ATSAML11D14A-YFT - ARM Cortex-M23 MCU 16KB Flash | Microchip
N.º da peça: ATSAML11D14A-YFT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.17 | $3,17 |
| 10 | $2.86 | $28,60 |
| 100 | $2.55 | $255,00 |
| 500 | $2.24 | $1.120,00 |
| 1.000 | $1.97 | $1.970,00 |
ATSAML11D14A-YFT Visão geral
Background knowledge: A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile memory (SRAM), non-volatile program memory (Flash), and a rich set of peripheral IPs into one package. The ARM Cortex-M23 core is an Armv8-M baseline architecture targeted at deeply embedded, energy-constrained, and security-sensitive IoT endpoints. Microcontrollers fall within the broader category hierarchy of microcontroller -> embedded processor -> semiconductor -> integrated circuit.
Key features include 16 KB of Flash, 8 KB of SRAM, an active current below 25 uA/MHz, sleep current below 100 nA, and on-chip crypto accelerators supporting AES, SHA, and True Random Number Generation. TrustZone for ARMv8-M isolates secure firmware from normal firmware, and the part supports secure boot with immutable root-of-trust.
Architecturally the device uses a single-core 32-bit Cortex-M23 pipeline with hardware single-cycle multiplier and a Nested Vectored Interrupt Controller (NVIC). Peripherals include multiple SERCOM (serial communication) instances configurable as UART, SPI, or I2C, 12-bit ADC, 10-bit DAC, comparators, timers, and RTC. The 24-pin SSOP package is industry-standard and enables hand-solderable prototypes alongside volume SMD assembly.
Typical applications include IoT end nodes with secure firmware update, smart energy metering, medical sensors requiring HIPAA-grade data isolation, secure industrial HMI panels, building automation controllers, and battery-powered wearable devices. The combination of TrustZone and ultra-low sleep current makes it ideal for always-on edge devices.
When designing with this part, place a 100 nF decoupling capacitor as close as possible to every VDD pin and follow the SAM L11 hardware design checklist for the 24-pin SSOP. Choose the boot mode strap resistors carefully because TrustZone secure-boot configuration is latched at reset.
This page synthesizes distributor pricing, drop-in SAM L11 alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternativas drop-in para ATSAML11D14A-YFT — 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 ATSAML11D14A-YFT (mesmo formato e footprint) — diferindo em Package, Core, ADC, Core Architecture, Operating Temperature.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAML11D14A-YU
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$1.65 / unidade
Ver ficha técnica →ATSAML10D15A-YFT
✅ Drop-In✓ Em estoque
$2.1 / unidade
Ver ficha técnica →ATSAML10D16A-YU
✅ Drop-In✓ Em estoque
$2.18 / unidade
Ver ficha técnica →ATSAML11D14A-YFT Classificações máximas e características elétricas
| Core Architecture | ARM Cortex-M23 (Armv8-M baseline) |
| CPU Core Count | 1 (Single-core) |
| Maximum CPU Frequency | 32 MHz |
| Bit Width | 32-bit |
| Program Flash Memory | 16 KB (16K x 8) |
| SRAM | 8 KB |
| Supply Voltage Range | 1.62 V to 3.63 V |
| Faixa de temperatura de operação | -40 C to +125 C (industrial) |
| Encapsulamento | 24-pin SSOP |
| Tipo de montagem | Surface Mount |
| Security Features | ARM TrustZone for ARMv8-M, secure boot, secure key storage, tamper detection |
| Crypto Acceleration | AES, SHA, TRNG (True Random Number Generator) |
| Operating Temperature Grade | 125 C (extended industrial) |
| Status RoHS | Compliant |
| Lead-Free | Yes |
Configuração de pinos do ATSAML11D14A-YFT
| Pino 1 | VDD — Digital supply voltage |
| Pino 2 | PA00 — GPIO / SERCOM / ADC |
| Pino 3 | PA01 — GPIO / SERCOM / ADC |
| Pino 4 | PA02 — GPIO / SERCOM / ADC |
| Pino 5 | PA03 — GPIO / SERCOM / ADC |
| Pino 6 | GND — Ground |
| Pino 7 | PA04 — GPIO / SERCOM / VREF |
| Pino 8 | PA05 — GPIO / SERCOM |
| Pino 9 | PA06 — GPIO / SERCOM |
| Pino 10 | PA07 — GPIO / SERCOM |
| Pino 11 | PA08 — GPIO / SERCOM / ADC |
| Pino 12 | PA09 — GPIO / SERCOM / ADC |
| Pino 13 | PA10 — GPIO / SERCOM / ADC |
| Pino 14 | PA11 — GPIO / SERCOM / ADC |
| Pino 15 | VDDIO — I/O supply voltage |
| Pino 16 | GND — Ground |
| Pino 17 | PA12 — GPIO / SERCOM |
| Pino 18 | PA13 — GPIO / SERCOM |
| Pino 19 | PA14 — GPIO / SERCOM / XIN |
| Pino 20 | PA15 — GPIO / SERCOM / XOUT |
| Pino 21 | RESET — Reset input, active low |
| Pino 22 | PA16 — GPIO / SERCOM |
| Pino 23 | PA17 — GPIO / SERCOM |
| Pino 24 | PA18 — GPIO / SERCOM |
Aplicações típicas
ATSAML11D14A-YFT é adequado para 6 aplicaçãos: Secure IoT End Node, Smart Energy Metering, Medical Wearable Sensor, Secure Industrial HMI Panel, Building Automation Controller, Battery-Powered Edge Sensor.
