ATSAMD51N20A-AUT-EFP - 120MHz Cortex-M4F MCU, 1MB Flash | Microchip
MPN: ATSAMD51N20A-AUT-EFP ✓ Hoạt độngATSAMD51N20A-AUT-EFP Tóm tắt
An MCU (Microcontroller Unit) is a single-chip computer integrating CPU core, program memory (Flash), data memory (SRAM), and peripheral interfaces on one die. Microcontrollers sit within the embedded computing hierarchy as: MCU -> embedded processor -> semiconductor device. The Cortex-M4F class specifically targets digital signal control with hardware floating point, allowing deterministic real-time performance with DSP extensions.
Key features of the ATSAMD51N20A-AUT-EFP include 120 MHz core clock with FPU, 1 MB dual-panel Flash with ECC, 256 KB SRAM with ECC, a 12-bit 1 MSPS ADC, two 12-bit DACs, and a high-speed USB 2.0 Full-Speed device/host port. The part supports -40C to +85C industrial temperature range (AUT suffix) and offers low-power Sleep/Standby modes with RTC retention. The "EFP" suffix denotes Extended Flash Performance tuning, and the "T" denotes Tape and Reel packaging.
Architecture-wise, the SAM D51 family uses a Harvard bus structure with separate code and data paths to the Flash and SRAM, allowing zero-wait-state execution at 120 MHz. The dual-panel Flash supports simultaneous read-while-write operations, enabling field firmware updates without halting application code. The Cortex-M4F DSP extensions and single-precision FPU accelerate control-loop math and signal processing.
Typical applications include industrial IoT gateways, USB audio interfaces, motor control (FOC), smart energy metering, and human-machine interface (HMI) panels. The combination of high-speed USB, large Flash, and DSP-capable core is well matched to audio processing, sensor fusion, and connected industrial nodes.
When designing, ensure the 32.768 kHz crystal placement follows the Microchip SAM D51 reference design to maintain USB jitter compliance. Decouple VDDIO and VDDCORE with bulk + 100 nF + 1 nF ceramic capacitors placed within 2 mm of the package pins.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found on the manufacturer summary page.
Bộ thay thế dễ dàng lắp đặt cho ATSAMD51N20A-AUT-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-AUT-EFP (cùng hình factor và footprint) — khác nhau ở ADC, DAC, Operating Temperature, USB, SRAM.
ATSAMD51N20A-AU-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N20A-AFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N20A-AUT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAMD51N19A-AUT-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N20A-AF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51N20A-AUT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAMD51N20A-AUT-EFP Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4F with FPU |
| Maximum Core Frequency | 120 MHz |
| Bit Width | 32-bit |
| Program Memory (Flash) | 1 MB (1M x 8) with ECC |
| SRAM | 256 KB with ECC |
| Hộp | 100-pin TQFP (14x14 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (AUT suffix) |
| USB Interface | USB 2.0 Full-Speed, Device and Host |
| ADC | 12-bit, 1 MSPS |
| DAC | 2 x 12-bit |
| Trạng thái RoHS | Compliant |
| Special Feature | EFP - Extended Flash Performance |
Hướng dẫn cấu hình chân ATSAMD51N20A-AUT-EFP 100-pin tqfp (14x14 mm)
Cấu hình chân cho ATSAMD51N20A-AUT-EFP (100-pin tqfp (14x14 mm) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho ATSAMD51N20A-AUT-EFP.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATSAMD51N20A-AUT-EFP phù hợp cho 6 Áp dụngs: Industrial IoT Gateway, USB Audio Interface, Motor Control (FOC and Trapezoidal), Smart Energy Metering, Human-Machine Interface (HMI) Panel, Wearable Sensor Hub.
Industrial IoT Gateway
The ATSAMD51N20A-AUT-EFP fits industrial IoT gateway applications because of its 120 MHz Cortex-M4F core with FPU that handles protocol conversion (Modbus, CAN, MQTT-SN), 1 MB dual-panel Flash supporting over-the-air (OTA) firmware updates with simultaneous read-while-write, and 256 KB SRAM buffering sensor telemetry streams. The high-speed USB 2.0 Full-Speed device/host port simplifies wired connectivity to upstream PLCs or downstream sensors, and SERCOM peripherals map to UART/SPI/I2C for sensor and modem links. Its -40C to +85C industrial temperature range (AUT) tolerates factory-floor ambient conditions. Power-conscious designs leverage the Sleep and Standby modes with RTC retention to reduce gateway current to under 10 uA between telemetry bursts.
Được đề xuất
USB Audio Interface
The ATSAMD51N20A-AUT-EFP is well suited for USB audio interface applications because its Cortex-M4F DSP extensions and single-precision FPU deliver real-time audio DSP (EQ, dynamics, mixing) without taxing the core. The integrated USB 2.0 Full-Speed device interface streams 48 kHz / 16-bit stereo audio with low jitter, while dual 12-bit DACs and the I2S peripheral connect to external audio CODECs for higher fidelity playback. The 1 MB dual-panel Flash supports USB host stack plus audio firmware with headroom for upgrade. According to Microchip SAM D51 reference designs, the part can also act as USB host to read audio files from mass-storage devices, enabling stand-alone player products.
