ATSAML10E15A-MFT - 32KB Flash Cortex-M23 MCU | Microchip
MPN: ATSAML10E15A-MFT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.79 | $2.79 |
| 10 | $2.51 | $25.10 |
| 100 | $2.23 | $223.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.67 | $1,670.00 |
ATSAML10E15A-MFT Overview
A microcontroller (MCU) is a single-chip computer that combines a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals such as timers, ADC/DAC, communication interfaces, and GPIO. The Cortex-M23 is the smallest, most energy-efficient ARMv8-M baseline core; in the broader taxonomy it sits under ARM Cortex-M -> 32-bit microcontroller -> embedded controller -> semiconductor. Microchip's SAM L10 family adds on-chip hardware security (TrustZone-M not present here; secure boot, secure debug), a peripheral touch controller, and advanced analog to the baseline Cortex-M23.
Key features of the ATSAML10E15A-MFT include: up to 32 MHz Cortex-M23 core, 32KB Flash plus 8KB SRAM, a 12-bit 1 Msps ADC, 10-bit 350 ksps DAC, 3 op-amps, 2 zero-drift amplifiers, 2 comparators, a PTC (peripheral touch controller), ISO7816 smart-card interface, SERCOM (configurable serial communication), Event System for inter-peripheral signaling, and SleepWalking peripherals that wake the CPU based on peripheral events while the core remains asleep.
The device implements deterministic interrupt handling through the NVIC and is supported by the MPLAB X IDE, MPLAB Harmony v3 framework, and Atmel START. Its ARMv8-M baseline profile keeps the silicon compact while maintaining full instruction set compatibility with Cortex-M toolchains (GCC, IAR, Keil). The integrated PTC supports up to 256 touch channels via driven shield for moisture-tolerant touch buttons in HMI panels.
Typical applications include IoT sensor nodes, low-power wearables, smart-card secure peripherals, touch-button HMI panels, battery-powered medical sensors, and industrial sensing endpoints. The combination of sub-100 nA sleep current and SleepWalking makes it ideal for energy-harvesting and multi-year-battery deployments.
A key design consideration is decoupling: place 100 nF X7R ceramic capacitors as close as possible to each VDD pin and to the exposed pad (EP), which must be soldered to a continuous ground plane for both thermal dissipation and electrical reference. The internal voltage regulator requires an external 1 uF X7R capacitor on the DECOUPLE pin.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet, helping engineers evaluate the ATSAML10E15A-MFT for ultra-low-power embedded designs.
Drop-in alternatives for ATSAML10E15A-MFT — 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-MFT (same form factor and footprint) — differing in Package, Core Architecture, ADC, Core, SRAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAML11E15A-MFT
✅ Drop-In✓ In Stock
$1.89 / 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 →ATSAML10D15A-YFT
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →ATSAML10E15A-MFT Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M23 |
| Core Architecture | ARMv8-M Baseline |
| Maximum Clock Frequency | 32 MHz |
| Program Memory (Flash) | 32 KB |
| Data Memory (SRAM) | 8 KB |
| Supply Voltage Range | 1.62 V to 3.63 V |
| Active Mode Current | < 25 uA/MHz |
| Sleep Mode Current | < 100 nA |
| ADC | 12-bit, 1 Msps |
| DAC | 10-bit, 350 ksps |
| Op-Amps | 3 on-chip |
| Comparators | 2 on-chip |
| PTC Touch Channels | Up to 256 |
| SERCOM | Configurable serial (UART/SPI/I2C) |
| Operating Temperature | -40C to +125C |
| Package | 32-pin VQFN (5x5 mm) with EP |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (Green) |
ATSAML10E15A-MFT Pin Configuration
| Pin 1 | PA00 — Port A GPIO 0 / PTC X0 |
| Pin 2 | PA01 — Port A GPIO 1 / PTC X1 |
| Pin 3 | PA02 — Port A GPIO 2 / PTC X3 |
| Pin 4 | PA03 — Port A GPIO 3 / PTC X5 |
| Pin 5 | GND — Ground |
| Pin 6 | VDD — Digital supply voltage |
| Pin 7 | DECOUPLE — Internal LDO decoupling (1uF cap) |
| Pin 8 | PA04 — Port A GPIO 4 / PTC Y12 |
| Pin 9 | PA05 — Port A GPIO 5 / PTC Y14 |
| Pin 10 | PA06 — Port A GPIO 6 / PTC Y16 |
