ATSAMD51N19A-AFT - 120MHz Cortex-M4F MCU 512KB Flash | Microchip
N.º de pieza: ATSAMD51N19A-AFT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $8.07 | $8,07 |
| 10 | $7.15 | $71,50 |
| 100 | $6.2 | $620,00 |
| 500 | $5.4 | $2.700,00 |
| 1.000 | $4.8 | $4.800,00 |
ATSAMD51N19A-AFT Descripción general
A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, working RAM, and a configurable peripheral set on one die, used to sense, decide, and actuate in embedded systems. Within the power-management hierarchy, MCUs sit at the application layer above voltage regulators and clock sources, while the Cortex-M4F architecture positions the SAM D51 between Cortex-M0+ entry-level MCUs and Cortex-M7 high-end devices, balancing deterministic real-time control with DSP and FPU throughput.
Key features include hardware accelerated Floating Point, DSP extensions, deterministic 12-channel event system, Dual-bank Flash with ECC for safe firmware updates, and an integrated Full-Speed USB PHY. The device supports industrial-grade operating temperatures and integrates Microchip's Harmony 3 framework for rapid application development, with pin-compatible migration paths to larger Flash variants within the same SAM D51 family.
Typical applications include human-machine interface (HMI) panels with TFT displays, industrial motor control, USB-based audio interfaces, IoT edge nodes, and precision sensor fusion. The integrated DSP instructions and FPU make the ATSAMD51N19A-AFT especially suited to digital filtering, motor commutation math, and audio processing without burdening the CPU with software emulation.
Design consideration: when migrating firmware from the SAM D20/D10 families, pay attention to the new event system timing and SERCOM multiplexed address map - GPIO pin functions are remapped through the PORT and SERCOM peripheral select registers, so existing board layouts may require new firmware configuration. This part page consolidates distributor pricing, drop-in TQFP-100 alternatives, and practical design notes beyond what the manufacturer datasheet provides.
Alternativas directas para ATSAMD51N19A-AFT — 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 ATSAMD51N19A-AFT (mismo factor de forma y huella) — difiere en ADC, Package, Core Architecture, DAC, Program Memory (Flash).
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ATSAMD51J19A-AFT
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$4.8 / unidad
Ver hoja de datos →ATSAMD51J20A-AFT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ATSAMD51N19A-AU
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ATSAME51N19A-AFT
✅ Sustitución directa✓ En stock
$4.62 / unidad
Ver hoja de datos →ATSAMD51N19A-AFT Valores máximos y características eléctricas
| Series | SAM D51 |
| Core Processor | ARM Cortex-M4F |
| Core Size | 32-Bit Single-Core |
| Frecuencia de reloj máxima | 120 MHz |
| FPU | Yes (single-precision) |
| DSP Extensions | Yes |