Được đề xuất
Motor Control (FOC and Trapezoidal)
The ATSAMD51N20A-AUT-EFP handles three-phase brushless DC motor control with Field-Oriented Control (FOC) because its Cortex-M4F DSP extensions and hardware FPU accelerate Park/Clarke transforms, PI loops, and SVM calculation within a typical 10 kHz control period. The 12-bit 1 MSPS ADC samples phase currents with synchronized PWM from the TCC timer peripherals, providing deterministic control timing. The 1 MB Flash stores application code, motor parameter tables, and fault handlers, while 256 KB SRAM holds control variables. The -40C to +85C operating range and on-chip analog comparator support robust industrial motor drives up to several kW.
Được đề xuất
Smart Energy Metering
The ATSAMD51N20A-AUT-EFP supports smart energy metering applications because its 12-bit 1 MSPS ADC with up to 16 analog channels captures voltage and current waveforms from the mains side, and the Cortex-M4F DSP extensions compute real-time RMS, harmonic distortion (THD), and reactive power algorithms. The 1 MB dual-panel Flash with ECC supports calibrated metrology firmware plus communication stack (DLMS/COSEM, M-Bus) with secure OTA updates enabled by read-while-write. Hardware cryptographic accelerators and True Random Number Generator (TRNG) enable tamper-resistant designs. The -40C to +85C temperature range ensures accurate measurement across outdoor meter enclosures in varied climates.
Được đề xuất
Human-Machine Interface (HMI) Panel
The ATSAMD51N20A-AUT-EFP drives HMI panel applications because its 120 MHz core with FPU renders graphics and updates TFT-LCD panels smoothly via the integrated parallel display interface, while the QSPI peripheral fetches assets from external Flash at high speed. The dual 12-bit DACs generate audio feedback and reference voltages for touch sensing, and 8 SERCOM channels support UART to PLCs, SPI to displays, and I2C to capacitive touch controllers. The 1 MB Flash hosts LVGL/MODBUS UI stacks, while the 256 KB SRAM supports frame buffers. The -40C to +85C range and EMC-resilient peripherals suit industrial cabinet environments.
Được đề xuất
Wearable Sensor Hub
The ATSAMD51N20A-AUT-EFP fits wearable sensor hub applications because the Cortex-M4F with FPU runs sensor fusion (IMU, magnetometer, barometer) and on-device machine learning inference (e.g., gesture recognition) with sub-10 ms latency, while Sleep and Standby modes with RTC retention bring idle current to single-digit uA. The 1 MB dual-panel Flash stores inference models and BLE stack, and 256 KB SRAM holds ring buffers for motion data. The integrated USB enables charging and firmware update over a single connector, simplifying mechanical design. The compact 100-pin TQFP fits wrist-worn enclosures; for tighter spaces the ATSAMD51J series offers smaller package footprints at reduced I/O.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAMD51N20A-AUT-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-EFP | ATSAMD51N20A-AFT | ATSAMD51N20A-AUT | ATSAMD51N19A-AUT-EFP | ATSAMD51N20A-AF | ATSAME51N20A-AUT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (14x14) | 100-pin TQFP (14x14) - same | 100-pin TQFP (14x14) - same | 100-pin TQFP (14x14) - same | 100-pin TQFP (14x14) - same | 100-pin TQFP (14x14) - same | 100-pin TQFP (14x14) - same |
| Core | 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 | 1 MB | 1 MB | 1 MB | 1 MB | 768 KB (-25%) | 1 MB | 1 MB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| USB | FS Device + Host | FS Device + Host | FS Device + Host | FS Device + Host | FS Device + Host | FS Device + Host | No USB |
| EFP Feature | Yes | Yes | No (AFT suffix) | No | Yes | No (AF suffix) | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Extended Flash Performance tuning for 120 MHz zero-wait-state (vsATSAMD51N20A-AUT)
- 1 MB Flash vs 768 KB on pin-compatible N19A variant (vsATSAMD51N19A-AUT-EFP)
- Integrated USB 2.0 FS device/host not present on E51 (vsATSAME51N20A-AUT)
Ghi chú thiết kế
The ATSAMD51N20A-AUT-EFP integrates a 1.2V internal core LDO fed from the VDDCORE pin. Recommended: place a 1 uF X7R ceramic capacitor within 2 mm of the VDDCORE pin, plus a 100 nF in parallel. For VDDBU (RTC supply), connect to VDDIO if battery backup is not used, or to a coin cell through a Schottky diode for RTC retention in Sleep modes.
Follow Microchip SAM D51 reference design for USB layout: route D+/D- as a 90-ohm differential pair with continuous ground reference, length-matched within 150 mil. Place the 48 MHz crystal within 5 mm of XIN/XOUT pins with guard traces around the oscillator area to reduce EMI coupling. Add a ferrite bead on VBUS to suppress conducted emissions.
Estimated: at 120 MHz active mode with all peripherals enabled, the SAM D51 typically dissipates approximately 60-90 mW. The 100-pin TQFP-14x14 mm has theta_JA around 45 C/W, so junction rise is roughly 4C above ambient at typical load - well within the 85C industrial limit. If peripheral activity is heavy (USB, ADC continuous), add thermal copper pour beneath the exposed pad region.
Do not skip the NVMCTRL row-write lock bits configuration in firmware; leaving defaults can prevent dual-panel Flash read-while-write operation. Ensure BOOTPROT fuse is set appropriately for secure bootloader designs. The EFP (Extended Flash Performance) suffix parts require the latest ASF/MPLAB Harmony core files for correct wait-state configuration at 120 MHz - older ASF may underperform.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page; AUT suffix denotes industrial -40C to +85C operating range. Not AEC-Q100 qualified; for AEC-Q100 automotive use, refer to Microchip's automotive-grade SAM products.
