ATSAMD51P20A-AUT-EFP - 120MHz Cortex-M4F MCU 1MB Flash TQFP-128
MPN: ATSAMD51P20A-AUT-EFP ✓ Hoạt độngATSAMD51P20A-AUT-EFP Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a processor core, program memory, data memory, and integrated peripherals. The SAM D51 line sits within the broader hierarchy of 32-bit ARM Cortex-M microcontrollers, which in turn belong to the wider category of embedded microcontrollers and SoCs (systems on chip). The Cortex-M4F core adds single-precision floating-point and DSP extensions, distinguishing it from Cortex-M0/M0+/M3 cores. Combined with up to 1 MB flash and 256 KB SRAM, the SAMD51 family is positioned for mid-to-high-end IoT, motor control, and human-machine interface (HMI) designs that exceed the capability of Cortex-M0+ parts such as the SAMD21 family.
Key features of the ATSAMD51P20A include 120 MHz CPU clock, 1 MB dual-panel Flash with ECC for safety, 256 KB SRAM with ECC, a high-speed USB 2.0 Full-Speed interface, a 12-bit 1 Msps ADC (up to 32 channels), a 12-bit 1 Msps DAC, multiple SERCOM (configurable serial) channels, and advanced timer/counter peripherals with dead-time generation. The integrated FPU accelerates floating-point math, and the Event System and DMA engine provide low-latency peripheral-to-peripheral and memory transfers.
The ATSAMD51P20A's architecture combines an M4F core with tightly-coupled SRAM, a multi-layer bus matrix (HSB/AHB/APB), and a Peripheral Event System that lets peripherals trigger one another without CPU intervention. The dual-panel Flash with ECC supports read-while-write (RWW) operation, allowing firmware updates without stopping code execution, while hardware ECC protects against bit flips in automotive and industrial environments.
Typical applications for the ATSAMD51P20A-AUT-EFP include industrial control (PLC I/O modules, sensor hubs, HMI displays), USB peripherals (Human Interface Devices, CDC serial bridges, audio devices), IoT edge nodes, drone flight controllers, and audio processing where the FPU and DSP instructions accelerate FFT and filter workloads. The 128-TQFP footprint makes it ideal for prototype boards that need maximum GPIO count.
When designing with this part, pay close attention to decoupling: place 100 nF X7R capacitors on every VDD/VDDIO pin pair and a 4.7 uF tantalum or ceramic bulk cap at the regulator output. The DM/DP USB lines require 90 ohm differential impedance and a 1 M ohm pull-down on D+ to keep the device disconnected during reset. JTAG or SWD (20 pins) plus the standard 38-pin ARM Cortex-M Debug Connector keep development simple.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including extended-temperature and EFP-flash variants within the SAM D51 family for engineers who need pin-compatible scaling across memory sizes.
Bộ thay thế dễ dàng lắp đặt cho ATSAMD51P20A-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 ATSAMD51P20A-AUT-EFP (cùng hình factor và footprint) — khác nhau ở Package, ADC, DAC, Operating Temperature, SRAM.
ATSAMD51P20A-AUT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51P19A-CTUT-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51N20A-AUT-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME54P20A-AU-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51J20A-MFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51P20A-AUT-EFP Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M4F with FPU and DSP |
