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ATSAML10E15A-MF - 32KB Flash Cortex-M23 MCU | Microchip SAM L10
ATSAML10E15A-MF

ATSAML10E15A-MF - 32KB Flash Cortex-M23 MCU | Microchip SAM L10

The Microchip Technology ATSAML10E15A-MF is an ARM Cortex-M23 based SAM L10 microcontroller integrating 32KB Flash, 8KB SRAM, and a 32-bit core running at up to 32 MHz, housed in a 32-pin VQFN (5x5 mm) package. It is marketed by Microchip as the industry's first and lowest power Cortex-M23 MCU, consuming less than 25 uA/MHz in active mode and less than 100 nA in sleep mode. 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.

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ATSAML10E15A-MFT - 32KB Flash Cortex-M23 MCU | Microchip
ATSAML10E15A-MFT

ATSAML10E15A-MFT - 32KB Flash Cortex-M23 MCU | Microchip

The Microchip Technology ATSAML10E15A-MFT is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller from the SAM L10 family, integrating 32KB of Flash memory and 8KB of SRAM, and housed in a 32-pin VQFN (5x5 mm) package with an exposed thermal pad. It operates at up to 32 MHz from a 1.62V to 3.63V supply, with active-mode current under 25 uA/MHz and sleep-mode current below 100 nA, making it the lowest-power Cortex-M23 MCU in its class per Microchip product page data. 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.

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ATSAML10E15A-MU - 32KB Flash Cortex-M23 MCU | Microchip 32-VQFN
ATSAML10E15A-MU

ATSAML10E15A-MU - 32KB Flash Cortex-M23 MCU | Microchip 32-VQFN

The Microchip Technology ATSAML10E15A-MU is an ARM Cortex-M23 32-bit microcontroller with 32 KB Flash and 8 KB SRAM, running up to 32 MHz, housed in a 32-pin VQFN (5x5 mm) package. It belongs to the SAM L10 family, marketed by Microchip as the industry's first and lowest-power Cortex-M23 MCU, consuming less than 25 uA/MHz in active mode and less than 100 nA in sleep mode, and integrating an enhanced Peripheral Touch Controller (PTC), advanced analog, ISO 7816 smart card interface, and an Event System. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile memory (SRAM), non-volatile memory (Flash), and peripherals such as ADCs, timers, and communication controllers. Cortex-M23 is an Armv8-M Baseline core featuring TrustZone-M security extension, single-cycle I/O access, and a deterministic interrupt latency suitable for low-power embedded applications. Within the system hierarchy, the ATSAML10E15A-MU sits as MCU -> 32-bit microcontroller -> embedded processor -> semiconductor, and as a sub-category of power management-aware MCUs designed for battery-operated end nodes. Key features include 32 KB Flash program memory, 8 KB SRAM, a 12-bit 1 Msps ADC with up to 20 channels, a 10-bit 350 ksps DAC, two analog comparators, three op-amps, a configurable Peripheral Touch Controller supporting buttons, sliders and proximity sensing, SERCOM (serial communication) instances for UART/SPI/I2C, an ISO 7816 smart card interface, and an Event System for CPU-independent peripheral signaling. Operating voltage spans 1.62 V to 3.63 V. The architecture pairs the Cortex-M23 core with single-cycle 32x32 multiply, Wake-Up Interrupt Controller (WIC), and SleepWalking peripherals that allow IO-driven wakeup without full CPU wake. The integrated PTC supports both self-capacitance and mutual-capacitance touch electrodes, enabling waterproof touch UI designs. A built-in 32 kHz RTC, brown-out detector, and watchdog complete the embedded feature set. Typical applications include IoT sensor nodes, battery-powered wearables, smart card and secure access terminals, capacitive touch user interfaces for appliances and consumer electronics, low-power wireless sensor hubs, and industrial controls. The deep-sleep current under 100 nA enables multi-year coin-cell operation in metering and remote monitoring. Industrial temperature grade (-40C to +85C) supports factory-floor and outdoor deployments. When designing with the ATSAML10E15A-MU, allocate the 32-pin VQFN thermal pad to a continuous ground pour for both electrical reference and heat spreading. Bypass VDDIN with a 1 uF and a 100 nF ceramic placed within 2 mm of the pin, and respect the decoupling guidance in the device datasheet when migrating from QFN32 to QFN24 packages. This page synthesizes Microchip official datasheet excerpts, distributor pricing from DigiKey and Mouser as of 2026-09-22, drop-in alternatives within the SAM L10/L11 family, and practical low-power design notes not consolidated on any single distributor page.

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ATSAML10E15A-MUT - 32KB Flash Cortex-M23 MCU | Microchip
ATSAML10E15A-MUT

ATSAML10E15A-MUT - 32KB Flash Cortex-M23 MCU | Microchip

The Microchip Technology ATSAML10E15A-MUT is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller from the SAM L10 family, featuring 32 KB of Flash and 8 KB of SRAM in a 32-pin VQFN (5x5 mm) package with an exposed pad. The device integrates an enhanced peripheral touch controller (PTC), a 12-bit ADC, and ISO 7816 smart card interface, with active-mode consumption below 25 uA/MHz and sleep-mode current under 100 nA. Core frequency is 32 MHz, allowing deterministic Cortex-M23 instruction execution with hardware single-cycle multiplier. 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.

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ATSAML10E16A-AFT - 32MHz Cortex-M23 MCU, 64KB Flash | Microchip
ATSAML10E16A-AFT

ATSAML10E16A-AFT - 32MHz Cortex-M23 MCU, 64KB Flash | Microchip

The Microchip ATSAML10E16A-AFT is a 32-bit ARM Cortex-M23 microcontroller from the SAM L10 family, featuring 64KB Flash, 16KB SRAM, and a maximum CPU clock of 32 MHz, housed in a 32-pin TQFP (7x7 mm) package. It is rated for industrial-grade temperature operation up to +125C and ships in Tape & Reel packaging. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash for code, SRAM for data), and a rich set of peripherals on one die. The ATSAML10E16A-AFT belongs to the ARM Cortex-M family of microcontrollers, a hierarchy that spans from low-power Cortex-M0+ cores up through Cortex-M4/M7 parts with DSP and FPU. The SAM L10 series specifically targets ultra-low-power embedded designs, drawing on the Cortex-M23 core's TrustZone-M security extension and Microchip's proprietary peripherals, including an enhanced Peripheral Touch Controller (PTC) for capacitive sensing. Key features include industry-leading power efficiency: less than 25 uA/MHz in active mode and less than 100 nA in sleep mode, making this part well-suited for battery-powered IoT endpoints. It integrates advanced analog such as a 12-bit ADC and 10-bit DAC, plus operational amplifiers, multiple SERCOM (serial communication) interfaces, an ISO7816 smart card interface, and a configurable Event System for peripheral-to-peripheral signaling without CPU involvement. The architecture combines a single-core Cortex-M23 with TrustZone-M hardware isolation, enabling secure and non-secure code partitioning for IoT security applications. The 32 MHz clock and 64KB Flash provide sufficient headroom for connected sensor nodes, low-power wireless stacks, and Human-Machine Interface (HMI) products with touch input. Typical applications include IoT sensor nodes, capacitive touch user interfaces, smart card / secure element readers, wearable health monitors, industrial HMI panels, and battery-powered metering devices. In each of these use cases, the sub-100 nA sleep current extends coin-cell battery life to multi-year durations. When designing with the ATSAML10E16A-AFT, prioritize sleep-mode usage with RTC wake events to maximize battery life. The integrated PTC supports up to 256 buttons without external components, but trace layout must follow Microchip's touch-layout guidelines to maintain moisture immunity and ESD tolerance.

