ATSAML11D14A-MUT - 32MHz Cortex-M23 TrustZone MCU 16KB Flash | Microchip
MPN: ATSAML11D14A-MUT ✓ Hoạt độngATSAML11D14A-MUT Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ATSAML11D14A-MUT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAML11D14A-MUT (cùng hình factor và footprint) — khác nhau ở Package, Core, ADC, Operating Temperature, Core Architecture.
ATSAML11D15A-MUT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAML11E16A-MUT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAML11D14A-MU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAML11D14A-YFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAML10D16A-MFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD11D14A-MUT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAML11D14A-MUT Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M23 (ARMv8-M Baseline with TrustZone) |
| Maximum Clock Speed | 32 MHz |
| Core Performance | 2.62 CoreMark/MHz, up to 31 DMIPS |
| Program Flash | 16 KB (16K x 8) |
| SRAM | 8 KB |
| Data Flash | 2 KB |
| Operating Voltage Range | 1.62 V to 3.63 V |
| Active Current | < 25 µA/MHz |
| Sleep Current | < 100 nA |
| Hardware Multiplier | Single-cycle 32-bit |
| Hardware Divider | Yes |
| NVIC | Yes |
| Memory Protection Unit (MPU) | Yes |
| TrustZone for ARMv8-M | Yes |
| Nhiệt độ hoạt động | -40 °C to +85 °C |
| Hộp | 24-VQFN (4x4 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Bit Width | 32-bit |
Cấu hình chân ATSAML11D14A-MUT
| Chân 1 | PA00 — GPIO / XIN (external clock input) |
| Chân 2 | PA01 — GPIO / XOUT (external clock output) |
| Chân 3 | GND — Ground |
| Chân 4 | VDDIO — Digital I/O supply voltage |
| Chân 5 | VDDANA — Analog supply voltage |
| Chân 6 | GND — Ground |
| Chân 7 | PA02 — GPIO / ADC input |
| Chân 8 | PA03 — GPIO / ADC reference |
| Chân 9 | PA04 — GPIO / SERCOM |
| Chân 10 | PA05 — GPIO / SERCOM |
| Chân 11 | PA06 — GPIO / SERCOM |
| Chân 12 | PA07 — GPIO / SERCOM |
| Chân 13 | PA08 — GPIO / SERCOM / I2C |
| Chân 14 | PA09 — GPIO / SERCOM / I2C |
| Chân 15 | PA10 — GPIO / SERCOM / TCC |
| Chân 16 | PA11 — GPIO / SERCOM / TCC |
| Chân 17 | PA14 — GPIO / SWD clock (programming/debug) |
| Chân 18 | PA15 — GPIO / SWD data (programming/debug) |
| Chân 19 | RESET — Active-low reset input |
| Chân 20 | PA27 — GPIO / external interrupt |
| Chân 21 | PA28 — GPIO / external interrupt |
| Chân 22 | PA30 — GPIO / SERCOM |
| Chân 23 | PA31 — GPIO / SERCOM |
| Chân 24 | GND_EPAD — Exposed pad / thermal pad (must be soldered to GND) |
Ứng dụng tiêu biểu
ATSAML11D14A-MUT phù hợp cho 6 Áp dụngs: Secure IoT Sensor Nodes, Smart Electricity Meters, Battery-Powered Medical Wearables, Home Automation Controllers, Industrial HMI Keypad Panels, Secure Access Control Readers.
Secure IoT Sensor Nodes
The ATSAML11D14A-MUT's TrustZone for ARMv8-M, secure boot, and PSA Level 1 certifiable security make it a natural host MCU for IoT sensor nodes that authenticate to cloud services. The <25 µA/MHz active and <100 nA sleep currents allow coin-cell-powered nodes to run for years; the Cortex-M23 at 32 MHz runs TLS handshakes and RSA/ECC verification through the integrated cryptographic accelerator. Paired with an external ATECC608B secure element, the design achieves hardware root-of-trust and tamper-resistant key storage suitable for AWS IoT, Azure Sphere, and Matter commissioning flows.
Được đề xuất
Smart Electricity Meters
The ATSAML11D14A-MUT is well-suited for residential and commercial smart meters because its Cortex-M23 + TrustZone isolates the metering firmware from the communication stack, preventing remote tampering with billing data. The 12-bit 1 Msps ADC handles simultaneous voltage and current sampling for class-0.5 metering accuracy, and the low-power Always-On domain keeps RTC and tamper detection alive below 100 nA during sleep. The 1.62–3.63V supply accepts direct Li-ion or 3.6V Li-SOCl2 battery operation; pair with ADE9153A for shunt-based current sensing.
Được đề xuất
Battery-Powered Medical Wearables
For continuous-monitoring medical wearables (glucose patches, pulse oximeters, wearable ECG), the ATSAML11D14A-MUT's 100 nA sleep current is critical to achieving 7–14 day battery life on small Li-Po cells. The Cortex-M23 at 32 MHz computes FFT-based heart-rate-variability and SpO2 algorithms with sufficient headroom for future firmware updates; TrustZone isolates patient health data (PHI) from the BLE stack to satisfy HIPAA-style data handling expectations. The integrated 12-bit ADC reads pulse-ox sensor photodiode outputs directly, eliminating an external ADC.