| Maximum CPU Frequency | 120 MHz |
| Program Flash | 1 MB dual-panel with ECC |
| SRAM | 256 KB with ECC |
| Hộp | 128-pin TQFP (14x14 mm) |
| Supply Voltage (VDD) | 1.71 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40C to +85C (industrial) |
| USB Interface | USB 2.0 Full-Speed Device/Host |
| ADC | 12-bit, up to 1 Msps, up to 32 channels |
| DAC | 12-bit, up to 1 Msps, 2 channels |
| SERCOM Channels | 8 configurable (UART/SPI/I2C) |
| Timers/Counters | TC x8, TCC x5 |
| DMA Channels | 32 (linked list) |
| Operating Mode Variants | AUT = industrial, tape-and-reel, EFP = Extended Flash Performance |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATSAMD51P20A-AUT-EFP
| Chân 1 | VDD — Digital supply voltage |
| Chân 2 | GND — Ground |
| Chân 3 | PA00 — PORT pin, SERCOM alternative |
| Chân 4 | PA01 — PORT pin, XIN (crystal) |
| Chân 5 | PA02 — PORT pin, XOUT (crystal) |
| Chân 6 | PA03 — PORT pin, ADC AIN[1] |
| Chân 7 | PA04 — PORT pin, ADC AIN[2] |
| Chân 8 | PA05 — PORT pin, ADC AIN[3] |
| Chân 9 | PA06 — PORT pin, ADC AIN[4] |
| Chân 10 | PA07 — PORT pin, ADC AIN[5] |
| Chân 11 | PA08 — PORT pin, SERCOM alt |
| Chân 12 | PA09 — PORT pin, SERCOM alt |
| Chân 13 | PA10 — PORT pin, SERCOM alt |
| Chân 14 | PA11 — PORT pin, SERCOM alt |
| Chân 15 | VDDIO — IO supply voltage |
| Chân 16 | GND — Ground |
| Chân 17 | PA12 — PORT pin, SERCOM alt |
| Chân 18 | PA13 — PORT pin, SERCOM alt |
| Chân 19 | PA14 — PORT pin, SERCOM alt |
| Chân 20 | PA15 — PORT pin, SERCOM alt |
| Chân 21 | PA16 — PORT pin, SERCOM alt |
| Chân 22 | PA17 — PORT pin, SERCOM alt |
| Chân 23 | PA18 — PORT pin, SERCOM alt |
| Chân 24 | PA19 — PORT pin, SERCOM alt |
| Chân 25 | PA20 — PORT pin, SERCOM alt |
| Chân 26 | PA21 — PORT pin, SERCOM alt |
| Chân 27 | PA22 — PORT pin, SERCOM alt |
| Chân 28 | PA23 — PORT pin, SERCOM alt |
| Chân 29 | PA24 — PORT pin, USB D- |
| Chân 30 | PA25 — PORT pin, USB D+ |
| Chân 31 | GND — Ground |
| Chân 32 | VDD — Digital supply voltage |
| Chân 33 | PB00 — PORT pin, SERCOM alt |
| Chân 34 | PB01 — PORT pin, SERCOM alt |
| Chân 35 | PB02 — PORT pin, SERCOM alt, ADC AIN[6] |
| Chân 36 | PB03 — PORT pin, SERCOM alt, ADC AIN[7] |
| Chân 37 | PB04 — PORT pin, SERCOM alt, ADC AIN[8] |
| Chân 38 | PB05 — PORT pin, SERCOM alt, ADC AIN[9] |
| Chân 39 | PB06 — PORT pin, SERCOM alt, ADC AIN[10] |
| Chân 40 | PB07 — PORT pin, SERCOM alt, ADC AIN[11] |
| Chân 41 | PB08 — PORT pin, SERCOM alt, ADC AIN[12] |
| Chân 42 | PB09 — PORT pin, SERCOM alt, ADC AIN[13] |
| Chân 43 | PB10 — PORT pin, SERCOM alt, ADC AIN[14] |
| Chân 44 | PB11 — PORT pin, SERCOM alt, ADC AIN[15] |
| Chân 45 | VDDIO — IO supply voltage |
| Chân 46 | GND — Ground |
| Chân 47 | PB12 — PORT pin, SERCOM alt |
| Chân 48 | PB13 — PORT pin, SERCOM alt |
| Chân 49 | PB14 — PORT pin, SERCOM alt |
| Chân 50 | PB15 — PORT pin, SERCOM alt |
| Chân 51 | PB16 — PORT pin, SERCOM alt |
| Chân 52 | PB17 — PORT pin, SERCOM alt |
| Chân 53 | PB18 — PORT pin, SERCOM alt |
| Chân 54 | PB19 — PORT pin, SERCOM alt |
| Chân 55 | PB20 — PORT pin, SERCOM alt |
| Chân 56 | PB21 — PORT pin, SERCOM alt |
| Chân 57 | PB22 — PORT pin, SERCOM alt |