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ATSAML10E16A-AU - 32MHz Cortex-M23 MCU 64KB Flash | Microchip
ATSAML10E16A-AU

ATSAML10E16A-AU - 32MHz Cortex-M23 MCU 64KB Flash | Microchip

The Microchip Technology ATSAML10E16A-AU is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with 64KB Flash and 16KB SRAM, housed in a 32-pin TQFP (7x7 mm) package. It operates at up to 32 MHz, features enhanced Peripheral Touch Controller (PTC), advanced analog peripherals, and an ISO 7816 smart card interface. According to Microchip product page, it is 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. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash/SRAM), and programmable peripherals. The Cortex-M23 sub-family is ARM's smallest and most energy-efficient TrustZone-enabled core, positioned between Cortex-M0+ (lowest performance) and Cortex-M3 (mainstream). Microcontrollers sit at the bottom of the embedded computing hierarchy: MCU -> embedded processor -> SoC, and they serve as the main controller in nearly every battery-powered or IoT device. Key features include 64KB Flash, 16KB SRAM, 32 MHz CPU clock, ARM TrustZone security, enhanced PTC for capacitive touch sensing, SERCOM (Serial Communication Interface) peripherals, 12-bit ADC, 10-bit DAC, and operational amplifiers on-chip. The device operates from 1.62V to 3.63V supply and supports -40C to +85C industrial temperature range. Integrated AES and True Random Number Generator (TRNG) hardware accelerators enable secure IoT applications. The architecture combines a Cortex-M23 core with a low-power peripheral ecosystem. Multiple sleep modes (IDLE, STANDBY, BACKUP, OFF) and Peripheral Event System allow the CPU to remain dormant while peripherals operate autonomously, achieving the sub-100 nA sleep figure. TrustZone isolation partitions firmware into Secure/Non-Secure worlds, allowing IP protection in connected products without an external secure element. Typical applications include IoT sensor nodes, wearable fitness/health devices, smart home wireless endpoints, secure payment terminals, smart card readers, industrial HMI panels with capacitive touch, and battery-powered data loggers. The ISO 7816 interface makes it particularly suitable for contactless and contact-based smart card applications such as payment terminals and identification devices. When designing with this device, ensure proper decoupling of the AVDD and DVDD rails with at least 100 nF ceramic capacitors close to the pins. For lowest sleep current, configure unused peripherals in OFF state and route wake-up sources through the Peripheral Event System rather than polling. Programming requires a SWD-compatible debugger; Microchip's Atmel Studio 7 or MPLAB X IDE with the SAME54/SAML10 device pack supports full debugging. This page synthesizes distributor pricing from 11 sources (Octopart aggregation), drop-in alternatives within the SAM L10 family, and practical design notes derived from the SAML10 datasheet - information not consolidated on any single manufacturer or distributor page.

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ATSAML10E16A-MF - 32MHz Cortex-M23 MCU, 64KB Flash | Microchip
ATSAML10E16A-MF

ATSAML10E16A-MF - 32MHz Cortex-M23 MCU, 64KB Flash | Microchip

The Microchip Technology ATSAML10E16A-MF is an ultra-low-power ARM Cortex-M23 microcontroller in the SAM L10 family, integrating 64KB of Flash and 16KB of SRAM in a 32-pin VQFN (5x5 mm) package, and operating at up to 32 MHz. As one of the industry's lowest-power Cortex-M23 MCUs, it consumes less than 25 uA/MHz in active mode and less than 100 nA in sleep mode, making it ideal for battery-powered IoT edge nodes. 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.

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ATSAML10E16A-MU - 32MHz Cortex-M23 MCU, 64KB Flash | Microchip
ATSAML10E16A-MU

ATSAML10E16A-MU - 32MHz Cortex-M23 MCU, 64KB Flash | Microchip

The Microchip ATSAML10E16A-MU is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with 64KB Flash and 16KB SRAM in a 32-pin VQFN (5x5 mm) package. As part of the SAM L10 family, it consumes less than 25 uA/MHz in active mode and less than 100 nA in sleep mode, making it one of the industry's lowest-power Cortex-M23 MCUs. An ARM Cortex-M23 microcontroller is a 32-bit embedded processor core based on the Armv8-M architecture, designed as a successor to the Cortex-M0/M0+ for applications that need a balance of low power, deterministic interrupt response, and TrustZone-ready security. Cortex-M23 sits within the hierarchy: Cortex-M23 -> Cortex-M series -> ARMv8-M -> 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. LDOs, BODs, and on-chip peripherals around the core form a complete mixed-signal MCU for battery-powered designs. The ATSAML10E16A-MU features a 32 MHz Cortex-M23 core, 64KB Flash, 16KB SRAM, an enhanced peripheral touch controller (PTC), a 12-bit 1 MSPS ADC, a 10-bit DAC, multiple SERCOM interfaces, an ISO7816 smart card interface, and an Event System for inter-peripheral signaling. It also includes brown-out detection, a windowed watchdog timer, and an RTC with calendar mode. The wide 1.62V-3.63V supply range and integrated DC-DC buck converter support direct Li-ion battery operation. Typical applications include IoT sensor nodes, wearables, smart-home devices, secure card readers, low-power wireless sensor hubs, and human-machine interface (HMI) controls using the touch controller. The 5x5 mm VQFN footprint makes it suitable for space-constrained designs. The PTC supports up to 256 buttons in self-capacitance mode and 32 buttons in mutual-capacitance mode, enabling robust touch surfaces without external ICs. When designing with this part, take advantage of the Event System and SleepWalking peripherals to keep the CPU in deep sleep for maximum battery life. Use the on-chip buck converter for core domains and the LDO for analog domains to optimize efficiency across operating modes.

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ATSAML10E16A-MUT - 32MHz Cortex-M23 MCU, 64KB Flash | Microchip
ATSAML10E16A-MUT

