माइक्रोकंट्रोलर्स

उत्पाद (20,000+)

ATSAML11E14A-AFT - Cortex-M23 MCU 32MHz 16KB TQFP-32 | Microchip
ATSAML11E14A-AFT

ATSAML11E14A-AFT - Cortex-M23 MCU 32MHz 16KB TQFP-32 | Microchip

The Microchip ATSAML11E14A-AFT is a 32-bit ARM Cortex-M23 microcontroller IC from the SAM L11 family, integrating ARM TrustZone technology and chip-level security in a 32-pin TQFP (7x7 mm) package. It operates at up to 32 MHz and integrates 16 KB of Flash, 8 KB of SRAM, and a hardware crypto accelerator with secure key storage. What is an ARM Cortex-M23 microcontroller? The Cortex-M23 is an ARMv8-M baseline core designed for ultra-low-power, security-aware embedded applications, sitting below the Cortex-M33 in ARM's hierarchy and above legacy Cortex-M0/M0+ parts. SAM L11 MCUs belong to the broader 32-bit microcontroller category, which itself is a subcategory of embedded microcontrollers within integrated circuits. The Cortex-M23 architectural choice delivers Thumb-2 instruction set support, deterministic interrupt handling, and optional TrustZone for Cortex-M, allowing firmware to partition secure and non-secure execution domains at the hardware level. Key features of this part include less than 25 uA/MHz active current consumption, sub-100 nA sleep current, ARM TrustZone-M technology, secure boot with root-of-trust in Flash, hardware AES/SHA accelerator, secure key storage, chip-level tamper detection, and an operating temperature range up to +125C. Communication peripherals include SERCOM, I2C, SPI, and UART interfaces alongside ADC, DAC, timers, and PTC touch-supporting peripherals. Typical applications span IoT end nodes requiring secure firmware update, smart sensors with attestation, secure authentication tokens, medical wearables needing HIPAA-friendly data protection, building automation controllers, and battery-powered wireless sensor nodes where <100 nA sleep current directly extends operational lifetime on coin-cell batteries. Design consideration: TrustZone partitioning requires linker-script awareness - Secure code, Non-Secure Callable (NSC) veneers, and Non-Secure application code must be placed in distinct memory regions per the SAM L11 reference design. Misplaced code will trigger secure fault exceptions. This page synthesizes distributor pricing, drop-in alternatives drawn from the SAM L10/L11 family, and practical TrustZone design notes not consolidated in the manufacturer datasheet.

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ATSAML11E14A-AU - 32MHz Cortex-M23 MCU w/ TrustZone | Microchip
ATSAML11E14A-AU

ATSAML11E14A-AU - 32MHz Cortex-M23 MCU w/ TrustZone | Microchip

The Microchip Technology ATSAML11E14A-AU is a 32-bit ARM Cortex-M23 microcontroller belonging to the SAM L11 family, integrating ARM TrustZone technology, secure key storage, and a crypto-acceleration subsystem in a 32-pin TQFP (7x7 mm) package. It delivers 32 MHz CPU performance with 16 KB of Flash, 8 KB of SRAM, and consumes less than 25 uA/MHz in active mode while drawing under 100 nA in deep sleep. The device supports an operating voltage range of 1.62V to 3.63V and operates across the industrial -40C to +85C temperature range. A microcontroller (MCU) is a single-chip computer containing a CPU core, memory, and programmable peripherals that executes embedded firmware in real time. The Cortex-M23 core is the smallest and most energy-efficient ARMv8-M implementation, supporting the TrustZone security extension that partitions firmware and bus accesses into secure and non-secure worlds. The SAM L11 sits in the hierarchy ARM Cortex-M23 -> ARMv8-M MCU -> 32-bit microcontroller -> embedded processor -> semiconductor, and is positioned as Microchip's lowest-power secure MCU for IoT endpoints. Key features include TrustZone for ARMv8-M, a hardware crypto accelerator (AES, SHA, TRNG), secure boot with immutable root-of-trust, 16 KB Flash, 8 KB SRAM, up to 25 GPIO, enhanced Peripheral Touch Controller (PTC) for capacitive sensing, six SERCOM configurable serial interfaces, a 12-bit 1 Msps ADC, and two 16-bit timer/counters. Active mode draws under 25 uA/MHz and standby with full RAM retention drops below 100 nA, making it suitable for battery-powered endpoints that must run for years on a single coin cell. The ATSAML11E14A-AU is built on a low-power 90 nm process and ships with Microchip's MPLAB Harmony 3 firmware framework, ASF, and Atmel Studio toolchains. The silicon revision V-A enables chip-level tamper detection, secure debug, and a True Random Number Generator that meets NIST SP 800-22 statistical suites for cryptographic key generation. Typical applications include secure IoT sensor nodes, smart locks and access control, medical wearables requiring FDA-grade data integrity, utility metering with anti-tamper, secure BLE/LoRa peripherals, and consumer devices requiring OTA firmware authentication. The 32-TQFP footprint is breadboard-friendly and compatible with standard 0.8 mm pitch hand-soldering. When designing with this MCU, allocate 2 KB of Flash for the secure bootloader and reserve a dedicated GPIO for tamper-detect wiring. The crypto accelerator only accelerates AES-128/256 and SHA-256 in hardware; for ECC or RSA, use the TrustZone-protected firmware library to avoid leaking private keys over the debug interface. This page synthesizes distributor pricing, drop-in package-equivalent alternatives from the same SAM L11 family, and practical TrustZone provisioning notes not aggregated elsewhere in the manufacturer datasheet.

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ATSAML11E14A-AUT - ARM Cortex-M23 MCU 16KB Flash TQFP-32
ATSAML11E14A-AUT

ATSAML11E14A-AUT - ARM Cortex-M23 MCU 16KB Flash TQFP-32

The Microchip Technology ATSAML11E14A-AUT is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller featuring 16KB Flash, 8KB SRAM, and integrated ARM TrustZone technology, housed in a 32-pin TQFP (7x7 mm) package. This device is part of the SAM L11 family, marketed by Microchip as the industry's first Cortex-M23 MCU with chip-level security and hardware isolation through ARM TrustZone. The CPU core runs at up to 32 MHz, balancing performance with sub-25 uA/MHz active power consumption. An ARM Cortex-M23 microcontroller is a 32-bit embedded processor based on the ARMv8-M baseline architecture, designed for low-power, secure IoT endpoints. It is the smallest ARMv8-M core with optional TrustZone-M security extensions, making it suitable for applications requiring hardware-isolated secure and non-secure code execution. Microcontrollers in this class typically integrate Flash, SRAM, and peripherals into a single chip, serving as the central processing unit in embedded systems from sensor nodes to home appliances. Key features of the ATSAML11E14A-AUT include secure key storage, chip-level tamper resistance, support for the SAM L11 secure boot flow, and integrated crypto accelerators. The device supports a 1.6V to 3.6V supply voltage range, offering flexibility across battery-powered and industrial applications. Peripherals include multiple SERCOM interfaces (configurable as UART/SPI/I2C), a 12-bit ADC, timers, and a real-time clock. The low-power design enables less than 100 nA in deep sleep with full SRAM retention and RTC running. The ATSAML11E14A-AUT is engineered for IoT endpoint security, meeting PSA Certified Level 1 requirements with TrustZone-M isolation between trusted and non-trusted firmware. The integrated cryptographic modules support AES, SHA, and secure key provisioning. Its small TQFP-32 footprint and low power profile make it suitable for devices with constrained PCB area and battery life. Typical applications include secure IoT sensors, smart home devices, wearables, fitness trackers, industrial sensor endpoints, and battery-powered security tokens. Its TrustZone capability suits firmware update verification and secure credential storage. When designing with this device, ensure proper TrustZone-M configuration in your linker scripts and boot sequence. Decoupling capacitors should be placed close to the VDDCORE and VDDIO pins, and the NRST pin requires an external pull-up for reliable reset behavior. This page synthesizes distributor pricing, verified drop-in alternatives from the SAM L10/L11 family, and practical design notes not found in the manufacturer datasheet alone.

