ATSAMD51N19A-AFT - 120MHz Cortex-M4F MCU 512KB Flash | Microchip
MPN: ATSAMD51N19A-AFT ✓ Hoạt độngATSAMD51N19A-AFT Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ATSAMD51N19A-AFT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAMD51N19A-AFT (cùng hình factor và footprint) — khác nhau ở ADC, Package, Core Architecture, DAC, Program Memory (Flash).
ATSAMD51J19A-AFT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATSAMD51J20A-AFT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAMD51N19A-AU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAME51N19A-AFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N19A-AFT Tỷ lệ tối đa & tính chất điện
| Series | SAM D51 |
| Core Processor | ARM Cortex-M4F |
| Core Size | 32-Bit Single-Core |
| Tần số xung maksimum | 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 |
| Hộp | 100-pin TQFP (14x14 mm) |
| Kiểu lắp đặt | Surface Mount |
| Điện áp cung cấp | 1.71 V to 3.6 V |
| Nhiệt độ hoạt động | -40C to +125C (extended) |
| Packaging | Tape & Reel (TR) |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATSAMD51N19A-AFT
| Chân 1 | PA00 — GPIO/EXTINT[0]/SERCOM1.0 |
| Chân 2 | PA01 — GPIO/EXTINT[1]/SERCOM1.1 |
| Chân 3 | PA02 — GPIO/AIN[0]/SERCOM4.0 |
| Chân 4 | PA03 — GPIO/AIN[1]/SERCOM4.1 |
| Chân 5 | VDDIO — Digital I/O supply voltage |
| Chân 6 | GND — Ground |
| Chân 7 | PA04 — GPIO/AIN[2]/SERCOM0.0 |
| Chân 8 | PA05 — GPIO/AIN[3]/SERCOM0.1 |
| Chân 9 | PA07 — GPIO/AIN[5]/SERCOM0.3 |
| Chân 10 | VDDIO — Digital I/O supply voltage |
| Chân 11 | GND — Ground |
| Chân 12 | PA08 — GPIO/SERCOM2.0/I2C-SDA |
| Chân 13 | PA09 — GPIO/SERCOM2.1/I2C-SCL |
| Chân 14 | PA10 — GPIO/SERCOM2.2 |
| Chân 15 | PA11 — GPIO/SERCOM2.3 |
| Chân 16 | PA12 — GPIO/SERCOM4.0 |
| Chân 17 | PA13 — GPIO/SERCOM4.1 |
| Chân 18 | PA14 — GPIO/SERCOM4.2 |
| Chân 19 | PA15 — GPIO/SERCOM4.3 |
| Chân 20 | PA16 — GPIO/SERCOM3.0/I2S-SD0 |
| Chân 21 | PA17 — GPIO/SERCOM3.1/I2S-MCK0 |
| Chân 22 | PA18 — GPIO/SERCOM3.2/I2S-FS0 |
| Chân 23 | PA19 — GPIO/SERCOM3.3/I2S-SCK0 |
| Chân 24 | VDDIO — Digital I/O supply voltage |
| Chân 25 | GND — Ground |
| Chân 26 | PA20 — GPIO/SERCOM5.2 |
| Chân 27 | PA21 — GPIO/SERCOM5.3 |
| Chân 28 | PA22 — GPIO/SERCOM3.0 |
| Chân 29 | PA23 — GPIO/SERCOM3.1 |
| Chân 30 | PA24 — GPIO/SERCOM5.2 |
| Chân 31 | PA25 — GPIO/SERCOM5.3 |
| Chân 32 | PA27 — GPIO |
| Chân 33 | PA28 — GPIO |
| Chân 34 | PA30 — GPIO/SERCOM1.2/CCL-IN2 |
| Chân 35 | PA31 — GPIO/SERCOM1.3/CCL-IN3 |
| Chân 36 | PB00 — GPIO |
| Chân 37 | PB01 — GPIO |
| Chân 38 | PB02 — GPIO/SERCOM5.0 |
| Chân 39 | PB03 — GPIO/SERCOM5.1 |
| Chân 40 | PB04 — GPIO/SERCOM5.2 |
| Chân 41 | PB05 — GPIO/SERCOM5.3 |
| Chân 42 | PB06 — GPIO/SERCOM4.2 |
