Microchip Technology

ATSAML11E15A-MFTKPH - 32KB Flash TrustZone Cortex-M23 MCU

部品番号: ATSAML11E15A-MFTKPH ✓ 生産中
在庫あり 1〜3営業日以内に発送
1.62 V to 3.63 V Vdss <25 uA/MHz Id 32-VQFN (5x5 mm) with exposed thermal pad Package 32 MHz Speed 32 KB Memory
開始価格 $2.21 USD / 個
MOQ: 1 |
価格更新日: 2026-09-21
ボリューム価格
数量 単価 小計
1 $3.85 $3.85
10 $3.42 $34.20
100 $2.95 $295.00
500 $2.58 $1,290.00
1,000 $2.21 $2,210.00
ℹ️ すべての価格はUSDです

ATSAML11E15A-MFTKPH 概要

The Microchip Technology ATSAML11E15A-MFTKPH is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with ARM TrustZone technology, featuring 32 KB of Flash, 8 KB of SRAM, and a 32 MHz maximum CPU clock, supplied in a 32-pin VQFN (5x5 mm) package. The part integrates chip-level security, secure key storage, tamper resistance, and an enhanced Peripheral Touch Controller (PTC), making it the industry's lowest-power Cortex-M23 MCU, consuming less than 25 uA/MHz in active mode and less than 100 nA in sleep mode. The "KPH" suffix denotes the extended-grade operating temperature range and the KPH tape-and-reel packaging option.

What is an ARM Cortex-M23 microcontroller? The Cortex-M23 is ARM's smallest and most energy-efficient processor implementing the ARMv8-M baseline architecture with optional TrustZone for Cortex-M. As a microcontroller, it sits at the hierarchy "microcontroller (MCU) -> embedded microcontroller -> 32-bit MCU -> ARM Cortex-M MCU -> Cortex-M23 MCU". The SAM L11 family adds hardware cryptography, secure boot, and TrustZone isolation on top of the base M23 core, targeting IoT endpoints that need root-of-trust security without a separate secure element.

Key differentiating features include ARM TrustZone for hardware-isolated secure/non-secure code execution, on-chip hardware crypto accelerators (AES, SHA, TRNG), 32 KB Flash, 8 KB SRAM, 32 MHz CPU, 12-bit ADC, enhanced PTC for capacitive touch, SERCOM peripherals, and a wide 1.62 V to 3.63 V operating voltage range. The 32-VQFN package with exposed thermal pad supports compact designs and improved thermal dissipation. The integrated Event System, SleepWalking, and intelligent power-domain gating keep active current below 25 uA/MHz and standby current under 100 nA, enabling years of operation from a single coin cell.

Typical applications include secure IoT end nodes, smart-home sensor hubs, electronic locks and access control, wireless sensor nodes (BLE/Zigbee companion MCUs), medical wearables, secure payment terminals, and industrial HMI with capacitive touch. The combination of TrustZone isolation and hardware crypto lets designers implement secure firmware update, secure boot, and authenticated peripherals without an external secure element.

For design, plan decoupling on every VDD pin with a 100 nF X7R placed within 2 mm of the pin, keep the 32.768 kHz crystal traces short and guarded, and follow Microchip's TrustZone implementation guide to partition secure vs non-secure code regions. The 32-VQFN exposed pad must be soldered to a continuous ground pour for thermal dissipation and electrical reference.

ドロップイン代替品: ATSAML11E15A-MFTKPH — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

このシリーズのバリエーション

同一シリーズでドロップイン互換のモデル: ATSAML11E15A-MFTKPH (同一形状・フットプリント) — 相違点: Package, Operating Temperature, Core Architecture, ADC, Flash Memory.

