ATSAMD51N19A-AFT - 120MHz Cortex-M4F MCU 512KB Flash | Microchip
Référence : ATSAMD51N19A-AFT ✓ Actif| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour ATSAMD51N19A-AFT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATSAMD51N19A-AFT (même facteur de forme et même empreinte) — différant par ADC, Package, Core Architecture, DAC, Program Memory (Flash).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAMD51J19A-AFT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$4.8 / unité
Voir la fiche technique →ATSAMD51J20A-AFT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAMD51N19A-AU
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAME51N19A-AFT
✅ Remplacement direct✓ En stock
$4.62 / unité
Voir la fiche technique →ATSAMD51N19A-AFT Valeurs maximales et caractéristiques électriques
| Series | SAM D51 |
| Core Processor | ARM Cortex-M4F |
| Core Size | 32-Bit Single-Core |
| Fréquence d'horloge maximale | 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 |
| Boîtier | 100-pin TQFP (14x14 mm) |
| Type de montage | Surface Mount |
| Tension d'alimentation | 1.71 V to 3.6 V |
| Température de fonctionnement | -40C to +125C (extended) |
| Packaging | Tape & Reel (TR) |
| Statut RoHS | Compliant |
Configuration des broches de ATSAMD51N19A-AFT
| Broche 1 | PA00 — GPIO/EXTINT[0]/SERCOM1.0 |
| Broche 2 | PA01 — GPIO/EXTINT[1]/SERCOM1.1 |
| Broche 3 | PA02 — GPIO/AIN[0]/SERCOM4.0 |
| Broche 4 | PA03 — GPIO/AIN[1]/SERCOM4.1 |
| Broche 5 | VDDIO — Digital I/O supply voltage |
| Broche 6 | GND — Ground |
| Broche 7 | PA04 — GPIO/AIN[2]/SERCOM0.0 |
| Broche 8 | PA05 — GPIO/AIN[3]/SERCOM0.1 |
| Broche 9 | PA07 — GPIO/AIN[5]/SERCOM0.3 |
| Broche 10 | VDDIO — Digital I/O supply voltage |
| Broche 11 | GND — Ground |
| Broche 12 | PA08 — GPIO/SERCOM2.0/I2C-SDA |
| Broche 13 | PA09 — GPIO/SERCOM2.1/I2C-SCL |
| Broche 14 | PA10 — GPIO/SERCOM2.2 |
| Broche 15 | PA11 — GPIO/SERCOM2.3 |
| Broche 16 | PA12 — GPIO/SERCOM4.0 |
| Broche 17 | PA13 — GPIO/SERCOM4.1 |
| Broche 18 | PA14 — GPIO/SERCOM4.2 |
| Broche 19 | PA15 — GPIO/SERCOM4.3 |
| Broche 20 | PA16 — GPIO/SERCOM3.0/I2S-SD0 |
| Broche 21 | PA17 — GPIO/SERCOM3.1/I2S-MCK0 |
| Broche 22 | PA18 — GPIO/SERCOM3.2/I2S-FS0 |
| Broche 23 | PA19 — GPIO/SERCOM3.3/I2S-SCK0 |
| Broche 24 | VDDIO — Digital I/O supply voltage |
| Broche 25 | GND — Ground |
| Broche 26 | PA20 — GPIO/SERCOM5.2 |
| Broche 27 | PA21 — GPIO/SERCOM5.3 |
| Broche 28 | PA22 — GPIO/SERCOM3.0 |
| Broche 29 | PA23 — GPIO/SERCOM3.1 |
| Broche 30 | PA24 — GPIO/SERCOM5.2 |
| Broche 31 | PA25 — GPIO/SERCOM5.3 |
| Broche 32 | PA27 — GPIO |
| Broche 33 | PA28 — GPIO |
| Broche 34 | PA30 — GPIO/SERCOM1.2/CCL-IN2 |
| Broche 35 | PA31 — GPIO/SERCOM1.3/CCL-IN3 |
| Broche 36 | PB00 — GPIO |
| Broche 37 | PB01 — GPIO |
| Broche 38 | PB02 — GPIO/SERCOM5.0 |
| Broche 39 | PB03 — GPIO/SERCOM5.1 |
| Broche 40 | PB04 — GPIO/SERCOM5.2 |
