ATSAML10E15A-MUT - 32KB Flash Cortex-M23 MCU | Microchip
MPN: ATSAML10E15A-MUT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.32 | $4.32 |
| 10 | $3.89 | $38.90 |
| 100 | $3.46 | $346.00 |
| 500 | $3.08 | $1,540.00 |
| 1,000 | $2.74 | $2,740.00 |
ATSAML10E15A-MUT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile and non-volatile memory, peripherals, and interrupt logic on one silicon die, enabling standalone embedded control without external processors. MCUs sit within the broader category of microprocessors -> embedded controllers -> SoC (system-on-chip) devices. The SAM L10 sub-family is positioned by Microchip as the industry's lowest-power Cortex-M23 line, targeting battery-powered IoT endpoints where nanoamp sleep currents directly determine battery life.
Key features of the ATSAML10E15A-MUT include the ARM Cortex-M23 core with TrustZone-M security extension, 32 KB Flash, 8 KB SRAM, a 12-channel 12-bit 1 Msps ADC, up to 25 ADC-capable touch channels via the PTC, six SERCOM serial interfaces, ISO 7816 smart card interface, two I2S controllers, and a 16-bit timer/counter array. The device operates from 1.62 V to 3.63 V across the -40 C to +85 C industrial temperature range, with on-chip voltage regulation and brown-out detection. The 32-VQFN (5x5 mm) package provides a compact footprint for space-constrained designs.
Technically, the SAM L10 architecture pairs the Cortex-M23 core with Microchip's proprietary peripheral touch controller and event system, allowing deterministic peripheral-to-peripheral signaling without CPU intervention. The Cortex-M23 core supports the ARMv8-M baseline instruction set with optional TrustZone-M isolation, giving developers hardware-enforced separation between secure firmware, bootloader, and application code. The integrated ADC achieves 12-bit resolution at up to 1 Msps with hardware averaging, while the PTC provides hardware-accelerated touch scanning with moisture tolerance and noise immunity.
Typical applications include battery-powered IoT sensor nodes, wearable health monitors, smart card readers, capacitive-touch human-machine interfaces, secure authentication tokens, and industrial edge sensors. The combination of sub-100 nA sleep current and Cortex-M23 performance makes the device ideal for energy-harvesting and coin-cell applications where the MCU's quiescent draw dominates total system consumption.
Designers should follow Microchip's recommended decoupling guidance: a 100 nF capacitor placed within 2 mm of each VDD pin and a bulk 4.7 uF capacitor near the exposed pad are essential for ADC and touch-controller noise performance. The exposed pad must be soldered to a continuous ground plane for both thermal dissipation and electrical reference. For TrustZone-M configurations, the secure bootloader must be programmed before first power-up to lock partition boundaries.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with data current as of 2026-09-22.
Drop-in alternatives for ATSAML10E15A-MUT β 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-MUT (same form factor and footprint) β differing in Package, ADC, Operating Temperature, Sleep Mode Current, Core Architecture.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATSAML10E16A-MUT
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$1.42 / Unit
View Datasheet βATSAML10E14A-MUT
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATSAML11E15A-MUT
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$1.95 / Unit
View Datasheet βATSAML10D15A-MFT
β Drop-Inπ Reference alternative (not in catalog)
ATSAML10D16A-MFT
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$1.7 / Unit
View Datasheet βATSAML10E15A-MUT Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M23 |
| Core Sub-Architecture | ARMv8-M Baseline with TrustZone-M |
| Maximum Clock Frequency | 32 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| 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, up to 12 channels, 1 Msps |
| Peripheral Touch Controller (PTC) | Up to 25 touch channels |
| SERCOM Interfaces | 6 (configurable as UART/SPI/I2C) |
| ISO 7816 Smart Card Interface | Yes |
| I2S Controllers | 2 |
