ATSAMD10C13A-SSNT - 32-bit Cortex-M0+ MCU 48MHz 8KB Flash | Microchip
MPN: ATSAMD10C13A-SSNT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.85 | $18.50 |
| 100 | $1.55 | $155.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.15 | $1,150.00 |
ATSAMD10C13A-SSNT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals such as timers, communication interfaces, and analog blocks. The Cortex-M0+ is the smallest and most energy-efficient member of the ARM Cortex-M family, making it ideal for cost-sensitive, low-power embedded applications. Within Microchip's broader hierarchy, the SAM D10 sits below the SAM D20 (Cortex-M0+ with more pins) and the SAM D21 (Cortex-M0+ with USB), positioning the ATSAMD10C13A as the entry-level gateway into the SAM D family.
Key features of the ATSAMD10C13A-SSNT include a 2.46 CoreMark/MHz core, single-cycle 32-bit hardware multiplier, 6 SERCOM modules configurable as I²C, SPI, or UART, a 12-bit 350 ksps ADC with up to 5 channels, an 8-channel 16-bit timer/counter, and a full-speed USB 2.0 device interface on selected variants. The device integrates a 32.768 kHz RTC with calendar mode and supports low-power Sleep, Standby, and Backup modes drawing only a few microamperes.
Architecturally, the ATSAMD10C13A-SSNT uses the Cortex-M0+ v6-M profile with a single-cycle IO port, NVIC with 4 priority levels, and Microchip's proprietary Event System for inter-peripheral signalling without CPU intervention. This event-driven design lets peripherals like timers, SERCOM, and the ADC interact directly, offloading the CPU and reducing active current consumption in typical IoT duty cycles.
Typical applications include home automation sensors, low-end consumer electronics, smart metering nodes, industrial control loops, and battery-powered IoT endpoints. The compact 14-pin SOIC footprint supports both hand-soldered prototypes and high-volume reflow assembly.
When designing with this MCU, ensure the VDDCORE pin is decoupled with a 1 µF ceramic capacitor, and that the SWD interface (SWDIO/SWCLK on PA30/PA31) is accessible for programming and debug via Atmel Studio or MPLAB X IDE. The brown-out detector (BOD) should be enabled in production firmware to safeguard against supply droops below 1.6 V.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.
Drop-in alternatives for ATSAMD10C13A-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 ATSAMD10C13A-SSNT (same form factor and footprint) — differing in Package, ADC, Communication Interfaces, Core Architecture, Flash Memory.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAMD10C14A-SSNT
✅ Drop-In✓ In Stock
$1.97 / Unit
View Datasheet →ATSAMD10C13A-SSUT
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →ATSAMD10C13A-SSNF
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAMD10C13A-SSNT Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M0+ (32-bit) |
| Maximum CPU Frequency | 48 MHz |
| CoreMark per MHz | 2.46 |
| Flash Memory | 8 KB (8K x 8) |
| SRAM | 4 KB |
| Supply Voltage (VDD) | 1.6 V to 3.6 V |
| Operating Temperature | -40 °C to +105 °C |
| Package | 14-pin SOIC (3.90 mm width) |
| Mounting Type | Surface Mount |
| Number of I/O Pins | 12 |
| Communication Interfaces | I²C, SPI, UART/USART, LINbus (6 SERCOM) |
| ADC | 12-bit, up to 5 channels, 350 ksps |
| Timers | 16-bit TC, 32-bit RTC, Watchdog |
| Program/Debug Interface | SWD (2-wire) |
| MSL Level | MSL3 |
| RoHS Status | Compliant |
ATSAMD10C13A-SSNT Pin Configuration
| Pin 1 | PA00 — GPIO / XIN (external clock input) / ADC[0] |
| Pin 2 | PA01 — GPIO / XOUT (external clock output) / ADC[1] |
| Pin 3 | PA02 — GPIO / AIN[0] (analog comparator) / SERCOM alt |
| Pin 4 | GND — Common ground |
| Pin 5 | VDD — Supply voltage 1.6 V to 3.6 V |
| Pin 6 | PA03 — GPIO / VREFA / ADC[3] / SERCOM alt |
| Pin 7 | PA04 — GPIO / VREFB / SERCOM alt |
| Pin 8 | PA05 — GPIO / SERCOM alt |
| Pin 9 | PA06 — GPIO / SERCOM alt |
| Pin 10 | PA07 — GPIO / SERCOM alt |
| Pin 11 | PA30 — GPIO / SWDIO (programming/debug data) |
| Pin 12 | PA31 — GPIO / SWCLK (programming/debug clock) |
| Pin 13 | RESET — Active-low reset, internal pull-up |
| Pin 14 | VDDCORE — Internal regulator output - decouple with 1 µF to GND |
Typical Applications
ATSAMD10C13A-SSNT is suitable for 7 applications: Home Automation Sensor Node, Smart Metering Endpoint, Industrial Control Loop Controller, Wearable Fitness Tracker Sub-MCU, Consumer Appliance User Interface, Battery-Powered IoT Endpoint, Toy and Hobby Electronics Controller.
