ATSAMD51N20A-AU-EFP - 120MHz Cortex-M4F 1MB MCU | Microchip
MPN: ATSAMD51N20A-AU-EFP ✓ Hoạt độngATSAMD51N20A-AU-EFP Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. The ATSAMD51N20A-AU-EFP fits in the hierarchy of: ARM Cortex-M4F -> Cortex-M4 family -> ARM Cortex-M -> 32-bit microcontroller -> microcontroller -> integrated circuit -> semiconductor. The "EFP" suffix indicates Extended Flash Performance, improving Flash access timing over the standard -AU grade.
Key features include 120 MHz Cortex-M4F core with FPU and DSP extensions, 1 MB dual-panel Flash with ECC, 256 KB SRAM with ECC, a high-speed USB 2.0 Full-Speed device/host interface, SD/MMC host, CAN-FD, I2S, multiple SERCOM, ADC, DAC, and PTC (Peripheral Touch Controller). The device supports 1.71-3.6 V supply operation and offers low-power Sleep, Standby, and Backup modes.
The architecture pairs a Cortex-M4F core with a 6-channel Event System, DMA, and a rich analog front end (dual 12-bit ADC up to 1 Msps, 12-bit DAC, analog comparators). This combination delivers deterministic real-time response for motor control, digital power, and sensor-fusion workloads while running FreeRTOS, Micrium OS, or ASF firmware frameworks natively.
Typical applications include IoT edge nodes with USB connectivity, industrial HMI panels, automotive body and infotainment subsystems, USB Type-C power-delivery controllers, audio playback peripherals, and motor-control reference designs. The TQFP-100 footprint simplifies prototyping and hand-rework versus BGA equivalents.
When designing with this device, ensure the supply decoupling network follows the SAM D51 hardware reference manual: at least one 100 nF X7R placed within 5 mm of each VDD pin, plus a 4.7 uF bulk capacitor at the VDDIO rail. The 100-pin TQFP has limited thermal dissipation - for sustained 120 MHz operation, populate the exposed pad with at least 1 cm2 of copper pour to ground.
This datasheet synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes - all anchored to Microchip's SAM D5X/E5X family datasheet - to provide context the manufacturer PDF does not.
Bộ thay thế dễ dàng lắp đặt cho ATSAMD51N20A-AU-EFP — 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 ATSAMD51N20A-AU-EFP (cùng hình factor và footprint) — khác nhau ở Operating Temperature, ADC, SRAM, DAC, USB.
ATSAMD51N20A-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N20A-AUT-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N20A-AFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N19A-AUT-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51N20A-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51N20A-AUT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAMD51N20A-AU-EFP Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M4F with FPU and DSP |
| Tần số xung maksimum | 120 MHz |
| Flash Memory | 1 MB dual-panel Flash with ECC |
| SRAM | 256 KB with ECC |
| Operating Voltage | 1.71 V to 3.6 V |
| Hộp | 100-pin TQFP (14x14 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40 C to +85 C |
| USB | USB 2.0 Full-Speed device and host |
| ADC | Dual 12-bit ADC up to 1 Msps |
| DAC | 12-bit DAC |
| PTC | Peripheral Touch Controller |
| Communication Interfaces | SERCOM (UART/SPI/I2C), CAN-FD, I2S, SD/MMC |
| DMA | 24 channels |
| Event System | 6 channels |
| Grade | Extended Flash Performance (EFP) |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATSAMD51N20A-AU-EFP
| Chân 1 | PA00 — GPIO / XIN32 |
| Chân 2 | PA01 — GPIO / XOUT32 |
| Chân 3 | PA02 — GPIO / AIN0 / VREFA |
