto 4-layer fan PCBs.
Recommended
Recommended Products Summary
Engineering reference data for ATSAMD10D14A-MNT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAMD10D14A-MUT | ATSAMD10D13A-MUT | ATSAMD11D14A-MUT | ATSAMD11D14A-MNT | ATSAMD20G18A-MNT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-24 (4x4 mm) | QFN-24 (4x4 mm) - same | QFN-24 (4x4 mm) - same | QFN-24 (4x4 mm) - same | QFN-24 (4x4 mm) - same | QFN-48 (different) |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Max Clock Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash Memory | 16 KB | 16 KB | 12 KB | 16 KB | 16 KB | 64 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 8 KB |
| Operating Voltage | 1.6 V to 3.6 V | 1.6 V to 3.6 V | 1.6 V to 3.6 V | 1.6 V to 3.6 V | 1.6 V to 3.6 V | 1.62 V to 3.63 V |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
| USB 2.0 FS Device | No | No | No | Yes | Yes | No |
| GPIO Count (max) | 22 | 22 | 22 | 22 | 22 | 38 |
Key Differentiators
- Same package, higher Flash density (vs ATSAMD10D13A-MUT)
- USB 2.0 full-speed peripheral on identical pinout (vs ATSAMD11D14A-MUT)
- Compact 24-QFN vs larger 48-QFN (vs ATSAMD20G18A-MNT)
Design Notes
The 24-QFN (4x4 mm) exposed thermal pad (EP) must be soldered to the PCB ground plane for mechanical reliability and best thermal performance. Use a via-array (4-9 microvias) under the EP, stitching them to internal ground planes, per the Microchip SAM D10 hardware design guidelines. Route noisy switching traces (PWM, comms) away from analog ADC inputs (PA02-PA07) to avoid digital-induced ADC noise; add a ferrite bead on AVDD if the application requires > 10-bit effective ADC resolution.
Place a 0.1 uF decoupling capacitor as close as possible to each VDD pin pair, plus a 1 uF bulk capacitor on the main supply rail. The SAM D10 internal voltage regulator (LDO) requires a 1 uF low-ESR cap on the VDDIO supply output; failure to follow the reference design's cap values causes brown-out resets under switching load. For battery applications using a CR2032 (3 V, 235 mAh), the inrush during transmit bursts should be limited to < 5 mA average to preserve coin-cell life; use SleepWalking peripherals rather than CPU-driven polling.
Do not assume SERCOM pad mappings are fixed: the SAM D10 datasheet lists alternate functions for every GPIO, but pin multiplexing must be configured per peripheral in the PORT and SERCOM registers before use. Forgetting to set the PMUX bits yields a silent I2C/SPI failure that is hard to debug. Also, when migrating from the Atmel Studio 7 framework to MPLAB X with Harmony, the SERCOM and ADC initialization sequences differ - review the migration guide before porting firmware. Estimated: avoid setting core clock above 48 MHz; the SAM D10 family is not rated for overclocking and may exhibit Flash read errors.
Compliance Information
RoHS compliant per Microchip SAM D10 product page. Not AEC-Q100 qualified - automotive applications should select AEC-Q100 qualified SAM DA1x or SAM C20/C21 variants instead. Halogen-free per Microchip green packaging policy.