ATSAML10E16A-MUT - 32MHz Cortex-M23 MCU, 64KB Flash | Microchip

The Microchip Technology ATSAML10E16A-MUT is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller running up to 32 MHz, integrating 64 KB of Flash and 16 KB of SRAM in a 32-pin VQFN (5x5 mm) package. It belongs to the SAM L10 family, billed as the industry's lowest-power Cortex-M23 MCU, drawing less than 25 uA/MHz in active mode and under 100 nA in sleep mode. Operating voltage spans 1.62 V to 3.63 V from a single supply, with an industrial-grade -40C to +85C temperature window. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (SRAM), and a rich set of peripherals (ADC, timers, communication interfaces, GPIOs). Within the broader hierarchy, MCUs belong to embedded processors, which sit under microcontrollers and ICs. The Cortex-M23 core implements the ARMv8-M baseline architecture with TrustZone-M security extensions, making the SAM L10 one of the first Cortex-M23 devices to combine hardware isolation with picoamp sleep currents for always-on IoT endpoints. Key features include an enhanced Peripheral Touch Controller (PTC) supporting up to 256 touch channels, a 12-bit 1 Msps ADC, two analog comparators, a 16-bit Sigma-Delta ADC option, SERCOM peripherals (configurable as UART/SPI/I2C), an ISO 7816 smart-card interface, an Event System, and a Real-Time Clock with calendar mode. The device integrates a full-speed USB 2.0 device interface and supports up to 27 GPIO pins. An integrated 32.768 kHz crystal oscillator and 16 MHz frequency-locked loop (FLL) remove the need for external high-speed crystals in many designs. Architecturally, the SAM L10 builds on a low-leakage process with multiple power domains and six software-selectable sleep modes (IDLE, STANDBY, OFF, BACKUP, OFF with RTC, OFF without RTC). The Cortex-M23 core provides single-cycle multiply, hardware divide, and a 4-stage pipeline. TrustZone-M lets firmware partition secure and non-secure code regions at the hardware level - rare in sub-1-dollar Cortex-M23 MCUs - making the SAM L10 attractive for smart-card, secure IoT, and payment terminals. Typical applications include battery-powered IoT sensor nodes, wearable health monitors, smart-home control panels, secure payment terminals, capacitive-touch user interfaces, industrial HMI panels, and energy-harvesting wireless endpoints. In each of these, the under-100 nA sleep current is the headline figure - it enables multi-year coin-cell lifetimes and lets the MCU stay alive in standby without draining the battery. The integrated PTC, RTC, and Event System let the device wake periodically, sample a sensor, transmit over a SERCOM-driven radio, and return to sleep without CPU intervention. When designing with this part, remember that the VQFN-32 has an exposed thermal pad that MUST be soldered to the ground plane for electrical and thermal performance. Decouple VDD with 100 nF and 4.7 uF ceramics placed within 2 mm of the supply pins. Configure unused GPIOs as inputs with the internal pull-up enabled to minimize quiescent leakage. Microchip's MPLAB X IDE, MCC code configurator, and Atmel START (legacy) provide full toolchain support. This page synthesizes distributor pricing, drop-in alternatives from the same SAM L10 family, and practical design notes not found in the manufacturer datasheet.

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ATSAML11D14A-MF - 32MHz Cortex-M23 MCU 16KB Flash | Microchip
ATSAML11D14A-MF

ATSAML11D14A-MF - 32MHz Cortex-M23 MCU 16KB Flash | Microchip

The Microchip ATSAML11D14A-MF is a 32-bit ARM Cortex-M23 microcontroller featuring chip-level ARM TrustZone technology, 16KB of Flash, 8KB of SRAM, and an integrated crypto subsystem, packaged in a 24-pin VQFN (4x4 mm). It is part of Microchip's SAM L11 family, recognized as the industry's first Cortex-M23 MCU with built-in TrustZone for hardware-isolated secure and non-secure code execution. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The ARM Cortex-M23 is an ARMv8-M Baseline processor core designed for energy-efficient embedded applications. The SAM L11 belongs to the low-power microcontroller hierarchy (MCU -> ARM Cortex-M MCU -> low-power MCU -> secure MCU), making it suitable for battery-operated and IoT edge devices where active current and sleep current directly determine battery life. Key specifications of the ATSAML11D14A-MF include a 32 MHz maximum CPU clock, less than 25 uA/MHz active current consumption, and less than 100 nA in sleep mode. It features 16KB Flash and 8KB SRAM, a 12-bit ADC, an enhanced Peripheral Touch Controller (PTC) for capacitive touch sensing, and secure key storage with chip-level tamper resistance. The 24-VQFN package enables compact PCB layouts for space-constrained designs. The SAM L11 architecture pairs the Cortex-M23 core with Microchip's TrustZone-aware secure boot, secure bootloader, and hardware crypto accelerators (AES, SHA, TRNG). This dual-world execution model allows OEMs to isolate IP-protected firmware from user application code without external secure elements. The crypto block performs symmetric, hashing, and random-number operations directly on-chip, reducing BOM cost and attack surface in IoT endpoints. Typical applications include IoT end nodes with secure firmware updates, low-power wireless sensor nodes, smart meters, secure access control, wearable health monitors, and battery-powered HMI products with capacitive touch. The combination of TrustZone and on-chip crypto accelerates PSA Certified Level 1 compliance for connected products. Designers should pay attention to the MCU's decoupling network: place 100 nF and 1 uF capacitors close to the VDD pin pair, and follow Microchip's PCB layout guidelines for the 24-VQFN exposed pad for thermal dissipation. The integrated PTC requires specific sensor trace routing; refer to the device datasheet's touch section for guard-ring and ground-fill recommendations. This page synthesizes current distributor pricing, same-family drop-in alternatives from the SAM L11 portfolio, and practical design notes drawn from Microchip's published documentation and application notes.

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ATSAML11D14A-MFT - 32MHz Cortex-M23 MCU 16KB Flash 24-VQFN | Microchip
ATSAML11D14A-MFT

ATSAML11D14A-MFT - 32MHz Cortex-M23 MCU 16KB Flash 24-VQFN | Microchip

The Microchip Technology ATSAML11D14A-MFT is a 32-bit ARM Cortex-M23 microcontroller with TrustZone-M security, featuring 16 KB of Flash and 8 KB of SRAM, operating at up to 32 MHz and housed in a 24-pin VQFN (4x4 mm) package. It is part of the SAM L11 family, the industry's first Cortex-M23 MCU with chip-level Arm TrustZone technology, secure key storage, and chip-level tamper resistance. According to the Microchip product page, the device consumes less than 25 uA/MHz in active mode and less than 100 nA in sleep mode, making it the lowest-power Cortex-M23 in its class. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and a rich set of peripherals such as timers, ADC, communication interfaces (I2C, SPI, USART), and GPIO. The SAM L11 family belongs to the broader category of 32-bit embedded microcontrollers, which sit between 8/16-bit MCUs (lower performance, simpler peripherals) and higher-end microprocessors/MPUs (with external memory and complex OS support). Cortex-M23 specifically targets ultra-low-power secure IoT nodes, combining the energy efficiency of Cortex-M0+ with the optional TrustZone isolation of Cortex-M33 at a lower gate count. Key features of the ATSAML11D14A-MFT include hardware crypto accelerators (AES, SHA, True Random Number Generator), secure boot with immutable root key storage, up to 16 GPIOs, a 12-bit ADC, multiple SERCOM peripherals configurable as I2C/SPI/USART, and a 125 C industrial-grade operating temperature range (denoted by the 'M' in the part suffix). The 'F' suffix indicates Tape and Reel packaging, while 'T' designates the 125 C maximum junction temperature. Architecturally, the SAM L11 implements a dual-bank Flash with secure and non-secure regions, TrustZone-M for hardware-enforced isolation, and a Secure Firmware Update mechanism. The 32 MHz Cortex-M23 core delivers 0.93 DMIPS/MHz with a single-cycle multiplier, executing Thumb-2 instructions. Integrated peripherals include a 32-channel Event System, RTC, and low-power SleepWalking modes that wake peripherals selectively. Typical applications include secure IoT sensor nodes, wireless meter endpoints, smart locks and access control, wearables with secure identity, secure payment terminals, industrial sensor hubs, and battery-powered edge devices requiring over-the-air firmware updates with cryptographic authentication. The chip-level tamper detection makes it well-suited for point-of-sale terminals and anti-counterfeiting use cases. When designing with this part, carefully plan the secure/non-secure memory partition early because TrustZone boundaries affect linker scripts and library linking. Ensure the supply decoupling network uses at least one 100 nF capacitor placed within 2 mm of each VDD pin to meet the 32 MHz operation's noise budget. This page synthesizes distributor pricing, drop-in package-compatible alternatives from the same SAM L11 family, and practical design notes not consolidated in any single manufacturer document.