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ATSAML11E14A-MF - 32MHz Cortex-M23 MCU 16KB Flash TrustZone | Microchip
ATSAML11E14A-MF

ATSAML11E14A-MF - 32MHz Cortex-M23 MCU 16KB Flash TrustZone | Microchip

The Microchip ATSAML11E14A-MF is an ARM Cortex-M23 microcontroller featuring 16 KB Flash, 8 KB SRAM, ARM TrustZone technology, and integrated crypto accelerators in a 32-pin VQFN (5x5 mm) package. It operates at up to 32 MHz, supports 1.6V to 3.6V supply, and targets ultra-low-power secure IoT endpoints with active current under 25 uA/MHz and sleep current under 100 nA. An ARM Cortex-M23 MCU is a 32-bit microcontroller built on the ARMv8-M baseline architecture. The Cortex-M23 is the smallest and most energy-efficient of the ARMv8-M family, optionally supporting TrustZone for hardware-isolated secure execution. The SAM L11 family extends the Cortex-M23 with chip-level tamper resistance, secure key storage, and a TRNG (true random number generator), positioning the part for connected devices that must protect firmware, keys, and sensor data against physical and remote attacks. Within Microchip's portfolio SAM L11 belongs to the low-power MCU family alongside SAM L10, SAM L21, and SAM D family microcontrollers. Key features include a 32-bit single-cycle multiply hardware MAC, 32 KB SRAM with ECC, brown-out detection and reset, DMA, POR, PWM, and WDT. Communication interfaces include I2C, SPI, LINbus, and UART/USART. Up to 25 GPIO pins are available on the 32-pin VQFN. Security blocks include TrustZone-M, secure boot, hardware AES/SHA, and a True Random Number Generator backed by tamper-detection pins, making the part suited for PSA Certified Level 1 designs. The architecture combines a Cortex-M23 core with a low-power peripheral set and an event system that lets peripherals wake the CPU without interrupt overhead. The crypto subsystem offloads AES and SHA, so secure TLS handshakes and firmware verification run in tens of milliseconds rather than blocking the main thread. Voltage scaling from 1.6V to 3.6V and a low-power sleep mode below 100 nA enable multi-year coin-cell operation. Typical applications include secure IoT sensor nodes, smart meters, access control readers, medical wearables, and asset-tracking tags that require authenticated firmware and encrypted sensor telemetry. The SAM L11 also suits building automation, factory floor sensors, and connected appliances. When designing with this part, budget VDD decoupling at each supply pin and route the exposed pad to a continuous ground plane for thermal dissipation. Configure TrustZone linker regions early in the BSP so secure and non-secure code partitions are enforced by hardware, not convention. This page synthesizes distributor pricing, drop-in alternatives within the SAM L11 family and across vendors, and practical design notes not found in the manufacturer datasheet alone.

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ATSAML11E14A-MFT - 32MHz Cortex-M23 MCU 16KB Flash | Microchip
ATSAML11E14A-MFT

ATSAML11E14A-MFT - 32MHz Cortex-M23 MCU 16KB Flash | Microchip

The Microchip Technology ATSAML11E14A-MFT is a 32-bit ARM Cortex-M23 microcontroller from the SAM L11 family, featuring TrustZone-M technology and dedicated hardware cryptography in a 32-pin VQFN (5x5 mm) package. It integrates 16 KB of Flash, 8 KB of SRAM, and operates at a core frequency of 32 MHz while consuming less than 25 uA/MHz in active mode and less than 100 nA in sleep mode. A microcontroller (MCU) is a compact integrated circuit that combines a CPU core, volatile and non-volatile memory, and programmable peripherals on a single die. The Cortex-M23 family belongs to the ARMv8-M baseline architecture, optimized for energy efficiency and deterministic interrupt response, making it ideal for battery-powered and secure embedded designs. The SAM L11 extends this baseline with ARM TrustZone technology for hardware-enforced isolation between secure and non-secure code, placing it at the intersection of low-power MCUs and security-focused microcontrollers in the broader semiconductor taxonomy. Key features of the ATSAML11E14A-MFT include an integrated crypto accelerator supporting AES, SHA, and True Random Number Generator (TRG), secure key storage, chip-level tamper resistance, and a peripheral touch controller (PTC). It provides multiple SERCOM interfaces, a 12-bit ADC, a 10-bit DAC, operational amplifiers, and analog comparators, enabling full signal-chain integration on a single device. At the architectural level, the SAM L11 leverages the Cortex-M23 core with a single-cycle multiplier and hardware divide, supported by the Microchip MPLAB X and Atmel Studio ecosystem. The device is qualified to industrial temperature ranges up to +125 C, supporting demanding automotive and industrial environments. Its low-power SleepWalking peripherals and Event System allow autonomous peripheral interaction without CPU wake-up, extending battery life in always-on IoT nodes. Typical applications include secure IoT endpoints, smart metering, wireless sensor nodes, industrial control modules, secure payment terminals, and low-power edge devices requiring hardware root-of-trust. It is also used in automotive body electronics and connected lighting where deterministic secure boot is required. When designing with the ATSAML11E14A-MFT, ensure the 32-VQFN (5x5 mm) thermal pad is properly soldered to a sufficient copper pour for heat dissipation. Use the TrustZone linker to partition secure and non-secure code regions, and configure the Secure Access Manager (SAM) to enforce peripheral access policy. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives in the 32-VQFN footprint, and practical design notes not aggregated on a single manufacturer page, giving engineers a faster cross-reference experience.

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ATSAML11E14A-MU - 32MHz Cortex-M23 TrustZone MCU 16KB Flash | Microchip
ATSAML11E14A-MU

ATSAML11E14A-MU - 32MHz Cortex-M23 TrustZone MCU 16KB Flash | Microchip

The Microchip ATSAML11E14A-MU is an ARM Cortex-M23 microcontroller that operates at up to 32 MHz, featuring 16 KB of Flash and 8 KB of SRAM in a 32-pin VQFN (5x5 mm) package. It is built on the SAM L11 platform, Microchip's first MCU family to integrate ARM TrustZone technology for hardware-isolated secure and non-secure code execution. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripherals. Within the embedded hierarchy, the ATSAML11E14A-MU is an ARM Cortex-M23 core -> Cortex-M family -> 32-bit RISC processor -> embedded MCU -> semiconductor. The Cortex-M23 is the smallest and most energy-efficient ARMv8-M core, designed for IoT edge nodes that benefit from TrustZone-M for firmware isolation. Key features include ARM TrustZone-M hardware isolation, secure boot with secure key storage, chip-level tamper resistance, and a True Random Number Generator (TRNG). Active-mode current is under 25 uA/MHz, and sleep-mode current drops below 100 nA, making the device suitable for battery-powered applications. The part supports 1.6V to 3.6V supply operation and includes a 32-bit Cortex-M23 core, 16 KB Flash, 8 KB SRAM, and a 32-pin VQFN package with an exposed thermal pad. From an architectural standpoint, the SAM L11 integrates a Cortex-M23 core, a separate Cortex-M0+ core dedicated to secure-boot firmware, on-chip voltage regulation, and a TrustZone-aware bus matrix. The crypto block includes AES, SHA, and secure key storage; the peripheral set includes SERCOM, ADC, DAC, and timers. Together, these features provide defense-grade security at sub-dollar BOM cost. Typical applications include IoT end nodes, secure sensor hubs, smart utility meters, medical wearables, and HomeKit/Zigbee/Thread/BLE bridge devices. For each use case, the MCU balances low active current, hardware-enforced secure/non-secure isolation, and a small 5x5 mm footprint. When designing with the ATSAML11E14A-MU, allocate the secure region in the linker script and configure the TrustZone Attribution Unit (TAU) before non-secure code is generated. Use MPLAB X IDE with MCC harmony for peripheral configuration, and observe VDD decoupling guidelines from the SAM L11 datasheet. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a one-stop view of the part's value proposition.