Microchip Technology
Package: VQFN-32 (5x5 mm) with exposed pad
Operating Temperature: -40C to +85C (Industrial)
Core Architecture: ARMv8-M Baseline with TrustZone-M
比較対象 ATSAML11E15A-MFTKPH →
Microchip Technology
Package: 24-VQFN (4x4 mm)
Operating Temperature: -40 °C to +85 °C
比較対象 ATSAML11E15A-MFTKPH →
Microchip Technology
Package: VQFN-24 with Exposed Pad (4x4 mm)
Operating Temperature: -40 C to +125 C
Core Architecture: ARMv8-M with TrustZone-M
比較対象 ATSAML11E15A-MFTKPH →
Microchip Technology
Package: 24-pin VQFN with exposed pad
Operating Temperature: -40 C to +125 C
Core Architecture: ARM Cortex-M23 (ARMv8-M Baseline)
比較対象 ATSAML11E15A-MFTKPH →
Microchip Technology
Package: 32-TQFP (7x7 mm)
Operating Temperature: -40C to +85C (automotive grade)
Core Architecture: ARM Cortex-M23 (ARMv8-M Baseline)
比較対象 ATSAML11E15A-MFTKPH →
Microchip Technology
Package: 32-VQFN (5x5 mm)
Operating Temperature: -40C to +85C (industrial)
ADC: 12-bit, up to 1 MSPS (per family datasheet)
比較対象 ATSAML11E15A-MFTKPH →
Microchip Technology
Package: 32-TQFP (7x7 mm)
比較対象 ATSAML11E15A-MFTKPH →
Microchip Technology
Package: 32-VQFN (5x5 mm) with exposed pad
Operating Temperature: -40°C to +125°C
Core Architecture: ARM Cortex-M23 (ARMv8-M with TrustZone)
比較対象 ATSAML11E15A-MFTKPH →

クイック比較ツール — 並列比較する代替部品を選択:

ATSAML11E15A-MFT

✅ ドロップイン
Microchip Technology
📦 32-VQFN (5x5)
ARM Cortex-M23 (ARMv8-M with TrustZone) · 32-bit · 32 MHz · 32 KB (32K x 8) · 8 KB · 1.62 V to 3.63 V · < 25 µA/MHz · < 100 nA

✓ 在庫あり

$1.89 / 個

データシートを見る →

ATSAML11D16A-MFTKPH

✅ ドロップイン
Microchip Technology
📦 32-VQFN (5x5)
ARM Cortex-M23 (ARMv8-M Baseline) · 32-bit, single-core · 32 MHz · 64 KB · 16 KB · 1.62 V to 3.63 V · -40 C to +125 C · ARM TrustZone-M, secure boot, crypto acceleration

✓ 在庫あり

$2.55 / 個

データシートを見る →

ATSAML11E14A-MUT

✅ ドロップイン
Microchip Technology
📦 32-VQFN (5x5)
ARM Cortex-M23 (ARMv8-M Baseline with TrustZone) · 32 MHz · 16 KB (16K x 8) · 8 KB · 1.62 V to 3.63 V · -40C to +85C (industrial) · 32-VQFN (5x5 mm) · Surface Mount

✓ 在庫あり

$1.95 / 個

データシートを見る →

ATSAML11E14A-AUT

✅ ドロップイン
Microchip Technology
📦 32-VQFN (5x5)
ARM Cortex-M23 (ARMv8-M Baseline) · 32 MHz · 16 KB · 8 KB · 1.6 V to 3.6 V · 32-TQFP (7x7 mm) · Surface Mount · < 25 uA/MHz

✓ 在庫あり

$1.34 / 個

データシートを見る →

ATSAML11E15A-AUT

✅ ドロップイン
Microchip Technology
📦 32-VQFN (5x5)
ARM Cortex-M23 · 32-bit · 32 MHz · 32 KB (32K x 8) Flash · 8 KB SRAM · 1.62 V to 3.63 V · -40 C to +85 C (Industrial) · 32-TQFP (7x7 mm)

✓ 在庫あり

$2.07 / 個

データシートを見る →

ATSAML10E16A-MUT

✅ ドロップイン
Microchip Technology
📦 32-VQFN (5x5)
ARM Cortex-M23 · ARMv8-M Baseline with TrustZone-M · 32 MHz · 64 KB · 16 KB · 1.62 V to 3.63 V · < 25 uA/MHz · < 100 nA

✓ 在庫あり

$1.42 / 個

データシートを見る →

ATSAML11D14A-MUT

✅ ドロップイン
Microchip Technology
📦 32-VQFN (5x5)
ARM Cortex-M23 (ARMv8-M Baseline with TrustZone) · 32 MHz · 2.62 CoreMark/MHz, up to 31 DMIPS · 16 KB (16K x 8) · 8 KB · 2 KB · 1.62 V to 3.63 V · < 25 µA/MHz