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ATSAML11D14A-MU - 32MHz Cortex-M23 MCU w/ TrustZone | 24-VQFN
ATSAML11D14A-MU

ATSAML11D14A-MU - 32MHz Cortex-M23 MCU w/ TrustZone | 24-VQFN

The Microchip Technology ATSAML11D14A-MU is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller featuring ARM TrustZone technology, 16KB of Flash, 8KB of SRAM, and integrated hardware crypto acceleration, housed in a 24-pin VQFN (4x4 mm) package with exposed pad. It operates from a 1.62V to 3.63V supply and runs at up to 32 MHz, achieving less than 25 uA/MHz in active mode and under 100 nA in sleep mode per the manufacturer product page. A microcontroller (MCU) is a System-on-Chip that integrates a CPU core, program memory (Flash), working memory (SRAM), and programmable peripherals into a single device. The Cortex-M23 is an ARMv8-M baseline core that introduces TrustZone for Cortex-M, enabling hardware-isolated secure and non-secure code execution. The ATSAML11 family belongs to the SAM family of 32-bit microcontrollers from Microchip, positioned under the broader ARM Cortex-M hierarchy and serving low-power, security-focused IoT endpoints. Key features of the ATSAML11D14A-MU include ARM TrustZone-M hardware isolation, secure key storage, chip-level tamper resistance (Active Tamper), 16KB Flash / 8KB SRAM, a 32 MHz maximum CPU clock, an integrated hardware AES/SHA accelerator, 17 programmable I/O pins, and selectable peripherals including SERCOM (I2C/SPI/UART), ADC, DAC, timers, and RTC. The part is rated for the industrial temperature range (-40C to +85C) and is supplied in a 24-VQFN 4x4 mm package. The ATSAML11D14A-MU targets deployments where deterministic real-time response, low power, and on-chip security are all required simultaneously. TrustZone-M allows developers to partition firmware into secure and normal worlds for IP protection, secure boot, and key management. Combined with hardware crypto and tamper detection, the device is engineered for connected endpoints that must defend against physical and remote attacks without burdening the application CPU. Typical applications include secure IoT endpoints, sensor nodes with secure firmware, smart meters, asset tracking, access control peripherals, and battery-powered industrial sensors. The combination of TrustZone-M plus less than 100 nA sleep current makes it well-suited to devices that spend long intervals dormant and wake only to perform short authenticated tasks. When designing in the ATSAML11D14A-MU, plan the secure/non-secure memory map early; TrustZone-M boundaries defined in the linker script are easier to design up front than to retrofit. Decoupling: place one 100 nF X7R plus one 1 uF X7R close to VDDIN/VDDIO, and provide a clean ground return under the exposed pad which must be soldered to the PCB for thermal and electrical reasons. This page synthesizes distributor pricing, secure-MCU design notes, parametric comparisons versus other SAM L11 pin-compatibles, and TradePulse-style drop-in alternatives - information engineers need that a raw datasheet PDF does not provide on a single page.

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ATSAML11D14A-MUT - 32MHz Cortex-M23 TrustZone MCU 16KB Flash | Microchip
ATSAML11D14A-MUT

ATSAML11D14A-MUT - 32MHz Cortex-M23 TrustZone MCU 16KB Flash | Microchip

The Microchip Technology ATSAML11D14A-MUT is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with integrated ARM TrustZone technology, 16KB Flash, 8KB SRAM, and 2KB Data Flash in a 24-pin VQFN (4x4 mm) package. Operating from 1.62V to 3.63V at up to 32MHz, it delivers 2.62 CoreMark/MHz and up to 31 DMIPS while consuming less than 25 µA/MHz in active mode and less than 100 nA in sleep mode. It is the industry's first Cortex-M23 MCU with chip-level security and TrustZone for root-of-trust designs. A microcontroller (MCU) is a single-chip computer that integrates a processor core, non-volatile program memory (Flash), volatile working memory (SRAM), and a rich set of peripherals including timers, communication controllers, and analog blocks. Within the broader semiconductor taxonomy, an MCU belongs to the embedded processor hierarchy: microcontroller -> embedded processor -> semiconductor IC. The SAM L11 family sits at the low-power, security-focused end of Microchip's SAM portfolio, designed for IoT edge nodes, secure sensors, and battery-operated products that require isolated secure and non-secure code execution domains via TrustZone for ARMv8-M. Key features of the ATSAML11D14A include a single-cycle hardware multiplier, hardware divider, Nested Vector Interrupt Controller (NVIC), and a Memory Protection Unit (MPU). Secure key storage, chip-level tamper resistance, and a cryptographic accelerator make it well-suited for PSA Level 1 / Level 2 certified designs. Peripherals include SERCOM (configurable serial communication), ADC, DAC, and timers. The device operates over the industrial -40 °C to +85 °C temperature range, suiting consumer, industrial, and metering environments. Architecturally, the SAM L11 implements the ARMv8-M Baseline profile with TrustZone, providing hardware isolation between secure and non-secure code. The Cortex-M23 core pairs a 2-stage pipeline with deterministic interrupt handling. A low-power Always-On (AON) domain keeps RTC and wake sources alive below 100 nA, while dynamic power scaling adjusts active current to workload. Integrated op amps and a 12-bit 1 Msps ADC ease analog front-end designs. Typical applications include secure IoT end nodes, smart meters, wireless sensor nodes (BLE/Zigbee host MCUs), medical wearables, secure access control, and industrial HMI. Designers also deploy it in home automation and battery-powered consumer products where 100 nA sleep current extends multi-year coin-cell life. When designing with this part, ensure that the secure/non-secure memory partitioning and linker configuration align with the TrustZone model — firmware written without the secure attribution scheme loses the device's primary security benefit. Use Microchip MPLAB X IDE with MCC for TrustZone-aware project generation, and verify sleep-mode current on the bench because leakage can dominate at room-temperature corners. This page synthesizes distributor pricing, drop-in alternatives from the same SAM L11 family and qualified cross-brand equivalents, and practical design notes not found in the manufacturer datasheet.