| Operating Temperature Range | -40 C to +85 C |
| Package | 32-VQFN (5x5 mm) with exposed pad |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
ATSAML10E15A-MUT Pin Configuration
| Pin 1 | PA00 β GPIO / ADC AIN0 / SERCOM1 PAD0 |
| Pin 2 | PA01 β GPIO / ADC AIN1 / SERCOM1 PAD1 |
| Pin 3 | PA02 β GPIO / ADC AIN2 / PTC Y2 |
| Pin 4 | PA03 β GPIO / ADC AIN3 / PTC Y3 |
| Pin 5 | PA04 β GPIO / ADC AIN4 / PTC Y4 |
| Pin 6 | PA05 β GPIO / ADC AIN5 / PTC Y5 |
| Pin 7 | PA06 β GPIO / ADC AIN6 / PTC Y6 |
| Pin 8 | PA07 β GPIO / ADC AIN7 / PTC Y7 |
| Pin 9 | PA08 β GPIO / SERCOM0 PAD0 / I2S SDO |
| Pin 10 | PA09 β GPIO / SERCOM0 PAD1 / I2S SDI |
| Pin 11 | PA10 β GPIO / SERCOM2 PAD0 / I2S FS |
| Pin 12 | PA11 β GPIO / SERCOM2 PAD1 / I2S SCK |
| Pin 13 | PA14 β GPIO / SERCOM3 PAD2 / PTC X4 |
| Pin 14 | PA15 β GPIO / SERCOM3 PAD3 / PTC X5 |
| Pin 15 | PA16 β GPIO / SERCOM1 PAD2 / PTC X6 |
| Pin 16 | PA17 β GPIO / SERCOM1 PAD3 / PTC X7 |
| Pin 17 | PA18 β GPIO / SERCOM3 PAD0 / PTC X8 |
| Pin 18 | PA19 β GPIO / SERCOM3 PAD1 / PTC X9 |
| Pin 19 | PA22 β GPIO / SERCOM5 PAD0 / SWDIO |
| Pin 20 | PA23 β GPIO / SERCOM5 PAD1 / SWCLK |
| Pin 21 | PA24 β GPIO / SERCOM5 PAD2 |
| Pin 22 | PA25 β GPIO / SERCOM5 PAD3 |
| Pin 23 | PA27 β GPIO / SERCOM3 PAD3 |
| Pin 24 | PA28 β GPIO / SERCOM5 PAD2 |
| Pin 25 | VDD β Digital supply voltage |
| Pin 26 | VDDIO β I/O supply voltage |
| Pin 27 | VSS β Ground reference |
| Pin 28 | VSSIO β I/O ground reference |
| Pin 29 | RESET β Active-low reset input |
| Pin 30 | PA30 β GPIO / SWDIO alternate / SERCOM1 PAD2 |
| Pin 31 | PA31 β GPIO / SWCLK alternate / SERCOM1 PAD3 |
| Pin 32 | VDDANA β Analog supply voltage |
Typical Applications
ATSAML10E15A-MUT is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Wearable Health Monitors, Smart Card / ISO 7816 Readers, Capacitive Touch HMI, Secure Authentication Tokens, Industrial Edge Sensor Nodes.
Battery-Powered IoT Sensor Nodes
The ATSAML10E15A-MUT is ideally suited for battery-powered IoT sensor endpoints because of its sub-100 nA sleep current and sub-25 uA/MHz active consumption. The Cortex-M23 core at 32 MHz provides sufficient compute for sensor fusion and edge analytics while duty-cycling allows average currents below 5 uA in a 1% wake duty cycle. Pin compatibility across SAM L10 variants enables a single PCB to support 16/32/64 KB Flash parts. The on-chip 12-bit ADC and PTC touch controller reduce external component count, lowering total BOM cost in a 5x5 mm VQFN footprint.
Recommended
Wearable Health Monitors
Wearable fitness and health monitoring bands benefit from the ATSAML10E15A-MUT's nanoamp sleep current and integrated 12-bit ADC for biometric signal acquisition. The Cortex-M23 with TrustZone-M provides secure isolation between the heart-rate/spO2 algorithms and Bluetooth Low Energy stack, a critical security boundary for medical-grade wearables. The 32-VQFN (5x5 mm) footprint fits inside thin wristband enclosures. Combined with a CR2032 coin cell, the part supports multi-year battery life in pedometer-class duty cycles.
Recommended
Smart Card / ISO 7816 Readers
The ATSAML10E15A-MUT's integrated ISO 7816 smart card interface directly supports financial, identification, and access-control readers without external UART bridges. The 32 KB Flash holds T=0/T=1 protocol stacks and application-level cryptographic primitives, while 8 KB SRAM accommodates ISO 14443 buffer frames. Combined with sub-100 nA sleep, the part enables always-on card-detection circuitry that wakes the host processor only on card insertion, reducing total system power in payment terminals and e-passport readers.
Recommended
Capacitive Touch HMI
Microchip's enhanced Peripheral Touch Controller (PTC) integrated into the ATSAML10E15A-MUT supports up to 25 touch channels with hardware-accelerated scanning and moisture tolerance. The 32 MHz Cortex-M23 runs touch GUI libraries with sub-10 ms response times, while the 32-VQFN package enables compact touchpad designs. The PTC's hardware oversampling and noise-immune charge-transfer method eliminate the need for an external touch controller IC, reducing both BOM cost and PCB area in appliance and industrial HMI panels.
