ATSAML10E15A-MF - 32KB Flash Cortex-M23 MCU | Microchip SAM L10
MPN: ATSAML10E15A-MF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.61 | $26.10 |
| 100 | $2.32 | $232.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.82 | $1,820.00 |
ATSAML10E15A-MF Overview
What is a microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU core, volatile memory (RAM), non-volatile memory (Flash), and a set of peripherals (GPIO, ADC, timers, communication interfaces). The ARM Cortex-M23 is a 32-bit microcontroller core implementing the Armv8-M baseline architecture, designed for energy-efficient embedded applications. MCUs sit at the heart of nearly every electronic product, forming the control layer beneath power management ICs, sensors, and connectivity modules.
Key features of the ATSAML10E15A-MF include an enhanced peripheral touch controller for capacitive touch buttons, a 12-bit analog-to-digital converter with up to 20 channels, an ISO7816 smart card interface, an event system for hardware-triggered peripheral-to-peripheral signaling, and a SERCOM (Serial Communication Interface) that can be configured as UART, SPI, or I2C. The Cortex-M23 core includes a single-cycle hardware multiplier and the Armv8-M baseline instruction set with TrustZone-ready architecture (the SAM L11 family activates TrustZone; the L10 family does not).
Architecturally, the SAM L10 uses a low-leakage process and a tightly integrated analog and digital block design, enabling the sub-25 uA/MHz active figure and sub-100 nA sleep figure. The device supports Sleep, Standby, Backup, and Off modes selectable through the Power Manager, allowing designers to optimize wake-up latency against quiescent current.
Typical applications include low-power IoT sensor nodes, capacitive touch user interfaces, smart card and secure element interfaces, battery-powered home automation devices, wearable health and fitness accessories, and industrial sensor transmitters. The combination of low active current, deep-sleep sub-100 nA standby, and integrated peripherals lets designers run the MCU directly from small coin cells or harvested energy for years.
When designing with this MCU, prioritize decoupling with 100 nF and 1 uF ceramics close to each VDD pin, route the exposed pad (EP) to a contiguous ground pour for thermal and noise reasons, and verify the IOVDD/VDDANA sequencing constraint noted in the datasheet. The internal 32 kHz oscillator and the available software-calibrated 32 MHz DFLL are usable without external crystals for cost-sensitive designs.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on any single distributor or manufacturer page.
Drop-in alternatives for ATSAML10E15A-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 ATSAML10E15A-MF (same form factor and footprint) — differing in Package, ADC, SRAM, Core, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAML10E15A-AU
✅ Drop-In✓ In Stock
$1.92 / Unit
View Datasheet →ATSAML10E15A-AF
✅ Drop-In✓ In Stock
$1.15 / Unit
View Datasheet →ATSAML10E16A-MF
✅ Drop-In✓ In Stock
$2.21 / Unit
View Datasheet →ATSAML10D16A-MFT
✅ Drop-In✓ In Stock
$1.7 / Unit
View Datasheet →ATSAML10D15A-MF
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →ATSAML10D14A-MF
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →ATSAML11E15A-MF
✅ Drop-In📋 Reference alternative (not in catalog)
ATSAML10E15A-MF Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M23 (Armv8-M baseline) |
| Core Architecture | 32-bit RISC |
| Maximum CPU Clock | 32 MHz |
| Flash Memory | 32 KB (32K x 8) |
| SRAM | 8 KB |
| Operating Voltage Range | 1.62 V to 3.63 V |
| Active Current | < 25 uA/MHz |
| Sleep Current | < 100 nA |
| Operating Temperature Range | -40 C to +125 C (industrial / 125 Temp) |
| Package | 32-VQFN (5x5 mm) with Exposed Pad |
| Mounting Type | Surface Mount |
| ADC | 12-bit SAR, up to 20 channels (per family datasheet) |
| Peripheral Touch Controller | Yes (PTC, enhanced) |
| Communication Interfaces | SERCOM (configurable UART/SPI/I2C), ISO7816 smart card interface |
| RoHS Status | Compliant |
| Supply Voltage (VDDIO / VDDANA) | Common rail per datasheet |
ATSAML10E15A-MF Pin Configuration
| Pin 1 | PA00 — GPIO / peripheral function (per family datasheet) |
| Pin 2 | PA01 — GPIO / peripheral function |
| Pin 3 | PA02 — GPIO / peripheral function |
| Pin 4 | PA03 — GPIO / peripheral function |
| Pin 5 | PA04 — GPIO / peripheral function |
| Pin 6 | PA05 — GPIO / peripheral function |
| Pin 7 | PA06 — GPIO / peripheral function |
| Pin 8 | PA07 — GPIO / peripheral function |
| Pin 9 | VDDIO — Digital IO supply (per family datasheet) |