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ATSAML11D14A-YFT - ARM Cortex-M23 MCU 16KB Flash | Microchip
ATSAML11D14A-YFT

ATSAML11D14A-YFT - ARM Cortex-M23 MCU 16KB Flash | Microchip

The Microchip Technology ATSAML11D14A-YFT is an ARM Cortex-M23 based SAM L11 microcontroller delivering 32 MHz CPU performance with 16 KB Flash and 8 KB SRAM in a 24-pin SSOP package. It operates from 1.62 V to 3.63 V supply, integrates ARM TrustZone technology, secure key storage, and chip-level tamper resistance, and is rated for the -40 C to +125 C industrial temperature range. Background knowledge: A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile memory (SRAM), non-volatile program memory (Flash), and a rich set of peripheral IPs into one package. The ARM Cortex-M23 core is an Armv8-M baseline architecture targeted at deeply embedded, energy-constrained, and security-sensitive IoT endpoints. Microcontrollers fall within the broader category hierarchy of microcontroller -> embedded processor -> semiconductor -> integrated circuit. Key features include 16 KB of Flash, 8 KB of SRAM, an active current below 25 uA/MHz, sleep current below 100 nA, and on-chip crypto accelerators supporting AES, SHA, and True Random Number Generation. TrustZone for ARMv8-M isolates secure firmware from normal firmware, and the part supports secure boot with immutable root-of-trust. Architecturally the device uses a single-core 32-bit Cortex-M23 pipeline with hardware single-cycle multiplier and a Nested Vectored Interrupt Controller (NVIC). Peripherals include multiple SERCOM (serial communication) instances configurable as UART, SPI, or I2C, 12-bit ADC, 10-bit DAC, comparators, timers, and RTC. The 24-pin SSOP package is industry-standard and enables hand-solderable prototypes alongside volume SMD assembly. Typical applications include IoT end nodes with secure firmware update, smart energy metering, medical sensors requiring HIPAA-grade data isolation, secure industrial HMI panels, building automation controllers, and battery-powered wearable devices. The combination of TrustZone and ultra-low sleep current makes it ideal for always-on edge devices. When designing with this part, place a 100 nF decoupling capacitor as close as possible to every VDD pin and follow the SAM L11 hardware design checklist for the 24-pin SSOP. Choose the boot mode strap resistors carefully because TrustZone secure-boot configuration is latched at reset. This page synthesizes distributor pricing, drop-in SAM L11 alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATSAML11D14A-YU - 32MHz Cortex-M23 MCU, 16KB Flash, TrustZone-M | Microchip
ATSAML11D14A-YU

ATSAML11D14A-YU - 32MHz Cortex-M23 MCU, 16KB Flash, TrustZone-M | Microchip

The Microchip ATSAML11D14A-YU is a 32-bit ARM Cortex-M23 microcontroller featuring chip-level security via ARM TrustZone-M technology, 16KB of Flash, and 8KB of SRAM in a 24-pin SSOP package. It runs at up to 32 MHz with an active-mode current under 25 uA/MHz and a sleep-mode current below 100 nA, making it one of the lowest-power Cortex-M23 devices available. According to the Microchip product page, the device integrates a peripheral touch controller (PTC), SERCOM, ADC, DAC, OPAMP, and analog comparators on-chip. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (SRAM), and a wide range of peripherals. Within the MCU hierarchy, the ATSAML11D14A-YU belongs to the Cortex-M23 sub-family (low-power entry-level core in the Cortex-M lineup), within the SAM L family (low-power microcontrollers), within the broader SAM family of Microchip 32-bit ARM microcontrollers, which itself sits under the wider category of embedded microcontrollers and semiconductors. Key security and integration features include secure key storage, chip-level tamper resistance, ARM TrustZone-M hardware isolation, hardware cryptographic acceleration, and a peripheral touch controller. The 24-SSOP package supports industrial temperature ranges and is drop-in compatible with other SAM L11 family variants in the same pinout, allowing PCB reuse across memory-size or feature-set changes. The architecture combines the energy-efficiency of Cortex-M23 with hardware-level isolation between secure and non-secure code regions. TrustZone-M enables designers to isolate firmware IP, cryptographic keys, and secure boot routines from application code, reducing firmware attack surface in IoT endpoints. The integrated PTC and analog peripherals remove the need for external touch ASICs or op-amps in many designs. Typical applications include secure IoT endpoints, smart-home sensors, low-power wireless sensor nodes, secure token devices, tamper-resistant industrial controllers, and consumer products requiring on-chip touch. The combination of low active current, deep-sleep sub-100 nA current, and TrustZone-M makes it a strong fit for battery-operated, security-conscious products. When designing with this MCU, follow the Microchip SAM L11 datasheet's startup and TrustZone-M configuration flow, and budget for the secure boot region when partitioning Flash between secure and non-secure code. This page synthesizes distributor pricing, drop-in SAM L11 alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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ATSAML11D14A-YUT - 32MHz Cortex-M23 MCU, 16KB Flash, TrustZone | Microchip
ATSAML11D14A-YUT

ATSAML11D14A-YUT - 32MHz Cortex-M23 MCU, 16KB Flash, TrustZone | Microchip

The Microchip Technology ATSAML11D14A-YUT is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with 16KB Flash, 8KB SRAM, and integrated ARM TrustZone technology, housed in a 24-pin SSOP package. It operates from 1.62V to 3.63V with a 32MHz core clock and is rated for industrial temperature ranges (-40C to +85C). A microcontroller (MCU) is a single-chip computer containing a processor core, program memory (Flash), data memory (SRAM), and a rich set of peripherals. The Cortex-M23 is an ARMv8-M baseline core optimized for energy efficiency and deterministic interrupt response. Within the broader taxonomy, the SAM L11 sits at: ARM Cortex-M23 -> ARMv8-M Mainline -> 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. The L11 is Microchip's first MCU family to ship native ARM TrustZone hardware isolation for the Cortex-M class, a feature typically reserved for higher-end Cortex-M33 parts. Key features include chip-level tamper detection, secure key storage, a true random number generator (TRNG), secure boot with immutable root-of-trust, and up to 22 GPIO. Power consumption is below 25 uA/MHz in active mode and below 100 nA in sleep (retention) mode, making it one of the lowest-power Cortex-M23 devices available as of 2026. The device integrates an 8-channel 12-bit ADC, two I2C, two SPI, one I2S, up to three UART/USART, and a full-speed USB 2.0 device controller. The SAM L11 architecture pairs the Cortex-M23 core with a Microchip peripheral touch controller (PTC) for capacitive touch sensing and a hardware crypto accelerator supporting AES, SHA, and PKC. TrustZone partitions code and memory into Secure and Non-Secure worlds, allowing firmware updates to be authenticated before they touch protected memory regions. Memory protection is enforced by the TrustZone Memory Protection Controller (MPC). Typical applications include IoT end nodes, secure sensor hubs, wearable medical devices, smart metering, secure industrial controllers, and tamper-resistant payment terminals. The combination of TrustZone and ultra-low power is rare, so designers choose it specifically when both security boundaries and battery life matter. Designers should plan a secure-boot flow before locking the part in production: the immutable bootloader row, OTP region, and TrustZone configuration are one-time programmable and difficult to change later. Use Microchip's MPLAB X IDE with the SAML11 Xplained Pro board for evaluation.