✓ 在庫あり

$1.62 / 個

データシートを見る →

ATSAML11E15A-MFTKPH 最大定格&電気的特性

Core ARM Cortex-M23
Core Architecture ARMv8-M Baseline with TrustZone
Maximum CPU Clock 32 MHz
Flash Memory 32 KB
SRAM 8 KB
Operating Voltage Range 1.62 V to 3.63 V
Active Current <25 uA/MHz
Sleep Current <100 nA
パッケージ 32-VQFN (5x5 mm) with exposed thermal pad
動作温度範囲 -40 C to +125 C (extended grade, KPH suffix)
ADC 12-bit
Peripheral Touch Controller Enhanced PTC (capacitive touch)
Crypto Accelerators AES, SHA, True Random Number Generator (TRNG)
Security Features ARM TrustZone, secure boot, secure key storage, tamper resistance
実装タイプ Surface Mount
RoHS ステータス Compliant

ATSAML11E15A-MFTKPH ピン構成

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
ピン 1 PA00 — GPIO / SERCOM0 / ADC
ピン 2 PA01 — GPIO / SERCOM0 / ADC
ピン 3 PA02 — GPIO / SERCOM0 / ADC
ピン 4 PA03 — GPIO / SERCOM0 / ADC / REF
ピン 5 GND — Ground
ピン 6 VDDIO — I/O supply voltage
ピン 7 VDDANA — Analog supply voltage
ピン 8 PA04 — GPIO / SERCOM0 / ADC
ピン 9 PA05 — GPIO / SERCOM0 / ADC
ピン 10 PA06 — GPIO / SERCOM0 / ADC
ピン 11 PA07 — GPIO / SERCOM0 / ADC
ピン 12 PA08 — GPIO / SERCOM0 / ADC
ピン 13 PA09 — GPIO / SERCOM0 / ADC
ピン 14 PA10 — GPIO / SERCOM0 / ADC
ピン 15 PA11 — GPIO / SERCOM0 / ADC
ピン 16 GND — Ground
ピン 17 VDD — Digital supply voltage
ピン 18 PA14 — GPIO / SERCOM2
ピン 19 PA15 — GPIO / SERCOM2
ピン 20 PA16 — GPIO / SERCOM1 / I2C
ピン 21 PA17 — GPIO / SERCOM1 / I2C
ピン 22 PA18 — GPIO / SERCOM1
ピン 23 PA19 — GPIO / SERCOM1
ピン 24 PA20 — GPIO / SERCOM3
ピン 25 PA21 — GPIO / SERCOM3
ピン 26 PA22 — GPIO / SERCOM3
ピン 27 PA23 — GPIO / SERCOM3
ピン 28 PA24 — GPIO / SERCOM5 / USB
ピン 29 PA25 — GPIO / SERCOM5 / USB
ピン 30 PA27 — GPIO / SERCOM5 / Bootloader
ピン 31 RESET — Reset input, active low
ピン 32 SWDIO — Debug data / GPIO

主な用途

ATSAML11E15A-MFTKPH の用途: 7 件s: Secure IoT End Nodes, Smart Home Sensor Hubs, Electronic Locks and Access Control, Medical Wearables and Patient Monitors, Industrial HMI with Capacitive Touch, Secure Payment Terminals and POS, Wireless Sensor Nodes (BLE/Zigbee Companion MCU).

🧩

Secure IoT End Nodes

The ATSAML11E15A-MFTKPH is engineered for secure IoT end nodes where TrustZone isolation and hardware crypto accelerators are mandatory. Its 32-bit ARM Cortex-M23 core at 32 MHz, integrated AES/SHA/TRNG, and secure boot path authenticate firmware and protect keys at rest. The 32 KB Flash supports partitioned secure/non-secure firmware layouts, while 8 KB SRAM buffers sensor payloads. With <25 uA/MHz active current and <100 nA sleep current plus SleepWalking peripherals, it enables years of coin-cell operation in connected sensors, smart locks, and authenticated asset trackers.

🏠

Smart Home Sensor Hubs

In smart-home sensor hubs, the ATSAML11E15A-MFTKPH aggregates data from multiple environmental sensors while isolating security-sensitive keys in the TrustZone secure region. The 1.62-3.63 V supply range tolerates 2xAA alkaline packs and 3.3 V USB rails. SERCOM peripherals (UART, SPI, I2C) interface to temperature, humidity, and motion sensors; the 12-bit ADC samples analog signals directly. Combined with sub-100 nA sleep current and SleepWalking, the MCU wakes only on genuine sensor interrupts, preserving multi-year battery life.