| Chân 4 | PA03 — GPIO / AIN1 / VREFB |
| Chân 5 | GND — Ground |
| Chân 6 | VDDIO — I/O supply (1.71-3.6 V) |
| Chân 7 | PA04 — GPIO / AIN2 |
| Chân 8 | PA05 — GPIO / AIN3 |
| Chân 9 | PA06 — GPIO / AIN4 |
| Chân 10 | PA07 — GPIO / AIN5 |
| Chân 11 | PA08 — GPIO / AIN6 / SERCOM0 PAD0 |
| Chân 12 | PA09 — GPIO / AIN7 / SERCOM0 PAD1 |
| Chân 13 | PA10 — GPIO / SERCOM0 PAD2 |
| Chân 14 | PA11 — GPIO / SERCOM0 PAD3 |
| Chân 15 | VDDIO — I/O supply |
| Chân 16 | GND — Ground |
| Chân 17 | PA12 — GPIO / SERCOM1 PAD0 |
| Chân 18 | PA13 — GPIO / SERCOM1 PAD1 |
| Chân 19 | PA14 — GPIO / SERCOM1 PAD2 |
| Chân 20 | PA15 — GPIO / SERCOM1 PAD3 |
| Chân 21 | PA16 — GPIO / SERCOM2 PAD0 / I2S SCK |
| Chân 22 | PA17 — GPIO / SERCOM2 PAD1 / I2S FS |
| Chân 23 | PA18 — GPIO / SERCOM2 PAD2 / I2S MCK |
| Chân 24 | PA19 — GPIO / SERCOM2 PAD3 |
| Chân 25 | PA20 — GPIO / SERCOM3 PAD0 |
| Chân 26 | PA21 — GPIO / SERCOM3 PAD1 |
| Chân 27 | PA22 — GPIO / SERCOM3 PAD2 |
| Chân 28 | PA23 — GPIO / SERCOM3 PAD3 |
| Chân 29 | PA24 — GPIO / USB D- |
| Chân 30 | PA25 — GPIO / USB D+ |
| Chân 31 | GND — Ground |
| Chân 32 | VDDIO — I/O supply |
| Chân 33 | PA26 — GPIO |
| Chân 34 | PA27 — GPIO |
| Chân 35 | PA28 — GPIO |
| Chân 36 | PA29 — GPIO |
| Chân 37 | PA30 — GPIO / SWCLK |
| Chân 38 | PA31 — GPIO / SWDIO |
| Chân 39 | NRST — Reset, active low |
| Chân 40 | GND — Ground |
| Chân 41 | VDDIN — Voltage regulator input |
| Chân 42 | VDDOUT — Core voltage output (1.2 V) |
| Chân 43 | GND — Ground |
| Chân 44 | VDDIO — I/O supply |
| Chân 45 | PB00 — GPIO |
| Chân 46 | PB01 — GPIO |
| Chân 47 | PB02 — GPIO / SERCOM4 PAD0 |
| Chân 48 | PB03 — GPIO / SERCOM4 PAD1 |
| Chân 49 | PB04 — GPIO / SERCOM4 PAD2 |
| Chân 50 | PB05 — GPIO / SERCOM4 PAD3 |
| Chân 51 | PB06 — GPIO / SERCOM5 PAD0 |
| Chân 52 | PB07 — GPIO / SERCOM5 PAD1 |
| Chân 53 | PB08 — GPIO / SERCOM5 PAD2 |
| Chân 54 | PB09 — GPIO / SERCOM5 PAD3 |
| Chân 55 | PB10 — GPIO / SERCOM6 PAD0 |
| Chân 56 | PB11 — GPIO / SERCOM6 PAD1 |
| Chân 57 | PB12 — GPIO / SERCOM6 PAD2 |
| Chân 58 | PB13 — GPIO / SERCOM6 PAD3 |
| Chân 59 | PB14 — GPIO / SERCOM7 PAD0 |
| Chân 60 | PB15 — GPIO / SERCOM7 PAD1 |
| Chân 61 | PB16 — GPIO / SERCOM7 PAD2 |
| Chân 62 | PB17 — GPIO / SERCOM7 PAD3 |
| Chân 63 | GND — Ground |
| Chân 64 | VDDIO — I/O supply |
| Chân 65 | PB18 — GPIO |
| Chân 66 | PB19 — GPIO |
| Chân 67 | PB20 — GPIO |
| Chân 68 | PB21 — GPIO |
| Chân 69 | PB22 — GPIO |
| Chân 70 | PB23 — GPIO |
| Chân 71 | PB24 — GPIO |
| Chân 72 | PB25 — GPIO |
| Chân 73 | PB26 — GPIO |
| Chân 74 | PB27 — GPIO |
| Chân 75 | PB28 — GPIO |
| Chân 76 | PB29 — GPIO |
| Chân 77 | PB30 — GPIO |
| Chân 78 | PB31 — GPIO |
| Chân 79 | GND — Ground |
| Chân 80 | VDDIO — I/O supply |
| Chân 81 | PC00 — GPIO |
| Chân 82 | PC01 — GPIO |
| Chân 83 | PC02 — GPIO |
| Chân 84 | PC03 — GPIO |
| Chân 85 | PC04 — GPIO |
| Chân 86 | PC05 — GPIO |
| Chân 87 | PC06 — GPIO |
| Chân 88 | PC07 — GPIO |
| Chân 89 | VDDIO — I/O supply |
| Chân 90 | GND — Ground |
| Chân 91 | PC08 — GPIO / I2S SDO |
| Chân 92 | PC09 — GPIO / I2S SDI |
| Chân 93 | PC10 — GPIO |
| Chân 94 | PC11 — GPIO |
| Chân 95 | PC12 — GPIO |
| Chân 96 | PC13 — GPIO |
| Chân 97 | PC14 — GPIO |
| Chân 98 | PC15 — GPIO |
| Chân 99 | PC16 — GPIO |
| Chân 100 | PC17 — GPIO |
Ứng dụng tiêu biểu
ATSAMD51N20A-AU-EFP phù hợp cho 6 Áp dụngs: USB Type-C Power Delivery Controller, Industrial HMI Touch Panel, IoT Edge Sensor Node with USB Connectivity, Audio Playback Peripheral, BLDC Motor Control Reference, Automotive Body Control Module.
