ATSAML10D14A-MUT - 32MHz Cortex-M23 MCU 16KB Flash | Microchip
MPN: ATSAML10D14A-MUT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.65 | $16.50 |
| 100 | $1.42 | $142.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $0.98 | $980.00 |
| 3,000 | $0.85 | $2,550.00 |
ATSAML10D14A-MUT Overview
What is a low-power microcontroller? A low-power microcontroller (MCU) is an integrated circuit that combines a CPU core, memory, and peripherals while consuming the minimum energy required to perform its tasks. It typically falls under the broader categories of embedded controller -> microcontroller -> semiconductor IC, and is essential for battery-operated, energy-harvesting, and always-on IoT devices where quiescent current and sleep-mode efficiency directly determine battery life.
Key features of the ATSAML10D14A-MUT include an enhanced Peripheral Touch Controller (PTC) for capacitive touch sensing, a 12-bit analog-to-digital converter (ADC), a 10-bit digital-to-analog converter (DAC), operational amplifiers, and multiple SERCOM serial communication interfaces. It also integrates an ISO7816 smart card interface, event system for peripheral interconnections without CPU intervention, and robust security features including secure boot and cryptographic accelerators. The device operates from a 1.62V to 3.63V supply.
The SAM L10 architecture uses the ARM Cortex-M23 core with TrustZone-ready hardware isolation (note: TrustZone is available on the SAM L11 sibling family, not the L10). The chip's sleep current under 100 nA and active efficiency below 25 uA/MHz make it ideal for always-on sensor hubs, wearable health monitors, and remote IoT endpoints that may spend most of their lifecycle in deep sleep. The integrated PTC supports moisture-tolerant touch buttons and sliders with minimal CPU overhead.
Typical applications include smart home sensor nodes, wearable fitness bands, electronic shelf labels, battery-powered medical sensors, smart card readers, and industrial IoT endpoints. Its PTC and low-power ADC enable always-on touch interfaces that wake the system only on user interaction.
When designing with this device, prioritize sleep-mode current optimization and PTC scan scheduling to maximize battery life. Use the integrated op-amps for signal conditioning before the ADC to reduce BOM cost and PCB area.
This page synthesizes distributor pricing, drop-in same-family SAM L10 alternatives, and practical low-power design notes not consolidated on the manufacturer product page.
Drop-in alternatives for ATSAML10D14A-MUT — 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 ATSAML10D14A-MUT (same form factor and footprint) — differing in ADC, Package, RoHS Status, SRAM, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAML10D15A-MUT
✅ Drop-In✓ In Stock
$2.12 / Unit
View Datasheet →ATSAML10D16A-MUT
✅ Drop-In✓ In Stock
$2.51 / Unit
View Datasheet →ATSAML11D14A-MUT
✅ Drop-In✓ In Stock
$1.62 / Unit
View Datasheet →ATSAML10D14A-MF
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →ATSAML10D14A-MFT
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAML10D14A-MUT Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M23 |
| CPU Architecture | 32-bit RISC |
| Maximum Clock Speed | 32 MHz |
| Program Memory (Flash) | 16 KB (16K x 8) |
| SRAM | 4 KB |
| Operating Voltage Range | 1.62 V to 3.63 V |
| Active Mode Current | < 25 uA/MHz |
| Sleep Mode Current | < 100 nA |
| Package | 24-VQFN (4x4 mm) with exposed pad |
| Mounting Type | Surface Mount |
| ADC | 12-bit |
| DAC | 10-bit |
| Peripheral Touch Controller (PTC) | Yes (enhanced, moisture tolerant) |
| SERCOM Serial Interfaces | Yes (multiple) |
| ISO7816 Smart Card Interface | Yes |
| Operational Amplifiers | Yes (integrated) |
| Event System | Yes (peripheral-to-peripheral) |
| Operating Temperature Range | -40C to +85C (industrial) |
| RoHS Status | Compliant (Green, Pb-free) |
ATSAML10D14A-MUT Pin Configuration
| Pin 1 | PA00 — General-purpose I/O (XTAL32K_IN) |
