ATSAML11E16A-MFKPH - 32MHz ARM Cortex-M23 MCU | Microchip
N.º da peça: ATSAML11E16A-MFKPH ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.95 | $3,95 |
| 10 | $3.55 | $35,50 |
| 100 | $3.12 | $312,00 |
| 500 | $2.78 | $1.390,00 |
| 1.000 | $2.45 | $2.450,00 |
ATSAML11E16A-MFKPH Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and peripherals. The SAM L11 is a 32-bit ARM Cortex-M23 MCU, an Armv8-M baseline core optimized for energy efficiency and deterministic interrupt response, sitting in the hierarchy MCU -> microcontroller -> embedded processor -> semiconductor IC. The ATSAML11E16A-MFKPH variant specifically integrates TrustZone for ARMv8-M, secure boot, secure key storage, and chip-level tamper resistance, providing hardware-isolated secure and non-secure code regions.
Key features include 64 KB Flash, 16 KB SRAM, ARM Cortex-M23 core with single-cycle hardware multiply, a 32 MHz maximum CPU clock, and integrated peripherals such as SERCOM (configurable serial communication), ADC, DAC, timers, and RTC. Security features include TrustZone-M, secure boot with root-of-trust, hardware cryptographic accelerators (AES, SHA, TRNG), secure key storage in flash, and tamper detection pins. The part is specified for an industrial temperature range of -40C to +125C.
Architecturally, the SAM L11 combines the Cortex-M23 core with a Microchip peripheral set and an enhanced Power Management Unit (PMU) supporting multiple low-power sleep modes. The 32-VQFN (5x5 mm) package has an exposed pad that must be soldered to the ground plane for thermal dissipation and electrical performance. TrustZone isolation runs at the bus and memory level, ensuring that secure peripherals cannot be accessed from non-secure firmware without explicit gateway calls.
Typical applications include IoT sensor nodes, secure connected home devices, smart metering, medical wearables requiring authenticated firmware, secure access control, and industrial HMI edge nodes. The wide operating temperature range and the 32-VQFN footprint also suit compact industrial modules with cryptographic requirements.
Design considerations include mandatory decoupling near VDD pins, exposing the e-pad to a continuous ground copper pour for thermal relief, and configuring TrustZone attribution in the linker script before provisioning the secure key store. The -MFKPH suffix indicates the part is factory-key-provisioned and supplied in tray packaging.
This page synthesizes distributor pricing, factory-provisioned key variants, drop-in package alternatives, and practical TrustZone design notes not found in the manufacturer datasheet alone.
Alternativas drop-in para ATSAML11E16A-MFKPH — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATSAML11E16A-MFKPH (mesmo formato e footprint) — diferindo em Operating Temperature, Package, Active Current, Core Architecture, Core.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAML11E16A-MF
✅ Drop-In✓ Em estoque
$2.05 / unidade
Ver ficha técnica →ATSAML11E16A-AFT
✅ Drop-In✓ Em estoque
$2.85 / unidade
Ver ficha técnica →ATSAML11E16A-AUTKPH
✅ Drop-In✓ Em estoque
$3.1 / unidade
Ver ficha técnica →ATSAML11E15A-UUTKPH
✅ Drop-In✓ Em estoque
$2.01 / unidade
Ver ficha técnica →ATSAML11E15A-MFT
✅ Drop-In✓ Em estoque
$1.89 / unidade
Ver ficha técnica →ATSAML11E16A-MFKPH Classificações máximas e características elétricas
| Core | ARM Cortex-M23 (Armv8-M Baseline) with TrustZone |
| Maximum CPU Clock | 32 MHz |
| Flash Program Memory | 64 KB (64K x 8) |
| SRAM | 16 KB |
| Operating Voltage (VDD) | 1.62 V to 3.63 V |
| Active Current | <25 uA/MHz |
| Sleep Current | <100 nA |
| Encapsulamento | 32-VQFN (5x5 mm) with exposed pad |
| Temperatura de operação | -40C to +125C (industrial) |
| Communication Peripherals | SERCOM (configurable UART/SPI/I2C) |
| Security Features | TrustZone-M, secure boot, AES/SHA/TRNG, secure key storage, tamper detection |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
| Provisioning | Factory key provisioned (-KPH suffix), Tray packaging (-PH suffix) |
Configuração de pinos do ATSAML11E16A-MFKPH
| Pino 1 | VDDIO — Digital I/O supply voltage |
| Pino 2 | PA00 — GPIO / SERCOM pad |