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ATSAML11D15A-MFKPH - 32KB Flash Cortex-M23 MCU | Microchip
ATSAML11D15A-MFKPH

ATSAML11D15A-MFKPH - 32KB Flash Cortex-M23 MCU | Microchip

The Microchip Technology ATSAML11D15A-MFKPH is a 32-bit ARM Cortex-M23 SAM L11 microcontroller with TrustZone security, delivering 32 MHz CPU performance with 32 KB Flash and 8 KB SRAM in a 24-pin VQFN (4x4 mm) package. The device operates from 1.62V to 3.63V supply, integrates a hardware Crypto accelerator, and supports up to 125 C junction temperature for industrial environments. Active current consumption is rated below 25 uA/MHz with sub-100 nA sleep current, making it among the lowest-power Cortex-M23 MCUs in its class. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripherals such as timers, communication controllers, and analog blocks. The SAM L11 family sits at the top of Microchip's low-power MCU hierarchy: Cortex-M23 -> ARMv8-M baseline architecture -> 32-bit microcontroller -> embedded processor -> semiconductor. It is designed for battery-powered and secure IoT endpoints where both energy budget and tamper resistance are critical. Key features include ARM TrustZone for hardware-isolated secure/non-secure code regions, secure key storage, chip-level tamper resistance, an Enhanced Peripheral Touch Controller (PTC) for capacitive touch, and integrated AES/SHA crypto accelerators. The 24-pin VQFN-24 package provides a compact 4x4 mm footprint suited for space-constrained sensor nodes and wearables. The MCU also includes a 12-bit ADC, multiple SERCOM interfaces configurable as UART/SPI/I2C, and a Self-Programming Flash controller for field updates. The Cortex-M23 core implements the ARMv8-M baseline instruction set with TrustZone-M extensions and a single-cycle hardware multiply. Microchip's SAM L11 architecture partitions the bus matrix into secure and non-secure address spaces enforced by the IDAU (Implementation Defined Attribution Unit), enabling a small secure bootloader to gate access to cryptographic keys. This isolates provisioning secrets from the main application firmware, a configuration typically reserved for parts costing 2-3x more. Typical applications include secure IoT sensor nodes, smart meters, medical wearable patches, industrial HMI with capacitive touch, secure payment terminals, and authenticated firmware-update dongles. The combination of TrustZone, hardware crypto, sub-100 nA sleep, and 32 KB Flash targets designs that need defense-in-depth without a discrete secure element. When designing with the SAM L11, place a 100 nF decoupling capacitor within 2 mm of each VDD pin and a 4.7 uF bulk capacitor on the main supply rail. The Enhanced PTC requires careful PCB trace routing - keep touch electrodes on a dedicated layer with a ground hatch. Use Atmel START or MPLAB X with the Harmony 3 framework to configure TrustZone attribution and the CryptoCell accelerator properly, otherwise secure boot may fail silently. This page synthesizes distributor pricing, drop-in alternatives across the SAM L10/L11 family, and practical TrustZone configuration notes not found in a single datasheet chapter.

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ATSAML11D15A-MFT - 32KB Flash ARM Cortex-M23 MCU | Microchip
ATSAML11D15A-MFT

ATSAML11D15A-MFT - 32KB Flash ARM Cortex-M23 MCU | Microchip

The Microchip Technology ATSAML11D15A-MFT is an ARM Cortex-M23 based 32-bit microcontroller in the SAM L11 family, integrating 32 KB of Flash and 8 KB of SRAM in a 24-pin VQFN (4x4 mm) package with an exposed thermal pad. It operates from a single 1.62 V to 3.63 V supply, runs at up to 32 MHz, and delivers less than 25 uA/MHz active current and less than 100 nA in sleep mode. A Cortex-M23 microcontroller is an ARMv8-M Baseline microcontroller core designed for energy-efficient embedded computing with hardware-level security extensions. The Cortex-M23 architecture sits at the entry tier of the ARM Cortex-M family, below Cortex-M0+/M4/M7 but above legacy Cortex-M0, and the SAM L11 family is the industry's first Cortex-M23 implementation to integrate ARM TrustZone technology for hardware-isolated secure and non-secure code execution. Key features include TrustZone for ARMv8-M, secure key storage, chip-level tamper resistance, a True Random Number Generator (TRNG), and AES/SHA hardware accelerators. The device integrates 6 SERCOM (serial communication) channels configurable as UART/SPI/I2C, a 12-bit ADC up to 1024 ksps, up to 17 GPIO, and an RTC counter from 30 to 50 kHz. The package exposes a dedicated external interrupt and a frequency meter. The SAM L11 architecture pairs the Cortex-M23 core with a single-cycle hardware multiplier and a Memory Protection Unit (MPU), while keeping the interrupt latency under 12 cycles. The TRNG and crypto accelerators offload key exchange and authentication from the CPU, enabling secure boot and firmware update paths without taxing the 32 MHz core. Typical applications include IoT end nodes with secure boot, smart sensors with authenticated firmware, access control and anti-counterfeit peripherals, battery-powered wireless sensor nodes, and medical wearables requiring hardware tamper detection. The 24-VQFN package supports compact module designs where the secure element must share a PCB with an RF transceiver or sensor front-end. When designing with this device, ensure the 24-VQFN exposed pad is soldered to a continuous ground plane for thermal dissipation and signal integrity. Configure TrustZone linker sections early in firmware development - retro-fitting secure/non-secure partitioning after integration typically requires significant refactoring of peripheral access APIs. This page synthesizes distributor pricing across 8 sources, drop-in SAM L11 family alternatives, and TrustZone-aware design notes that are not aggregated on the manufacturer product page.

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ATSAML11D15A-MFTKPH - 32KB Flash TrustZone Cortex-M23 MCU | Microchip
ATSAML11D15A-MFTKPH

ATSAML11D15A-MFTKPH - 32KB Flash TrustZone Cortex-M23 MCU | Microchip

The Microchip Technology ATSAML11D15A-MFTKPH is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller featuring ARM TrustZone technology, hardware crypto acceleration, and enhanced Peripheral Touch Controller (PTC), operating at up to 32 MHz with 32KB Flash and 8KB SRAM in a 24-pin VQFN (4x4 mm) package with exposed pad. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The Cortex-M23 is ARM's smallest and most energy-efficient application processor, designed for deeply embedded IoT and secure applications. The ATSAML11 belongs to the L11 sub-family of the SAM MCU portfolio, adding TrustZone-M hardware isolation between secure and non-secure code regions—a technology standard inherited from ARM's application processors but adapted for microcontroller-class devices. Hypernyms in the SAM family taxonomy: SAM L11 -> Cortex-M23 MCU -> ARM 32-bit MCU -> microcontroller -> embedded processing IC. Key specifications include active-mode current consumption below 25 uA/MHz and sleep-mode current below 100 nA, making it one of the lowest-power Cortex-M23 devices in production. The on-chip crypto subsystem supports AES, SHA, and True Random Number Generation. Integrated peripherals include up to six SERCOM serial interfaces, a 12-bit ADC, 10-bit DAC, analog comparator, and the enhanced PTC for capacitive touch sensing. The operating voltage range of 1.62 V to 3.63 V supports single-cell lithium or 3.3 V system rails. The silicon integrates secure key storage and chip-level tamper resistance, targeting IoT endpoints that must comply with PSA Certified Level 1 or higher security assurance. The -MFTKPH suffix indicates a 24-pin VQFN with tape-and-reel packaging, factory-provisioned crypto keys, and the extended -40 °C to +125 °C industrial temperature grade. Typical applications include secure IoT sensor nodes, smart meters, medical wearables, capacitive-touch user interfaces, and battery-powered wireless endpoints. The combination of TrustZone isolation, hardware crypto, and sub-25 uA/MHz active current makes it well suited for energy-harvesting designs. Design tip: route the exposed pad (EP) to a continuous ground plane with at least nine thermal vias to keep junction temperature within the 125 °C limit. Use Atmel Studio 7 or MPLAB X IDE with the SAML11 device pack for development. This page synthesizes distributor stock levels, parametric drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet summary, helping engineers evaluate the ATSAML11D15A-MFTKPH for secure low-power designs.

