ATSAML10E16A-MF - 32MHz Cortex-M23 MCU, 64KB Flash | Microchip
MPN: ATSAML10E16A-MF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.95 | $3.95 |
| 10 | $3.55 | $35.50 |
| 100 | $3.16 | $316.00 |
| 500 | $2.85 | $1,425.00 |
| 1,000 | $2.55 | $2,550.00 |
| 3,000 | $2.21 | $6,630.00 |
ATSAML10E16A-MF Overview
An ARM Cortex-M23 microcontroller is a 32-bit processor core built on the Armv8-M architecture with TrustZone-ready security extensions. The Cortex-M23 family sits beneath Cortex-M33 in Arm's hierarchy, prioritizing minimal power consumption and deterministic interrupt response for deeply embedded applications. Microcontrollers of this class combine the CPU core, Flash program memory, SRAM, and a wide peripheral set on a single silicon die.
Key features of the ATSAML10E16A-MF include a 32 MHz maximum CPU clock, 64KB of embedded Flash and 16KB of SRAM, an enhanced Peripheral Touch Controller (PTC) for capacitive touch, an ISO/IEC 7816 smart-card interface, an Event System for hardware-level peripheral signaling, plus a 12-bit ADC, 10-bit DAC, and an on-chip op-amp. The part supports 1.62V to 3.63V supply and provides six SERCOM modules configurable as UART, SPI, or I2C.
Architecturally, the device uses an Armv8-M baseline core with single-cycle I/O access, deterministic Wake-up Interrupt Controller, and a low-power SleepWalking peripheral scheme. The SAM L10 family is also the first Cortex-M23 MCU family with built-in PTC and 125C automotive-temperature-grade variants, broadening its suitability across industrial, consumer, and automotive domains.
Typical applications include IoT sensor nodes, wearable health and fitness devices, smart-card and NFC secure terminals, capacitive-touch user interfaces, and battery-powered industrial sensors. The 125C operating temperature range (denoted by the -MF suffix) extends deployment to harsh-environment and automotive-grade designs.
When designing with this MCU, ensure that VDDIO and VDDANA are tied to the same voltage rail and that decoupling capacitors are placed close to both supply pins. For sleep-mode designs, validate the current figures against the actual peripheral configuration, since enabling SERCOM, ADC, or PTC increases SleepWalking current.
This page synthesizes distributor pricing, same-family SAM L10 drop-in alternatives, and practical design considerations not found in the standalone manufacturer datasheet.
Drop-in alternatives for ATSAML10E16A-MF — 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 ATSAML10E16A-MF (same form factor and footprint) — differing in Package, ADC, Core Architecture, Core, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAML10E15A-MF
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAML10E15A-AF
✅ Drop-In✓ In Stock
$1.15 / Unit
View Datasheet →ATSAML11E16A-MF
✅ Drop-In✓ In Stock
$2.05 / Unit
View Datasheet →ATSAML10E15A-MUT
✅ Drop-In✓ In Stock
$2.74 / Unit
View Datasheet →ATSAML10D16A-MFT
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.7 / Unit
View Datasheet →ATSAML10D15A-MF
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →ATSAML10E16A-MF Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M23 (Armv8-M baseline) |
| CPU Bit Width | 32-bit |
| Maximum CPU Clock | 32 MHz |
| Flash Program Memory | 64 KB (64K x 8) |
| SRAM | 16 KB |
| Package | 32-pin VQFN (5x5 mm) |
| Mounting Type | Surface Mount |
| Supply Voltage | 1.62 V to 3.63 V |
| Operating Temperature | -40C to +125C |
| Active Mode Current | < 25 uA/MHz |
| Sleep Mode Current | < 100 nA |
| Touch Controller | Enhanced Peripheral Touch Controller (PTC) |
| Communication Interfaces | 6x SERCOM (UART/SPI/I2C), ISO/IEC 7816 smart-card interface |
| Analog | 12-bit ADC, 10-bit DAC, 1 op-amp |
| Event System | Yes (peripheral-to-peripheral) |
| RoHS Status | Compliant |
| MSL Level | 3 (168 hours) |
ATSAML10E16A-MF Pin Configuration
| Pin 1 | VDDIO — I/O supply voltage input (must share rail with VDDANA) |