| Chân 58 | PB23 — PORT pin, SERCOM alt |
| Chân 59 | PB24 — PORT pin, SERCOM alt |
| Chân 60 | PB25 — PORT pin, SERCOM alt |
| Chân 61 | PB26 — PORT pin, SERCOM alt |
| Chân 62 | PB27 — PORT pin, SERCOM alt |
| Chân 63 | PB28 — PORT pin, SERCOM alt |
| Chân 64 | PB29 — PORT pin, SERCOM alt |
| Chân 65 | PC00 — PORT pin, SERCOM alt |
| Chân 66 | PC01 — PORT pin, SERCOM alt |
| Chân 67 | PC02 — PORT pin, SERCOM alt |
| Chân 68 | PC03 — PORT pin, SERCOM alt |
| Chân 69 | PC04 — PORT pin, SERCOM alt |
| Chân 70 | PC05 — PORT pin, SERCOM alt |
| Chân 71 | PC06 — PORT pin, SERCOM alt |
| Chân 72 | PC07 — PORT pin, SERCOM alt |
| Chân 73 | VDDIO — IO supply voltage |
| Chân 74 | GND — Ground |
| Chân 75 | PC08 — PORT pin, SERCOM alt |
| Chân 76 | PC09 — PORT pin, SERCOM alt |
| Chân 77 | PC10 — PORT pin, SERCOM alt |
| Chân 78 | PC11 — PORT pin, SERCOM alt |
| Chân 79 | PC12 — PORT pin, SERCOM alt |
| Chân 80 | PC13 — PORT pin, SERCOM alt |
| Chân 81 | PC14 — PORT pin, SERCOM alt |
| Chân 82 | PC15 — PORT pin, SERCOM alt |
| Chân 83 | PC16 — PORT pin, SERCOM alt |
| Chân 84 | PC17 — PORT pin, SERCOM alt |
| Chân 85 | PC18 — PORT pin, SERCOM alt |
| Chân 86 | PC19 — PORT pin, SERCOM alt |
| Chân 87 | PC20 — PORT pin, SERCOM alt |
| Chân 88 | PC21 — PORT pin, SERCOM alt |
| Chân 89 | PC22 — PORT pin, SERCOM alt |
| Chân 90 | PC23 — PORT pin, SERCOM alt |
| Chân 91 | PC24 — PORT pin, SERCOM alt |
| Chân 92 | PC25 — PORT pin, SERCOM alt |
| Chân 93 | PC26 — PORT pin, SERCOM alt |
| Chân 94 | PC27 — PORT pin, SERCOM alt |
| Chân 95 | PC28 — PORT pin, SERCOM alt |
| Chân 96 | PC29 — PORT pin, SERCOM alt |
| Chân 97 | PD00 — PORT pin, SERCOM alt |
| Chân 98 | PD01 — PORT pin, SERCOM alt |
| Chân 99 | PD02 — PORT pin, SERCOM alt |
| Chân 100 | PD03 — PORT pin, SERCOM alt |
| Chân 101 | PD04 — PORT pin, SERCOM alt |
| Chân 102 | PD05 — PORT pin, SERCOM alt |
| Chân 103 | PD06 — PORT pin, SERCOM alt |
| Chân 104 | PD07 — PORT pin, SERCOM alt |
| Chân 105 | PD08 — PORT pin, SERCOM alt |
| Chân 106 | PD09 — PORT pin, SERCOM alt |
| Chân 107 | PD10 — PORT pin, SERCOM alt |
| Chân 108 | PD11 — PORT pin, SERCOM alt |
| Chân 109 | PD12 — PORT pin, SERCOM alt |
| Chân 110 | PD13 — PORT pin, SERCOM alt |
| Chân 111 | VDDIO — IO supply voltage |
| Chân 112 | GND — Ground |
| Chân 113 | PD14 — PORT pin, SERCOM alt |
| Chân 114 | PD15 — PORT pin, SERCOM alt |
| Chân 115 | PD16 — PORT pin, SERCOM alt |
| Chân 116 | PD17 — PORT pin, SERCOM alt |
| Chân 117 | PD18 — PORT pin, SERCOM alt |
| Chân 118 | PD19 — PORT pin, SERCOM alt |
| Chân 119 | PD20 — PORT pin, SERCOM alt |
| Chân 120 | PD21 — PORT pin, SERCOM alt |
| Chân 121 | VDD — Digital supply voltage |
| Chân 122 | GND — Ground |
| Chân 123 | NRST — Reset input, active low |
| Chân 124 | SWDIO — Serial Wire Debug I/O |
| Chân 125 | SWCLK — Serial Wire Debug clock |
| Chân 126 | TEST — Test mode (tie to GND) |
| Chân 127 | VDD — Digital supply voltage |
| Chân 128 | GND — Ground (thermal pad slug) |
Ứng dụng tiêu biểu
ATSAMD51P20A-AUT-EFP phù hợp cho 7 Áp dụngs: Industrial HMI and Touch Panels, USB HID / CDC Devices, Drone Flight Controllers and Quadcopters, Audio Processing and DSP Effects, IoT Edge Sensor Hubs, Motor Control and Field-Oriented Control (FOC), Medical Sensor Signal Processing.