| Pino 3 | PA01 — GPIO / SERCOM pad |
| Pino 4 | PA02 — GPIO / ADC input |
| Pino 5 | PA03 — GPIO / ADC input / reference |
| Pino 6 | GND — Ground |
| Pino 7 | PA04 — GPIO / SERCOM pad |
| Pino 8 | PA05 — GPIO / SERCOM pad |
| Pino 9 | PA06 — GPIO / SERCOM pad |
| Pino 10 | PA07 — GPIO / SERCOM pad |
| Pino 11 | PA08 — GPIO / SERCOM pad |
| Pino 12 | PA09 — GPIO / SERCOM pad |
| Pino 13 | PA10 — GPIO / SERCOM pad |
| Pino 14 | PA11 — GPIO / SERCOM pad |
| Pino 15 | VDD — Core supply voltage |
| Pino 16 | GND — Ground |
| Pino 17 | PA14 — GPIO / XOUT (crystal) |
| Pino 18 | PA15 — GPIO / XIN (crystal) |
| Pino 19 | PA16 — GPIO / SERCOM pad |
| Pino 20 | PA17 — GPIO / SERCOM pad |
| Pino 21 | PA18 — GPIO / SERCOM pad |
| Pino 22 | PA19 — GPIO / SERCOM pad |
| Pino 23 | PA20 — GPIO / SERCOM pad |
| Pino 24 | PA21 — GPIO / SERCOM pad |
| Pino 25 | PA22 — GPIO / SERCOM pad |
| Pino 26 | PA23 — GPIO / SERCOM pad |
| Pino 27 | PA24 — GPIO / SERCOM pad |
| Pino 28 | PA25 — GPIO / SERCOM pad |
| Pino 29 | PA27 — GPIO / boot loader entry |
| Pino 30 | RESET — Reset input (active low) |
| Pino 31 | VDD — Core supply voltage |
| Pino 32 | GND — Ground |
Aplicações típicas
ATSAML11E16A-MFKPH é adequado para 6 aplicaçãos: Secure IoT Sensor Node, Smart Metering and Utility Endpoints, Secure Access Control and Authentication, Medical Wearable Firmware Authenticator, Industrial HMI Edge Node, Connected Home Hub Sensor Endpoint.
Secure IoT Sensor Node
The ATSAML11E16A-MFKPH's <100 nA sleep current and ARM TrustZone-M hardware isolation make it ideal for battery-powered IoT sensor nodes that must wake periodically, authenticate the cloud connection, and return to deep sleep. The 64 KB Flash accommodates a secure bootloader, the TrustZone-M SAU configuration table, and the application image within a single image partition, while the Cortex-M23 core executes the sensing routine at 32 MHz before re-entering sleep. The factory-provisioned key store (KPH suffix) eliminates the need for customer-side key injection and reduces the attack surface during provisioning. Designers place the part on a 5x5 mm PCB footprint with the e-pad soldered to a ground pour.
Recomendado
Smart Metering and Utility Endpoints
The ATSAML11E16A-MFKPH's industrial temperature rating (-40C to +125C), cryptographic accelerators (AES/SHA/TRNG), and tamper-detection pins suit smart electricity, water, and gas metering endpoints that must run for 10+ years on a primary cell. The Cortex-M23 core reads the metering sensor via ADC, signs the consumption data with the hardware AES engine using a provisioned key, and transmits via a SERCOM-configured UART or SPI radio link. TrustZone isolation prevents the metrology firmware from being tampered with through the communication stack, satisfying regulatory requirements for billing integrity in many jurisdictions.
Recomendado
Secure Access Control and Authentication
Physical access readers and authentication tokens demand hardware-rooted secret storage, and the ATSAML11E16A-MFKPH's secure key storage with factory provisioning delivers exactly that. The Cortex-M23 core runs the secure authentication handshake (e.g., a custom challenge-response), validates a biometric or PIN input via GPIO, and unlocks a relay driver. Hardware AES and SHA accelerators offload crypto operations so the 32 MHz core has headroom for the user interface, while the secure boot ROM verifies the application image signature before execution. The 32-VQFN package fits inside compact reader enclosures with strict mechanical constraints.
Recomendado
Medical Wearable Firmware Authenticator
Medical wearables (e.g., continuous glucose monitors, smart inhalers) require FDA-aligned firmware authentication and patient data confidentiality. The ATSAML11E16A-MFKPH's TrustZone-M creates a hardware-isolated secure enclave where the firmware signature is verified and the AES engine encrypts patient telemetry before it leaves the device. With sleep current under 100 nA, the wearable can run for weeks on a coin cell while the Cortex-M23 core wakes only for sensor sampling. The 64 KB Flash holds the secure bootloader, the SAU table, and the small wearable application.