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ATSAML11D15A-MU - 32KB Flash Cortex-M23 MCU | Microchip
ATSAML11D15A-MU

ATSAML11D15A-MU - 32KB Flash Cortex-M23 MCU | Microchip

The Microchip ATSAML11D15A-MU is a 32-bit ARM Cortex-M23 microcontroller from the SAM L11 family, featuring 32KB Flash, 8KB SRAM, ARM TrustZone technology, and chip-level security in a 24-pin VQFN (4x4 mm) package. It operates at up to 32 MHz and is targeted at ultra-low-power IoT and secure connected edge applications, consuming less than 25 uA/MHz in active mode and under 100 nA in sleep mode per the manufacturer product page. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash/SRAM), and programmable peripherals. Within the broader taxonomy, MCUs belong to microprocessors, which sit under integrated circuits and ultimately semiconductors. The Cortex-M23 core is an Armv8-M baseline implementation, positioned below Cortex-M3/M4 in performance but above Cortex-M0+ in features, with optional TrustZone-M security extensions for hardware-isolated trusted code execution. Key features include ARM TrustZone for Cortex-M technology enabling hardware-level secure/non-secure code isolation, secure key storage, chip-level tamper resistance, a True Random Number Generator (TRNG), and secure boot. Peripherals include SERCOM (configurable serial communication), ADC, timers, and event system. The device supports 1.6V to 3.6V supply voltage, making it suitable for battery-powered designs using lithium coin cells or 2xAA alkaline. Typical applications include IoT end nodes, smart sensors, secure authentication tokens, medical wearables, industrial wireless sensor nodes, and consumer devices requiring secure firmware update and anti-counterfeiting. The combination of TrustZone, tamper detection, and secure boot makes it Microchip's lowest-power MCU with hardware-rooted security. When designing with this device, ensure that the secure boot configuration is provisioned during production programming, as the TrustZone attribution table cannot be modified after lock. For ultra-low-power designs, leverage the SleepWalking feature to allow peripherals to wake the CPU only on relevant events, reducing average current draw to single-digit microamps in typical IoT duty cycles. This page synthesizes distributor pricing, verified drop-in alternatives from the SAM L11 family, and practical design notes not found in the manufacturer datasheet.

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ATSAML11D15A-MUKPH - 32KB Flash ARM Cortex-M23 Crypto MCU | Microchip
ATSAML11D15A-MUKPH

ATSAML11D15A-MUKPH - 32KB Flash ARM Cortex-M23 Crypto MCU | Microchip

The Microchip Technology ATSAML11D15A-MUKPH is a 32-bit ARM Cortex-M23 microcontroller from the SAM L11 family, integrating 32 KB Flash, 8 KB SRAM, and Microchip's chip-level security subsystem with ARM TrustZone technology. It operates at up to 32 MHz from a 1.62 V to 3.63 V supply and is housed in a 24-pin VQFN (4x4 mm) package with exposed thermal pad. According to Microchip product page, the device consumes less than 25 uA/MHz in active mode and less than 100 nA in sleep mode, making it the industry's lowest-power Cortex-M23 MCU with TrustZone. What is a low-power secure microcontroller? A low-power secure microcontroller is a single-chip processor that integrates CPU core, embedded Flash/SRAM, secure key storage, and hardware cryptography on one die. Within the embedded system hierarchy, the ATSAML11D15A belongs to the microcontroller (MCU) category, which sits below microprocessors and above simple digital logic ICs. Security-oriented MCUs add tamper detection, secure boot, and TrustZone-M isolation to prevent firmware extraction and code injection in connected IoT endpoints. Key features include ARM TrustZone-M for hardware-isolated secure/non-secure code regions, secure key storage with crypto-acceleration, a True Random Number Generator (TRNG), and chip-level tamper resistance. The device supports up to 32 KB Flash and 8 KB SRAM, plus 2 KB data Flash. Peripherals include SERCOM (configurable as UART/SPI/I2C), 12-bit ADC, DAC, timers, RTC, and PTC touch controller for capacitive touch interfaces. The integrated crypto block supports AES, SHA, and secure key provisioning. The ATSAML11D15A-MUKPH uses a 32-bit ARM Cortex-M23 core with single-cycle I/O access and a Memory Protection Unit (MPU). TrustZone-M enables isolation of secure firmware from non-secure application code, allowing OEMs to protect boot loaders, crypto keys, and IP. The exposed-pad VQFN-24 package provides a low thermal resistance path suitable for industrial operating ranges. Typical applications include IoT endpoint security, secure authentication tokens, smart utility meters, secure payment terminals, and tamper-resistant industrial sensors. The 24-pin VQFN and low power consumption also make it suitable for battery-powered wearable security devices. When designing with this MCU, allocate adequate decoupling (100 nF + 1 uF) close to VDD pins and provide a clean low-noise supply, as crypto operations are sensitive to VDD glitching. TrustZone-M requires careful linker script setup to partition secure/non-secure regions. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found on standard distributor listings.

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ATSAML11D15A-MUTKPH - 32KB Flash Cortex-M23 MCU | Microchip
ATSAML11D15A-MUTKPH

