ATSAML11D16A-MUT - Cortex-M23 MCU 64KB Flash TrustZone | Microchip
MPN: ATSAML11D16A-MUT ✓ Hoạt độngATSAML11D16A-MUT Tóm tắt
An ARM Cortex-M23 microcontroller is a 32-bit processor core based on the ARMv8-M architecture, designed for embedded systems that require deterministic real-time performance with very low active and standby power consumption. As a microcontroller (MCU), the ATSAML11D16A-MUT integrates the Cortex-M23 CPU core, Flash program memory, SRAM data memory, peripherals, and security subsystems on a single silicon die. Within the broader taxonomy, it belongs to the hierarchy: microcontroller -> embedded processor -> integrated circuit -> semiconductor, with the Cortex-M23 core positioned between the smaller Cortex-M0+ and the higher-performance Cortex-M4 family.
Key features include ARM TrustZone for Cortex-M23 providing hardware isolation between secure and non-secure code regions, a True Random Number Generator (TRNG), Secure Boot, and on-chip cryptographic accelerators. The device consumes less than 25 uA/MHz in active mode and less than 100 nA in sleep mode, making it among the lowest-power Cortex-M23 MCUs available. Additional peripherals include multiple SERCOM interfaces, a 12-bit ADC, a DAC, comparators, timers, and a capacitive touch Peripheral Touch Controller (PTC).
The ATSAML11D16A-MUT is targeted at industrial temperature range applications (operating from -40C to +85C ambient, with internal die capable of reaching higher junction temperatures per the datasheet). Compared to the SAM L10 family, the SAM L11 adds TrustZone and the Crypto accelerator, enabling secure firmware update, anti-counterfeit authentication, and tamper detection. The 4x4 mm VQFN-24 package with exposed pad provides adequate thermal dissipation for the low-power design and a compact footprint for space-constrained IoT modules.
Typical applications include IoT end nodes with secure cloud onboarding, smart meters, secure authentication tokens, anti-counterfeit hardware modules, smart sensors, and battery-powered wearables requiring firmware protection. Designers favor this MCU when their application must combine sub-100 nA sleep current with cryptographic integrity and small form factor.
When designing with the ATSAML11D16A-MUT, ensure the exposed thermal pad is soldered to a sufficiently large copper pour to meet the datasheet's thermal performance specification and that the decoupling network matches the Microchip SAM L11 reference design. Use Microchip's MPLAB X IDE with the MCC (MPLAB Code Configurator) plugin to generate secure and non-secure project partitions.
This page synthesizes distributor pricing tiers, drop-in alternative MPNs, and practical design guidance not found in the manufacturer datasheet, providing engineers with a single decision-ready reference.
Bộ thay thế dễ dàng lắp đặt cho ATSAML11D16A-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 ATSAML11D16A-MUT (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, ADC, Active Current, Core.
ATSAML11D16A-MFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAML11D15A-MU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAML11D14A-MUT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAML11D14A-YUT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAML10D16A-MFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAML11D16A-MUT Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M23 (ARMv8-M, with TrustZone) |
| Tần số xung maksimum | 32 MHz |
| Program Memory (Flash) | 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 |
| Khoảng nhiệt độ hoạt động | -40C to +85C (industrial) |
| Hộp | 24-VQFN (4x4 mm) with exposed pad |
| Security Features | ARM TrustZone, Secure Boot, TRNG, Crypto Accelerator |
| Peripheral Touch Controller (PTC) | Yes (touch support) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATSAML11D16A-MUT
| Chân 1 | VDD — Digital supply voltage |
| Chân 2 | GND — Ground |
| Chân 3 | PA00 — General I/O / SERCOM |
| Chân 4 | PA01 — General I/O / SERCOM |
| Chân 5 | PA02 — General I/O / ADC |
| Chân 6 | PA03 — General I/O / ADC |
| Chân 7 | PA04 — General I/O / SERCOM |
| Chân 8 | PA05 — General I/O / SERCOM |
| Chân 9 | PA06 — General I/O / SERCOM |
| Chân 10 | PA07 — General I/O / SERCOM |
| Chân 11 | PA08 — General I/O / SERCOM |
| Chân 12 | PA09 — General I/O / SERCOM |
| Chân 13 | PA10 — General I/O / SERCOM |
| Chân 14 | PA11 — General I/O / SERCOM |
| Chân 15 | PA14 — General I/O / PTC X-line |
| Chân 16 | PA15 — General I/O / PTC X-line |
| Chân 17 | PA16 — General I/O / PTC Y-line |
| Chân 18 | PA17 — General I/O / PTC Y-line |
| Chân 19 | PA22 — General I/O / SERCOM |
| Chân 20 | PA23 — General I/O / SERCOM |
| Chân 21 | RESET — Reset (active low) |
| Chân 22 | SWDIO — Serial Wire Debug I/O |
| Chân 23 | SWCLK — Serial Wire Debug Clock |
| Chân 24 | EP — Exposed thermal pad - tie to GND |
Ứng dụng tiêu biểu
ATSAML11D16A-MUT phù hợp cho 6 Áp dụngs: Secure IoT End Nodes, Anti-Counterfeit Authentication Tokens, Smart Meter and Utility Endpoints, Battery-Powered Wearable Sensors, Industrial Sensor Hubs, Secure BLE Beacon and Asset Tracker.
Secure IoT End Nodes
The ATSAML11D16A-MUT's ARM Cortex-M23 with TrustZone and hardware crypto accelerator is purpose-built for IoT end nodes that must authenticate to cloud platforms without exposing credentials. Its < 25 uA/MHz active current and < 100 nA sleep current allow coin-cell-powered nodes to operate for years on a single CR2032. Engineers typically pair this MCU with a sub-GHz or BLE transceiver, using the TrustZone secure boot to verify firmware before releasing peripherals to the application. The 24-VQFN (4x4) footprint keeps the BOM small for miniaturized sensor modules.