| Pin 2 | PA01 — General-purpose I/O (XTAL32K_OUT) |
| Pin 3 | GND — Ground |
| Pin 4 | VDDIO — I/O supply voltage |
| Pin 5 | PA04 — General-purpose I/O (ADC input) |
| Pin 6 | PA05 — General-purpose I/O (ADC input) |
| Pin 7 | PA06 — General-purpose I/O (DAC output / OPAMP) |
| Pin 8 | PA07 — General-purpose I/O (OPAMP) |
| Pin 9 | PA08 — General-purpose I/O (SERCOM) |
| Pin 10 | PA09 — General-purpose I/O (SERCOM) |
| Pin 11 | PA10 — General-purpose I/O (SERCOM) |
| Pin 12 | PA11 — General-purpose I/O (SERCOM) |
| Pin 13 | VDDIN — Voltage regulator input |
| Pin 14 | GND — Ground |
| Pin 15 | VDDCORE — Internal core voltage output |
| Pin 16 | PA14 — General-purpose I/O (SERCOM) |
| Pin 17 | PA15 — General-purpose I/O (SERCOM) |
| Pin 18 | PA16 — General-purpose I/O (SERCOM) |
| Pin 19 | PA17 — General-purpose I/O (SERCOM) |
| Pin 20 | PA18 — General-purpose I/O (PTC X-line) |
| Pin 21 | PA19 — General-purpose I/O (PTC Y-line) |
| Pin 22 | PA22 — General-purpose I/O (PTC Y-line) |
| Pin 23 | PA27 — General-purpose I/O / Reset |
| Pin 24 | VSW — Voltage regulator switch / NC |
| Pin EP | EP — Exposed thermal pad (must be soldered to GND plane) |
Typical Applications
ATSAML10D14A-MUT is suitable for 6 applications: Battery-Powered IoT Sensor Node, Wearable Fitness and Health Device, Smart Card Reader and POS Terminal, Capacitive Touch User Interface, Industrial IoT Endpoint, Electronic Shelf Label.
Battery-Powered IoT Sensor Node
The ATSAML10D14A-MUT is ideal for battery-powered IoT sensor nodes that spend most of their lifecycle in deep sleep. Its < 100 nA sleep current combined with the integrated 12-bit ADC and event system lets sensor hubs wake only on threshold events without CPU intervention. Designers can use the multiple SERCOM interfaces to connect LoRa, BLE companion chips, or environmental sensors. With 16 KB Flash and 4 KB SRAM, simple sensor-fusion code and small protocol stacks fit comfortably, and the 1.62-3.63 V supply range accepts 3.6 V Li-SOCl2 primary cells directly, eliminating boost converters.
Recommended
Wearable Fitness and Health Device
The ATSAML10D14A-MUT suits wearable fitness bands and health monitors where small PCB area, low power, and capacitive touch interface are required. Its < 25 uA/MHz active current at 32 MHz lets heart-rate, motion, and SpO2 sensor reads run from a small Li-ion cell for weeks. The enhanced Peripheral Touch Controller (PTC) supports moisture-tolerant buttons and sliders with no mechanical switches, improving reliability against sweat and water. The integrated op-amps and 12-bit ADC simplify biopotential signal conditioning, while the 10-bit DAC can drive bias voltages for optical sensors.
Recommended
Smart Card Reader and POS Terminal
The ATSAML10D14A-MUT integrates an ISO7816 smart card interface, which is purpose-built for smart card readers, payment terminals, and access-control panels. The Cortex-M23 core executes payment-cryptography libraries within its 16 KB Flash while the integrated crypto accelerators handle AES and SHA quickly. With sleep current below 100 nA, battery-backed terminals can sit idle for months yet respond instantly to card insertion via the ISO7816 interrupt. The multiple SERCOM ports support USB-CDC bridges, NFC readers, and displays.
Recommended
Capacitive Touch User Interface
The ATSAML10D14A-MUT excels at replacing mechanical buttons and switches with capacitive touch interfaces in home appliances, industrial panels, and consumer electronics. Its enhanced PTC autonomously scans up to several touch channels with moisture and noise immunity, allowing the MCU to remain in deep sleep until a touch event triggers a wake-up. The 1.62 V minimum supply supports 2xAA battery operation, and the integrated op-amps let designers add proximity sensing with minimal external components. The event system routes touch events directly to GPIO without waking the CPU for software debouncing.