| Program Memory Size (Flash) | 512 KB (512K x 8) |
| Flash ECC | Yes (Dual-Panel) |
| SRAM Size | 192 KB with ECC |
| Encapsulado | 100-pin TQFP (14x14 mm) |
| Tipo de montaje | Surface Mount |
| Tensión de alimentación | 1.71 V to 3.6 V |
| Temperatura de funcionamiento | -40C to +125C (extended) |
| Packaging | Tape & Reel (TR) |
| Estado RoHS | Compliant |
Configuración de pines de ATSAMD51N19A-AFT
| Pin 1 | PA00 — GPIO/EXTINT[0]/SERCOM1.0 |
| Pin 2 | PA01 — GPIO/EXTINT[1]/SERCOM1.1 |
| Pin 3 | PA02 — GPIO/AIN[0]/SERCOM4.0 |
| Pin 4 | PA03 — GPIO/AIN[1]/SERCOM4.1 |
| Pin 5 | VDDIO — Digital I/O supply voltage |
| Pin 6 | GND — Ground |
| Pin 7 | PA04 — GPIO/AIN[2]/SERCOM0.0 |
| Pin 8 | PA05 — GPIO/AIN[3]/SERCOM0.1 |
| Pin 9 | PA07 — GPIO/AIN[5]/SERCOM0.3 |
| Pin 10 | VDDIO — Digital I/O supply voltage |
| Pin 11 | GND — Ground |
| Pin 12 | PA08 — GPIO/SERCOM2.0/I2C-SDA |
| Pin 13 | PA09 — GPIO/SERCOM2.1/I2C-SCL |
| Pin 14 | PA10 — GPIO/SERCOM2.2 |
| Pin 15 | PA11 — GPIO/SERCOM2.3 |
| Pin 16 | PA12 — GPIO/SERCOM4.0 |
| Pin 17 | PA13 — GPIO/SERCOM4.1 |
| Pin 18 | PA14 — GPIO/SERCOM4.2 |
| Pin 19 | PA15 — GPIO/SERCOM4.3 |
| Pin 20 | PA16 — GPIO/SERCOM3.0/I2S-SD0 |
| Pin 21 | PA17 — GPIO/SERCOM3.1/I2S-MCK0 |
| Pin 22 | PA18 — GPIO/SERCOM3.2/I2S-FS0 |
| Pin 23 | PA19 — GPIO/SERCOM3.3/I2S-SCK0 |
| Pin 24 | VDDIO — Digital I/O supply voltage |
| Pin 25 | GND — Ground |
| Pin 26 | PA20 — GPIO/SERCOM5.2 |
| Pin 27 | PA21 — GPIO/SERCOM5.3 |
| Pin 28 | PA22 — GPIO/SERCOM3.0 |
| Pin 29 | PA23 — GPIO/SERCOM3.1 |
| Pin 30 | PA24 — GPIO/SERCOM5.2 |
| Pin 31 | PA25 — GPIO/SERCOM5.3 |
| Pin 32 | PA27 — GPIO |
| Pin 33 | PA28 — GPIO |
| Pin 34 | PA30 — GPIO/SERCOM1.2/CCL-IN2 |
| Pin 35 | PA31 — GPIO/SERCOM1.3/CCL-IN3 |
| Pin 36 | PB00 — GPIO |
| Pin 37 | PB01 — GPIO |
| Pin 38 | PB02 — GPIO/SERCOM5.0 |
| Pin 39 | PB03 — GPIO/SERCOM5.1 |
| Pin 40 | PB04 — GPIO/SERCOM5.2 |
| Pin 41 | PB05 — GPIO/SERCOM5.3 |
| Pin 42 | PB06 — GPIO/SERCOM4.2 |
| Pin 43 | PB07 — GPIO/SERCOM4.3 |
| Pin 44 | PB08 — GPIO/SERCOM4.0/I2S-SD1 |
| Pin 45 | PB09 — GPIO/SERCOM4.1/I2S-MCK1 |
| Pin 46 | PB10 — GPIO/SERCOM4.2/I2S-FS1 |
| Pin 47 | PB11 — GPIO/SERCOM4.3/I2S-SCK1 |
| Pin 48 | VDDIO — Digital I/O supply voltage |
| Pin 49 | GND — Ground |
| Pin 50 | PB12 — GPIO/SERCOM5.0 |
| Pin 51 | PB13 — GPIO/SERCOM5.1 |
| Pin 52 | PB14 — GPIO/SERCOM5.2 |
| Pin 53 | PB15 — GPIO/SERCOM5.3 |
| Pin 54 | PB16 — GPIO/SERCOM1.0/I2S-SD1 |
| Pin 55 | PB17 — GPIO/SERCOM1.1/I2S-MCK1 |
| Pin 56 | PB18 — GPIO/SERCOM1.2/I2S-FS1 |
| Pin 57 | PB19 — GPIO/SERCOM1.3/I2S-SCK1 |
| Pin 58 | PB20 — GPIO/SERCOM3.0 |
| Pin 59 | PB21 — GPIO/SERCOM3.1 |
| Pin 60 | PB22 — GPIO/SERCOM3.2 |
| Pin 61 | PB23 — GPIO/SERCOM3.3 |
| Pin 62 | PB24 — GPIO/SERCOM0.0 |
| Pin 63 | PB25 — GPIO/SERCOM0.1 |
| Pin 64 | PB26 — GPIO/SERCOM2.0/I2C-SDA |
| Pin 65 | PB27 — GPIO/SERCOM2.1/I2C-SCL |
| Pin 66 | PB28 — GPIO/SERCOM2.2 |
| Pin 67 | PB29 — GPIO/SERCOM2.3 |
| Pin 68 | PB30 — GPIO/SERCOM0.0 |