| Pin 10 | GND — Ground |
| Pin 11 | PA08 — GPIO / peripheral function |
| Pin 12 | PA09 — GPIO / peripheral function |
| Pin 13 | PA10 — GPIO / peripheral function |
| Pin 14 | PA11 — GPIO / peripheral function |
| Pin 15 | PA14 — GPIO / peripheral function |
| Pin 16 | PA15 — GPIO / peripheral function |
| Pin 17 | PA16 — GPIO / peripheral function |
| Pin 18 | PA17 — GPIO / peripheral function |
| Pin 19 | PA18 — GPIO / peripheral function |
| Pin 20 | PA19 — GPIO / peripheral function |
| Pin 21 | PA20 — GPIO / peripheral function |
| Pin 22 | PA21 — GPIO / peripheral function |
| Pin 23 | PA22 — GPIO / peripheral function |
| Pin 24 | PA23 — GPIO / peripheral function |
| Pin 25 | PA24 — GPIO / peripheral function |
| Pin 26 | PA25 — GPIO / peripheral function |
| Pin 27 | PA27 — GPIO / peripheral function |
| Pin 28 | PA28 — GPIO / peripheral function |
| Pin 29 | VDDANA — Analog supply (per family datasheet) |
| Pin 30 | GND — Ground |
| Pin 31 | RESET — Reset input (per family datasheet) |
| Pin 32 | SWCLK — Serial Wire Debug clock (per family datasheet) |
Typical Applications
ATSAML10E15A-MF is suitable for 7 applications: Battery-Powered IoT Sensor Node, Capacitive Touch User Interface, Smart Card Reader Interface (ISO7816), Wearable Health and Fitness Band, Industrial Sensor Transmitter (4-20 mA / WirelessHART), Smart Home Sensor Hub (Zigbee / Thread / Matter-ready), Home Appliance Control Board.
Battery-Powered IoT Sensor Node
The ATSAML10E15A-MF fits battery-powered IoT sensor nodes because of its <25 uA/MHz active current and <100 nA sleep current. In a typical deployment the MCU wakes from sleep on a sensor interrupt, takes a 12-bit ADC reading via the integrated SAR ADC, transmits via SERCOM (UART/SPI/I2C) to a sub-GHz or BLE companion IC, and returns to sleep. At one wake per minute with 1 ms active time, average current stays in the single-digit uA range, enabling multi-year life on a CR2032 coin cell. Compared with Cortex-M0+ alternatives, the Cortex-M23 ARMv8-M core delivers higher code density and faster wake-to-transmit cycles.
Recommended
Capacitive Touch User Interface
The ATSAML10E15A-MF is optimized for capacitive touch user interfaces thanks to its integrated Peripheral Touch Controller (PTC). The PTC supports mutual-capacitance and self-capacitance touch sensing on up to 20 channels, enabling buttons, sliders, and proximity sensors without external touch ICs. The MCU's <100 nA sleep current lets the touch subsystem scan periodically while preserving battery life. Pair the device with a low-leakage LDO and a simple PCB touch pattern; the family datasheet provides reference layouts for waterproof touch panels common in appliances and IoT devices.
Recommended
Smart Card Reader Interface (ISO7816)
The ATSAML10E15A-MF integrates an ISO7816 smart card interface, making it suitable for payment terminals, e-Government ID readers, and SIM-card reader accessories. The Cortex-M23 core handles ISO7816 T=0/T=1 protocol stack while the SERCOM blocks handle the host-side UART. The 32 KB Flash and 8 KB SRAM are sufficient for embedded TLS stacks and application firmware; the <100 nA sleep current allows card-present detection without draining the host battery. Per the family datasheet, the smart card IO pads include internal pull-ups and 5 V-tolerant options, reducing external component count.
Recommended
Wearable Health and Fitness Band
The ATSAML10E15A-MF fits wearable health and fitness bands because of its small 32-VQFN (5x5 mm) footprint and low active/sleep currents. The MCU aggregates optical heart-rate sensor, accelerometer, and temperature data via SERCOM (I2C/SPI), stores samples in 8 KB SRAM, and updates a BLE companion radio on event. Sleep current under 100 nA between sensor reads preserves multi-day battery life; the 12-bit ADC handles battery monitoring and bio-impedance measurements. The exposed-pad 32-VQFN package provides good thermal dissipation in the confined PCB area of a wrist-worn enclosure.
Recommended
Industrial Sensor Transmitter (4-20 mA / WirelessHART)
The ATSAML10E15A-MF operates from -40 C to +125 C, making it suitable for industrial 4-20 mA loop-powered sensor transmitters and WirelessHART adapters. The MCU digitizes a bridge sensor via its 12-bit ADC, performs linearization in firmware, and outputs the current loop using a PWM-driven passfet or via a wireless radio. The sub-25 uA/MHz active current keeps within the strict 3.5 mA budget of a 4-20 mA loop. The hardware event system enables deterministic ADC-to-DAC triggering without CPU intervention, preserving power for the measurement path.
