ATSAMD10C14A-SSNT - ARM Cortex-M0+ MCU 48MHz 16KB Flash | Microchip
MPN: ATSAMD10C14A-SSNT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.47 | $3.47 |
| 10 | $3.12 | $31.20 |
| 100 | $2.66 | $266.00 |
| 500 | $2.3 | $1,150.00 |
| 1,000 | $1.97 | $1,970.00 |
ATSAMD10C14A-SSNT Overview
A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory (Flash), working memory (SRAM), and peripheral interfaces such as GPIO, timers, ADC, and communication blocks into one device. MCUs sit at the lowest tier of embedded computing, below microprocessors (MPUs) and application processors, and are used wherever deterministic, low-power, firmware-driven control is required. ARM Cortex-M0+ cores represent the smallest, most energy-efficient tier of the ARM Cortex-M family and target cost-sensitive 8/16-bit replacement designs while retaining a 32-bit instruction set.
Key features of the ATSAMD10C14A-SSNT include 2.46 CoreMark/MHz efficiency, an integrated single-cycle hardware multiplier, support for up to 6 SERCOM (serial communication) instances configurable as UART/SPI/I2C, a 12-bit 350 ksps ADC with up to 5 channels in this package, and Microchip's Event System for hardware-triggered peripheral interaction without CPU wake-up. The 14-SOIC package exposes limited I/O (approximately 12 GPIO), making this part suitable for compact, low-pin-count nodes.
Architecturally, the SAM D10C uses the Cortex-M0+ core with a single 32-bit AHB-Lite bus matrix, an internal 8 MHz RC oscillator with PLL options, and Microchip's SleepWalking peripheral power-gating. The result is a typical active current under 4 mA/MHz and sleep currents below 5 µA with full SRAM retention, optimizing the device for battery-powered always-on sensor applications.
Typical applications include home automation nodes, consumer appliance controls, smart metering, IoT sensor endpoints, and compact industrial control peripherals. The wide 1.6 V to 3.6 V supply range simplifies single-cell Li-ion or 2x AA battery designs without external LDO stages.
When designing with this part, ensure decoupling includes a 100 nF ceramic capacitor within 2 mm of the VDD pin and a bulk capacitor (≥1 µF) on the regulator output. Because only 14 pins are available, careful peripheral multiplexing is required; review the SERCOM/I/O pinout table in the device datasheet before committing the PCB layout.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the Microchip product page.
Drop-in alternatives for ATSAMD10C14A-SSNT — 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 ATSAMD10C14A-SSNT (same form factor and footprint) — differing in ADC, Communication Interfaces, Package, Operating Temperature Range, Supply Voltage Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAMD10C14A-SSUT
✅ Drop-In✓ In Stock
$1.12 / Unit
View Datasheet →ATSAMD11C14A-SSUT
✅ Drop-In✓ In Stock
$1.8 / Unit
View Datasheet →ATSAMD10D14A-MZ
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ATSAMC20N18A-ANT
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →LPC802M011BDH
✅ Drop-In📋 Reference alternative (not in catalog)
CY8C4014SXI-421
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAMD10C14A-SSNT Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M0+ 32-bit RISC |
| Family | SAM D10C |
| Maximum CPU Frequency | 48 MHz |
| CoreMark/MHz | 2.46 |
| Flash Memory | 16 KB |
| SRAM | 4 KB |
| Supply Voltage (VDD) | 1.6 V to 3.6 V |
| Operating Temperature | -40 °C to +105 °C |
| Package | 14-pin SOIC (SOIC-14 / SS) |
| GPIO Count | 12 (approximate, package-limited) |
| ADC | 12-bit, up to 350 ksps, 5 channels (package-limited) |
| Communication Interfaces | Up to 6 SERCOM (UART/SPI/I2C configurable) |
| Timers | 16-bit TC x2, 32-bit TC x1 (RTC + TCC combinations) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Green / Lead-Free | Green, lead-free |
ATSAMD10C14A-SSNT Pin Configuration
| Pin 1 | VDD — Power supply input (1.6 V to 3.6 V) |
| Pin 2 | PA08 — GPIO / ADC AIN[16] / SERCOM pad (peripheral function depends on multiplexing) |
| Pin 3 | PA09 — GPIO / ADC AIN[17] / SERCOM pad |
| Pin 4 | PA14 — GPIO / SERCOM pad (XIN / XOUT possible) |
| Pin 5 | PA15 — GPIO / SERCOM pad |
| Pin 6 | VSS — Ground |
| Pin 7 | PA16 — GPIO / SERCOM pad (crystal XIN / XOUT possible) |
| Pin 8 | PA17 — GPIO / SERCOM pad (crystal XIN / XOUT possible) |
| Pin 9 | PA18 — GPIO / SERCOM pad |
| Pin 10 | PA19 — GPIO / SERCOM pad |
| Pin 11 | PA22 — GPIO / SERCOM pad |
| Pin 12 | PA23 — GPIO / SERCOM pad / USB D- (D11 family only, not bonded on D10C) |
| Pin 13 | PA27 — GPIO / SERCOM pad |
| Pin 14 | VDD — Power supply input (1.6 V to 3.6 V) |
Typical Applications
ATSAMD10C14A-SSNT is suitable for 7 applications: Home Automation Sensor Nodes, Consumer Appliance Controls, Smart Metering Endpoints, IoT Wearable Devices, Industrial Control Peripherals, Compact Wireless Remote Controls, Toys and Educational Electronics.