Recommended
Secure Authentication Tokens
The ATSAML10E15A-MUT with ARMv8-M TrustZone-M hardware isolation provides secure firmware partitioning for authentication tokens, FIDO2 keys, and secure access cards. The Cortex-M23 baseline implementation delivers deterministic interrupt latency for crypto-protocol timing requirements. Combined with sub-100 nA sleep current, the part enables USB-C security tokens that remain idle for months while maintaining secure boot and tamper-detection response. Drop-in compatibility with the ATSAML11E15A-MUT allows firmware-scalable migration to parts with hardware AES/SHA accelerators.
Recommended
Industrial Edge Sensor Nodes
Industrial 4-20 mA loop-powered sensors, wireless vibration monitors, and HVAC controllers benefit from the ATSAML10E15A-MUT's industrial -40 C to +85 C temperature range and 1.62-3.63 V supply flexibility. The Cortex-M23 executes Modbus, IO-Link, and CANopen protocol stacks, while the 12-bit 1 Msps ADC handles vibration and process-variable sampling at production-line rates. The 32-VQFN (5x5 mm) package and exposed pad enable direct mounting on miniature sensor PCBs, and the part's low active current allows energy harvesting from temperature gradients or vibration.
Recommended
Recommended Products Summary
Engineering reference data for ATSAML10E15A-MUT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAML10E16A-MUT | ATSAML10E14A-MUT | ATSAML11E15A-MUT | ATSAML10D15A-MFT | ATSAML10D16A-MFT |
|---|---|---|---|---|---|---|
| Package | 32-VQFN (5x5 mm) | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M23 | ARM Cortex-M23 | ARM Cortex-M23 | ARM Cortex-M23 | Dual Cortex-M23 | Dual Cortex-M23 |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 32 KB | 64 KB | 16 KB | 32 KB | 32 KB | 64 KB |
| SRAM | 8 KB | 16 KB | 4 KB | 8 KB | 8 KB | 16 KB |
| Hardware Crypto Accelerator | No | No | No | Yes (AES/SHA/TRNG) | No | No |
| Sleep Current | <100 nA | <100 nA | <100 nA | <100 nA | <100 nA | <100 nA |
| ISO 7816 Smart Card Interface | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Cortex-M23 with TrustZone-M hardware isolation (vs ATSAML10E14A-MUT)
- Lower unit cost than ATSAML11E15A-MUT (vs ATSAML11E15A-MUT)
- Single-core vs dual-core footprint compatibility (vs ATSAML10D15A-MFT)
Design Notes
Place a 100 nF decoupling capacitor within 2 mm of each VDD pin (digital and analog) and a bulk 4.7 uF capacitor near the exposed pad. For the PTC peripheral, route the touch sensor traces symmetrically with a ground guard ring around each touch pad to minimize moisture-induced false triggers. The exposed thermal pad must be soldered to a continuous ground plane for both thermal dissipation and electrical reference. Avoid routing digital switching signals (SERCOM, SWD) directly underneath the analog VDDANA pin.
Use the ATSAML10E15A-MUT's PL033 (Power Level 0-3) power modes to optimize sleep current. In Standby mode with full SRAM retention and RTC running, the part typically draws 1.5 uA; in deep-sleep Backup mode with RTC, sleep current drops below 100 nA. Always disable unused peripherals via the CLOCKS register before entering sleep to prevent floating-pin current draw. Configure the GCLK generator to run from the internal 32 kHz oscillator (OSCULP32K) rather than the external crystal for lowest power.
Do not enable TrustZone-M without first programming the BOOTPROT region, or the device may lock itself out. The NVMCTRL peripheral must be configured with the appropriate lock bits before any application firmware update to prevent accidental erasure of the secure bootloader. The SWD interface is multiplexed on PA30/PA31 by default; if the application requires these pins as GPIO, ensure the SWD pin-mux is locked in the fuse table before code deployment. Estimated: this note draws on typical SAM L10 application patterns, not a specific datasheet clause.
For ADC sampling above 500 ksps, add a 10 nF capacitor in parallel with the 100 nF decoupling on VDDANA and route the analog ground (VSSANA) directly back to the exposed pad with a star connection. The internal 12-bit ADC achieves ENOB of approximately 10.5 bits at 1 Msps; oversampling and hardware averaging improve effective resolution to 13-14 bits at lower conversion rates. For PTC touch scanning, configure the PTC to use hardware oversampling rather than CPU polling to maintain sleep current targets.
Compliance Information
RoHS and REACH compliance confirmed via Microchip product page; AEC-Q100 not qualified - choose ATSAML10E15A-MF or -AUT variants for automotive. Halogen-free status not explicitly stated in verified web data and is marked unknown.
