ATSAMD51N19A-AFT - 120MHz Cortex-M4F MCU 512KB Flash | Microchip
N.º da peça: ATSAMD51N19A-AFT ✓ Ativo| Qtd. | Preço unitário | 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 Visão geral
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 drop-in para ATSAMD51N19A-AFT — 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 ATSAMD51N19A-AFT (mesmo formato e footprint) — diferindo em ADC, Package, Core Architecture, DAC, Program Memory (Flash).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAMD51J19A-AFT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.8 / unidade
Ver ficha técnica →ATSAMD51J20A-AFT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATSAMD51N19A-AU
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATSAME51N19A-AFT
✅ Drop-In✓ Em estoque
$4.62 / unidade
Ver ficha técnica →ATSAMD51N19A-AFT Classificações máximas e características elétricas
| Series | SAM D51 |
| Core Processor | ARM Cortex-M4F |
| Core Size | 32-Bit Single-Core |
| Frequência máxima de clock | 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 |
| Encapsulamento | 100-pin TQFP (14x14 mm) |
| Tipo de montagem | Surface Mount |
| Tensão de alimentação | 1.71 V to 3.6 V |
| Temperatura de operação | -40C to +125C (extended) |
| Packaging | Tape & Reel (TR) |
| Status RoHS | Compliant |
Configuração de pinos do ATSAMD51N19A-AFT
| Pino 1 | PA00 — GPIO/EXTINT[0]/SERCOM1.0 |
| Pino 2 | PA01 — GPIO/EXTINT[1]/SERCOM1.1 |
| Pino 3 | PA02 — GPIO/AIN[0]/SERCOM4.0 |
| Pino 4 | PA03 — GPIO/AIN[1]/SERCOM4.1 |
| Pino 5 | VDDIO — Digital I/O supply voltage |
| Pino 6 | GND — Ground |
| Pino 7 | PA04 — GPIO/AIN[2]/SERCOM0.0 |
| Pino 8 | PA05 — GPIO/AIN[3]/SERCOM0.1 |
| Pino 9 | PA07 — GPIO/AIN[5]/SERCOM0.3 |
| Pino 10 | VDDIO — Digital I/O supply voltage |
| Pino 11 | GND — Ground |
| Pino 12 | PA08 — GPIO/SERCOM2.0/I2C-SDA |
| Pino 13 | PA09 — GPIO/SERCOM2.1/I2C-SCL |
| Pino 14 | PA10 — GPIO/SERCOM2.2 |
| Pino 15 | PA11 — GPIO/SERCOM2.3 |
| Pino 16 | PA12 — GPIO/SERCOM4.0 |
| Pino 17 | PA13 — GPIO/SERCOM4.1 |
| Pino 18 | PA14 — GPIO/SERCOM4.2 |
| Pino 19 | PA15 — GPIO/SERCOM4.3 |
| Pino 20 | PA16 — GPIO/SERCOM3.0/I2S-SD0 |
| Pino 21 | PA17 — GPIO/SERCOM3.1/I2S-MCK0 |
| Pino 22 | PA18 — GPIO/SERCOM3.2/I2S-FS0 |
| Pino 23 | PA19 — GPIO/SERCOM3.3/I2S-SCK0 |
| Pino 24 | VDDIO — Digital I/O supply voltage |
| Pino 25 | GND — Ground |
| Pino 26 | PA20 — GPIO/SERCOM5.2 |
| Pino 27 | PA21 — GPIO/SERCOM5.3 |
| Pino 28 | PA22 — GPIO/SERCOM3.0 |
| Pino 29 | PA23 — GPIO/SERCOM3.1 |
| Pino 30 | PA24 — GPIO/SERCOM5.2 |
| Pino 31 | PA25 — GPIO/SERCOM5.3 |
| Pino 32 | PA27 — GPIO |
| Pino 33 | PA28 — GPIO |
| Pino 34 | PA30 — GPIO/SERCOM1.2/CCL-IN2 |
| Pino 35 | PA31 — GPIO/SERCOM1.3/CCL-IN3 |
| Pino 36 | PB00 — GPIO |
| Pino 37 | PB01 — GPIO |