Secure IoT End Node
The ATSAML11D14A-YFT's ARM TrustZone for ARMv8-M, secure boot, and AES/SHA/TRNG hardware crypto make it ideal for IoT end nodes that require authenticated firmware updates and tamper-resistant key storage. The 32 MHz Cortex-M23 core handles MQTT-SN or CoAP protocol stacks while active current stays below 25 uA/MHz. With 16 KB Flash and 8 KB SRAM, the part supports typical TLS 1.3 client libraries sized for constrained devices. Sleep current under 100 nA enables multi-year battery life on coin cells for door sensors, smart locks, and asset trackers.
Recomendado
Smart Energy Metering
Smart electricity, gas, and water meters demand secure firmware, long battery life, and accurate analog measurement. The ATSAML11D14A-YFT integrates a 12-bit ADC capable of sampling current and voltage waveforms for Class-1 metering accuracy, and TrustZone isolates the metrology firmware from the communication stack to prevent tampering. Active current below 25 uA/MHz and sleep current under 100 nA allow 10+ year battery operation. The 24-pin SSOP package supports hand-rework during meter field service.
Recomendado
Medical Wearable Sensor
Wearable medical sensors such as continuous glucose monitors, pulse oximeters, and ECG patches require low power, small size, and patient-data isolation. The ATSAML11D14A-YFT's TrustZone partitions patient data behind secure firmware gates, satisfying HIPAA-style data-handling expectations. Sleep current under 100 nA enables multi-day patches on coin cells, while the Cortex-M23 core runs compression algorithms for Bluetooth Low Energy transmission. The extended -40 C to +125 C temperature range supports body-worn thermal cycling.
Recomendado
Secure Industrial HMI Panel
Industrial human-machine interface panels controlling machinery require secure firmware to prevent unauthorized parameter changes. The ATSAML11D14A-YFT's TrustZone isolates calibration and access-control code from the user-interface stack, while AES/SHA/TRNG accelerate authentication. The 24-pin SSOP supports standard panel PCB assembly, and -40 C to +125 C operation tolerates factory-floor thermal extremes. Multiple timers and PWM channels drive backlight dimming and buzzer feedback.
Recomendado
Building Automation Controller
Smart-building devices such as HVAC controllers, occupancy sensors, and access-control readers benefit from the ATSAML11D14A-YFT's low power and security features. TrustZone secures the BACnet or KNX communication credentials, and the Cortex-M23 core runs scheduling logic. Multiple SERCOM peripherals are configurable as UART, SPI, or I2C to interface with environmental sensors, motor drivers, and RS-485 transceivers. The SSOP-24 footprint fits standard 32 mm x 32 mm thermostat PCBs.
Recomendado
Battery-Powered Edge Sensor
Battery-powered wireless sensor nodes in agriculture, logistics, and environmental monitoring benefit from the ATSAML11D14A-YFT's sub-100 nA sleep current and 25 uA/MHz active current. The Cortex-M23 core wakes from RTC or sensor interrupts to read temperature, humidity, or vibration data, sign it with the hardware TRNG-driven key, and transmit via a connected radio module over SERCOM SPI. Secure boot prevents firmware substitution attacks in remote deployments.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAML11D14A-YFT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAML11D14A-MUT | ATSAML11D14A-YU | ATSAML10D15A-YFT | ATSAML10D16A-YU |
|---|---|---|---|---|---|
| Package | 24-pin SSOP | 24-pin QFN - different footprint | 24-pin SSOP - same footprint | 24-pin SSOP - same footprint | 24-pin SSOP - same footprint |
| Brand | 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 |
| Maximum Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 4 KB | 8 KB |
| ARM TrustZone | Yes (ARMv8-M TrustZone) | Yes (same die) | Yes (same die) | No (SAM L10 family) | No (SAM L10 family) |
| Supply Voltage Range | 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 +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C |
Principais diferenciais
- ARM TrustZone for ARMv8-M hardware isolation (vs ATSAML10D15A-YFT)
- SSOP-24 footprint with hand-solderable 0.65 mm pitch (vs ATSAML11D14A-MUT)
- Extended -40 C to +125 C industrial temperature grade (vs ATSAML11D14A-MUT)
Notas de projeto
Decouple every VDD and VDDIO pin with a 100 nF ceramic capacitor placed within 2 mm of the pin per the SAM L11 hardware design checklist. For battery applications, use an additional 4.7 uF bulk capacitor on VDD to handle SERCOM transmit inrush. Active current is specified below 25 uA/MHz and sleep current below 100 nA - measure on your board because quiescent current is dominated by leakage from GPIO pull-ups if enabled.
TrustZone secure-boot configuration is latched at reset, so the BOOTPROT and NVMCTRL fuse bits must be programmed before the first production firmware flash. Once locked, these fuses cannot be reversed. Plan firmware-update infrastructure to use signed images validated by the secure boot ROM. Do not assume TrustZone is off by default; the part ships in a Secure state and requires explicit Non-Secure Callable (NSC) function declarations in your linker script.
The 24-pin SSOP is a 0.65 mm pitch package. Route power traces at least 0.3 mm wide and place a ground pour under the IC body to provide thermal spreading and reference-plane stitching. Keep SERCOM signal traces shorter than 50 mm and add source-series termination (33 ohm) for SPI signals above 10 MHz. Avoid routing high-current LED or motor traces directly under the MCU to prevent injected switching noise on VDD.
Place the 32.768 kHz crystal within 5 mm of XIN/XOUT pins (PA14/PA15) with a guard ring tied to analog ground. The internal load capacitor configuration must match the crystal's load specification (typically 12.5 pF). For low-EMI designs, route the crystal traces symmetrically and avoid crossing any digital signal paths.
Informações de conformidade
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - for automotive applications consult Microchip's SAM automotive grade portfolio.