Home Automation Sensor Nodes
The ATSAMD10C14A-SSNT fits home automation sensor hubs that need a low-power 32-bit MCU in a compact 14-SOIC footprint. Its 48 MHz Cortex-M0+ core can run Zigbee- or sub-GHz-radio state machines while the 4 KB SRAM buffers queued packet descriptors. Sleep current below 5 µA (SRAM retained) lets a battery node last several years between replacements. The 12-bit ADC reads battery voltage and analog sensors without external components. Compared to a discrete 8-bit MCU plus logic gates, the single-chip integration reduces BOM cost and PCB area in wall-switch and battery-powered sensors.
Recommended
Consumer Appliance Controls
Consumer appliances such as coffee makers, air purifiers, and small kitchen tools benefit from the ATSAMD10C14A-SSNT's 32-bit performance and tiny 14-SOIC footprint. The 6 SERCOM channels drive an OLED display, I2C sensor stack, capacitive-touch I/O, and a UART link to an inverter MCU. The 1.6 V to 3.6 V supply runs directly from a single-cell Li-ion or 2x AA batteries, eliminating the auxiliary LDO. Industrial-grade 105 °C operation survives enclosed, warm appliance enclosures. Touch sensing can use the PTC peripheral for up to 4 keys without external touch ICs, keeping the BOM under $1.
Recommended
Smart Metering Endpoints
Smart gas, water, and electricity metering endpoints run well on the ATSAMD10C14A-SSNT because of its 1.6 V to 3.6 V operation and integrated 12-bit 350 ksps ADC that captures pulse trains from metrology front ends. The 16 KB Flash holds metering algorithms plus simple tamper detection. The Cortex-M0+ provides deterministic interrupt latency for energy accumulation pulses. With the SERCOM configured as an optical UART (IEC 62056-21) or wireless M-Bus bridge, the MCU can serve as the sub-meter coordinator. Industrial 105 °C rating supports outdoor enclosures.
Recommended
IoT Wearable Devices
Wearable fitness bands and BLE beacon tags use the ATSAMD10C14A-SSNT as the application controller sitting behind a Bluetooth Low Energy SoC. The 48 MHz Cortex-M0+ processes sensor-fusion data from accelerometers and heart-rate LEDs, while the 4 KB SRAM buffers 100 Hz motion samples for batch upload. The 1.6 V minimum supply runs from a single Li-ion coin cell directly, without a boost converter. The 12 GPIO handle I2C, SPI, interrupts, and PWM for vibration motors. Battery life is the killer spec here and the sub-5 µA deep-sleep with full SRAM retention extends runtime to multi-week levels.
Recommended
Industrial Control Peripherals
Compact industrial peripherals like loop indicators, sensor transmitters, and small PLC I/O modules use the ATSAMD10C14A-SSNT for its 105 °C operating range and ARM Cortex-M0+ deterministic performance. The 12-bit ADC reads 4-20 mA loop current or 0-10 V process signals, while two SERCOM channels communicate as RS-485 slaves and one as an I2C sensor host. The 14-SOIC footprint fits a 24 mm x 14 mm field-mountable PCB. With 16 KB Flash, the device stores PID loop code plus calibration tables. The wide 1.6 V to 3.6 V supply simplifies loop-powered 4-20 mA transmitter designs.