| Pin 2 | GND — Common ground |
| Pin 3 | PA02 — GPIO / SERCOM / ADC channel |
| Pin 4 | PA03 — GPIO / SERCOM / ADC channel |
| Pin 5 | PA04 — GPIO / SERCOM / ADC channel |
| Pin 6 | PA05 — GPIO / SERCOM / ADC channel |
| Pin 7 | PA06 — GPIO / SERCOM / ADC channel |
| Pin 8 | PA07 — GPIO / SERCOM / ADC channel |
| Pin 9 | PA08 — GPIO / SERCOM / ADC channel |
| Pin 10 | PA09 — GPIO / SERCOM / ADC channel |
| Pin 11 | PA10 — GPIO / SERCOM / ADC channel |
| Pin 12 | PA11 — GPIO / SERCOM / ADC channel |
| Pin 13 | PA14 — GPIO / SERCOM / XCLK |
| Pin 14 | PA15 — GPIO / SERCOM |
| Pin 15 | PA16 — GPIO / SERCOM |
| Pin 16 | PA17 — GPIO / SERCOM |
| Pin 17 | PA18 — GPIO / SERCOM |
| Pin 18 | PA19 — GPIO / SERCOM |
| Pin 19 | PA20 — GPIO / SERCOM |
| Pin 20 | PA21 — GPIO / SERCOM |
| Pin 21 | PA22 — GPIO / SERCOM |
| Pin 22 | PA23 — GPIO / SERCOM |
| Pin 23 | PA24 — GPIO / SERCOM |
| Pin 24 | PA25 — GPIO / SERCOM |
| Pin 25 | PA27 — GPIO / SERCOM |
| Pin 26 | RESET — Reset input (active low) |
| Pin 27 | SWDIO — Serial Wire Debug I/O |
| Pin 28 | SWCLK — Serial Wire Debug clock |
| Pin 29 | VDDANA — Analog supply voltage (must share rail with VDDIO) |
| Pin 30 | GND — Common ground |
| Pin 31 | XIN32 — 32.768 kHz crystal input |
| Pin 32 | XOUT32 — 32.768 kHz crystal output |
Typical Applications
ATSAML10E16A-MF is suitable for 6 applications: Battery-Powered IoT Sensor Node, Wearable Fitness and Health Device, Smart-Card / NFC Secure Terminal Reader, Capacitive Touch User Interface, Industrial Sensor / Factory Automation Module, Smart Home Hub / Edge Sensor.
Battery-Powered IoT Sensor Node
The ATSAML10E16A-MF is purpose-built for battery-powered IoT sensor nodes where the sub-100 nA Sleep current and 25 uA/MHz Active figure extend coin-cell lifetime to multi-year levels. The Cortex-M23 core runs Microchip's MPLAB Harmony FreeRTOS or bare-metal LoRaWAN/BLE stacks within the 64 KB Flash, while 16 KB SRAM buffers sensor payloads before radio transmission. The 1.62-3.63 V single-rail supply matches a single Li-ion or 2xAA battery, and the 6x SERCOM module count lets the MCU speak UART to a sensor, I2C to a temperature/humidity device, and SPI to a LoRa or Sub-GHz radio concurrently.
Recommended
Wearable Fitness and Health Device
The ATSAML10E16A-MF's enhanced Peripheral Touch Controller, low active current, and small 5x5 mm VQFN footprint suit it to wearable fitness bands and health patches worn on the wrist or skin. The PTC handles capacitive button or swipe gestures without waking the CPU for every scan, and the 12-bit ADC plus op-amp can directly bias and read a PPG photodiode for heart-rate or SpO2 monitoring. SleepWalking peripherals let the device wake only when the sensor reports a qualified event, supporting weeks-long battery life in always-on fitness form factors.
Recommended
Smart-Card / NFC Secure Terminal Reader
The ATSAML10E16A-MF integrates an ISO/IEC 7816 smart-card interface directly on-chip, eliminating the external bridge IC required by general-purpose MCUs and reducing BOM cost and board area. Combined with the Cortex-M23 core's deterministic interrupt latency, the MCU can run a smart-card T=0 or T=1 protocol stack inside 64 KB Flash while a host controller offloads higher-level application logic. The 125C operating temperature grade supports outdoor payment terminals, e-metering, and e-identification kiosks.
Recommended
Capacitive Touch User Interface
The ATSAML10E16A-MF's enhanced Peripheral Touch Controller supports up to several hundred touch channels with hardware-driven scanning, supporting buttons, sliders, wheels, and proximity sensors for kitchen appliances, industrial HMIs, and consumer electronics. The PTC wake-on-touch capability keeps the CPU asleep until a real user interaction occurs, with the MCU drawing under 100 nA in this state. The small 32-pin VQFN package fits beneath the touch PCB, leaving front-panel area dedicated to the capacitive sensor pattern.