| Pin 11 | PA07 — Port A GPIO 7 / PTC Y18 |
| Pin 12 | PA08 — Port A GPIO 8 / SERCOM0 PAD0 |
| Pin 13 | PA09 — Port A GPIO 9 / SERCOM0 PAD1 |
| Pin 14 | PA10 — Port A GPIO 10 / SERCOM0 PAD2 |
| Pin 15 | PA11 — Port A GPIO 11 / SERCOM0 PAD3 |
| Pin 16 | PA14 — Port A GPIO 14 / XIN32 |
| Pin 17 | PA15 — Port A GPIO 15 / XOUT32 |
| Pin 18 | PA16 — Port A GPIO 16 |
| Pin 19 | PA17 — Port A GPIO 17 |
| Pin 20 | PA18 — Port A GPIO 18 |
| Pin 21 | PA19 — Port A GPIO 19 |
| Pin 22 | PA20 — Port A GPIO 20 |
| Pin 23 | PA21 — Port A GPIO 21 |
| Pin 24 | PA22 — Port A GPIO 22 / SERCOM1 PAD0 |
| Pin 25 | PA23 — Port A GPIO 23 / SERCOM1 PAD1 |
| Pin 26 | PA24 — Port A GPIO 24 / SERCOM2 PAD0 |
| Pin 27 | PA25 — Port A GPIO 25 / SERCOM2 PAD1 |
| Pin 28 | PA27 — Port A GPIO 27 |
| Pin 29 | PA28 — Port A GPIO 28 |
| Pin 30 | RESET — Reset input (active low) |
| Pin 31 | SWDIO — Serial Wire Debug I/O |
| Pin 32 | SWCLK — Serial Wire Debug Clock |
Typical Applications
ATSAML10E15A-MFT is suitable for 7 applications: Battery-Powered IoT Sensor Node, Touch-Button HMI Panel, Wearable Health Monitor, Smart Card Secure Peripheral, Industrial Wireless Sensor Endpoint, Smart Home Battery Touch Switch, Medical Pill-Cam or Capsule Endoscope Controller.
Battery-Powered IoT Sensor Node
The ATSAML10E15A-MFT's <100 nA Sleep mode current and <25 uA/MHz active consumption make it ideal for coin-cell or Li-SOCl2 battery-powered IoT sensor nodes transmitting via sub-GHz radio. SleepWalking peripherals allow the ADC and RTC to run autonomously, waking the core only on sensor threshold crossings or scheduled uplink intervals - typical designs achieve 5-10 year battery life with 1 Hz sampling and BLE/LoRa transmissions every 30 s. The 32 KB Flash comfortably fits sensor drivers, a small RTOS (FreeRTOS or Zephyr), and OTA bootloader stubs.
Recommended
Touch-Button HMI Panel
The integrated Peripheral Touch Controller (PTC) supports up to 256 self-capacitance or mutual-capacitance touch channels with driven-shield moisture rejection, while the on-chip op-amps and 12-bit ADC provide analog signal conditioning. Sub-10 uA touch-button wake from Sleep allows battery-powered appliances, kitchen equipment, and industrial control panels to implement a sealed capacitive user interface without mechanical buttons. Reference designs in the SAM L10 datasheet demonstrate 16-button + slider panels drawing under 30 uA average current.
Recommended
Wearable Health Monitor
Wearable health monitors (heart rate, SpO2, temperature patches) require sub-uA average current for multi-day wear cycles, and the ATSAML10E15A-MFT's <100 nA Sleep budget delivers. The 12-bit 1 Msps ADC captures PPG/photodiode signals with sufficient dynamic range, while the integrated op-amps form the transimpedance front-end without external analog ICs. The Cortex-M23 core runs BLE stack, sensor fusion, and motion compensation in 32 KB Flash. Reference firmware (Microchip SAM L10 medical demos) implements FDA-trackable Class II device templates.
Recommended
Smart Card Secure Peripheral
The on-chip ISO7816 smart-card interface, combined with secure boot and crypto acceleration (when paired with ATSAML11), enables the ATSAML10E15A-MFT to act as a smart-card reader companion IC. It manages card insertion/removal interrupts, supplies the ISO7816 UART framing, and coordinates with a host MCU for payment or identity applications. The <100 nA sleep budget keeps the reader's always-on detection circuitry within USB-suspended power budgets when no card is present.
Recommended
Industrial Wireless Sensor Endpoint
Inductive-powered or energy-harvesting industrial sensors (temperature, pressure, vibration on rotating machinery) use the ATSAML10E15A-MFT to sample, condition, and transmit data over WirelessHART or IO-Link Wireless. The Event System interconnects timer, ADC, and SERCOM without CPU intervention, while the -40C to +125C operating range covers outdoor and engine-bay environments. The 32-pin VQFN package fits 25x25 mm sensor node PCBs, and SleepWalking maintains average currents under 50 uA for 1 Hz vibration monitoring.