Recomendado
Industrial HMI Edge Node
Compact industrial HMI panels and edge sensor gateways benefit from the ATSAML11E16A-MFKPH's combination of cryptographic security, low power, and small footprint. The Cortex-M23 core processes local sensor data, the SERCOM peripherals interface to UART/SPI/I2C fieldbus sensors, and the secure key storage protects firmware updates signed by the OEM. The industrial -40C to +125C temperature range supports factory-floor deployment without additional thermal management, while the 32-VQFN (5x5 mm) package allows the edge node PCB to fit in tight enclosure spaces.
Recomendado
Connected Home Hub Sensor Endpoint
Connected-home devices such as door/window sensors, leak detectors, and smart thermostats require long battery life, secure commissioning, and Matter/Zigbee/Thread-friendly processing. The ATSAML11E16A-MFKPH's TrustZone-M and hardware TRNG support secure commissioning via the standard commissioning flow, while the <100 nA sleep current enables multi-year coin-cell operation. The Cortex-M23 core runs the radio stack (via a connected SERCOM-linked transceiver) and TrustZone ensures the device certificate cannot be extracted. The 32-VQFN footprint keeps the PCB small enough for in-wall sensor enclosures.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAML11E16A-MFKPH — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAML11E16A-MF | ATSAML11E16A-AFT | ATSAML11E16A-AUTKPH | ATSAML11E15A-UUTKPH | ATSAML11E15A-MFT |
|---|---|---|---|---|---|---|
| Package | 32-VQFN (5x5) | 32-VQFN (5x5) - same | 32-VQFN (5x5) - same | 32-VQFN (5x5) - same | 32-VQFN (5x5) - same | 32-VQFN (5x5) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB | 32 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB | 8 KB |
| Core | ARM Cortex-M23 + TrustZone | ARM Cortex-M23 + TrustZone | ARM Cortex-M23 + TrustZone | ARM Cortex-M23 + TrustZone | ARM Cortex-M23 + TrustZone | ARM Cortex-M23 + TrustZone |
| Factory Key Provisioned | Yes (-KPH) | No | No | Yes (AUT, automotive) | Yes | No |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C (automotive grade) | -40C to +125C | -40C to +125C |
| Packaging | Tray (-PH) | Tray | Tape & Reel | Tray | Tray | Tape & Reel |
Principais diferenciais
- Factory-provisioned secure key storage eliminates customer-side key injection (vs ATSAML11E16A-MF)
- 64 KB Flash accommodates secure bootloader plus full application image (vs ATSAML11E15A-MFT)
- Industry's first ARM Cortex-M23 with TrustZone for Armv8-M (vs ATSAML10E16A-MF)
Notas de projeto
The 32-VQFN package relies on the exposed pad (e-pad) for both electrical grounding and thermal dissipation. The PCB footprint must expose a continuous ground copper pour directly under the e-pad with thermal vias to internal ground planes. Without the e-pad soldered, junction temperature rises can exceed ratings during sustained 32 MHz operation, especially at the upper end of the -40C to +125C industrial range.
Place 100 nF and 1 uF decoupling capacitors within 2 mm of each VDD and VDDIO pin. For the lowest sleep current (<100 nA), disconnect unused SERCOM peripherals via the PMUX and disable unused clocks in the GCLK configuration. The brown-out detector (BOD) should be enabled at the lowest threshold to maximize deep-sleep current savings while preventing Flash corruption on weak batteries.
Keep the XIN/XOUT crystal traces short (<5 mm) and surround them with a ground guard ring to minimize EMI. Route the SWD interface (SWDIO, SWCLK) away from high-frequency SERCOM signals. Place the RESET pull-up (typically 10 kOhm) close to the RESET pin with a 100 nF decoupling capacitor. The factory-provisioned key store (-KPH) requires that firmware image signatures are validated against the BUILTIN_ROOTKEY before any secure operation is permitted.
Do not skip configuring the SAM L11 SAU (Security Attribution Unit) before enabling TrustZone - an unconfigured SAU will lock out secure peripherals. The -MFKPH variant is factory-key-provisioned and the secure key cannot be re-injected without an explicit secure erase sequence. Always validate the firmware image signature against the BUILTIN_ROOTKEY before any secure peripheral access, per the Microchip TrustZone-M application notes.
Informações de conformidade
RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40C to +125C. The -AUTKPH variant is AEC-Q100 qualified for automotive applications; the standard -MFKPH is not. Factory-provisioned keys comply with NIST SP 800-193 platform resiliency guidelines.
