ATSAML11E14A-UUTKPH - Cortex-M23 MCU 16KB Flash | Microchip
N.º de pieza: ATSAML11E14A-UUTKPH ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.42 | $3,42 |
| 10 | $3.08 | $30,80 |
| 100 | $2.74 | $274,00 |
| 500 | $2.45 | $1.225,00 |
| 1.000 | $2.18 | $2.180,00 |
| 3.000 | $1.92 | $5.760,00 |
ATSAML11E14A-UUTKPH Descripción general
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.
Alternativas directas para ATSAML11E14A-UUTKPH — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ATSAML11E14A-UUTKPH (mismo factor de forma y huella) — difiere en Core, Package, ADC, Communication Interfaces, DAC.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ATSAML11E15A-UUTKPH
✅ Sustitución directa✓ En stock
$2.01 / unidad
Ver hoja de datos →ATSAML11E16A-UUTKPH
✅ Sustitución directa✓ En stock
$2.97 / unidad
Ver hoja de datos →ATSAML11E14A-MFTKPH
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ATSAML11E14A-MUT
✅ Sustitución directa✓ En stock
$1.95 / unidad
Ver hoja de datos →ATSAML11E14A-AUTKPH
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ATSAML11E14A-UUTKPH Valores máximos y características eléctricas
| Core | ARM Cortex-M23 (32-bit, single-core) |
| Instruction Set | ARMv8-M Baseline |
| Frecuencia de reloj máxima | 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 |
| Encapsulado | 32-ball WLCSP (2.79 x 2.79 mm) |
| Tipo de montaje | Surface Mount |
| Rango de temperatura de funcionamiento | -40C to +85C (industrial) |
| On-chip Peripherals | SERCOM, ADC, DAC, OPAMP, AC, PTC, Event System |
| Estado RoHS | Compliant |
| Packaging | Tape & Reel |
Configuración de pines de ATSAML11E14A-UUTKPH
| Pin A1 | PA00 — General-purpose I/O / SERCOM / ADC |
| Pin A2 | PA01 — General-purpose I/O / SERCOM / ADC |
| Pin A3 | GND — Ground |
| Pin A4 | VDD — Digital supply voltage |
| Pin A5 | VDDIO — I/O supply voltage |
| Pin A6 | RESET — Reset input, active low |
| Pin B1 | PA02 — General-purpose I/O / SERCOM / ADC |
| Pin B2 | PA03 — General-purpose I/O / SERCOM / ADC / REF |
| Pin B3 | PA04 — General-purpose I/O / SERCOM / ADC |
| Pin B4 | PA05 — General-purpose I/O / SERCOM / ADC |
| Pin B5 | PA06 — General-purpose I/O / SERCOM / ADC / OPAMP |
| Pin B6 | PA07 — General-purpose I/O / SERCOM / ADC / OPAMP |
| Pin C1 | PA08 — General-purpose I/O / SERCOM |
| Pin C2 | PA09 — General-purpose I/O / SERCOM |
| Pin C3 | PA10 — General-purpose I/O / SERCOM / PTC |
| Pin C4 | PA11 — General-purpose I/O / SERCOM / PTC |
| Pin C5 | PA14 — General-purpose I/O / SERCOM / PTC |
| Pin C6 | PA15 — General-purpose I/O / SERCOM / PTC |
| Pin D1 | PA16 — General-purpose I/O / SERCOM / PTC |
| Pin D2 | PA17 — General-purpose I/O / SERCOM / PTC |
| Pin D3 | PA18 — General-purpose I/O / SERCOM / PTC |
| Pin D4 | PA19 — General-purpose I/O / SERCOM / PTC |
| Pin D5 | PA22 — General-purpose I/O / SERCOM / PTC |
| Pin D6 | PA23 — General-purpose I/O / SERCOM / PTC |
| Pin E1 | PA24 — General-purpose I/O / SERCOM / PTC |
| Pin E2 | PA25 — General-purpose I/O / SERCOM / PTC |
| Pin E3 | PA27 — General-purpose I/O / SERCOM / PTC / Bootloader |
| Pin E4 | PA28 — General-purpose I/O / SERCOM / PTC |
| Pin E5 | PA30 — General-purpose I/O / SERCOM / SWD CLK |
| Pin E6 | PA31 — General-purpose I/O / SERCOM / SWD IO |
| Pin F1 | GND — Ground |
| Pin F2 | VDD — Digital supply voltage |
Aplicaciones típicas
ATSAML11E14A-UUTKPH es adecuado para 6 aplicacións: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ATSAML11E14A-UUTKPH — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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 |
Diferenciadores clave
- Smallest Flash density with TrustZone-M in WLCSP-32 (frente a ATSAML11E15A-UUTKPH)
- Hardware-isolated secure world on a Cortex-M23 (frente a ATSAML10E14A)
- Pre-provisioned secure keys (-KPH suffix) (frente a ATSAML11E14A-UUT)
Notas de diseño
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.
Información de cumplimiento
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.