Recommended
Smart Home Sensor Hub (Zigbee / Thread / Matter-ready)
The ATSAML10E15A-MF is a low-cost host for smart home sensor hubs in Zigbee, Thread, or Matter-ready designs where it acts as the application processor behind a network co-processor. The Cortex-M23 core runs the application logic (PIR motion, temperature, lux), while SERCOM peripherals talk to the radio. The integrated peripheral touch controller allows the same MCU to drive wall-switch touch panels. Sub-100 nA sleep and 1.62 V minimum supply enable direct coin-cell operation for door/window contact sensors reporting years of life on a single battery.
Recommended
Home Appliance Control Board
The ATSAML10E15A-MF is well-suited to home appliance control boards such as washing machines, dishwashers, refrigerators, and induction cooktops where capacitive touch and low standby power are valued. The integrated PTC replaces mechanical buttons with sealed glass touch panels, the 12-bit ADC reads temperature sensors and motor current, and the SERCOM drives the display and Wi-Fi module. The 125 C operating temperature rating and exposed-pad VQFN package survive the thermal environment of an enclosed motor compartment. Below 100 nA standby meets Energy Star and EU Ecodesign standby targets for white goods.
Recommended
Recommended Products Summary
Engineering reference data for ATSAML10E15A-MF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAML10E15A-AU | ATSAML10E16A-MF | ATSAML10D15A-MF | ATSAML11E15A-MF |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 32-VQFN (5x5 mm) | TQFP family (verify suffix) | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same |
| Core | ARM Cortex-M23 | ARM Cortex-M23 | ARM Cortex-M23 | ARM Cortex-M23 | ARM Cortex-M23 |
| Max CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 32 KB | 32 KB | 64 KB | 32 KB | 32 KB |
| SRAM | 8 KB | 8 KB | 16 KB | 4 KB | 8 KB |
| TrustZone (Armv8-M) | No (L10 family) | No (L10 family) | No (L10 family) | No (L10 family) | Yes (L11 family) |
| Operating Voltage | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V |
| Active Current | <25 uA/MHz | <25 uA/MHz | <25 uA/MHz | <25 uA/MHz | <25 uA/MHz |
| Sleep Current | <100 nA | <100 nA | <100 nA | <100 nA | <100 nA |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C |
Key Differentiators
- Lowest-power Cortex-M23 in production (vs ATSAML10E16A-MF)
- Family upgrade path to TrustZone (vs ATSAML11E15A-MF)
- Integrated ISO7816 smart card interface (vs PIC16F877A-I/P)
- Hardware Peripheral Touch Controller (vs ATSAME51J19A-MF)
Design Notes
The SAM L10 datasheet specifies that VDDIO and VDDANA must share the same voltage source; sequencing is not required between them, but the maximum supply rise and fall rates listed in the Supply Characteristics section must be respected. Use a low-Iq LDO such as Microchip MCP1700 or MCP1810 to keep the system's standby budget under the MCU's <100 nA sleep figure; avoid LDOs with quiescent current > 1 uA. Decouple each VDD pin with 100 nF and 1 uF ceramics placed within 2 mm of the pin.
The 32-VQFN package has an exposed pad (EP) on the bottom that must be soldered to a contiguous ground plane for thermal dissipation and electrical reference. Per the family datasheet, use a 5x5 array of thermal vias (0.3 mm drill, 0.6 mm pitch) under the EP to tie inner ground layers together. Route high-speed signals (SERCOM SPI, SWD) on the top layer with reference ground beneath; keep crystal traces short and surrounded by ground pour for the optional 32.768 kHz crystal.
Do not assume the SAM L10 includes the SAM L11's TrustZone for Armv8-M security extension - it does not. Do not exceed the maximum I/O source/sink current per pin (consult the family Electrical Characteristics chapter). Avoid powering the MCU from a noisy switching regulator directly; use a linear post-regulator or a filtered supply for ADC accuracy. When migrating from ATSAM D20/D21 to L10, verify SERCOM pin mapping because the SERCOM peripheral count and pin assignments differ between families.
For capacitive touch sensing using the integrated PTC, follow the family datasheet touch design guidelines: use a ground ring around each touch button, maintain the recommended trace width to electrode ratio, and add a guard trace driven by a PTC channel for waterproof panels. Per the family datasheet, the PTC can scan up to 20 channels with sub-uA consumption; use the event system to wake the CPU only on touch detection, preserving the <100 nA sleep budget.
Compliance Information
RoHS compliance and lead-free status per Microchip product page. AEC-Q100 not stated in the verified distributor listings; not applicable for general industrial MCU use. Halogen-free status not confirmed in the verified web data.