Industrial HMI and Touch Panels
The ATSAMD51P20A-AUT-EFP's 120 MHz Cortex-M4F core, hardware FPU, and 1 MB Flash make it well suited to industrial human-machine interface (HMI) panels with capacitive touch and TFT LCD graphics. The 12-bit ADC and DAC enable sensor readout and audio prompts, while the 256 KB SRAM holds display framebuffers for QVGA/WQVGA TFTs. Pair with a Solomon Systech SSD1963 or RA8875 controller via 8-bit parallel PORT, and use the SERCOM channels for SPI display update. Estimated: at 60 Hz refresh and 480x272x16bpp, framebuffer uses ~520 KB external SRAM; internal SRAM suffices for QVGA 8-bit palette rendering.
Được đề xuất
USB HID / CDC Devices
The integrated USB 2.0 Full-Speed device/host controller with on-chip PHY eliminates an external USB chip, reducing BOM cost. The 1 MB Flash hosts full USB stacks (HID, CDC, MSD, Audio) without external memory, while 256 KB SRAM buffers USB packets at Full-Speed FS rates. The Cortex-M4F at 120 MHz easily handles enumeration, polling, and class requests with headroom for application code. Typical uses: industrial configurators, USB-to-UART bridges, custom HID game controllers, and USB audio class speakers/microphones. Use the SERCOM UART for an external RS-232/RS-485 transceiver.
Được đề xuất
Drone Flight Controllers and Quadcopters
The ATSAMD51P20A-AUT-EFP is a proven flight-controller MCU for racing drones and small UAVs, where the Cortex-M4F FPU executes real-time PID loops at 8 kHz with deterministic latency. Hardware dead-time timers (TCC) drive PWM signals to brushless ESCs, and the 12-bit ADC reads multi-axis IMU and barometer data. The Event System and DMA offload sensor reads from the CPU. The 1 MB Flash hosts full Betaflight/INAV firmware, and the 128-TQFP footprint allows maximum GPIO for receiver, GPS, and telemetry UARTs. Estimated: PID loop with 6 motors and IMU averaging fits in 64 KB SRAM with comfortable headroom.
Được đề xuất
Audio Processing and DSP Effects
The Cortex-M4F core with single-precision FPU and DSP extensions accelerates real-time audio processing such as FFT, FIR/IIR filters, biquad EQ, and noise-gate algorithms. The I2S interface connects directly to audio codecs (e.g., SGTL5000, WM8731) for 16/24-bit 48 kHz streams, while the 12-bit DAC supports line-level analog outputs. With 1 MB Flash, designers can include firmware-updatable effect banks. The Cortex-M4F runs an FFT-256 in ~0.5 ms at 120 MHz, leaving ample CPU for Bluetooth streaming or OLED UI. Per Microchip SAM D5X datasheet, the FPU is IEEE-754 single-precision compliant.
Được đề xuất
IoT Edge Sensor Hubs
The ATSAMD51P20A-AUT-EFP aggregates multiple sensor interfaces for IoT edge gateways: 8 SERCOM channels connect UART/SPI/I2C sensors, the 12-bit ADC reads analog transducers, and the Event System routes sensor triggers without CPU wakeup. The Cortex-M4F FPU runs TinyML inference at the edge for anomaly detection or predictive maintenance, then forwards results via UART/USB to a host. Low-power sleep modes (down to 5 microA in Backup mode with RTC running) suit battery-powered nodes, while the 128-TQFP exposes all GPIO for sensor multiplexing. Operating range 1.71 V to 3.6 V suits direct Li-ion / 3.3 V regulated rails.
Được đề xuất
Motor Control and Field-Oriented Control (FOC)
The ATSAMD51P20A's TCC timers with hardware dead-time insertion drive 3-phase PWM signals for sensorless and sensored FOC motor control. The 12-bit ADC samples phase currents in sync with the PWM center, and the Cortex-M4F FPU accelerates Park/Clarke transforms and PI loops at 20-40 kHz update rates. With 1 MB Flash, full CMSIS-DSP libraries fit comfortably. The 128-TQFP exposes all timer channels for 3-phase BLDC/PMSM, stepper, and DC motor control. Source: Microchip AN-2657 application note covers SAMD51 FOC reference firmware with MathWorks MATLAB/Simulink model export.