| Chân 43 | PB07 — GPIO/SERCOM4.3 |
| Chân 44 | PB08 — GPIO/SERCOM4.0/I2S-SD1 |
| Chân 45 | PB09 — GPIO/SERCOM4.1/I2S-MCK1 |
| Chân 46 | PB10 — GPIO/SERCOM4.2/I2S-FS1 |
| Chân 47 | PB11 — GPIO/SERCOM4.3/I2S-SCK1 |
| Chân 48 | VDDIO — Digital I/O supply voltage |
| Chân 49 | GND — Ground |
| Chân 50 | PB12 — GPIO/SERCOM5.0 |
| Chân 51 | PB13 — GPIO/SERCOM5.1 |
| Chân 52 | PB14 — GPIO/SERCOM5.2 |
| Chân 53 | PB15 — GPIO/SERCOM5.3 |
| Chân 54 | PB16 — GPIO/SERCOM1.0/I2S-SD1 |
| Chân 55 | PB17 — GPIO/SERCOM1.1/I2S-MCK1 |
| Chân 56 | PB18 — GPIO/SERCOM1.2/I2S-FS1 |
| Chân 57 | PB19 — GPIO/SERCOM1.3/I2S-SCK1 |
| Chân 58 | PB20 — GPIO/SERCOM3.0 |
| Chân 59 | PB21 — GPIO/SERCOM3.1 |
| Chân 60 | PB22 — GPIO/SERCOM3.2 |
| Chân 61 | PB23 — GPIO/SERCOM3.3 |
| Chân 62 | PB24 — GPIO/SERCOM0.0 |
| Chân 63 | PB25 — GPIO/SERCOM0.1 |
| Chân 64 | PB26 — GPIO/SERCOM2.0/I2C-SDA |
| Chân 65 | PB27 — GPIO/SERCOM2.1/I2C-SCL |
| Chân 66 | PB28 — GPIO/SERCOM2.2 |
| Chân 67 | PB29 — GPIO/SERCOM2.3 |
| Chân 68 | PB30 — GPIO/SERCOM0.0 |
| Chân 69 | PB31 — GPIO/SERCOM0.1 |
| Chân 70 | PC00 — GPIO |
| Chân 71 | PC01 — GPIO |
| Chân 72 | PC02 — GPIO |
| Chân 73 | PC03 — GPIO |
| Chân 74 | VDDIO — Digital I/O supply voltage |
| Chân 75 | GND — Ground |
| Chân 76 | PC04 — GPIO |
| Chân 77 | PC05 — GPIO |
| Chân 78 | PC06 — GPIO |
| Chân 79 | PC07 — GPIO |
| Chân 80 | VDDIO — Digital I/O supply voltage |
| Chân 81 | GND — Ground |
| Chân 82 | PD00 — GPIO |
| Chân 83 | PD01 — GPIO |
| Chân 84 | PD08 — GPIO/XIN |
| Chân 85 | PD09 — GPIO/XOUT |
| Chân 86 | PD10 — GPIO |
| Chân 87 | PD11 — GPIO |
| Chân 88 | PD12 — GPIO |
| Chân 89 | VDDANA — Analog supply voltage |
| Chân 90 | GNDANA — Analog ground |
| Chân 91 | USB_DP — USB Full-Speed Data Plus |
| Chân 92 | USB_DM — USB Full-Speed Data Minus |
| Chân 93 | VDDUSB — USB transceiver supply (3.3V nominal) |
| Chân 94 | RESET_N — Active-low reset input |
| Chân 95 | SWDIO — Serial Wire Debug I/O |
| Chân 96 | SWCLK — Serial Wire Debug Clock |
| Chân 97 | VDDIN — Voltage regulator input |
| Chân 98 | GND — Ground |
| Chân 99 | VDDIO — Digital I/O supply voltage |
| Chân 100 | GND — Ground |
Ứng dụng tiêu biểu
ATSAMD51N19A-AFT phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAMD51N19A-AFT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Best price-per-Flash ratio in SAMD51 TQFP-100 family (vsATSAMD51J20A-AFT)
- Pin-compatible with Ethernet-enabled ATSAME51N19A-AFT (vsATSAME51N19A-AFT)
- Lower BOM cost than STM32F407 or NXP K66 equivalents (vsCross-brand Cortex-M4F MCU (e.g., STM32F407VGT6))
Ghi chú thiết kế
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.
Thông tin tuân thủ
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).