Home Automation Sensor Node
The ATSAMD10C13A-SSNT suits battery-powered home automation sensors (temperature, humidity, door/window contact, motion) because of its 1.6-3.6 V wide supply range that works directly from 2xAA alkaline or a single CR2032 with boost, plus its Cortex-M0+ efficiency at 2.46 CoreMark/MHz. Its six SERCOM modules map to concurrent I²C sensor reads, SPI display updates, and UART debug output without external peripherals. Sleep current in Backup mode is a few hundred nanoamperes, supporting multi-year coin-cell life when waking every few seconds for a single ADC conversion.
Recommended
Smart Metering Endpoint
For electricity, gas, and water metering endpoints, the ATSAMD10C13A-SSNT offers the 12-bit 350 ksps ADC required for accurate analog front-end sampling, paired with the 32-bit RTC for time-stamped consumption logging. Its LINbus-capable SERCOM interfaces directly to metering transceivers, while the 8 KB Flash holds metering firmware plus a small secure bootloader. Operating range up to +105 °C supports outdoor cabinet installations in direct sun.
Recommended
Industrial Control Loop Controller
Small industrial control loops (valve actuation, pump speed reference, conveyor sequencing) fit the ATSAMD10C13A-SSNT thanks to its 16-bit timer/counter for PWM generation and its event system that triggers ADC sampling without CPU load. The 48 MHz headroom and Cortex-M0+ deterministic interrupt response let closed-loop updates run inside 100 µs cycles. The SOIC-14 package tolerates conformal coating and hand rework better than QFN alternatives.
Recommended
Wearable Fitness Tracker Sub-MCU
Wearable fitness bands benefit from the ATSAMD10C13A-SSNT as a low-power sub-MCU driving simple LED indicators, button handling, and haptic feedback while a separate BLE SoC handles wireless. The Backup mode with RTC retention wakes the system once per second for sub-mA average consumption. The 14-SOIC package supports thin-flex PCB attachment in band designs, and the 1.6 V minimum lets it run directly from a partially depleted Li-ion cell.
Recommended
Consumer Appliance User Interface
User-interface boards in white goods (washing machine displays, microwave keypads, dishwasher status indicators) use the ATSAMD10C13A-SSNT to scan key matrices, drive LED/LCD segments, and exchange commands with the main appliance controller via UART or LINbus. The 12 GPIO pins are sufficient for 4x4 keypads plus LCD control lines, and 8 KB Flash holds the menu state machine and indicator logic with headroom for OTA-capable bootloader. Industrial +105 °C rating suits inside-cabinet thermal load.
Recommended
Battery-Powered IoT Endpoint
The ATSAMD10C13A-SSNT fits generic battery-powered IoT endpoints (soil moisture probes, asset trackers, environmental loggers) where 1-5 year battery life is mandatory. The combination of Cortex-M0+ efficiency, deep-sleep currents under 1 µA with RTC retention, and an event system that wakes the MCU on sensor threshold crossings without polling extends operating life dramatically. The 1.6-3.6 V supply works directly from a single LiSOCl2 primary cell with no regulator.