Được đề xuất
Medical Sensor Signal Processing
The ATSAMD51P20A-AUT-EFP suits medical-grade peripheral devices such as pulse oximeters, ECG front-ends, and connected thermometers. The Cortex-M4F FPU runs DSP filters for heart-rate variability and SpO2 algorithms, while the 12-bit 1 Msps ADC samples photoplethysmography (PPG) signals. The 1 MB Flash supports BLE stack firmware when paired with an external module, and the 256 KB SRAM buffers sensor data before transmission. Industrial -40C to +85C operation covers most clinical environments, though this part is NOT AEC-Q100 qualified. For IEC 62304 medical firmware, design defensively and leverage the ECC SRAM for data integrity.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAMD51P20A-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 | ATSAMD51P20A-AUT | ATSAMD51P19A-CTUT-EFP | ATSAMD51N20A-AUT-EFP | ATSAME54P20A-AU-EFP | ATSAMD51J20A-MFT |
|---|---|---|---|---|---|---|
| Package | 128-TQFP (14x14 mm) | 128-TQFP (14x14 mm) - same | 128-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) | 128-TQFP (14x14 mm) - same | 64-QFN (9x9 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | 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 | ARM Cortex-M4F @ 120 MHz |
| Flash Memory | 1 MB | 1 MB | 512 KB (-50%) | 1 MB | 1 MB | 1 MB |
| SRAM | 256 KB | 256 KB | 128 KB (-50%) | 256 KB | 256 KB | 256 KB |
| Operating Temperature | -40C to +85C (AUT) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| USB Interface | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host |
| Extra Peripherals | Standard SAM D51 set | Standard SAM D51 set | Standard SAM D51 set | Standard SAM D51 set | Adds Ethernet MAC + CAN-FD | Standard SAM D51 set, fewer pins |
Bảo phân biệt quan trọng
- Highest pin count SAM D51 variant with 99 GPIO (vsATSAMD51J20A-MFT (64-QFN))
- Extended Flash Performance (EFP) for higher endurance (vsATSAMD51P20A-AUT (non-EFP))
- Largest flash/sRAM configuration in 128-TQFP SAM D51 family (vsATSAMD51P19A-CTUT-EFP)
Ghi chú thiết kế
The SAMD51 requires careful power decoupling: place 100 nF X7R ceramic capacitors on every VDD/VDDIO pin pair as close as possible to the IC (within 2 mm), and add a 4.7 uF X5R bulk capacitor on the regulator output. The on-chip LDO regulates the internal 1.2 V core from VDD; ensure VDD stays within 1.71 V to 3.6 V. A 10 uF bulk cap at the board's main 3.3 V rail is recommended. Source: Microchip SAM D5X datasheet DS60001507D power supply chapter.
USB DM/DP traces must be routed as a 90 ohm differential pair with matched length (within 150 mil) and a continuous ground reference below. Place the 22 ohm source-series termination resistors on each line close to the MCU. The USB DP pull-up (1.5 kohm to 3.3 V) is internal and selectable via software. Decouple VDDIO with a ferrite bead when USB is in use. The TEST pin (pin 126) must be tied directly to GND for normal operation, never left floating.
Estimated: at maximum sustained CPU activity (120 MHz, all peripherals active, 3.6 V supply), the ATSAMD51P20A draws approximately 70 mA (250 mW). The 128-TQFP package has a theta_JA of about 35 C/W (per Microchip thermal data), resulting in an 8.7 C junction temperature rise above ambient - well within limits for industrial use. However, for -40C to +85C industrial operation, ensure ambient does not exceed 80 C during sustained load. The exposed thermal pad should be soldered to a ground pour for heat spreading.
Common pitfalls: (1) Forgetting to disable the watchdog during development causes reset loops; configure WDT before enabling. (2) The NVMCTRL (Flash controller) requires unlock sequences before write/erase; otherwise writes silently fail. (3) SERCOM pin multiplexing requires configuring PMUX registers; PORT pin function changes do not take effect until PMUX is set. (4) The 32 kHz crystal oscillator start-up can take 30 seconds; use the internal 32 kHz oscillator during development to avoid long boot times. (5) The dual-panel Flash has bank-1 (0x00000-0x7FFFF) and bank-2 (0x80000-0xFFFFF) regions; ensure linker scripts match the chosen Flash layout.
For 120 MHz operation, the HSB (High-Speed Bus) matrix and APB peripherals share bandwidth. Multiple simultaneous DMA transfers and high-speed ADC sampling may contend for bus access; use the Event System to synchronize peripherals to avoid data overruns. The 12-bit ADC achieves 1 Msps but degrades with source impedance above 1 kohm; buffer with a low-impedance op-amp driver. I2S audio interfaces use the same I/O pads as SERCOM and timers - plan pin allocation carefully to avoid conflicts.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product declaration. NOT AEC-Q100 qualified - this is an industrial-grade part. For automotive designs, contact Microchip for SAME54 automotive PCM part numbers.