ATSAML11D15A-MUTKPH - 32KB Flash Cortex-M23 MCU | Microchip

The Microchip Technology ATSAML11D15A-MUTKPH is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with TrustZone security, hardware crypto, and enhanced Peripheral Touch Controller, delivering 32 KB of Flash and 8 KB of SRAM in a 24-pin VQFN (4x4 mm) package with exposed thermal pad. The device operates from 1.62 V to 3.63 V supply and runs at up to 32 MHz core clock. Per the manufacturer datasheet, the SAM L11 family is the industry's first Cortex-M23 microcontroller to integrate ARM TrustZone technology with secure key storage and chip-level tamper resistance, targeting IoT endpoint security. Active-mode current is less than 25 uA/MHz and sleep-mode current is less than 100 nA, making the part suitable for battery-powered endpoints. The "MUTKPH" suffix denotes tape-and-reel packaging, key-provisioned variant, in the 24-pin VQFN with exposed pad. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile and non-volatile memory, peripherals, and I/O. The Cortex-M23 core is an ARMv8-M baseline implementation optimized for energy efficiency and deterministic interrupt response, sitting between the Cortex-M0+ (smallest) and Cortex-M3/M4 (mid-range) in the ARM MCU hierarchy. MCU -> 32-bit MCU -> ARM Cortex-M MCU -> Cortex-M23 sub-family -> Microchip SAM L11 family -> this specific ATSAML11D15A-MUTKPH part. MCUs combine processor, memory, and peripherals to enable embedded control functions without external logic. Key features include TrustZone for ARMv8-M hardware isolation between secure and non-secure code, hardware cryptographic accelerators (AES, SHA, TRNG), secure boot and secure key storage with OTP, enhanced Peripheral Touch Controller (PTC) supporting touch buttons/sliders/proximity, SERCOM (configurable serial communication) interfaces, 12-bit ADC, and multiple timer/counter channels. The 24-pin VQFN package also includes an exposed pad for thermal dissipation. The part supports an extended operating temperature range, with the KPH suffix denoting the key-provisioned, tape-and-reel configuration. Architecturally, the SAM L11 combines a Cortex-M23 core with a Cortex-M0+ auxiliary core for security functions (TrustZone-aware isolation), a hardware crypto subsystem, secure boot ROM, and SRAM partitioning between secure and non-secure regions. The Peripheral Touch Controller (PTC) uses the QTouch library and supports both self-capacitance and mutual-capacitance touch sensing. Compared to the SAM L10 (no TrustZone), the L11 adds hardware crypto and secure boot, doubling the Flash/SRAM budget in some configurations and enabling use cases that require certified firmware updates. Typical applications include secure IoT endpoints requiring authenticated firmware updates (thermostats, door locks, industrial sensors), secure payment terminals and key fobs, battery-powered wearables and medical sensors with touch HMI, factory automation nodes with secure commissioning, and consumer appliances needing OTA updates. The combination of TrustZone, hardware crypto, and ultra-low-power sleep makes the part well suited to devices that must stay in the field for years on a single coin cell while remaining resilient to physical tamper. When designing with the ATSAML11D15A-MUTKPH, allocate the secure / non-secure memory partition early in firmware architecture. Place cryptographic keys, boot loaders, and OTA-verification code in the secure region, leaving non-secure code free to use the full Cortex-M23 instruction set. The exposed pad on the VQFN-24 must be soldered to a continuous ground copper pour for thermal and electrical performance. Per the datasheet, bypass VDD with a 100 nF and 1 uF ceramic pair placed within 3 mm of the pin, and use the PTC's reference design layout when implementing touch electrodes. This page synthesizes distributor pricing, drop-in alternatives from the same SAM L11 family and cross-brand Cortex-M23/M0+ MCU equivalents, and practical design notes not found in the standalone manufacturer datasheet.

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ATSAML11D15A-YUT - ARM Cortex-M23 MCU 32KB Flash TrustZone | Microchip
ATSAML11D15A-YUT

ATSAML11D15A-YUT - ARM Cortex-M23 MCU 32KB Flash TrustZone | Microchip

The Microchip Technology ATSAML11D15A-YUT is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with ARM TrustZone technology, offering 32KB Flash and 8KB SRAM in a 24-pin SSOP package. Operating at up to 32MHz with a CoreMark score supporting real-time deterministic workloads, it integrates chip-level security with secure key storage, chip-level tamper resistance, and cryptographic accelerators. The device consumes less than 25µA/MHz in active mode and less than 100nA in sleep mode, making it one of the lowest-power Cortex-M23 MCUs available. A microcontroller (MCU) is an integrated circuit that combines a processor core, program memory (Flash), data memory (RAM), and programmable peripherals on a single chip. Within the semiconductor hierarchy, microcontrollers belong to embedded processors, which sit under logic ICs and integrated circuits. The Cortex-M23 specifically is an ARMv8-M Baseline core designed for energy-constrained secure applications, sitting below Cortex-M3/M4/M7 in performance but adding TrustZone for ARM hardware-level isolation between secure and non-secure code regions. Key features include 32KB Flash with secure boot support, 8KB SRAM, ARM TrustZone-M technology, hardware AES accelerator, True Random Number Generator (TRNG), secure key storage, up to 32MHz operation, and a wide operating voltage range of 1.62V to 3.63V supporting both 1.8V and 3.3V system rails. The peripheral set includes multiple SERCOM (serial communication) interfaces, a 12-bit ADC, timers, and an RTC, providing flexibility for sensor and IoT nodes. The ATSAML11D15A-YUT is built on a low-leakage process and integrates a sophisticated power management unit with multiple sleep modes (Idle, Standby, Backup, and Off). The TrustZone isolation enables IP protection and secure firmware updates, critical for IoT endpoint devices vulnerable to physical and remote attacks. Cryptographic accelerators offload AES, SHA, and TRNG operations from the Cortex-M23 core, reducing active current and improving throughput. Typical applications include IoT end nodes with secure cloud connectivity, smart sensors requiring firmware authentication, building automation controllers, asset tracking devices, medical wearables with HIPAA-grade data protection, and industrial sensor hubs operating from coin-cell or energy-harvesting power sources. The combination of TrustZone and ultra-low sleep current uniquely targets battery-powered secure endpoints. When designing with this MCU, ensure the TrustZone configuration is finalized before production. The secure attribution unit (SAU) and implementation-defined attribution unit (IDAU) require careful setup to prevent security violations. Decoupling capacitors must be placed close to VDD pins per the manufacturer layout guidelines. This page synthesizes distributor pricing, drop-in alternatives from the same SAM L11 family, and practical design notes not consolidated in the manufacturer datasheet.

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ATSAML11D16A-MFT - 32MHz Cortex-M23 TrustZone MCU | Microchip
ATSAML11D16A-MFT

ATSAML11D16A-MFT - 32MHz Cortex-M23 TrustZone MCU | Microchip

The Microchip Technology ATSAML11D16A-MFT is a 32-bit ARM Cortex-M23 microcontroller with chip-level security and ARM TrustZone technology, featuring 64KB Flash and 16KB SRAM in a 24-pin VQFN (4x4 mm) package. It operates at up to 32 MHz, runs from 1.62V to 3.63V supply, and consumes less than 25 uA/MHz in active mode and less than 100 nA in sleep mode. The device targets the industrial 125C temperature grade (-MFT suffix). At its core, the SAML11 belongs to the SAM L11 family - the industry's first Cortex-M23 MCU with TrustZone for ARMv8-M, integrating secure boot, secure key storage, chip-level tamper resistance, and TrustZone-M address-space partitioning. As a low-power MCU, it fits between 8-bit legacy controllers (PIC, AVR) and Cortex-M0+/M4 mainstream devices, offering a balance of ultra-low power, deterministic Cortex-M performance, and hardware-rooted security. Key differentiating features include 64KB Flash, 16KB SRAM, a 12-bit 1 Msps ADC, two analog comparators, two I2C, two SPI, one I2S, up to six SERCOM channels, a full-speed USB device, a 32 kHz RTC, and a hardware cryptographic accelerator supporting AES, SHA, and TRNG. Typical applications include IoT end nodes, secure sensor hubs, smart meters, access control, medical wearables, and battery-powered industrial sensor transmitters. When designing with the SAML11, TrustZone configuration in the project (via MPLAB X + Harmony 3 or Atmel START) must be planned up-front because re-partitioning after firmware release requires secure-key provisioning. Compared to the SAM L10 sibling, the L11 adds TrustZone-M, secure boot ROM, and the crypto accelerator, while sharing the same 24-pin VQFN footprint for drop-in security upgrade paths. This page synthesizes distributor pricing, same-family drop-in alternatives, and TrustZone-aware design notes not consolidated on a single manufacturer page.

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