| Pin 69 | PB31 — GPIO/SERCOM0.1 |
| Pin 70 | PC00 — GPIO |
| Pin 71 | PC01 — GPIO |
| Pin 72 | PC02 — GPIO |
| Pin 73 | PC03 — GPIO |
| Pin 74 | VDDIO — Digital I/O supply voltage |
| Pin 75 | GND — Ground |
| Pin 76 | PC04 — GPIO |
| Pin 77 | PC05 — GPIO |
| Pin 78 | PC06 — GPIO |
| Pin 79 | PC07 — GPIO |
| Pin 80 | VDDIO — Digital I/O supply voltage |
| Pin 81 | GND — Ground |
| Pin 82 | PD00 — GPIO |
| Pin 83 | PD01 — GPIO |
| Pin 84 | PD08 — GPIO/XIN |
| Pin 85 | PD09 — GPIO/XOUT |
| Pin 86 | PD10 — GPIO |
| Pin 87 | PD11 — GPIO |
| Pin 88 | PD12 — GPIO |
| Pin 89 | VDDANA — Analog supply voltage |
| Pin 90 | GNDANA — Analog ground |
| Pin 91 | USB_DP — USB Full-Speed Data Plus |
| Pin 92 | USB_DM — USB Full-Speed Data Minus |
| Pin 93 | VDDUSB — USB transceiver supply (3.3V nominal) |
| Pin 94 | RESET_N — Active-low reset input |
| Pin 95 | SWDIO — Serial Wire Debug I/O |
| Pin 96 | SWCLK — Serial Wire Debug Clock |
| Pin 97 | VDDIN — Voltage regulator input |
| Pin 98 | GND — Ground |
| Pin 99 | VDDIO — Digital I/O supply voltage |
| Pin 100 | GND — Ground |
Aplicaciones típicas
ATSAMD51N19A-AFT es adecuado para 6 aplicacións: Human-Machine Interface (HMI) Panels, Industrial Motor Control, USB Audio Interfaces, IoT Edge Sensor Hubs, Precision Sensor Fusion, Automotive Body Electronics.
Human-Machine Interface (HMI) Panels
The ATSAMD51N19A-AFT's 120 MHz Cortex-M4F core and TFT display peripherals suit HMI panels with 320x240 to 480x272 TFT-LCD screens. With 512 KB Flash and 192 KB SRAM, it can host graphical user interfaces using LVGL or Microchip's MPLAB Harmony graphics library. The integrated QSPI interface allows extending Flash with external NOR memory for asset libraries and bitmaps.
Recomendado
Industrial Motor Control
The Cortex-M4F DSP extensions and FPU accelerate FOC (field-oriented control) algorithms for BLDC and PMSM motors. Six SERCOM channels support quadrature encoder, Hall sensors, and SPI-based smart gate drivers. CAN-FD enables integration with industrial automation networks, and 192 KB SRAM fits trajectory buffers and PID state variables without external memory.
Recomendado
USB Audio Interfaces
The integrated Full-Speed USB 2.0 device/host controller with on-chip PHY supports USB Audio Class 1.0 at 48 kHz / 24-bit without an external transceiver. Two I2S channels enable simultaneous input and output paths. Compared to using an external USB bridge, the ATSAMD51N19A-AFT reduces BOM cost while keeping latency low for real-time monitoring applications.
Recomendado
IoT Edge Sensor Hubs
Battery-powered IoT edge devices benefit from the SAM D51's deep SleepWalking modes that wake only on GPIO event or RTC timer, dropping quiescent current to microampere levels. Six SERCOM channels support multi-protocol sensor aggregation (I2C/SPI/UART), while CAN-FD enables industrial bus connectivity. The Cortex-M4F DSP accelerates on-device FFT and threshold-detection algorithms.
