ATSAML11E14A-UUTKPH - Cortex-M23 MCU 16KB Flash | Microchip
MPN: ATSAML11E14A-UUTKPH ✓ Hoạt độngATSAML11E14A-UUTKPH Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ATSAML11E14A-UUTKPH — 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 ATSAML11E14A-UUTKPH (cùng hình factor và footprint) — khác nhau ở Core, Package, ADC, Communication Interfaces, DAC.
ATSAML11E15A-UUTKPH
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAML11E16A-UUTKPH
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAML11E14A-MFTKPH
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAML11E14A-MUT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAML11E14A-AUTKPH
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAML11E14A-UUTKPH Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M23 (32-bit, single-core) |
| Instruction Set | ARMv8-M Baseline |
| Tần số xung maksimum | 32 MHz |
| Program Memory (Flash) | 16 KB (16K x 8) |
| SRAM | 8 KB |
| Operating Voltage Range | 1.62 V to 3.63 V |
| Security | ARM TrustZone-M, Crypto Accelerator, Secure Boot, Key Provisioned, Tamper Detection |
| Active Mode Current | < 25 uA/MHz |
| Sleep Mode Current | < 100 nA |
| Hộp | 32-ball WLCSP (2.79 x 2.79 mm) |
| Kiểu lắp đặt | Surface Mount |
| Khoảng nhiệt độ hoạt động | -40C to +85C (industrial) |
| On-chip Peripherals | SERCOM, ADC, DAC, OPAMP, AC, PTC, Event System |
| Trạng thái RoHS | Compliant |
| Packaging | Tape & Reel |
Cấu hình chân ATSAML11E14A-UUTKPH
| Chân A1 | PA00 — General-purpose I/O / SERCOM / ADC |
| Chân A2 | PA01 — General-purpose I/O / SERCOM / ADC |
| Chân A3 | GND — Ground |
| Chân A4 | VDD — Digital supply voltage |
| Chân A5 | VDDIO — I/O supply voltage |
| Chân A6 | RESET — Reset input, active low |
| Chân B1 | PA02 — General-purpose I/O / SERCOM / ADC |
| Chân B2 | PA03 — General-purpose I/O / SERCOM / ADC / REF |
| Chân B3 | PA04 — General-purpose I/O / SERCOM / ADC |
| Chân B4 | PA05 — General-purpose I/O / SERCOM / ADC |
| Chân B5 | PA06 — General-purpose I/O / SERCOM / ADC / OPAMP |
| Chân B6 | PA07 — General-purpose I/O / SERCOM / ADC / OPAMP |
| Chân C1 | PA08 — General-purpose I/O / SERCOM |
| Chân C2 | PA09 — General-purpose I/O / SERCOM |
| Chân C3 | PA10 — General-purpose I/O / SERCOM / PTC |
| Chân C4 | PA11 — General-purpose I/O / SERCOM / PTC |
| Chân C5 | PA14 — General-purpose I/O / SERCOM / PTC |
| Chân C6 | PA15 — General-purpose I/O / SERCOM / PTC |
| Chân D1 | PA16 — General-purpose I/O / SERCOM / PTC |
| Chân D2 | PA17 — General-purpose I/O / SERCOM / PTC |
| Chân D3 | PA18 — General-purpose I/O / SERCOM / PTC |
| Chân D4 | PA19 — General-purpose I/O / SERCOM / PTC |
| Chân D5 | PA22 — General-purpose I/O / SERCOM / PTC |
| Chân D6 | PA23 — General-purpose I/O / SERCOM / PTC |
| Chân E1 | PA24 — General-purpose I/O / SERCOM / PTC |
| Chân E2 | PA25 — General-purpose I/O / SERCOM / PTC |
| Chân E3 | PA27 — General-purpose I/O / SERCOM / PTC / Bootloader |
| Chân E4 | PA28 — General-purpose I/O / SERCOM / PTC |
| Chân E5 | PA30 — General-purpose I/O / SERCOM / SWD CLK |
| Chân E6 | PA31 — General-purpose I/O / SERCOM / SWD IO |
| Chân F1 | GND — Ground |
| Chân F2 | VDD — Digital supply voltage |
Ứng dụng tiêu biểu
ATSAML11E14A-UUTKPH phù hợp cho 6 Áp dụngs: Secure IoT Sensor Nodes, Battery-Powered Wireless Transmitters, Secure Access Control Peripherals, Smart Metering Modules, Capacitive Touch HMI Controllers, Wearable Health Devices.
Secure IoT Sensor Nodes
The ATSAML11E14A-UUTKPH fits secure IoT sensor nodes because its <25 uA/MHz active and <100 nA sleep currents let a coin-cell last the full multi-year service life, while TrustZone-M isolates vendor firmware from user code. The Crypto accelerator handles AES-128/256 handshake payloads without waking the main core, and the integrated ADC plus OPAMP digitizes analog sensors directly without external signal conditioning. Combined with the 32-ball WLCSP at 2.79 x 2.79 mm, the design can shrink below a coin-cell footprint. The 16 KB Flash is sufficient for a sensor driver, secure bootloader, and TLS client stack.
Được đề xuất
Battery-Powered Wireless Transmitters
For battery-powered wireless transmitters such as BLE beacons, LoRaWAN end nodes, or proprietary sub-GHz sensors, the ATSAML11E14A-UUTKPH's <100 nA deep-sleep current with full SRAM retention keeps standby drain negligible. The Event System lets a timer wake the SERCOM directly, transmit a packet, and return to sleep without CPU involvement, minimizing per-packet energy. The 32 MHz Cortex-M23 supports packet handling and AES encryption at speeds that keep TX time short. The small WLCSP-32 footprint preserves board area for the radio front-end and matching network.