Recommended
Compact Wireless Remote Controls
Universal RF remote controls and smart key fobs rely on the ATSAMD10C14A-SSNT to debounce a keypad matrix, encrypt the keystroke, and forward it to an RF transceiver (sub-GHz, BLE, or proprietary OOK). The Event System wakes the MCU on a key press without polling, dropping deep-sleep current below 5 µA. The 14-SOIC footprint fits inside a CR2032-keyfob enclosure, while the 48 MHz core runs AES-128 encryption in approximately 30 µs per block. The wide 1.6 V to 3.6 V range tolerates the CR2032 discharge curve down to the 1.8 V cut-off without brown-out resets.
Recommended
Toys and Educational Electronics
Cost-sensitive toys, hobby kits, and educational STEM controllers adopt the ATSAMD10C14A-SSNT because it combines an Arduino-compatible programming ecosystem (MCC / MPLAB X / Arduino IDE core) with a 14-SOIC through-hole-friendly footprint for kits. The Cortex-M0+ gives young learners real 32-bit coding experience. With 16 KB Flash, a kit can host a full educational curriculum sample, and the 6 SERCOM channels let students connect displays, servos, and sensors. Pricing near $1.97 at reel quantities keeps the kit BOM under $10.
Recommended
Recommended Products Summary
Engineering reference data for ATSAMD10C14A-SSNT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAMD10C14A-SSUT | ATSAMD11C14A-SSUT | LPC802M011BDH | CY8C4014SXI-421 |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | NXP Semiconductors | Infineon / Cypress |
| Package | 14-SOIC | 14-SOIC (same) | 14-SOIC (same) | 14-SOIC (same) | 14-SOIC (same) |
| CPU Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ with USB 2.0 FS | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Maximum CPU Frequency | 48 MHz | 48 MHz | 48 MHz | 15 MHz | 16 MHz |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 2 KB | 2 KB |
| Supply 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 | 1.8 V to 5.5 V |
| Operating Temperature | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| USB Peripheral | No | No | Yes, USB 2.0 Full-Speed | No | No |
| Approx. Unit Price (qty 1) | $3.47 USD | $3.47 USD | $3.85 USD | $1.90 USD | $1.80 USD |
Key Differentiators
- Highest 48 MHz Cortex-M0+ frequency in a 14-SOIC footprint (vs LPC802M011BDH)
- Six configurable SERCOM channels versus dedicated-mode peripherals (vs CY8C4014SXI-421)
- Industrial +105 °C operating temperature versus commercial-grade rivals (vs LPC802M011BDH)
- USB 2.0 FS peripheral upgrade path within the same SOIC-14 (vs ATSAMD10C14A-SSNT itself (no USB))
Design Notes
Place a 100 nF X7R ceramic decoupling capacitor within 2 mm of the VDD pins (pin 1 and pin 14 share the supply rail) and add a bulk 1 µF to 10 µF capacitor at the output of the upstream regulator. The SAM D10 has low internal bulk capacitance, so external decoupling must handle inrush during sleep-to-active wake transitions. Estimated: at 48 MHz, instantaneous current spikes can reach 12 mA during flash-accelerator refresh events, so the bulk capacitor prevents VDD droop.
Keep the SOIC-14 traces for VDD and VSS wider than 0.4 mm. The exposed pad is not present on the SOIC package, so all thermal dissipation occurs through the four package pins. For continuous operation at 105 °C in enclosed housings, route VDD with a 0.6 mm-wide copper pour to spread heat. Mount at least 1 mm clear of any high-voltage (>24 V) traces to satisfy EN 61010 industrial spacing requirements.
Do not assume the SAM D10 boots from an external crystal; the device starts on the internal 8 MHz DFLL by default. To use an external 32.768 kHz crystal for RTC accuracy, configure the FUSES via Atmel/MPLAB start-up configuration BEFORE locking the general-purpose fuse bits, otherwise the MCU may brick. Also confirm PA22 and PA23 are remapped if your application previously used them as SERCOM 3 because USB pins are present on SAM D11 but not bonded on SAM D10C.
If using the SERCOM as SPI at 10 MHz or higher, place a 33 Ω series resistor on each MOSI/MISO/CLK trace to damp ringing caused by the capacitive loading of the SOIC-14 lead frame. The internal pad drivers are optimized for short traces (<50 mm), so keep SPI buses on the same PCB layer and avoid vias on clock lines. Pull-ups on I2C buses should be 2.2 kΩ to 4.7 kΩ depending on bus capacitance, not 10 kΩ as commonly assumed.
Compliance Information
RoHS and REACH compliant per Microchip product declaration. Not AEC-Q100 qualified; for automotive choose SAM D10 AEC-Q100 variants. Lead-free and halogen-free (green) per Microchip green-product statement.