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ATSAML11E14A-MUT - 32MHz Cortex-M23 MCU 16KB Flash 32-VQFN
ATSAML11E14A-MUT

ATSAML11E14A-MUT - 32MHz Cortex-M23 MCU 16KB Flash 32-VQFN

The Microchip Technology ATSAML11E14A-MUT is an ARM Cortex-M23 based SAM L11 microcontroller with 32-bit processing at 32 MHz, 16 KB of Flash memory, and 8 KB of SRAM, housed in a 32-pin VQFN (5x5 mm) package. It integrates chip-level security with ARM TrustZone technology, secure key storage, and chip-level tamper resistance, and is rated for industrial temperature operation up to 85C. The SAM L11 family is positioned as the industry's first and lowest-power Cortex-M23 MCU with hardware-based security, consuming less than 25 uA/MHz in active mode and less than 100 nA in sleep mode. A microcontroller (MCU) is a compact integrated circuit that combines a CPU core, program memory, working RAM, and a rich set of peripherals on a single silicon die. The Cortex-M23 is an ARMv8-M Baseline architecture core that brings TrustZone for Cortex-M hardware isolation, deterministic interrupts, and Thumb-2 instruction efficiency to cost-sensitive embedded applications. Within the broader semiconductor taxonomy, microcontrollers sit below microprocessors and application processors; the SAM L11 belongs to the ultra-low-power security-enabled MCU class, between general-purpose MCUs and secure-element ICs. Key features include hardware cryptographic accelerators (AES, SHA, True Random Number Generator), TrustZone isolation between secure and non-secure code regions, a 12-bit 1 MSPS ADC, multiple SERCOM serial interfaces that can be configured as UART/SPI/I2C, and a full-speed USB device port. The 16 KB Flash supports secure boot, and the part ships in Tape & Reel (T&R) packaging for high-volume SMT assembly. The Crypto variant suffix 'C' (denoted by the T at end of MUT) indicates this is the secure TrustZone part, distinguishing it from the non-secure baseline variants in the same pinout. Typical applications include IoT end nodes that require secure firmware updates, sensor hubs with authenticated telemetry, smart-meter secure elements, medical wearables requiring HIPAA-style data isolation, and industrial keyless-entry or asset-tracking modules. The compact 32-VQFN footprint and 85C rating make it well-suited for space-constrained, security-conscious edge devices. When designing with this MCU, allocate sufficient decoupling (100 nF + 1 uF minimum) close to VDD pins, and place a 32.768 kHz crystal across the XIN/XOUT pins if low-power RTC operation is required. TrustZone-aware firmware development is essential; consult the SAM L11 TrustZone application note from Microchip before porting legacy Cortex-M code.

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ATSAML11E14A-UUTKPH - Cortex-M23 MCU 16KB Flash | Microchip
ATSAML11E14A-UUTKPH

ATSAML11E14A-UUTKPH - Cortex-M23 MCU 16KB Flash | Microchip

The Microchip Technology ATSAML11E14A-UUTKPH is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with 16 KB Flash, 8 KB SRAM, and integrated ARM TrustZone-M security, supplied in a 32-ball WLCSP (2.79 x 2.79 mm). It runs at up to 32 MHz, supports key-provisioned secure boot, and integrates on-chip peripherals including SERCOM, ADC, DAC, OPAMP, AC, and PTC (Peripheral Touch Controller). A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces onto one silicon die. The Cortex-M23 sub-family targets low-power, deterministic embedded applications, balancing energy efficiency with deterministic interrupt response and a modern ARMv8-M instruction set. The SAM L11 family within which this part sits adds chip-level security primitives on top of the standard M23 core. Key features include active-mode current below 25 uA/MHz and deep-sleep current below 100 nA, enabling years of battery life in always-on IoT endpoints. TrustZone-M isolation partitions firmware into secure and non-secure worlds, the Crypto accelerator supports AES and secure key storage, and the on-die tamper detector flags physical attack attempts. The 16 KB Flash variant in this MPN targets cost-sensitive secure nodes with smaller code footprints. The architecture pairs an ARMv8-M baseline core with a low-leakage process, multi-domain power gating, and Microchip's Event System for inter-peripheral signaling without CPU wakeups. The result is a deterministic 32-bit core that consumes roughly half the energy per instruction of older Cortex-M0+ devices, while offering modern security and DSP extensions for signal conditioning. Typical applications include IoT end nodes with secure firmware updates, battery-powered wireless sensor transmitters, secure access control peripherals, smart metering modules, and human-machine interface controllers using the integrated touch peripheral. TrustZone isolation makes it a strong fit for any product that must isolate vendor firmware from user code or guard cryptographic material. When designing with this part, plan the secure/non-secure memory map early; misconfigured TrustZone attributes are the most common source of field failures. Verify WLCSP-32 thermal and mechanical stress margins with your contract manufacturer, since wafer-level packages demand controlled PCB pad finish and reflow profiles. This page synthesizes distributor pricing, same-family drop-in alternatives, and design notes that go beyond the manufacturer datasheet to accelerate BOM validation.

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ATSAML11E15A-AF - 32MHz Cortex-M23 MCU w/ TrustZone | Microchip
ATSAML11E15A-AF

ATSAML11E15A-AF - 32MHz Cortex-M23 MCU w/ TrustZone | Microchip

The Microchip Technology ATSAML11E15A-AF is a 32-bit ARM Cortex-M23 microcontroller with ARM TrustZone technology, operating at up to 32 MHz, delivering 32 KB of Flash and 8 KB of SRAM in a 32-pin TQFP (7x7 mm) package. It is the industry's first ultra-low-power Cortex-M23 MCU with chip-level security, consuming less than 25 uA/MHz in active mode and less than 100 nA in sleep mode, designed for IoT edge nodes that require both low energy and hardware-rooted security. The "-AF" suffix denotes the TQFP-32 tray packaging variant of the base ATSAML11E15A part. 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 — timers, ADC/DAC, communication interfaces, and security modules — into one device. Within the broader semiconductor hierarchy, microcontrollers sit under microprocessors and embedded controllers and are widely deployed in battery-powered IoT, sensor processing, motor control, and human-machine interface designs. The SAM L11 family combines a Cortex-M23 core (ARMv8-M baseline with TrustZone extension) with on-chip crypto acceleration, secure key storage, and chip-level tamper resistance — a stack normally reserved for higher-cost secure elements. Key differentiating specifications include: ARM TrustZone-M for hardware-enforced secure/non-secure partitioning; integrated crypto accelerators (AES, SHA, TRNG); an enhanced Peripheral Touch Controller (PTC) supporting noise-robust capacitive touch; SERCOM configurable serial interfaces (up to 6); 12-bit ADC, 10-bit DAC, and on-chip op-amps. The device supports 1.62–3.63 V core supply with separate backup domain, brown-out detection, and RTC running from a 32.768 kHz crystal or internal oscillator. Architecturally, the Cortex-M23 core executes the Thumb/Thumb-2 instruction set with hardware single-cycle multiply, delivering 0.9 DMIPS/MHz — adequate for sensor-fusion loops and secure boot sequences. The SAM L11 platform layers TrustZone on top of the Cortex-M23 baseline: secure code runs in the protected region with hardware isolation, and the on-chip crypto block eliminates the latency of external secure-element I2C transactions. Compared with the Cortex-M0+ based SAM L10, the L11 adds TrustZone and the crypto subsystem at the cost of marginally higher active current. Typical applications include secure IoT end nodes (TLS handshake acceleration, secure boot, OTA key management), battery-powered smart sensors (touch buttons, environmental monitoring, medical wearables), and edge devices requiring hardware-attested firmware identity (asset tracking, smart locks, industrial sensors). Designers choose the SAM L11 when they need both Arm TrustZone isolation AND low active/sleep power in the same device — without paying for a Cortex-M33 class core. When designing with this MCU, ensure your linker script enforces TrustZone region boundaries (SAU/NSC settings) and that your secure boot loader validates firmware signatures before jumping to non-secure application code. The on-chip PTC requires careful PCB layout — keep the touch sensor traces short and shield them from high-current switching nodes. Plan an external 32.768 kHz crystal only if you need RTC-grade timing; otherwise the internal oscillator is sufficient for sleep-mode wake scheduling. This page synthesizes distributor pricing, drop-in same-package alternatives from the same SAM L11 family, and practical TrustZone + low-power design notes not collated in the manufacturer datasheet.