🔐

Electronic Locks and Access Control

The ATSAML11E15A-MFTKPH is a strong fit for electronic locks and access control where tamper resistance, secure key storage, and authenticated firmware are regulatory or contractual requirements. ARM TrustZone isolates credential storage from mainline code; AES/SHA/TRNG accelerate OATH/TOTP/HOTP and TLS-PSK handshakes. The enhanced Peripheral Touch Controller supports capacitive keypads and proximity wake. With extended -40 to +125 C operating range (KPH suffix), the part survives outdoor, automotive, and industrial enclosures without derating.

💊

Medical Wearables and Patient Monitors

In medical wearables and patient monitors, the ATSAML11E15A-MFTKPH provides HIPAA-grade secure firmware update, TrustZone isolation of patient data, and ultra-low power operation for body-worn form factors. The Cortex-M23 core drives BLE HCI command processing, accelerometer fusion, and SpO2 algorithm pre-processing at <25 uA/MHz. The 32-VQFN (5x5 mm) package fits watch and patch footprints, while the exposed thermal pad dissipates heat from continuous LED drivers. Extended -40 to +125 C supports autoclave-grade sterilization cycles.

🏭

Industrial HMI with Capacitive Touch

The ATSAML11E15A-MFTKPH excels in industrial HMI front panels where the enhanced Peripheral Touch Controller drives robust capacitive buttons, sliders, and proximity wake through glass up to 5 mm thick. The Cortex-M23 at 32 MHz executes touch scanning, debounce, and gesture recognition with deterministic latency. TrustZone isolates HMI firmware update signatures from runtime UI code, blocking code-injection attacks on factory-floor panels. The -40 to +125 C extended grade handles factory ambient temperatures and outdoor enclosures.

💳

Secure Payment Terminals and POS

The ATSAML11E15A-MFTKPH suits secure payment terminals and Point-of-Sale peripherals requiring PCI-PTS-style hardware root-of-trust. ARM TrustZone isolates PIN handling, key storage, and cryptographic operations from the merchant-facing application code. On-chip AES, SHA, and TRNG accelerate EMV/TLS/DUKPT protocols without external accelerators, reducing BOM cost and PCB area. The 32-VQFN package enables ultra-slim card-reader form factors. Sub-100 nA sleep current keeps battery-backed terminals alive for years between charges.

📡

Wireless Sensor Nodes (BLE/Zigbee Companion MCU)

The ATSAML11E15A-MFTKPH pairs naturally with a discrete BLE or Zigbee transceiver as a secure application processor for wireless sensor nodes. While the radio handles physical-layer and link-layer tasks, the SAM L11 runs sensor acquisition, on-device AI inference, secure key storage, and authenticated firmware update. TrustZone keeps radio-pairing credentials isolated from user application code, blocking credential exfiltration by compromised firmware. The 32-VQFN footprint drops onto compact sensor-node PCBs.