Được đề xuất
Home Automation Controllers
The ATSAML11D14A-MUT runs Matter, Zigbee, or Z-Wave host stacks for smart-home hubs and Matter Thread Border Routers with TrustZone isolating commissioning credentials. Its Cortex-M23 at 32 MHz handles network commissioning flows, OTA firmware verification, and rule-based scene logic while keeping the radio interface responsive. The 24-VQFN (4x4 mm) footprint fits into compact wall-switch and outlet form factors; the 2KB Data Flash stores commissioning tokens and device pairing data with hardware write protection.
Được đề xuất
Industrial HMI Keypad Panels
The ATSAML11D14A-MUT drives small industrial HMI keypad and rotary-encoder panels, where TrustZone isolates the configuration UI from the safety-critical control code. The Cortex-M23 + DMA handles capacitive touch scanning through the PTC peripheral, while the SERCOM ports drive OLED displays or character LCDs via SPI. The -40 °C to +85 °C industrial operating range suits factory-floor enclosures, and the 24-VQFN's small footprint enables behind-display placement on compact panels.
Được đề xuất
Secure Access Control Readers
The ATSAML11D14A-MUT powers RFID/NFC door readers where TrustZone protects the cryptographic master keys and prevents firmware extraction from a stolen reader. Its Cortex-M23 + crypto accelerator verifies MIFARE DESFire, EV1, and EV2 credentials in <80 ms — fast enough for tap-and-go door access. The 100 nA sleep current supports battery-backed readers that survive AC mains outages; pair with PN512 NFC frontend for ISO 14443 A/B communication up to 10 cm read range.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAML11D14A-MUT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ATSAML11D15A-MUT | ATSAML11E16A-MUT | ATSAML11D14A-MU | ATSAML11D14A-YFT | ATSAML10D16A-MFT |
|---|---|---|---|---|---|---|
| Package | 24-VQFN (4x4 mm) | 24-VQFN (4x4 mm) - same | 24-VQFN (4x4 mm) - same | 24-VQFN (4x4 mm) - same | 24-VQFN (4x4 mm) - same | 24-VQFN (4x4 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 16 KB | 32 KB | 64 KB | 16 KB | 16 KB | 16 KB |
| SRAM | 8 KB | 8 KB | 16 KB | 8 KB | 8 KB | 8 KB |
| TrustZone | Yes (ARMv8-M) | Yes (ARMv8-M) | Yes (ARMv8-M) | Yes (ARMv8-M) | Yes (ARMv8-M) | No (Cortex-M23 without TrustZone) |
| Core | Cortex-M23 | Cortex-M23 | Cortex-M23 | Cortex-M23 | Cortex-M23 | Cortex-M23 |
| Maximum Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +105 °C (extended) | -40 °C to +85 °C |
Bảo phân biệt quan trọng
- Industry's first Cortex-M23 MCU with TrustZone for ARMv8-M (vsATSAML10D16A-MFT)
- Pin-compatible with 32KB and 64KB Flash siblings (vsATSAML11D15A-MUT)
- 100 nA sleep vs 1 µA+ typical Cortex-M0+ competitors (vsATSAMD11D14A-MUT)
Ghi chú thiết kế
Estimated: at VDD=3.3V, clock=32 MHz, all peripherals on, the ATSAML11D14A-MUT draws approximately 0.8 mA active (<25 µA/MHz * 32 MHz). In Standby sleep with RTC running, current drops below 100 nA, enabling multi-year coin-cell operation. Use the SUPC controller to switch to the 32.768 kHz crystal oscillator for RTC and wake sources during sleep to avoid waking the DFLL main clock. Place a 1 µF X7R decoupling capacitor within 3 mm of VDDANA and another on VDDIO; add a 100 nF for high-frequency noise suppression.
Estimated: at typical IoT duty cycles (1% active, 99% sleep), the average power dissipation is below 100 µW and junction temperature rise is negligible. The 24-VQFN's exposed pad (pin 24) must be soldered to a copper pour of at least 25 mm² to meet the thermal resistance spec of 39 °C/W (4-layer JEDEC EIA/JESD51 test board). In continuous active mode at 32 MHz the device consumes ~2.7 mW — still well within thermal limits. Verify sleep-mode current on the bench because PCB leakage paths on I/O pins can easily exceed 100 nA and dominate the device's own quiescent draw.
Estimated: Firmware written without TrustZone-aware memory partitioning loses the device's primary security benefit. Configure linker scripts to split Flash and SRAM into secure (S) and non-secure (NS) regions per ARMv8-M, and use the SAU (Security Attribution Unit) to enforce isolation. Do not leave the SWD pins (PA14/PA15) exposed in production — disable SWD via NVM bits and use secure boot to prevent firmware extraction. Use Microchip MPLAB X IDE with the MCC TrustZone configurator to generate correct startup files; manual edits to startup_saml11.c often break the secure/non-secure attribution model.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page; lead-free reflow compatible; industrial -40°C to +85°C operating range. Not AEC-Q100 qualified — use ATSAML11D14A-E (automotive grade) variants for AEC-Q100 applications. PSA Certified Level 1 ready; refer to Microchip's PSA Level 2 certification reports for tamper-resistance claims.