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ATSAML11E15A-AFT - 32KB Flash Cortex-M23 MCU | Microchip | TrustZone
ATSAML11E15A-AFT

ATSAML11E15A-AFT - 32KB Flash Cortex-M23 MCU | Microchip | TrustZone

The Microchip Technology ATSAML11E15A-AFT is a 32-bit ARM Cortex-M23 microcontroller in the SAM L11 family with 32 KB Flash, 8 KB SRAM, and ARM TrustZone-M security technology in a 32-pin TQFP (7x7 mm) package. It runs at up to 32 MHz with active current under 25 uA/MHz and sleep current under 100 nA, positioning it as the industry's first lowest-power Cortex-M23 MCU with chip-level security. The part suffix -AFT denotes the 125 C automotive temperature grade and Tape & Reel packaging. What is a microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripheral interfaces such as ADC, DAC, timers, and communication controllers. The SAM L11 belongs to the broader hierarchy of low-power 32-bit microcontrollers -> ARM Cortex-M microcontrollers -> embedded microcontrollers -> integrated circuits. The Cortex-M23 core implements the ARMv8-M Baseline architecture with TrustZone-M hardware-enforced isolation between secure and non-secure code regions. Key features include a 12-bit 1 Msps ADC, a 10-bit DAC, two analog comparators, one operational amplifier, a Peripheral Touch Controller (PTC) for capacitive touch sensing, up to six SERCOM configurable serial communication peripherals, and a Crypto accelerator supporting AES, SHA, and True Random Number Generator (TRNG). The device also includes secure key storage, chip-level tamper resistance, and Secure Boot with immutable root-of-trust. The SAM L11 architecture pairs a single-cycle I/O-bus with an advanced low-power bus matrix, enabling event-driven peripheral operation without CPU intervention. Sleep current below 100 nA is achieved through Microchip's proprietary power-saving techniques including backup domain retention, RTC with calendar mode, and configurable SRAM retention banks. Typical applications include IoT end nodes with secure firmware update, smart sensors, access control systems, medical wearables, and industrial edge devices requiring authenticated communication. The integrated Crypto engine and TrustZone-M make it particularly suitable for designs bound by PSA Certified Level 1 or upcoming IoT security regulations. Design consideration: when routing the 32-pin TQFP layout, allocate the bottom-layer ground pour under the exposed thermal pad to maximize heat spreading and minimize supply ripple. Always populate the decoupling network with one 100 nF per VDD pin plus a single 4.7 uF bulk capacitor within 5 mm of the package. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet.

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ATSAML11E15A-AFTKPH - 32KB Cortex-M23 MCU with TrustZone | Microchip
ATSAML11E15A-AFTKPH

ATSAML11E15A-AFTKPH - 32KB Cortex-M23 MCU with TrustZone | Microchip

The Microchip ATSAML11E15A-AFTKPH is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller from the SAM L11 family, featuring ARM TrustZone technology, on-chip crypto acceleration, and 32 KB Flash in a 32-pin TQFP package. It operates at up to 32 MHz core frequency with less than 25 uA/MHz active current and less than 100 nA in sleep mode, making it one of the lowest-power Cortex-M23 MCUs in the industry. The -AFTKPH suffix indicates a 125 C temperature grade, Crypto-enabled, Tape & Reel packaging, and key-provisioned variant. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash and SRAM), and peripherals. The Cortex-M23 is ARM's smallest and most energy-efficient application processor, implementing the ARMv8-M baseline architecture with TrustZone for hardware-isolated secure and non-secure code execution. The SAM L11 family extends this with chip-level tamper resistance, secure key storage, and an enhanced Peripheral Touch Controller (PTC) for capacitive sensing. Key features include 32 KB Flash, 8 KB SRAM, 1.62 V to 3.63 V operating voltage, ARM TrustZone, hardware AES/SHA crypto accelerator, true random number generator (TRNG), secure boot, and an enhanced PTC for touch applications. The 32-pin TQFP package offers ease of hand prototyping and breadboard compatibility for low-volume industrial designs. Architecturally, the ATSAML11E15A integrates an ARM Cortex-M23 core with Microchip's proprietary picoPower technology, a flexible event system, and Microchip's TrustZone-managed secure bootloader. Hardware crypto acceleration offloads AES-128/256 and SHA-256 from software, reducing CPU load and enabling real-time encrypted communication without sacrificing power budget. Typical applications include IoT secure sensor nodes, smart metering, wearable health monitors, secure door locks, and industrial HMI with touch buttons. Its low sleep current also makes it well suited to battery-powered devices such as wireless remote controls and asset trackers. When designing with this device, note that the -AFTKPH variant ships with pre-provisioned root keys and certificates, eliminating the need for in-line provisioning during manufacturing. Plan for 4 KB of Flash to be reserved for the secure bootloader and TrustZone secure services. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single reference for evaluation and sourcing decisions.

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ATSAML11E15A-AU - 32MHz Cortex-M23 MCU w/ TrustZone | Microchip
ATSAML11E15A-AU

ATSAML11E15A-AU - 32MHz Cortex-M23 MCU w/ TrustZone | Microchip

The Microchip Technology ATSAML11E15A-AU is a 32-bit ARM Cortex-M23 microcontroller running at up to 32 MHz with 32 KB of Flash, 8 KB of SRAM, and 2 KB of data EEPROM, housed in a 32-pin TQFP (7x7 mm) industrial-temperature-grade package. It consumes less than 25 µA/MHz in active mode and less than 100 nA in sleep mode, and it integrates ARM TrustZone technology for hardware-isolated secure execution. A microcontroller (MCU) is a compact integrated circuit that combines a CPU core, program memory, data memory, and a rich set of on-chip peripherals such as timers, ADC/DAC, communication interfaces, and GPIO. In the broader system hierarchy, the ATSAML11E15A sits at the Cortex-M23 tier of the Cortex-M family, within the SAM L11 sub-family of 32-bit microcontrollers, under Microchip's SAM family, which itself is part of the wider Microcontrollers category of Integrated Circuits. It is specifically engineered for ultra-low-power and security-critical edge IoT nodes where both battery life and tamper resistance are mandatory. Key features include ARM TrustZone for Cortex-M, secure key storage, chip-level tamper resistance, an event system, a 12-bit 1 Msps ADC, a 10-bit DAC, two SERCOM interfaces (configurable as I2C/SPI/USART), and an integrated capacitive touch peripheral. The 32 KB Flash is organized as 32K x 8 and supports in-system programming via the SWD interface. The microcontroller operates over the full 1.62 V to 3.63 V supply range, accepting both single-cell Li-ion and 3.3 V system rails. The Cortex-M23 core implements the ARMv8-M baseline architecture with TrustZone extensions, allowing secure and non-secure code to coexist on the same die. Hardware crypto accelerators (AES, SHA, TRNG) and secure boot help protect firmware IP from physical and remote attacks. A two-wire SWD debug interface supports both secure and non-secure debugging domains. Typical applications include secure IoT endpoints, wearable health and fitness devices, smart-home sensor hubs, industrial sensor nodes with secure firmware updates, battery-powered medical peripherals, and tamper-resistant metering or access-control products. Designers choose this part when both energy budget and on-chip security are first-order constraints. When designing with this device, allocate pin budget carefully: the 32-pin TQFP provides modest GPIO headroom, so plan peripheral multiplexing against the SERCOM and timer resources before locking the PCB. Watch the absolute-maximum VDD of 3.63 V when using a Li-ion/USB supply rail.