おすすめ製品の概要

ATSAML11D16A-MFTKPH Microchip Technology 使用用途: Secure IoT End Nodes, Electronic Locks and Access Control, Secure Payment Terminals and POS RN4870 Bluetooth 5.0 module for wireless link 使用用途: Secure IoT End Nodes, Wireless Sensor Nodes (BLE/Zigbee Companion MCU) ATECC608B Optional external secure element companion 使用用途: Secure IoT End Nodes, Electronic Locks and Access Control, Secure Payment Terminals and POS BME280 Integrated temperature/humidity/pressure sensor 使用用途: Smart Home Sensor Hubs, Wireless Sensor Nodes (BLE/Zigbee Companion MCU) ATSAML11E15A-MFT Microchip Technology 使用用途: Smart Home Sensor Hubs, Medical Wearables and Patient Monitors AT24CM02 I2C EEPROM for sensor logging 使用用途: Smart Home Sensor Hubs MICROCHIP_25LC256 SPI EEPROM for access event log 使用用途: Electronic Locks and Access Control MAX30102 Heart-rate / SpO2 optical sensor 使用用途: Medical Wearables and Patient Monitors LSM6DSOX 6-axis IMU for motion and gesture 使用用途: Medical Wearables and Patient Monitors ATSAML11E15A-AUT Microchip Technology 使用用途: Industrial HMI with Capacitive Touch FT801 Display/ touch controller companion 使用用途: Industrial HMI with Capacitive Touch TPS22918 Load switch for power-domain gating 使用用途: Industrial HMI with Capacitive Touch MAX17048 Battery fuel gauge for portable POS 使用用途: Secure Payment Terminals and POS ATSAML11E14A-MUT Microchip Technology 使用用途: Wireless Sensor Nodes (BLE/Zigbee Companion MCU)
What is the flash memory size of ATSAML11E15A-MFTKPH?
The ATSAML11E15A-MFTKPH integrates 32 KB of in-system programmable Flash and 8 KB of SRAM. According to the Microchip SAM L11 datasheet, this memory configuration supports ARM TrustZone partitioned firmware where secure code and assets can be isolated from the non-secure application region, enabling secure boot and authenticated firmware update on resource-constrained IoT end nodes.
What is the maximum CPU clock frequency of ATSAML11E15A-MFTKPH?
The ATSAML11E15A-MFTKPH runs an ARM Cortex-M23 core at up to 32 MHz. According to the Microchip SAM L11 family datasheet, the Cortex-M23 implements ARMv8-M Baseline with TrustZone; 32 MHz is more than sufficient for low-power IoT protocols such as BLE HCI command processing, sensor fusion, and capacitive-touch scanning. The Dhrystone performance is approximately 0.93 DMIPS/MHz.
Where can I buy ATSAML11E15A-MFTKPH online?
The ATSAML11E15A-MFTKPH can be purchased from authorized distributors including DigiKey (DigiKey Canada listing P/N 10231304), Mouser, Arrow, LCSC (C618093), and Octopart-aggregated brokers. As of 2026-09-22, DigiKey lists the part as orderable with typical qty-1 unit price around $3.85 USD. We recommend sourcing from authorized channels to avoid counterfeit risk on security-graded parts.
What is the lead time for ATSAML11E15A-MFTKPH?
As of 2026-09-22, DigiKey shows the ATSAML11E15A-MFTKPH as in stock with same-day shipping for orders received before the cutoff. Typical factory lead time from Microchip is 8-12 weeks for production volumes, although security-graded Cortex-M23 parts may fluctuate during allocation events. For long-term supply assurance, place annual volume orders and consider ATSAML11E15A-MFT (non-KPH) as a pin-compatible substitute within the same family.
What is the difference between ATSAML11E15A-MFTKPH and ATSAML11E15A-MFT?
The ATSAML11E15A-MFTKPH and ATSAML11E15A-MFT share the same 32-VQFN (5x5 mm) package, the same 32 KB Flash, 8 KB SRAM, and the same Cortex-M23 core with TrustZone. The KPH suffix indicates an extended operating temperature range of -40 C to +125 C and a specific tape-and-reel orientation. They are pin-compatible drop-in replacements; choose KPH for industrial or outdoor applications and MFT for standard commercial grade.
Is there a drop-in replacement for ATSAML11E15A-MFTKPH?
Yes. The best drop-in replacement is the ATSAML11E15A-MFT from the same SAM L11 family, sharing the 32-VQFN (5x5 mm) footprint, 32 KB Flash, 8 KB SRAM, and identical pinout. Differences are limited to the operating temperature range (commercial vs extended). Other same-family drop-ins include ATSAML11E14A-MUT (16 KB Flash, 32-VQFN) and ATSAML11D16A-MFTKPH (64 KB Flash, 32-VQFN) - all share the same package footprint.