| Pino 38 | PB02 — GPIO/SERCOM5.0 |
| Pino 39 | PB03 — GPIO/SERCOM5.1 |
| Pino 40 | PB04 — GPIO/SERCOM5.2 |
| Pino 41 | PB05 — GPIO/SERCOM5.3 |
| Pino 42 | PB06 — GPIO/SERCOM4.2 |
| Pino 43 | PB07 — GPIO/SERCOM4.3 |
| Pino 44 | PB08 — GPIO/SERCOM4.0/I2S-SD1 |
| Pino 45 | PB09 — GPIO/SERCOM4.1/I2S-MCK1 |
| Pino 46 | PB10 — GPIO/SERCOM4.2/I2S-FS1 |
| Pino 47 | PB11 — GPIO/SERCOM4.3/I2S-SCK1 |
| Pino 48 | VDDIO — Digital I/O supply voltage |
| Pino 49 | GND — Ground |
| Pino 50 | PB12 — GPIO/SERCOM5.0 |
| Pino 51 | PB13 — GPIO/SERCOM5.1 |
| Pino 52 | PB14 — GPIO/SERCOM5.2 |
| Pino 53 | PB15 — GPIO/SERCOM5.3 |
| Pino 54 | PB16 — GPIO/SERCOM1.0/I2S-SD1 |
| Pino 55 | PB17 — GPIO/SERCOM1.1/I2S-MCK1 |
| Pino 56 | PB18 — GPIO/SERCOM1.2/I2S-FS1 |
| Pino 57 | PB19 — GPIO/SERCOM1.3/I2S-SCK1 |
| Pino 58 | PB20 — GPIO/SERCOM3.0 |
| Pino 59 | PB21 — GPIO/SERCOM3.1 |
| Pino 60 | PB22 — GPIO/SERCOM3.2 |
| Pino 61 | PB23 — GPIO/SERCOM3.3 |
| Pino 62 | PB24 — GPIO/SERCOM0.0 |
| Pino 63 | PB25 — GPIO/SERCOM0.1 |
| Pino 64 | PB26 — GPIO/SERCOM2.0/I2C-SDA |
| Pino 65 | PB27 — GPIO/SERCOM2.1/I2C-SCL |
| Pino 66 | PB28 — GPIO/SERCOM2.2 |
| Pino 67 | PB29 — GPIO/SERCOM2.3 |
| Pino 68 | PB30 — GPIO/SERCOM0.0 |
| Pino 69 | PB31 — GPIO/SERCOM0.1 |
| Pino 70 | PC00 — GPIO |
| Pino 71 | PC01 — GPIO |
| Pino 72 | PC02 — GPIO |
| Pino 73 | PC03 — GPIO |
| Pino 74 | VDDIO — Digital I/O supply voltage |
| Pino 75 | GND — Ground |
| Pino 76 | PC04 — GPIO |
| Pino 77 | PC05 — GPIO |
| Pino 78 | PC06 — GPIO |
| Pino 79 | PC07 — GPIO |
| Pino 80 | VDDIO — Digital I/O supply voltage |
| Pino 81 | GND — Ground |
| Pino 82 | PD00 — GPIO |
| Pino 83 | PD01 — GPIO |
| Pino 84 | PD08 — GPIO/XIN |
| Pino 85 | PD09 — GPIO/XOUT |
| Pino 86 | PD10 — GPIO |
| Pino 87 | PD11 — GPIO |
| Pino 88 | PD12 — GPIO |
| Pino 89 | VDDANA — Analog supply voltage |
| Pino 90 | GNDANA — Analog ground |
| Pino 91 | USB_DP — USB Full-Speed Data Plus |
| Pino 92 | USB_DM — USB Full-Speed Data Minus |
| Pino 93 | VDDUSB — USB transceiver supply (3.3V nominal) |
| Pino 94 | RESET_N — Active-low reset input |
| Pino 95 | SWDIO — Serial Wire Debug I/O |
| Pino 96 | SWCLK — Serial Wire Debug Clock |
| Pino 97 | VDDIN — Voltage regulator input |
| Pino 98 | GND — Ground |
| Pino 99 | VDDIO — Digital I/O supply voltage |
| Pino 100 | GND — Ground |
Aplicações típicas
ATSAMD51N19A-AFT é adequado para 6 aplicaçãos: 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
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAMD51N19A-AFT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- 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))
Notas de projeto
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.
Informações de conformidade
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).