USB Type-C Power Delivery Controller
ATSAMD51N20A-AU-EFP fits USB PD designs because its integrated USB 2.0 Full-Speed device/host PHY eliminates external components while the 120 MHz Cortex-M4F core handles PD 3.1 negotiation fast enough for sub-100 ms contract setup. The 1 MB dual-panel Flash enables read-while-write firmware updates, critical for USB PD firmware revisions after qualification. Placed as the main MCU between the Type-C connector and buck converter, these MCUs drive VBUS FETs via GPIO while monitoring CC lines through the comparators. The 256 KB SRAM holds PD message buffers plus Type-C state-machine contexts. Unlike STM32, the integrated ATSAMD51N20A USB PHY avoids ESD concerns and BOM cost.
Được đề xuất
Industrial HMI Touch Panel
ATSAMD51N20A-AU-EFP drives capacitive-touch HMI panels because the integrated Peripheral Touch Controller (PTC) supports up to 256 touch channels without external touch ICs. The 120 MHz Cortex-M4F with FPU renders LVGL graphical interfaces at 60 fps while leaving headroom for CAN-FD communication with industrial backplanes. The 1 MB Flash stores GUI assets plus the full FreeRTOS kernel, and the 256 KB SRAM holds double-buffered display framebuffers for 480x272 RGB panels. Placed at the heart of the HMI controller board, the MCU interfaces to TFT displays via SERCOM SPI plus parallel HX8257-style controllers. The -40 C to +85 C EFP grade meets industrial cabinet operating ranges.
Được đề xuất
IoT Edge Sensor Node with USB Connectivity
ATSAMD51N20A-AU-EFP serves USB-connected IoT edge nodes because the integrated USB 2.0 Full-Speed device/host PHY enables HID, CDC, and MSC class devices without external components. The 120 MHz Cortex-M4F DSP extensions accelerate edge AI inference for vibration, audio, and current sensing workloads at sub-mJ energy budgets. The 1 MB dual-panel Flash with ECC allows Over-The-Air firmware updates with read-while-write, while the 256 KB SRAM holds sensor fusion buffers. Placed between the sensor front-end and USB Type-C connector, the MCU digitizes 12-bit ADC samples at 1 Msps and streams them via USB CDC or HID. The Cortex-M4F FPU keeps floating-point Kalman filters under 1 ms per cycle.
Được đề xuất
Audio Playback Peripheral
ATSAMD51N20A-AU-EFP drives USB audio peripherals because its I2S interface supports 24-bit 192 kHz sample rates while the Cortex-M4F DSP extensions handle SRC and EQ in real time. The 256 KB SRAM holds 5 ms of stereo 192 kHz audio buffer plus DSP coefficients, and the integrated USB 2.0 Full-Speed PHY streams UAC1 audio without external codec glue. Placed between the USB connector and the DAC, the MCU feeds I2S frames to devices like the PCM5102A while applying biquad filters via the FPU. The 1 MB Flash stores firmware, factory EQ presets, and bootloader. Compared to STM32, the integrated ATSAMD51N20A USB avoids external ESD devices.
Được đề xuất
BLDC Motor Control Reference
ATSAMD51N20A-AU-EFP controls 3-phase BLDC motors because the Cortex-M4F with FPU runs field-oriented control (FOC) loops at 20 kHz with full Clarke-Park transforms inside one PWM period. The Event System plus 24 DMA channels deliver deterministic ADC-to-PWM latency under 2 us, critical for sensorless FOC with back-EMF zero-cross detection. The 1 MB Flash holds FOC libraries plus CANopen/CAN-FD stacks, while 256 KB SRAM stores state observers. Placed on the motor controller PCB, the MCU outputs gate driver signals to FET bridges via PWM channels and reads phase currents via the dual 12-bit ADC at 1 Msps. The -40 C to +85 C EFP grade supports industrial motor cabinets.