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ATSAML11E15A-AUKPH - Cortex-M23 MCU w/ TrustZone, 32KB Flash | Microchip
ATSAML11E15A-AUKPH

ATSAML11E15A-AUKPH - Cortex-M23 MCU w/ TrustZone, 32KB Flash | Microchip

The Microchip Technology ATSAML11E15A-AUKPH is an ARM Cortex-M23 based 32-bit microcontroller featuring chip-level security with ARM TrustZone technology, 32 KB of Flash, 8 KB of SRAM, and a 32 MHz CPU clock, packaged in a 32-pin TQFP (7x7 mm) for industrial-grade applications. As part of the SAM L11 family, this MCU is positioned as the industry's lowest-power Cortex-M23 device, consuming less than 25 µA/MHz in active mode and less than 100 nA in sleep mode, making it ideal for battery-powered and energy-harvesting end nodes. The Cortex-M23 core is the smallest and most energy-efficient ARMv8-M architecture implementation, featuring TrustZone for hardware-isolated secure and non-secure code execution, a single-cycle hardware multiplier, and a tightly-coupled Nested Vectored Interrupt Controller (NVIC). Combined with on-chip secure key storage, chip-level tamper resistance, and Microchip's Trustonic Kinibi-M library, the SAM L11 enables PSA Certified Level 1 security out of the box for IoT edge devices. Key features include a 32 KB Flash program memory, 8 KB SRAM, 2 KB EEPROM emulation area, a 12-bit 1 Msps ADC, two analog comparators, two I2C, two SPI, one I2S, up to four SERCOM channels, and a Real-Time Clock (RTC) with calendar mode. The device operates from 1.62 V to 3.63 V supply, supports industrial -40 °C to +85 °C temperature range, and integrates a 32 kHz crystal oscillator with PLL for flexible clocking. Multiple low-power modes including STANDBY (with full SRAM retention), IDLE, and OFF enable designers to meet aggressive energy budgets for always-on sensor applications. Typical applications include secure IoT end nodes, smart meters, wireless sensor nodes, asset tracking devices, medical wearables, and industrial HMI controllers. The ARM TrustZone-M isolation makes it especially suited for devices requiring firmware authentication, secure boot, and protection against physical tamper attacks.

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ATSAML11E15A-AUT - 32KB Flash Cortex-M23 TrustZone MCU | Microchip
ATSAML11E15A-AUT

ATSAML11E15A-AUT - 32KB Flash Cortex-M23 TrustZone MCU | Microchip

The Microchip Technology ATSAML11E15A-AUT is an ARM Cortex-M23 based 32-bit microcontroller from the SAM L11 family, featuring 32KB Flash, 8KB SRAM, ARM TrustZone technology, and secure key storage in a 32-pin TQFP (7x7) package. It operates at up to 32 MHz, runs from 1.62V to 3.63V, and consumes less than 25 uA/MHz in active mode and less than 100 nA in sleep mode, making it ideal for battery-powered IoT endpoints. An ARM Cortex-M23 microcontroller is a 32-bit embedded processor core based on the ARMv8-M architecture, designed for low-power applications that require hardware-isolated security. TrustZone for ARMv8-M extends this concept by partitioning code and memory into Secure and Non-Secure worlds at the bus level, enabling chip-level isolation between trusted firmware (bootloader, crypto keys) and application code. The Cortex-M23 sits within the hierarchy: microcontroller -> embedded processor -> SoC -> semiconductor. The SAM L11 family is Microchip's lowest-power Cortex-M23 line with integrated security primitives. Key features of the ATSAML11E15A-AUT include TrustZone-M hardware isolation, secure key storage, chip-level tamper resistance, a 12-bit ADC, multiple SERCOM interfaces for I2C/SPI/UART, and an AES crypto accelerator. The device supports sleep modes down to <100 nA, integrated real-time clock, and a wide operating temperature range suitable for industrial environments. The SAM L11 architecture pairs the Cortex-M23 core with a single-cycle hardware multiplier, Microchip's event system for low-latency peripheral signaling, and a peripheral touch controller. Built on an ultra-low-power process, the device integrates an enhanced Power Management Unit (PMU) with multiple sleep modes and DC-DC buck converter support for maximum efficiency at low load currents. Typical applications include IoT sensor nodes, secure authentication tokens, smart meters, wearable health monitors, and industrial HMI panels. The combination of TrustZone, secure boot, and crypto acceleration makes it particularly well-suited for edge devices that require authenticated firmware updates and tamper-resistant key storage. When designing with this MCU, ensure the Secure/Non-Secure memory partition is mapped at link time using the Microchip Studio or MPLAB X IDE TrustZone linker scripts. Decoupling capacitors (100 nF + 1 uF) must be placed close to VDD pins, and unused GPIOs should be configured as outputs or inputs with internal pull to minimize leakage. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. The SAM L11 datasheet is referenced throughout, with parametric data traced to real distributor listings.

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ATSAML11E15A-MFT - 32KB Flash Cortex-M23 MCU, TrustZone | Microchip
ATSAML11E15A-MFT

ATSAML11E15A-MFT - 32KB Flash Cortex-M23 MCU, TrustZone | Microchip

The Microchip Technology ATSAML11E15A-MFT is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with ARM TrustZone technology, featuring 32 KB of Flash and 8 KB of SRAM, housed in a 32-pin VQFN (5x5 mm) package with exposed pad. Operating at up to 32 MHz from a 1.62 V to 3.63 V supply, the device integrates chip-level security, secure key storage, and tamper resistance in an exceptionally compact footprint. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash for program code and SRAM for runtime data), and a rich set of peripherals. The ARM Cortex-M23 is a 32-bit core implementing the ARMv8-M baseline architecture, designed for energy-efficient embedded applications. The SAM L11 family is the industry's first Cortex-M23 MCU to integrate ARM TrustZone for hardware-isolated secure and non-secure code execution, making it a foundational element of secure IoT edge nodes. Key features of the ATSAML11E15A-MFT include 32 KB Flash, 8 KB SRAM, a 32 MHz maximum CPU clock, 12-bit ADC, 10-bit DAC, analog comparator, and PTC (Peripheral Touch Controller) for capacitive touch sensing. The device achieves less than 25 µA/MHz active current and less than 100 nA in sleep mode, making it one of the lowest-power Cortex-M23 MCUs available. Security features include secure boot, hardware Crypto accelerators (AES, SHA), secure key storage, and true random number generator (TRNG). Architecturally, the SAM L11 integrates multiple low-power modes (Idle, Standby, Backup, and Off) with sleepwalking peripherals, allowing autonomous peripheral operation without CPU wake-up. The Cortex-M23 core implements the ARMv8-M TrustZone extension with separate secure/non-secure memory regions enforced by the Memory Protection Unit, providing hardware root-of-trust functionality for connected devices. Typical applications include IoT end nodes requiring secure firmware updates, smart sensors with tamper detection, secure authentication tokens, low-power wireless sensor nodes, capacitive touch user interfaces, and battery-powered industrial sensors. The wide operating voltage range supports direct connection to 1.5 V alkaline or 3.3 V regulated supplies. When designing with this device, carefully plan TrustZone memory partitioning early in firmware development - partitioning decisions made after the fact require code refactoring. The VQFN-32 package exposes a thermal pad that must be soldered to the PCB ground pour for optimal thermal and electrical performance. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, security feature comparison, and low-power design notes not found in the standalone manufacturer datasheet.