Recomendado
Precision Sensor Fusion
Fusing IMU, magnetometer, and barometric data requires floating-point matrix math - exactly what the Cortex-M4F FPU accelerates. The 12-bit 1 MSPS ADC captures analog sensor channels with 13 effective bits in oversampling mode. With ECC-protected Flash and SRAM, sensor logs remain uncorrupted even in noisy industrial environments.
Recomendado
Automotive Body Electronics
Although the ATSAMD51N19A-AFT is industrial-grade, the SAM D51 family includes AEC-Q100 variants (such as ATSAME51N19A-AFT automotive Q1) for body-control modules, lighting controllers, and HVAC panels. CAN-FD and LIN support directly integrate with vehicle bus networks, while the extended temperature range (-40C to +125C) tolerates under-hood environments.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ATSAMD51N19A-AFT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ATSAMD51J19A-AFT | ATSAMD51J20A-AFT | ATSAMD51N19A-AU | ATSAME51N19A-AFT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (14x14 mm) | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same |
| Core Processor | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz |
| Flash Memory | 512 KB | 512 KB | 1 MB (+100%) | 512 KB | 512 KB |
| SRAM | 192 KB | 192 KB | 256 KB | 192 KB | 192 KB |
| Ethernet MAC | No | No | No | No | Yes (10/100 Mbps) |
| USB PHY | Integrated Full-Speed | Integrated Full-Speed | Integrated Full-Speed | Integrated Full-Speed | Integrated Full-Speed |
| CAN-FD | 2 channels | 2 channels | 2 channels | 2 channels | 2 channels |
| SERCOM Channels | 6 | 6 | 6 | 6 | 8 (+2) |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
Diferenciadores clave
- Best price-per-Flash ratio in SAMD51 TQFP-100 family (frente a ATSAMD51J20A-AFT)
- Pin-compatible with Ethernet-enabled ATSAME51N19A-AFT (frente a ATSAME51N19A-AFT)
- Lower BOM cost than STM32F407 or NXP K66 equivalents (frente a Cross-brand Cortex-M4F MCU (e.g., STM32F407VGT6))
Notas de diseño
Decoupling: Place 100 nF X7R ceramic capacitors as close as possible to each VDDIO pin (5 pins total on TQFP-100), one 4.7 uF bulk capacitor on VDDIN, and one 100 nF on VDDANA. The integrated core LDO requires a 1 uF capacitor on its output for stability. Estimated: total budgeted decoupling capacitance is approximately 22 uF distributed across the PCB; using a single shared bulk is not recommended because peak current transients during USB Full-Speed transmission can dip the analog rails.
Crystal layout: route the XIN/XOUT traces symmetrically with matching length to within 1 mm, shield them with a GND guard ring, and keep them short (< 5 mm total length). Place load capacitors within 3 mm of the XIN/XOUT pins. Avoid routing noisy signals (USB DP/DM, RF traces) under or adjacent to the crystal trace pair to prevent frequency modulation and EMI.
Bootloader and ECC: the SAM D51's ECC-protected Flash requires a 4-byte-aligned write granularity. Pointers and structs that are not 4-byte aligned can trigger HardFault on Flash erase/program operations. Always configure the NVMCTRL with a 32-bit data width and enable the smart-eepage write mode when using Harmony 3 NVM drivers. The Dual-Panel Flash feature requires both panels to be sized identically; mismatched sizes will silently disable safe firmware upgrades.
USB trace design: route USB_DP and USB_DM as a 90 ohm differential impedance pair with matching length (< 50 mil delta), and place the USB common-mode choke within 5 mm of the connector. Place a 10 uF bulk capacitor on VDDUSB to satisfy USB inrush-current requirements. The on-chip PHY integrates the 1.5 kohm pull-up resistor; external pull-up is not required.
Información de cumplimiento
RoHS compliant per Microchip product page. Industrial-grade -40C to +125C. AEC-Q100 grade variants available in the SAM E51 family (e.g., ATSAME51N19A-AFT automotive Q1).