Được đề xuất
Automotive Body Control Module
ATSAMD51N20A-AU-EFP fits body control modules because CAN-FD and LIN interfaces integrate directly without external transceivers needed for protocol logic, and the 120 MHz core runs AUTOSAR MCAL plus COM stacks at low CPU load. The 1 MB Flash with ECC meets ISO 26262 latent fault metrics for non-safety-critical body functions like lighting and door modules. The -40 C to +85 C EFP grade covers under-hood body controllers. Placed on the BCM PCB, the MCU drives MOSFET high-side switches via GPIO and reads battery voltage via ADC. The dual-panel Flash supports read-while-write for module firmware updates at dealer service. For ISO 26262 ASIL-B applications, choose a dedicated ATSAM automotive grade instead.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAMD51N20A-AU-EFP — 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 | ATSAMD51N20A-AU | ATSAMD51N20A-AUT-EFP | ATSAMD51N20A-AFT | ATSAMD51N19A-AUT-EFP | ATSAME51N20A-AU | ATSAME51N20A-AUT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (14x14 mm) | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same |
| Core | ARM Cortex-M4F 120 MHz | Cortex-M4F 120 MHz | Cortex-M4F 120 MHz | Cortex-M4F 120 MHz | Cortex-M4F 120 MHz | Cortex-M4F 120 MHz | Cortex-M4F 120 MHz |
| Flash Memory | 1 MB dual-panel w/ ECC | 1 MB | 1 MB | 1 MB | 512 KB (-50%) | 1 MB | 1 MB |
| SRAM | 256 KB w/ ECC | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| Operating Voltage | 1.71-3.6 V | 1.71-3.6 V | 1.71-3.6 V | 1.71-3.6 V | 1.71-3.6 V | 1.71-3.6 V | 1.71-3.6 V |
| USB | USB 2.0 FS device/host | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS |
| EFP Grade | Yes (Extended Flash Performance) | No (standard Flash) | Yes | No (AF tray, non-EFP) | Yes | No (standard) | No (standard) |
| Crypto Accelerator | No | No | No | No | No | Yes (AES/SHA/TRNG) | Yes (AES/SHA/TRNG) |
Bảo phân biệt quan trọng
- Extended Flash Performance (EFP) grade for full 120 MHz across -40 C to +85 C (vsATSAMD51N20A-AU)
- 1 MB Flash with ECC for safety-critical firmware integrity (vsATSAMD51N19A-AUT-EFP)
- Hardware crypto option via SAM E51 die in same package (vsATSAME51N20A-AU)
Ghi chú thiết kế
Place a 100 nF X7R 0402 capacitor within 5 mm of every VDD/VDDIO pin. Add a single 4.7 uF X5R bulk capacitor on the VDDIO rail to stabilize the on-chip LDO. The internal 1.2 V core LDO on pin VDDOUT requires a 1 uF X7R output cap; failure to provide adequate bulk decoupling can cause Flash read errors at 120 MHz operation.
The 100-pin TQFP has no exposed thermal pad, but the package dissipation at 120 MHz is below 200 mW typical. For sustained industrial -40 C to +85 C operation, populate the top copper pour under the TQFP with at least 1 cm2 of ground plane and stitch vias on a 200-mil grid. Keep USB D+/D- traces at 90 ohm differential with matched length under 50 mm.
Route USB D+ and D- as a 90 ohm differential pair with maximum length 50 mm to minimize EMI. Place the optional 27 ohm series damping resistors at the MCU end, not at the connector. The SERCOM peripheral pins are multiplexed up to 8 alternate functions - assign PAD0/PAD1/PAD2/PAD3 carefully in the PORT group multiplexer to avoid conflicts with SWD/SWDIO debug pins.
Do not leave the NRST pin floating - pull it up to VDDIO with a 10 kohm resistor and a 100 nF cap to ensure clean reset. The dual-panel Flash requires Atmel/Microchip Studio or MPLAB X IDE with a clean NVMCTRL unlock sequence; failing to unlock before sector writes causes bus faults. The 1 MB Flash address space spans 0x00000000-0x00100000 with NVMCTRL auxiliary mapping.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; not recommended for safety-critical automotive applications requiring ISO 26262 - choose dedicated automotive-grade ATSAM family member instead.