Recommended
Industrial IoT Endpoint
The ATSAML10D14A-MUT fits industrial IoT endpoints such as wireless sensor transmitters, condition-monitoring modules, and HVAC controllers. Its industrial temperature grade (-40C to +85C) handles factory-floor environments, while the robust ADC and event system support predictive-maintenance algorithms. The low active current enables solar or energy-harvesting power, and the integrated ISO7816 interface allows secure key storage for authenticated device provisioning. Multiple SERCOMs support RS-485, I2C sensor buses, and Sub-GHz radios via SPI.
Recommended
Electronic Shelf Label
The ATSAML10D14A-MUT is well-suited to electronic shelf labels (ESL) in retail environments, where battery life and small footprint are critical. Its < 100 nA deep sleep current lets coin-cell-powered labels last 5-10 years between battery swaps, and the 32 MHz Cortex-M23 core refreshes the e-paper display quickly during short active bursts. The integrated op-amps can drive the e-paper waveform directly via PWM, and the event system wakes the MCU on RF sync messages. The 16 KB Flash is sufficient for ESL stack, display drivers, and wireless-protocol libraries.
Recommended
Recommended Products Summary
Engineering reference data for ATSAML10D14A-MUT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAML10D15A-MUT | ATSAML10D16A-MUT | ATSAML11D14A-MUT | ATSAML10D14A-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 |
| Core | Cortex-M23 | Cortex-M23 | Cortex-M23 | Cortex-M23 with TrustZone | Cortex-M23 |
| Flash | 16 KB | 24 KB | 32 KB | 16 KB | 16 KB |
| SRAM | 4 KB | 4 KB | 8 KB | 4 KB | 4 KB |
| Max Clock Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| TrustZone | No | No | No | Yes (Armv8-M TrustZone) | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (extended) |
| Active Current | < 25 uA/MHz | < 25 uA/MHz | < 25 uA/MHz | < 25 uA/MHz | < 25 uA/MHz |
Key Differentiators
- Lowest active current in Cortex-M23 class (vs Generic Cortex-M23 competitor)
- Same footprint as SAM L11 TrustZone variant (vs ATSAML11D14A-MUT)
- Integrated Peripheral Touch Controller with moisture tolerance (vs Discrete touch ICs requiring separate MCU)
Design Notes
Estimated: at 32 MHz active and 3.3 V supply, the ATSAML10D14A-MUT draws roughly 25 uA/MHz x 32 MHz = 800 uA. For duty-cycled sensor-hub designs, average current is dominated by deep-sleep current (< 100 nA) and active-burst duration. A 1 ms active burst every second gives average current under 1 uA, enabling coin-cell (220 mAh CR2032) life of years. Always use the SAM L10's Sleep Walking feature for peripheral-only operations before fully waking the CPU.
The 24-VQFN (4x4 mm) exposed pad must be soldered to a continuous ground plane for thermal dissipation and electrical reference. Use a 0.5 mm pitch land pattern per Microchip's SAM L10 package diagram. Keep the VSW and VDDCORE decoupling capacitors within 2 mm of their respective pins to minimize switching noise on the internal regulator. Avoid routing high-speed signals across the exposed-pad area to maintain ground-plane integrity.
Do not enable brown-out detection at voltages above your minimum operating rail without verifying battery discharge curves - sudden reset on a partially discharged cell can corrupt Flash writes. The PTC scan timing must be configured for the chosen touch sensor geometry; using default timings can yield false positives in noisy environments. When migrating from SAM D20/D21 to SAM L10, verify that SERCOM peripheral numbering matches - SAM L10 SERCOM numbering differs from legacy SAM D parts.
Compliance Information
RoHS-compliant and lead-free (Green) per Microchip product page. Industrial-grade only; not AEC-Q100 qualified. For automotive-grade SAM L10 variants, see ATSAML10D14A-MF (extended temperature).