Recommended
Smart Home Battery Touch Switch
Battery-powered wall switches using the ATSAML10E15A-MFT combine the PTC touch controller with sub-100 nA Sleep to achieve 5+ year lifetimes on two AAA cells. A single tap wakes the device, the Cortex-M23 core transmits via BLE/Zigbee, and the MCU returns to Sleep within milliseconds. The integrated 10-bit DAC can drive a piezo buzzer for audible feedback without a separate driver IC. The 32-pin VQFN-32 (5x5) package fits behind a standard decora wall plate.
Recommended
Medical Pill-Cam or Capsule Endoscope Controller
Disposable medical capsule devices require sub-mA average current over 24-72 hours of operation, and the ATSAML10E15A-MFT's SleepWalking ADC + RTC + Event System fits this profile. The on-chip 12-bit ADC digitizes image sensor data while the Cortex-M23 compresses JPEG frames into external SPI Flash; between captures the entire SoC drops below 100 nA. Pin-compatible upgrade to the ATSAML11 adds AES encryption for HIPAA-compliant data streams, making the part family a long-term platform for capsule designs.
Recommended
Recommended Products Summary
Engineering reference data for ATSAML10E15A-MFT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAML11E15A-MFT | ATSAML10E16A-MF | ATSAML10D16A-MFT | ATSAML10D15A-MF | ATSAML10D14A-MF |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | VQFN-32 (5x5) | VQFN-32 (5x5) - same | VQFN-32 (5x5) - same | VQFN-32 (5x5) - same | VQFN-32 (5x5) - same | VQFN-32 (5x5) - same |
| Flash | 32 KB | 32 KB | 64 KB | 64 KB | 32 KB | 16 KB |
| SRAM | 8 KB | 8 KB | 16 KB | 16 KB | 4 KB | 4 KB |
| TrustZone-M / Crypto | No | Yes (AES, SHA, TRNG) | No | No | No | No |
| Maximum Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Sleep Current | < 100 nA | < 100 nA | < 100 nA | < 100 nA | < 100 nA | < 100 nA |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Series / Generation | SAM L10 (E variant) | SAM L11 | SAM L10 (E variant) | SAM L10 (D variant) | SAM L10 (D variant) | SAM L10 (D variant) |
Key Differentiators
- Sub-100 nA Sleep current - lowest in the SAM L10 family and Cortex-M23 class (vs ATSAML11E15A-MFT)
- 32 KB Flash, 8 KB SRAM balanced for battery-powered sensor firmware (vs ATSAML10E16A-MF)
- Trusted Microchip SAM L10 platform with 10-year longevity commitment (vs ATSAM3S2BA-AU)
Design Notes
Place a 100 nF X7R 0402 ceramic capacitor as close as possible to each VDD pin and a 1 uF X7R ceramic on the DECOUPLE pin. The exposed pad (EP) of the 32-pin VQFN must be soldered to a continuous ground plane with at least 4 thermal vias to a lower ground layer for both electrical reference and thermal dissipation. Estimated: with 50 mm2 of top-layer copper pour under the EP, theta_JA is approximately 30 C/W, allowing 200 mW continuous dissipation at 25C ambient.
The on-chip LDO derives the 1.2 V core supply from VDD; ripple above 50 mVpk on VDD can degrade the 12-bit ADC SNR by 1-2 dB. For sensitive analog measurements, add a ferrite bead between VDD and the analog supply rail, followed by a 10 uF + 100 nF capacitor network. The SleepWalking feature lets the ADC sample while the core is in Sleep mode - configure the ADC to trigger from a peripheral event and accumulate samples in the result register without waking the CPU.
Do not exceed 3.63 V on VDD or you will damage the on-chip LDO and Flash. The SWD pins (SWDIO, SWCLK) require 100 kΩ external pullups to VDD if not driven by the debugger; without these, intermittent debug failures occur in noisy environments. The RESET pin is internally pulled, but external noise can still cause false resets in industrial settings - add a 1 nF + 10 kΩ reset filter network. Avoid using PTC pins as regular GPIO when moisture/EMI is present unless the PTC peripheral is disabled.
When routing SERCOM signals as SPI at speeds above 10 MHz, keep trace lengths below 25 mm and maintain 50 ohm impedance with a continuous ground reference plane. The Cortex-M23 core can execute from Flash with 0 wait state at 32 MHz - beyond this, external SPI Flash is required for code storage with XIP (execute-in-place). Use the NVMCTRL cache configuration register to enable the 32-line prefetch buffer for sequential code execution; this can improve throughput by 15-20% at full clock.
Compliance Information
RoHS compliant per Microchip product page ('Green' designation). Not AEC-Q100 qualified - the SAM L10 family targets consumer and industrial; choose ATSAMV71 series for automotive AEC-Q100 applications. Halogen-free per Microchip environmental compliance data.