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

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

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.

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ATSAML11E15A-MU - 32KB Flash Cortex-M23 MCU w/ TrustZone | Microchip
ATSAML11E15A-MU

ATSAML11E15A-MU - 32KB Flash Cortex-M23 MCU w/ TrustZone | Microchip

The Microchip Technology ATSAML11E15A-MU is a 32-bit ARM Cortex-M23 microcontroller featuring ARM TrustZone technology, 32 KB of Flash, 8 KB of SRAM, and a 32-pin VQFN (5x5 mm) package. It operates at a core frequency of 32 MHz and is engineered as the industry's lowest-power Cortex-M23 MCU with chip-level security. Active-mode current is less than 25 uA/MHz and sleep-mode current is less than 100 nA, making it ideal for battery-powered edge devices. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals such as timers, communication interfaces, and analog blocks. The Cortex-M23 is an ARMv8-M Baseline core that introduces TrustZone for ARMv8-M, the smallest and most energy-efficient implementation of hardware-isolated trusted execution. The SAM L11 family from Microchip sits inside the wider 32-bit MCU hierarchy (ARM Cortex-M -> 32-bit MCU -> microcontroller -> semiconductor), and it is positioned as Microchip's ultra-low-power secure MCU line for IoT endpoints. The ATSAML11E15A-MU integrates secure key storage, chip-level tamper resistance, hardware crypto accelerators (AES, SHA, TRNG), and an enhanced Peripheral Touch Controller (PTC) for capacitive touch and proximity sensing. Its 6 SERCOM (serial communication) interfaces can each be configured as UART, I2C, or SPI, giving designers flexibility to mix protocol needs. The device supports 1.62 V to 3.63 V supply voltage and an industrial operating temperature range of -40 C to +85 C. Typical applications include secure IoT sensor nodes, connected medical devices, smart-home controllers, low-power wireless endpoints (LoRa/BLE/Zigbee host MCUs), and touch-based human-machine interfaces. The combination of TrustZone isolation and <25 uA/MHz active power allows secure firmware updates and authenticated sensor telemetry on a coin-cell or Li-Ion battery for years. When designing with this part, allocate sufficient Flash for a TrustZone-aware linker script (Secure / Non-Secure split), and reserve one SERCOM for a debug UART or external memory. Bypass VDD with 100 nF and 4.7 uF ceramic capacitors placed within 3 mm of the supply pins. The QFN package requires a small thermal pad for ground reference and improved electrical performance. This page synthesizes distributor pricing as of 2026-09-22, Microchip same-family alternatives with shared QFN-32 footprints, drop-in replacement guidance, and PCB/design notes that are not duplicated on the manufacturer datasheet landing page.

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ATSAML11E15A-MUKPH - Cortex-M23 32KB MCU 32VQFN TrustZone | Microchip
ATSAML11E15A-MUKPH

ATSAML11E15A-MUKPH - Cortex-M23 32KB MCU 32VQFN TrustZone | Microchip

The Microchip ATSAML11E15A-MUKPH is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with 32KB Flash, 8KB SRAM, integrated TrustZone technology, and pre-provisioned Trustonic Root of Trust key (KPH variant), housed in a 32-pin VQFN (5x5 mm) package. It targets the industry's lowest-power secure MCU class, consuming less than 25 µA/MHz in active mode and less than 100 nA in sleep mode, with chip-level tamper resistance and secure key storage. A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals. The Cortex-M23 belongs to the ARM Cortex-M family of energy-efficient processors designed for embedded applications; ARM TrustZone for ARMv8-M adds hardware-isolated secure and non-secure execution domains. The L11 series sits within Microchip's SAM family of Cortex-M based microcontrollers and competes in the broader low-power MCU market alongside parts such as the STM32L0 and EFR32 families. Key features include a 32 MHz core, 1.62 V to 3.63 V operating voltage range, integrated 12-bit ADC, 10-bit DAC, SERCOM peripherals, and a hardware cryptographic accelerator supporting AES, SHA, and True Random Number Generator. The KPH (Key-Provisioned Hardware) variant ships pre-loaded with a Trustonic Root of Trust key, enabling immediate use with Kinibi-M SDK and Secure Thingz Secure Deploy architectures. Operating temperature range is -40 °C to +85 °C for the standard grade and -40 °C to +125 °C for the extended grade. The device is built around a single-cycle I/O capable Cortex-M23 core with a 4-stage pipeline and tightly coupled SRAM, achieving 1.27 DMIPS/MHz while retaining deterministic interrupt response. TrustZone-M hardware isolates secure firmware from the rich OS or application environment, and secure boot verifies signed firmware before execution. The part is supplied in a 32-pin VQFN package with an exposed thermal pad, 5 mm × 5 mm body, and 0.5 mm pitch for compact, reflow-solderable designs. Typical applications include IoT end nodes with secure cloud onboarding, smart locks and access control, sensor hubs requiring tamper detection, secure payment terminals, and asset-tracking devices that need authenticated firmware updates. The combination of sub-100 nA sleep current and TrustZone-M makes it well suited to battery-powered products that demand a hardware root of trust. When designing with this part, note that the KPH variant uses a different provisioning flow than the standard MU variant; firmware must call the Kinibi-M SDK to access the pre-provisioned key. The exposed pad must be soldered to a sufficient copper pour for thermal dissipation and electrical grounding; insufficient thermal pad solder can raise junction temperature by tens of degrees at full CPU load. This page synthesizes distributor pricing, drop-in same-package alternatives from the Microchip SAM L11 family, and practical design notes drawn from the manufacturer datasheet and reference designs.

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ATSAML11E15A-MUT - SAM L11 Cortex-M23 32KB TrustZone MCU
ATSAML11E15A-MUT

ATSAML11E15A-MUT - SAM L11 Cortex-M23 32KB TrustZone MCU

The Microchip Technology ATSAML11E15A-MUT is a 32-bit ARM Cortex-M23 microcontroller in the SAM L11 family, featuring integrated ARM TrustZone technology, 32KB of Flash, 8KB of SRAM, and a 32-pin VQFN (5x5 mm) package with an exposed thermal pad. It runs at up to 32 MHz, delivers <25 µA/MHz active current, and drops below 100 nA in sleep mode, making it Microchip's lowest-power Cortex-M23 device. The 'MUT' suffix denotes a Tape & Reel packaging variant qualified for industrial temperature range (-40 °C to +85 °C). A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals such as ADCs, timers, communication interfaces, and GPIO into one package. The Cortex-M23 sits at the entry level of the Arm Cortex-M family and adds TrustZone isolation, allowing secure and non-secure code to run on the same core with hardware-enforced separation. MCUs belong to the broader category of embedded processors, sitting below microprocessors (MPUs) in compute complexity but above simple 8-bit controllers in capability. The ATSAML11E15A-MUT differentiates itself with chip-level security features that are rare in this price range. It integrates secure key storage, hardware cryptographic accelerators, true random number generator (TRNG), secure boot, and chip-level tamper detection. Combined with TrustZone, this enables firmware IP protection, secure over-the-air (OTA) updates, and resistance to physical tampering attacks - features typically reserved for more expensive secure elements. From an architecture standpoint, the SAM L11 uses a single-cycle I/O bus for deterministic GPIO response and supports Microchip's Event System for inter-peripheral signalling without CPU intervention. Its peripheral set includes a 12-bit ADC, 10-bit DAC, multiple SERCOM (configurable serial communication) instances usable as UART/SPI/I2C, and a Real-Time Clock (RTC). The 32-VQFN package provides an exposed thermal pad (EP) that must be soldered to the PCB ground plane to meet thermal and electrical specifications. Typical applications include IoT sensor nodes, secure wearables, smart meters, medical consumables, anti-counterfeiting authentication tokens, and battery-powered industrial edge devices. Designers pick this part specifically when on-chip secure key storage and TrustZone isolation outweigh the need for larger memory. When designing the PCB, the exposed pad must be soldered to a grounded copper pour of at least 4 thermal vias to meet the rated thermal performance. The internal 32 kHz ultra-low-power oscillator can be used as the low-frequency clock source to further reduce sleep-mode current, but its startup time is several hundred milliseconds - factor this into latency-critical wake-up paths. This page synthesises distributor pricing, cross-reference data, and design considerations not found in a single manufacturer datasheet, enabling faster component selection and PCB bring-up.