| Broche 41 | PB05 — GPIO/SERCOM5.3 |
| Broche 42 | PB06 — GPIO/SERCOM4.2 |
| Broche 43 | PB07 — GPIO/SERCOM4.3 |
| Broche 44 | PB08 — GPIO/SERCOM4.0/I2S-SD1 |
| Broche 45 | PB09 — GPIO/SERCOM4.1/I2S-MCK1 |
| Broche 46 | PB10 — GPIO/SERCOM4.2/I2S-FS1 |
| Broche 47 | PB11 — GPIO/SERCOM4.3/I2S-SCK1 |
| Broche 48 | VDDIO — Digital I/O supply voltage |
| Broche 49 | GND — Ground |
| Broche 50 | PB12 — GPIO/SERCOM5.0 |
| Broche 51 | PB13 — GPIO/SERCOM5.1 |
| Broche 52 | PB14 — GPIO/SERCOM5.2 |
| Broche 53 | PB15 — GPIO/SERCOM5.3 |
| Broche 54 | PB16 — GPIO/SERCOM1.0/I2S-SD1 |
| Broche 55 | PB17 — GPIO/SERCOM1.1/I2S-MCK1 |
| Broche 56 | PB18 — GPIO/SERCOM1.2/I2S-FS1 |
| Broche 57 | PB19 — GPIO/SERCOM1.3/I2S-SCK1 |
| Broche 58 | PB20 — GPIO/SERCOM3.0 |
| Broche 59 | PB21 — GPIO/SERCOM3.1 |
| Broche 60 | PB22 — GPIO/SERCOM3.2 |
| Broche 61 | PB23 — GPIO/SERCOM3.3 |
| Broche 62 | PB24 — GPIO/SERCOM0.0 |
| Broche 63 | PB25 — GPIO/SERCOM0.1 |
| Broche 64 | PB26 — GPIO/SERCOM2.0/I2C-SDA |
| Broche 65 | PB27 — GPIO/SERCOM2.1/I2C-SCL |
| Broche 66 | PB28 — GPIO/SERCOM2.2 |
| Broche 67 | PB29 — GPIO/SERCOM2.3 |
| Broche 68 | PB30 — GPIO/SERCOM0.0 |
| Broche 69 | PB31 — GPIO/SERCOM0.1 |
| Broche 70 | PC00 — GPIO |
| Broche 71 | PC01 — GPIO |
| Broche 72 | PC02 — GPIO |
| Broche 73 | PC03 — GPIO |
| Broche 74 | VDDIO — Digital I/O supply voltage |
| Broche 75 | GND — Ground |
| Broche 76 | PC04 — GPIO |
| Broche 77 | PC05 — GPIO |
| Broche 78 | PC06 — GPIO |
| Broche 79 | PC07 — GPIO |
| Broche 80 | VDDIO — Digital I/O supply voltage |
| Broche 81 | GND — Ground |
| Broche 82 | PD00 — GPIO |
| Broche 83 | PD01 — GPIO |
| Broche 84 | PD08 — GPIO/XIN |
| Broche 85 | PD09 — GPIO/XOUT |
| Broche 86 | PD10 — GPIO |
| Broche 87 | PD11 — GPIO |
| Broche 88 | PD12 — GPIO |
| Broche 89 | VDDANA — Analog supply voltage |
| Broche 90 | GNDANA — Analog ground |
| Broche 91 | USB_DP — USB Full-Speed Data Plus |
| Broche 92 | USB_DM — USB Full-Speed Data Minus |
| Broche 93 | VDDUSB — USB transceiver supply (3.3V nominal) |
| Broche 94 | RESET_N — Active-low reset input |
| Broche 95 | SWDIO — Serial Wire Debug I/O |
| Broche 96 | SWCLK — Serial Wire Debug Clock |
| Broche 97 | VDDIN — Voltage regulator input |
| Broche 98 | GND — Ground |
| Broche 99 | VDDIO — Digital I/O supply voltage |
| Broche 100 | GND — Ground |
Applications typiques
ATSAMD51N19A-AFT convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAMD51N19A-AFT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Best price-per-Flash ratio in SAMD51 TQFP-100 family (vs ATSAMD51J20A-AFT)
- Pin-compatible with Ethernet-enabled ATSAME51N19A-AFT (vs ATSAME51N19A-AFT)
- Lower BOM cost than STM32F407 or NXP K66 equivalents (vs Cross-brand Cortex-M4F MCU (e.g., STM32F407VGT6))
Notes de conception
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.
Informations de conformité
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).