Recommended
Toy and Hobby Electronics Controller
Low-cost toy robots, RC accessories, and hobby electronics benefit from the ATSAMD10C13A-SSNT's small 14-SOIC footprint, sub-$2 unit price at 100 pieces, and 48 MHz headroom for motor PWM, sound synthesis, and LED matrix driving. The SERCOM-based SPI interfaces to small OLED displays while a second SERCOM drives WS2812-style addressable LEDs via bit-banged protocol. The 1.6 V minimum lets designers use 2xAAA battery packs directly.
Recommended
Recommended Products Summary
Engineering reference data for ATSAMD10C13A-SSNT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAMD10C14A-SSNT | ATSAMD10C13A-SSUT | ATSAMD10D13A-SSNT | STM32G031G8U6 |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | STMicroelectronics |
| Package | 14-SOIC | 14-SOIC - same | 14-SOIC - same | 20-SOIC - different footprint | TSSOP-20 - different footprint |
| Core | Cortex-M0+ 48 MHz | Cortex-M0+ 48 MHz | Cortex-M0+ 48 MHz | Cortex-M0+ 48 MHz | Cortex-M0+ 64 MHz |
| Flash | 8 KB | 16 KB | 8 KB | 8 KB | 8 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB | 8 KB |
| GPIO Count | 12 | 12 | 12 | 18 | 17 |
| Supply Voltage | 1.6 V - 3.6 V | 1.6 V - 3.6 V | 1.6 V - 3.6 V | 1.6 V - 3.6 V | 2.0 V - 3.6 V |
| Operating Temperature | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +85 °C |
| USB | No | No | No | No | No |
Key Differentiators
- Smallest SAM D10 Flash option in 14-SOIC for cost-sensitive designs (vs ATSAMD10C14A-SSNT)
- Lower pin count for space-constrained boards vs D14 family (vs ATSAMD10D13A-SSNT)
- Lower SRAM but tighter power tuning vs STM32G0 (vs STM32G031G8U6)
Design Notes
Decouple VDDCORE (pin 14) with a 1 µF X7R ceramic capacitor placed within 3 mm of the pin and routed with a short wide trace to ground. VDD (pin 5) needs a 100 nF decoupling capacitor plus a 1 µF bulk capacitor if the source impedance is above 1 Ω. Power-rail droop below 1.6 V without the brown-out detector enabled can cause unintended Flash writes or peripheral lockup; enable BOD33 at the lowest tolerable threshold during production firmware bring-up.
Place the 14-SOIC land pattern to keep the SWD header (or pogo-pins) within 50 mm of PA30 and PA31 for reliable programming. If your design uses an external crystal on PA00/PA01, route the crystal traces symmetrically with short lengths (< 10 mm) and guard them with a ground pour to reduce EMI pickup. The RESET line should include a 10 kΩ pull-up to VDD and a 1 nF capacitor to ground for manual reset button debouncing.
A common pitfall is forgetting that PA30/SWDIO and PA31/SWCLK are not 5 V tolerant and cannot be used as standard GPIO if SWD debugging must remain functional. Locking these pins into GPIO mode via the NVMUSERROW fuses prevents debugger access and bricks recovery without a high-voltage programmer. Always configure GCLK and DFLL48M properly before switching to high-frequency operation, otherwise the CPU executes at the 8 MHz internal oscillator until firmware reconfigures the PLL.
When using SERCOM in SPI mode above 8 MHz, add a 33 Ω series resistor at the SCK source pin to dampen ringing caused by the SOIC lead inductance (~ 4 nH) and trace capacitance. For I²C buses running above 400 kHz, use 4.7 kΩ pull-ups instead of the typical 10 kΩ to meet rise-time specs; below 100 kHz the standard 10 kΩ is fine. The Event System should be used in place of interrupt-driven peripheral chaining to reduce ISR latency and CPU wake events.
Compliance Information
RoHS compliant per distributor listings. Not AEC-Q100 qualified - for automotive, use ATSAMD10C13A-SSNTVAO variant. Halogen-free status not specified in available data.