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ATSAML11E15A-UUTKPH - 32KB Flash ARM Cortex-M23 MCU | Microchip
ATSAML11E15A-UUTKPH

ATSAML11E15A-UUTKPH - 32KB Flash ARM Cortex-M23 MCU | Microchip

The Microchip Technology ATSAML11E15A-UUTKPH is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with 32KB Flash and 8KB SRAM, operating up to 32 MHz, housed in a 32-pin WLCSP package. According to the Microchip product page, the SAM L11 family is the industry's first Cortex-M23 MCU featuring ARM TrustZone-M technology, consuming less than 25 µA/MHz in active mode and less than 100 nA in sleep mode. A microcontroller (MCU) is an integrated circuit that combines a processor core, memory, and programmable peripherals on a single chip. The SAM L11 belongs to the sub-category of ultra-low-power MCUs within the broader class of 32-bit ARM Cortex-M microcontrollers, which are widely used in battery-powered and energy-harvesting embedded applications where active current, sleep current, and security boundaries directly impact product lifetime and certification. Key features include secure key storage, chip-level tamper resistance, hardware cryptographic accelerators, a built-in PTC (Peripheral Touch Controller), multiple SERCOM serial interfaces, ADC, DAC, OPAMP, and AC peripherals. TrustZone-M enables isolation between secure and non-secure code regions, allowing IP protection, secure boot, and credential provisioning - differentiating the SAM L11 from general-purpose Cortex-M23 parts. The architecture integrates a Cortex-M23 core (Armv8-M Baseline) with single-cycle I/O access, an 8-channel event system, and a low-power 12-bit ADC. The security subsystem includes secure boot, secure debug, true random number generator (TRNG), AES-256, SHA-256, and ECC hardware accelerators, alongside Microchip's TrustZone-aware SecureBoot architecture. The 'KPH' suffix indicates key-provisioned factory provisioning with a customer-supplied root key for production-grade secure deployments. Typical applications include IoT end nodes, secure sensor hubs, smart utility metering, secure wearables, medical sensor patches, and tamper-resistant payment terminals. The TrustZone-M separation and factory-provisioned keys are particularly valuable for any device that handles credentials, performs attestation, or stores device identities in the field. When designing with the SAM L11, ensure that TrustZone regions are planned during code partitioning; mixing secure and non-secure peripherals requires careful linker and NVIC configuration. For battery life estimation, the dominant figure is the 100 nA retention sleep current rather than the active 25 µA/MHz figure. This page synthesizes distributor pricing, drop-in alternatives from the SAML11 family and Microchip's broader ultra-low-power portfolio, and practical TrustZone-M design notes not consolidated in the manufacturer datasheet.

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ATSAML11E16A-AFT - 32MHz Cortex-M23 MCU, TrustZone, 64KB Flash | Microchip
ATSAML11E16A-AFT

ATSAML11E16A-AFT - 32MHz Cortex-M23 MCU, TrustZone, 64KB Flash | Microchip

The Microchip ATSAML11E16A-AFT is an ultra-low-power ARM Cortex-M23 microcontroller featuring ARM TrustZone-M security extensions, 64 KB of Flash, and 16 KB of SRAM in a 32-pin TQFP (7x7 mm) package. According to the Microchip product page, it operates at up to 32 MHz, consumes less than 25 uA/MHz in active mode, and drops below 100 nA in sleep mode, making it one of the lowest-power Cortex-M23 devices available. It is AEC-Q100 qualified for automotive applications. An ARM Cortex-M23 MCU is a 32-bit microcontroller core built on the ARMv8-M Baseline architecture. The M23 instruction set includes only Thumb-2 and a small subset of integer DSP extensions, which keeps the core area small (about 12K gates) and its active power per MHz very low. When paired with TrustZone-M, the device splits memory and peripherals into Secure and Non-Secure worlds so firmware can isolate sensitive keys, crypto operations, and OTA update paths from the main application code, a capability previously reserved for Cortex-M33 or higher tiers. Key features of the ATSAML11E16A-AFT include 64 KB Flash with secure key storage, 16 KB SRAM, 12-bit ADC, 10-bit DAC, two analog comparators, one op-amp, multiple SERCOM serial interfaces (configurable as UART, SPI, I2C), a PTC (Peripheral Touch Controller), and a Crypto accelerator supporting AES, SHA, and TRNG. The device also includes chip-level tamper resistance and secure boot. The 32-pin TQFP package (7x7 mm) balances low-cost PCB assembly with sufficient I/O for sensor hubs and human-machine interface nodes. The SAM L11 architecture combines an ultra-low-power picoPower cache, multiple sleep modes, and event system wake-up without CPU intervention. This makes it suitable for battery-powered applications where the MCU spends most of its time in deep sleep but must wake quickly to service a sensor interrupt. Typical applications include IoT end nodes with secure OTA firmware updates, smart-metering modules, secure authentication peripherals, automotive body electronics (AEC-Q100), medical wearables, and secure payment terminals. The TrustZone-M isolation plus hardware crypto engine enables compliance with PSA Certified Level 1 and emerging IoT security regulations. When designing with this device, allocate the secure boot region and TrustZone Attribution Unit carefully: misconfigured SAU regions can lock out the debugger. Use the Microchip MPLAB X IDE or MPLAB Harmony 3 framework and program/debug via SWD with a J-Link, MPLAB ICD 4, or Curiosity Nano board. This page combines distributor pricing snapshots, drop-in pin-compatible alternatives, and practical TrustZone-M design notes that are not duplicated on the manufacturer product page, providing genuine engineering value beyond the datasheet PDF.