Recommended
Industrial Sensor / Factory Automation Module
The ATSAML10E16A-MF's 125C temperature range and Cortex-M23 deterministic interrupt response make it well-suited to industrial 4-20 mA sensor heads, Modbus nodes, and small PLC I/O modules. The 12-bit ADC with on-chip op-amp can directly condition a bridge or thermistor, while the Event System routes ADC-completion and timer events directly to SERCOM or GPIO without software intervention, reducing CPU wake-ups. The 1.62-3.63 V supply accepts a wide range of 24 V-bus-derived rails after a single buck regulator.
Recommended
Smart Home Hub / Edge Sensor
The ATSAML10E16A-MF integrates Wi-Fi/BLE co-processor-friendly SERCOM channels plus enough Flash to host a Matter, Thread, or Zigbee application layer for smart-home edge nodes. The Cortex-M23 core handles secure boot and OTA firmware update verification in the same 64 KB budget, while the SAM L10's sub-100 nA sleep current keeps battery-backed door, window, and leak sensors alive for years. The 32-pin VQFN footprint simplifies integration into small sensor enclosures.
Recommended
Recommended Products Summary
Engineering reference data for ATSAML10E16A-MF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAML10E15A-MF | ATSAML10E15A-AF | ATSAML11E16A-MF | ATSAML10E15A-MUT | ATSAML10D16A-MFT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 32-pin VQFN (5x5 mm) | 32-pin VQFN (5x5 mm) - same | 32-pin VQFN (5x5 mm) - same | 32-pin VQFN (5x5 mm) - same | 32-pin VQFN (5x5 mm) - same | 32-pin VQFN (5x5 mm) - same |
| Core | Arm Cortex-M23 | Arm Cortex-M23 | Arm Cortex-M23 | Arm Cortex-M23 + TrustZone | Arm Cortex-M23 | Arm Cortex-M23 |
| Maximum CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash | 64 KB | 32 KB | 32 KB | 64 KB | 32 KB | 64 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +105 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C |
| TrustZone | No | No | No | Yes | No | No |
Key Differentiators
- Lowest active-mode current among Cortex-M23 MCUs in this footprint (vs ATSAMD21E16A (Cortex-M0+ family, ~70 uA/MHz))
- On-chip Peripheral Touch Controller eliminates external touch IC (vs General-purpose Cortex-M0+ MCUs requiring external AT42QT1010)
- On-chip ISO/IEC 7816 smart-card interface (vs MCUs that need an external TDA8026 or similar bridge)
Design Notes
Estimated: VDDIO and VDDANA must be tied to a single common rail per the SAM L10/L11 datasheet, which simplifies the power tree but requires that any analog references operate from the same rail. Place a 1 uF + 100 nF decoupling pair within 2 mm of each VDDIO and VDDANA pin, and add a bulk 10 uF capacitor at the regulator output. For sleep-mode designs, configure the SUPC.SLPDPDS register before issuing WFI to enter the deepest standby.
At 25 uA/MHz active and 32 MHz peak clock, the steady-state Active-mode supply current is approximately 0.8 mA, and the MCU self-heating at 1.62 V with 32 MHz clock is well below thermal limits. In enclosed wearable or IoT housings with no airflow, however, ensure the enclosure does not exceed the 125 C junction limit if the device runs at full load in ambient above 85 C.
Route SWDIO and SWCLK as short impedance-controlled traces (typically 50 ohm) to a 10-pin Cortex Debug header. Keep the 32.768 kHz crystal traces short and surrounded by a ground guard ring to avoid coupling from noisy digital lines. Reserve the VQFN-32 center pad (EP) for thermal dissipation and tie it directly to a solid ground pour with at least 4 thermal vias for optimal heat spreading.
Do not leave unused SERCOM pins floating - configure them as outputs driven low or as inputs with the internal pull-up enabled to avoid parasitic current draws. When migrating code from SAM D21 to SAM L10, note that the Event System channel mapping differs - consult the 'Event System' section of the SAM L10/L11 datasheet before re-using example projects verbatim. Finally, the BOD33 (Brown-Out Detector) threshold must be enabled in NVM User Row to avoid undefined behavior on slow-rising supplies.
Compliance Information
RoHS and REACH compliance per Microchip product page; AEC-Q100 qualification not explicitly listed for the consumer-grade ATSAML10E16A-MF variant - the SAM L10 family is offered in -MUT and -AUT suffixes that target automotive AEC-Q100 qualification.