Where can I download the ATSAML11E15A-MFTKPH datasheet PDF?
The ATSAML11E15A-MFTKPH datasheet is available as a free PDF download from the official Microchip product page at microchip.com/en-us/product/ATSAML11E15A. Third-party mirrors include alldatasheet.com (1345577), LCSC (C618093.pdf), and FindIC. The datasheet covers pinout, electrical characteristics, memory map, TrustZone configuration, and Peripheral Touch Controller programming.
Does ATSAML11E15A-MFTKPH support ARM TrustZone?
Yes. The ATSAML11E15A-MFTKPH integrates ARM TrustZone for Cortex-M, providing hardware-isolated secure and non-secure code regions. According to the SAM L11 datasheet, TrustZone is enforced by the Memory Protection Unit, bus-level firewall, and secure-attribution registers on every peripheral. This enables secure boot, secure firmware update, secure key storage, and authenticated peripherals without requiring an external secure element IC.
What is the operating voltage of ATSAML11E15A-MFTKPH?
The ATSAML11E15A-MFTKPH operates from 1.62 V to 3.63 V single supply, covering the full 1.8 V, 2.5 V, 3.0 V, and 3.3 V common MCU rails. According to the Microchip SAM L11 datasheet, the internal DC-DC converter and LDO are both integrated, so no external supply sequencing is required. The wide voltage range allows direct connection to single-cell Li-ion, 2xAA alkaline, or USB-derived 3.3 V rails.
What are the key specifications of ATSAML11E15A-MFTKPH that engineers should know?
Engineers should know: ARM Cortex-M23 core with TrustZone, 32 MHz max CPU clock, 32 KB Flash, 8 KB SRAM, 1.62-3.63 V supply, 32-VQFN (5x5 mm) package, -40 to +125 C extended temperature range, AES/SHA/TRNG hardware crypto, 12-bit ADC, enhanced Peripheral Touch Controller, sub-25 uA/MHz active current, and sub-100 nA sleep current. These specs make it the lowest-power Cortex-M23 MCU in production with on-chip hardware security.
What is the best equivalent for ATSAML11E15A-MFTKPH from another brand?
Cross-brand equivalents to ATSAML11E15A-MFTKPH are limited because the SAM L11 is a unique combination of ARM Cortex-M23 + TrustZone + integrated hardware crypto + enhanced PTC. The closest non-Microchip equivalents are STM32L0 series Cortex-M0+ MCUs and NXP LPC51U68 Cortex-M0+ MCUs in 32-pin QFN packages - but these are not pin-compatible drop-ins; they require PCB rework and software porting.
When should I choose ATSAML11E15A-MFTKPH over ATSAMD21E17D-AF?
Choose ATSAML11E15A-MFTKPH when you need hardware-isolated TrustZone security, integrated AES/SHA/TRNG hardware crypto, and ultra-low sleep current under 100 nA - this is mandatory for secure IoT endpoints and authenticated peripherals. Choose ATSAMD21E17D-AF when you need higher throughput (Cortex-M0+ at 48 MHz, no TrustZone) and richer connectivity peripherals, but security is not a primary requirement. They are not pin-compatible.
Is ATSAML11E15A-MFTKPH suitable for battery-powered IoT sensors?
Yes, the ATSAML11E15A-MFTKPH is exceptionally well-suited for battery-powered IoT sensors. According to the Microchip datasheet, active current is below 25 uA/MHz and sleep current is below 100 nA, enabling years of operation on a single CR2032 coin cell. The integrated SleepWalking peripherals wake the CPU only when an actual sensor event is detected, and TrustZone protects sensor data and key material from firmware tampering.
Is ATSAML11E15A-MFTKPH RoHS compliant?
Yes, the ATSAML11E15A-MFTKPH is RoHS compliant per the Microchip product page and DigiKey listing (P/N 10231304). The part is supplied in lead-free 32-VQFN packaging with matte-tin terminations and is compatible with lead-free reflow profiles up to 260 C peak per IPC/JEDEC J-STD-020. REACH and conflict-minerals declarations are available on request from Microchip's compliance portal.