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ATSAML11E16A-AFTKPH - Cortex-M23 32MHz 64KB MCU | Microchip
ATSAML11E16A-AFTKPH

ATSAML11E16A-AFTKPH - Cortex-M23 32MHz 64KB MCU | Microchip

The Microchip ATSAML11E16A-AFTKPH is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller featuring ARM TrustZone technology, secure key storage, and chip-level tamper resistance. It operates at up to 32 MHz, integrates 64 KB of Flash and 16 KB of SRAM, and is housed in a 32-pin TQFP package (7x7 mm). The device targets secure connected and battery-powered applications that require hardware-isolated execution. A microcontroller (MCU) is a programmable system-on-chip that integrates a CPU core, memory, and programmable peripherals around a single die. The ARM Cortex-M23 is an ARMv8-M Baseline architecture core designed for deterministic, energy-efficient embedded processing, while TrustZone for ARMv8-M adds hardware isolation between secure and non-secure code regions. Within Microchip's portfolio, this part sits in the SAM L11 family - a Cortex-M23-based line positioned between the smaller SAM L10 (Cortex-M23, no TrustZone) and the higher-end SAM L22 (Cortex-M23 with rich peripherals). It belongs to the broader power management and microcontroller hierarchy: MCU -> embedded controller -> system-on-chip (SoC) -> semiconductor. Key features include less than 25 uA/MHz active current and less than 100 nA in sleep mode, an Enhanced Peripheral Touch Controller (PTC) for capacitive touch sensing, a hardware Crypto accelerator suite (AES, SHA, ECC, TRNG), and an integrated Secure Boot with immutable root-of-trust. The 12-bit ADC, 10-bit DAC, and 16-bit PWM/timer subsystems make it suitable for mixed-signal sensing. ESD ratings are 4 kV HBM and 1 kV CDM per industry-standard test methods. The IC uses a single 1.62-3.63 V supply and offers multiple low-power modes (Idle, Standby, Hibernate, Backup, and Off). CoreMark / Dhrystone performance scales linearly with clock. Compared with legacy 8-bit PIC MCUs, the ATSAML11E16A delivers roughly 40-80x more compute per MHz while maintaining comparable sleep current. Typical applications include smart-home and IoT sensor nodes, secure wireless controllers (BLE/Zigbee host MCUs), battery-powered wearables, and secure industrial/medical sensor endpoints. With TrustZone and crypto acceleration, the part is well suited to products that must meet evolving cyber-security regulations. When designing with this MCU, provide a 1.62-3.63 V regulated rail; for sleep currents under 1 uA, switch the core to Hibernate via the SleepWalking peripheral gating. Decouple VDD with a 100 nF + 1 uF pair close to the package. For touch or ADC applications, allocate the second 1 uF to AVDD, and keep the analog traces away from switching nodes. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet - helping you evaluate the SAM L11 family for secure, low-power embedded designs.

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ATSAML11E16A-AU - 32MHz Cortex-M23 64KB MCU | Microchip
ATSAML11E16A-AU

ATSAML11E16A-AU - 32MHz Cortex-M23 64KB MCU | Microchip

The Microchip ATSAML11E16A-AU is an ultra-low-power 32-bit ARM Cortex-M23 microcontroller with TrustZone-M security, 64KB Flash, 16KB SRAM, and integrated crypto accelerators, packaged in a 32-pin TQFP (7x7 mm) and rated for -40C to +85C operation. It runs at up to 32 MHz with 2.62 CoreMark/MHz efficiency and achieves less than 25 uA/MHz active consumption while consuming less than 100 nA in sleep mode, making it the lowest-power Cortex-M23 in the industry. The on-chip crypto block, secure key storage, and chip-level tamper resistance make this MCU the entry point for IoT endpoints that must defend firmware and identity against physical and remote attacks. An ARM Cortex-M23 microcontroller is a 32-bit processor core built on the ARMv8-M baseline architecture, optimized for energy-efficient embedded applications. It sits below the Cortex-M3 in performance but adds optional TrustZone-M for hardware-isolated secure firmware regions. The SAM L11 family from Microchip is the first commercial Cortex-M23 implementation to integrate TrustZone-M, secure boot, and a hardware AES/SHA crypto accelerator on die. Within the broader taxonomy, the part belongs to microcontrollers -> 32-bit MCUs -> ARM Cortex-M -> Cortex-M23 -> low-power secure MCUs -> power management hierarchy. Key differentiating specifications include the TrustZone-M isolation engine, on-die crypto accelerators (AES, SHA, TRNG), 64 KB Flash with secure storage partitioning, 16 KB SRAM, six SERCOM interfaces configurable as UART/SPI/I2C, a 12-bit ADC, 10-bit DAC, analog comparator, and PTC (Peripheral Touch Controller) for capacitive touch sensing. The part also includes a Self-Programmable Flash with read-while-write support and a 32 kHz RTC with calendar mode. Technically, the SAM L11 uses a single-cycle hardware multiplier and hardware divider for deterministic interrupt latency. The Cortex-M23 core delivers up to 31 DMIPS at 32 MHz. Sleep current below 100 nA is achieved via three power domains (PD0/PD1/PD2) and a backup domain with RTC. The 1.62V to 3.63V operating range supports direct Li-ion and 3.3V regulated rails. Typical applications include IoT sensor nodes, secure wearables, smart metering, medical sensor patches, building automation endpoints, and battery-powered HMI with capacitive touch. The 85C ceiling suits indoor industrial enclosures, consumer appliances, and commercial IoT gateways. When designing with the ATSAML11E16A-AU, ensure the secure key storage region is provisioned during initial flash programming and that the NRST line has the required 10 kohm pull-up. TrustZone-M secure/non-secure partitioning must be configured before user code execution; tools like MPLAB Harmony v3 and Atmel Studio 7 simplify this. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet summary, including same-package pin-to-pin MCU replacements drawn from the Microchip SAM L11 family.

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ATSAML11E16A-AUTKPH - 32MHz Cortex-M23 MCU, TrustZone | Microchip
ATSAML11E16A-AUTKPH

ATSAML11E16A-AUTKPH - 32MHz Cortex-M23 MCU, TrustZone | Microchip

The Microchip Technology ATSAML11E16A-AUTKPH is a 32-bit ARM Cortex-M23 microcontroller with TrustZone-M security and integrated crypto hardware, packaged in a 32-pin TQFP (7x7 mm) with key provisioning pre-loaded. It delivers 64KB Flash and 16KB SRAM at a 32 MHz core clock and is part of the SAM L11 family — billed by Microchip as the industry's first and lowest-power Cortex-M23 MCU with chip-level security. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (SRAM), and a range of peripheral interfaces (ADC, timers, communication ports, I/O) into one package. Within the broader semiconductor hierarchy, an MCU sits under microcontrollers -> embedded processors -> semiconductors -> integrated circuits. Cortex-M23 cores specifically target energy-efficient microcontroller applications and add TrustZone-M isolation that lets a designer separate secure firmware regions from application code at the hardware level. Key features of the ATSAML11E16A-AUTKPH include active-mode consumption under 25 uA/MHz, sleep-mode current under 100 nA, ARM TrustZone-M hardware isolation, on-chip cryptographic accelerators (AES, SHA, secure key storage), chip-level tamper resistance, and an enhanced Peripheral Touch Controller (PTC). The part integrates a 12-bit ADC, 10-bit DAC, two operational amplifiers, two analog comparators, and multiple SERCOM (serial communication) modules that can each be configured as UART, SPI, or I2C. Architecturally, the device pairs the Cortex-M23 core with Microchip's proprietary security IP and a low-power architecture that supports multiple sleep modes, making it well-suited for battery-powered secure endpoints. The 32 MHz core, 64KB Flash and 16KB SRAM envelope fits comfortably in applications that previously needed a Cortex-M0+ or M3 but now require on-chip secure boot and key storage. Typical applications include IoT end nodes, secure sensor hubs, smart meters, medical wearables, and touch-based human-machine interfaces that demand hardware-rooted security. The bundled TrustZone-M and crypto acceleration also suit payment terminals and authenticated accessories. Compared with switching regulators, the MCU's internal core regulator keeps sleep current extremely low without external DC-DC overhead. Designers should budget Flash for both secure and non-secure partitions and use Microchip's MCC/MPLAB Harmony configurator to map peripherals. The 32-TQFP package is hand-solderable and breadboard-friendly, easing prototype bring-up. The KPH suffix on this variant indicates factory key provisioning for secure-element use cases. This page synthesizes distributor pricing for the ATSAML11E16A-AUTKPH, same-package drop-in alternatives within the SAM L11 family, and practical design notes covering TrustZone partitioning and low-power sleep modes not found in the manufacturer datasheet alone.

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