Được đề xuất
Secure Access Control Peripherals
Secure access control peripherals such as smart locks, biometric readers, and tamper-detected enclosures benefit from the ATSAML11E14A-UUTKPH's TrustZone-M and tamper pins. The secure world can hold root keys and validate credentials while the non-secure world runs the user-facing UI and connectivity stack, eliminating the need for a separate secure element. The integrated PTC peripheral reads capacitive keys or sliders without extra ICs, and the on-chip OPAMP buffers the analog front-end. Operating voltage from 1.62 V to 3.63 V supports direct Li-ion or 2xAA battery rails.
Được đề xuất
Smart Metering Modules
In smart metering modules for electricity, water, or gas, the ATSAML11E14A-UUTKPH provides a deterministic Cortex-M23 with sufficient peripherals for metrology: the 12-bit ADC and OPAMP digitize current/voltage sensors, the AC handles zero-crossing detection, and the RTC with backup domain keeps timekeeping through main power loss. TrustZone-M protects tariff data and credentials from local tampering, and the secure boot prevents meter firmware substitution. The <100 nA sleep current allows metering of rarely-changing parameters without significant battery cost.
Được đề xuất
Capacitive Touch HMI Controllers
Capacitive touch human-machine interface controllers for appliances, industrial panels, and consumer products leverage the ATSAML11E14A-UUTKPH's integrated Peripheral Touch Controller (PTC), which supports buttons, sliders, and wheels with hardware-driven scanning. The Event System routes touch events directly to GPIO or SERCOM without waking the CPU, keeping idle power below 25 uA/MHz. The integrated OPAMP drives the touch sensing analog front-end, eliminating a dedicated analog IC. The 16 KB Flash holds a touch library, gesture recognition, and secure boot.
Được đề xuất
Wearable Health Devices
For wearable health devices such as fitness bands, heart-rate patches, or continuous glucose monitors, the ATSAML11E14A-UUTKPH's <25 uA/MHz active current and <100 nA sleep current maximize battery life on small Li-Po or coin cells. The integrated 12-bit ADC and OPAMP digitize biosensor signals directly, the DAC drives bias voltages for optical sensors, and the Cortex-M23 core runs DSP filtering at 32 MHz without exceeding the power budget. TrustZone-M isolates personal health data from connectivity firmware, addressing regulatory and privacy requirements. The WLCSP-32 2.79 x 2.79 mm package fits inside a wristband form factor.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAML11E14A-UUTKPH — 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 | ATSAML11E15A-UUTKPH | ATSAML11E16A-UUTKPH | ATSAML11E14A-MFTKPH | ATSAML11E14A-MUT | ATSAML11E14A-AUTKPH |
|---|---|---|---|---|---|---|
| Package | 32-ball WLCSP (2.79x2.79 mm) | 32-ball WLCSP - same | 32-ball WLCSP - same | 32-pin VQFN 5x5 | 32-pin VQFN 5x5 | 32-pin TQFP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M23 | ARM Cortex-M23 | ARM Cortex-M23 | ARM Cortex-M23 | ARM Cortex-M23 | ARM Cortex-M23 |
| Flash | 16 KB | 32 KB | 64 KB | 16 KB | 16 KB | 16 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Maximum Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| TrustZone-M | Yes | Yes | Yes | Yes | Yes | Yes |
| 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 |
Bảo phân biệt quan trọng
- Smallest Flash density with TrustZone-M in WLCSP-32 (vsATSAML11E15A-UUTKPH)
- Hardware-isolated secure world on a Cortex-M23 (vsATSAML10E14A)
- Pre-provisioned secure keys (-KPH suffix) (vsATSAML11E14A-UUT)
Ghi chú thiết kế
Use a 1 uF X7R ceramic decoupling capacitor within 2 mm of each VDD/VDDIO ball, plus a bulk 4.7 uF on the main rail. Enable the on-chip voltage regulator's low-power mode for sleep currents below 100 nA. Tie unused I/O balls to GND or VDD with software-configured pull to avoid leakage paths that can double standby current on WLCSP-32 designs.
WLCSP-32 demands a 0.4 mm pitch land pattern with non-solder-mask-defined (NSMD) pads. Use ENIG or OSP surface finish; HASL is not recommended for 0.4 mm pitch. Keep high-speed traces (SWD, SERCOM SPI) short and impedance-controlled. Maintain a continuous ground plane under the package to dissipate heat and provide a low-impedance return path for the SERCOM and ADC signals.
Misconfigured TrustZone-M memory attributes are the most common field failure source. Configure the NVMCTRL, HMATRIX, and IDAU settings through MPLAB Harmony Configurator before writing any application code; do not hand-edit linker scripts for secure/non-secure partitioning. Also verify the BOOTPROT bits on first programming to lock the bootloader region against post-deployment modification.
When using the 12-bit ADC at > 200 ksamples/s, place a 100 nF X7R capacitor close to the analog supply pin and route analog grounds as a star to the AGND ball. The integrated OPAMP output can drive the ADC input directly; add a series resistor (50 to 100 ohm) to limit ADC sampling current and reduce kickback. For SERCOM SPI above 8 MHz, add a 22 to 33 ohm series resistor at the source pin to control edge rates.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40C to +85C. NOT AEC-Q100 qualified - choose an automotive SAM L11 variant for AEC-Q100 applications.