Được đề xuất
Anti-Counterfeit Authentication Tokens
Authentication tokens and accessory-authentication applications rely on the ATSAML11D16A-MUT's hardware TRNG, secure key storage, and crypto accelerator to perform signed challenge-response exchanges with the host. TrustZone ensures that private keys never leak to the non-secure application domain. The 64 KB Flash holds the cryptographic library and OEM provisioning script, while the 32 MHz Cortex-M23 delivers response latencies below 50 ms. Industrial temperature grade (-40C to +85C) supports outdoor and automotive cabin deployments.
Được đề xuất
Smart Meter and Utility Endpoints
Smart electricity, water, and gas meters require secure firmware update paths and tamper detection - both native to the ATSAML11D16A-MUT through TrustZone and the built-in tamper pin logic. The Cortex-M23 core runs metering firmware at low duty cycle, then enters < 100 nA sleep between measurements, dramatically extending battery life. The 12-bit ADC and PTC peripheral touch controller support direct sensor interface without external components. The 24-VQFN package withstands industrial temperature ranges for outdoor enclosures.
Được đề xuất
Battery-Powered Wearable Sensors
Wearable health and fitness sensors benefit from the ATSAML11D16A-MUT's < 100 nA sleep current, which keeps quiescent draw below the self-discharge of typical coin cells. The Cortex-M23's deterministic interrupt latency enables reliable biometric signal sampling, while the on-chip 12-bit ADC and DAC interface with analog front-end sensors for heart rate, SpO2, or motion. TrustZone secures health data before it leaves the device, addressing HIPAA-style privacy requirements. The 4x4 mm VQFN-24 keeps the PCB footprint smaller than competing Cortex-M0+ designs with similar security.
Được đề xuất
Industrial Sensor Hubs
Industrial 4-20 mA or field-bus sensor hubs use the ATSAML11D16A-MUT to aggregate multiple analog sensors, perform local signal conditioning, and authenticate secure I/O expansions. The industrial -40C to +85C temperature range handles factory-floor environments. Multiple SERCOM peripherals allow concurrent SPI sensor interfaces plus UART/I2C communication to a PLC or gateway. The hardware crypto accelerator supports MACsec-style message authentication for hardened industrial networks.
Được đề xuất
Secure BLE Beacon and Asset Tracker
Asset trackers and BLE beacons require secure firmware to prevent cloning, which the ATSAML11D16A-MUT addresses through TrustZone and secure boot. The Cortex-M23 can host a BLE HCI stack in the 16 KB SRAM plus 64 KB Flash, paired with an external radio such as the Microchip RN4870. Low sleep current (< 100 nA) extends tracker battery life past 2 years on a CR2477. The 24-VQFN footprint fits inside compact tracker enclosures.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAML11D16A-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 | ATSAML11D16A-MFT | ATSAML11D15A-MU | ATSAML11D14A-MUT | ATSAML10D16A-MFT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 |
| Core | ARM Cortex-M23 + TrustZone | ARM Cortex-M23 + TrustZone | ARM Cortex-M23 + TrustZone | ARM Cortex-M23 + TrustZone | ARM Cortex-M23 (no TrustZone) |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 64 KB | 64 KB | 32 KB (-50%) | 16 KB (-75%) | 64 KB |
| SRAM | 16 KB | 16 KB | 8 KB (-50%) | 4 KB (-75%) | 16 KB |
| Hardware Crypto Accelerator | Yes | Yes | Yes | Yes | No |
| 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 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Hardware TrustZone for Cortex-M23 + crypto accelerator in same 24-VQFN (vsATSAML10D16A-MFT)
- Lowest power Cortex-M23 family member with full security (vsGeneric Cortex-M23 MCUs)
- Same-package drop-in scaling from 64 KB to 32 KB Flash (vsATSAML11D15A-MU)
Ghi chú thiết kế
The ATSAML11D16A-MUT draws less than 25 uA/MHz active and less than 100 nA in Sleep mode. Estimated: at 32 MHz active, this is approximately 0.8 mA. Use a 4.7 uF X7R bulk capacitor on VDD plus 100 nF ceramic decoupling on each VDD pin to maintain regulator stability. For battery designs, switch to Sleep mode aggressively between sensor readings to maximize CR2032 life.
The 24-VQFN (4x4 mm) package features an exposed thermal pad (pin 24) that MUST be soldered to a ground copper pour, not left floating. Reference the Microchip SAM L11 datasheet thermal section for the recommended land pattern. For applications drawing continuous 5-10 mA, ensure at least 100 mm^2 of 1 oz copper pour to meet theta_JA and avoid thermal shutdown.
Place the 100 nF decoupling capacitor within 2 mm of each VDD pin. Keep the SWDIO and SWCLK traces short (under 50 mm) and route them away from analog signal paths to avoid coupling debug noise into ADC readings. The exposed pad requires multiple thermal vias (8-12 vias, 0.3 mm drill) to a ground plane on the opposite PCB layer.
Do not enable TrustZone without first provisioning the secure and non-secure regions in the application code - a misconfigured TrustZone setup can lock out debug access. Always verify the secure boot signature key is correctly programmed before locking the device. If firmware update is required, retain a recovery boot path inside the secure domain.
For PTC (Peripheral Touch Controller) applications, route the X/Y lines as a balanced capacitance matrix with no adjacent ground pour directly under the touch area - this prevents parasitic capacitance that reduces touch sensitivity. The datasheet PCB layout appendix provides a reference design for touch buttons and sliders.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product page. Industrial temperature grade (not AEC-Q100 automotive). Halogen-free status not explicitly listed in verified data.