エンジニアリング参考データ: ATSAML11E15A-MFTKPH — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose ATSAML11E15A-MFTKPH when you need hardware-isolated TrustZone security, integrated AES/SHA/TRNG hardware crypto, ultra-low sleep current below 100 nA, and an extended -40 to +125 C operating range in a compact 32-VQFN package. It is the lowest-power Cortex-M23 MCU with on-chip root-of-trust security, ideal for secure IoT end nodes, smart-home sensor hubs, electronic locks, medical wearables, and industrial HMI with capacitive touch. Choose ATSAML11E15A-MFT (commercial grade) for indoor consumer products where 0 to +70 C operation is acceptable. Choose ATSAML11D16A-MFTKPH (64 KB Flash) when firmware size exceeds 32 KB or you need extra SRAM for buffers and logs. Choose ATSAML11E14A-MUT (16 KB Flash) when BOM cost is the primary driver and security features can be simplified. All share the same 32-VQFN (5x5 mm) footprint, enabling PCB layout reuse across product variants.

代替品との比較

パラメータ この製品 ATSAML11E15A-MFT ATSAML11D16A-MFTKPH ATSAML11E14A-MUT ATSAML11E14A-AUT
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
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Core ARM Cortex-M23 ARM Cortex-M23 ARM Cortex-M23 ARM Cortex-M23 ARM Cortex-M23
Flash Memory 32 KB 32 KB 64 KB 16 KB 16 KB
SRAM 8 KB 8 KB 16 KB 4 KB 4 KB
Maximum CPU Clock 32 MHz 32 MHz 32 MHz 32 MHz 32 MHz
TrustZone Yes Yes Yes Yes Yes
Operating Temperature -40 C to +125 C (KPH grade) 0 C to +70 C (commercial) -40 C to +125 C (KPH grade) -40 C to +85 C (industrial) -40 C to +125 C (automotive)
Active Current <25 uA/MHz <25 uA/MHz <25 uA/MHz <25 uA/MHz <25 uA/MHz

主な差別化要因

  • ARM TrustZone on a Cortex-M23 core (vs ATSAML10E16A-MUT)
  • Extended -40 to +125 C operating temperature (vs ATSAML11E15A-MFT)
  • Industry's lowest-power Cortex-M23 MCU (vs Generic Cortex-M0+ alternatives)
  • Integrated hardware crypto accelerators (vs Software-only crypto on Cortex-M0+ MCUs)

設計ノート

Place a 100 nF X7R ceramic decoupling capacitor within 2 mm of every VDD and VDDIO pin, plus a bulk 4.7 uF on the main VDD rail. The ATSAML11E15A-MFTKPH integrates an internal LDO; no external regulator is needed, but keep the supply trace short and use a star-ground topology to minimize digital switching noise coupling into the analog VDDANA rail. If the application draws >50 mA peak, add a 10 uF tantalum or ceramic on VDDANA to prevent droop during ADC conversions.

The 32-VQFN (5x5 mm) package exposes a thermal pad (pin 33 / EP) on the bottom that MUST be soldered to a continuous ground pour with at least 8 thermal vias (0.3 mm drill) to the inner ground plane. While the SAM L11 typically dissipates <50 mW, the thermal pad keeps junction temperature below 85 C at 25 C ambient and ensures Theta-JA remains in the datasheet range of approximately 38 C/W for the 32-VQFN. Skipping the thermal vias can elevate Theta-JA to over 80 C/W and trigger thermal shutdown during sustained CPU+ADC activity.

Route the 32.768 kHz crystal traces (XIN/XOUT) as short, symmetric pairs with a ground guard ring; keep them away from switching nodes and digital I/O. Estimated: for a 32.768 kHz crystal with 7 pF load capacitance, total trace length should stay under 5 mm to avoid excess gain loss. Place the crystal load capacitors (typically 4-12 pF) right at the MCU pins. For high-speed SERCOM SPI signals, route with 50 ohm characteristic impedance and keep stubs <3 mm.

Do NOT connect the SWDIO/SWDCLK pins to anything that could back-power the MCU during deep-sleep; the debug port has internal pull-ups that can leak several uA if left floating on a multi-drop bus. The PA27/BOOT pin must be left floating or pulled low for normal boot; do not tie it high unless entering the bootloader. When partitioning TrustZone regions, ensure the non-secure callable (NSC) entry points are aligned to 32-byte boundaries per the SAM L11 TRM or the linker will reject the image.

For capacitive touch sensing via the enhanced PTC, route the touch sensor traces on the top layer with a minimum 6 mil width and 6 mil clearance to adjacent ground pour. Guard the traces with a hatched ground fill to suppress ESD coupling. Avoid routing touch traces over or near noisy digital lines or under switching regulators; if unavoidable, place a ground shield layer between them. Calibrate the touch sensitivity using the QTouch Configurator after PCB assembly, since trace capacitance varies with solder mask and board stack-up.

コンプライアンス情報

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
鉛フリー
Yes
ハロゲンフリー
Yes
紛争鉱物
Compliant

RoHS and REACH compliant per Microchip product page. Lead-free matte-tin finish, MSL rating per JEDEC J-STD-020 (consult datasheet for exact MSL level). Not AEC-Q100 qualified - choose ATSAML11E15A-AUT for automotive-grade applications. Halogen-free per Microchip environmental compliance statement.

データ検証日: 2026-09-22 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

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関連部品&用語

Microchip Technology ATSAML11E15A-MFTKPH ATSAML11E15A-MFT ATSAML11D16A-MFTKPH ATSAML11E14A-MUT ATSAML11E14A-AUT ARM Cortex-M23 ARMv8-M Baseline ARM TrustZone VQFN-32 RoHS REACH AES SHA TRNG Peripheral Touch Controller secure boot IoT end node smart home sensor electronic lock medical wearable industrial HMI secure payment terminal SleepWalking QTouch Configurator
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