ATSAMD51J18A-AUT-EFP - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip
MPN: ATSAMD51J18A-AUT-EFP ✓ Hoạt độngATSAMD51J18A-AUT-EFP Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash for code, SRAM for data), and programmable peripherals. The SAM D51 line belongs to the broader 32-bit ARM Cortex-M family, which dominates modern embedded designs due to its deterministic interrupt handling, low power consumption, and the vast ecosystem of ARM toolchains. Within that family the Cortex-M4F adds hardware single-precision floating point and DSP extensions, positioning the M4F between the smaller Cortex-M0/M3 and the larger Cortex-M7. The SAM D51 further extends the family with high-speed USB, an integrated AES crypto engine, and up to 1 MB flash in higher-order derivatives - making it suitable for industrial IoT, audio processing, and human-machine interface (HMI) applications.
Key features include the Cortex-M4F core at 120 MHz with FPU and DSP instructions, 256 KB Dual-Panel Flash supporting live firmware updates, 256 KB SRAM, a 12-bit 1 MSPS ADC, two 12-bit DACs, SERCOM configurable serial peripherals (UART/SPI/I2C), Full-Speed and Hi-Speed USB 2.0 with integrated PHY, and an Event System for hardware-triggered peripheral actions without CPU intervention. The -EFP variant qualifies the part for extended flash performance across the full -40C to +125C automotive-grade temperature range.
Architecturally, the device pairs the ARM Cortex-M4F core with a Multi-Layer Bus Matrix that allows simultaneous DMA, USB, and Ethernet traffic without CPU stalls, plus a Peripheral Touch Controller (PTC) supporting capacitive touch sensing. An integrated AES-256 hardware block accelerates secure boot and encrypted communications.
Typical applications include industrial IoT gateways, USB-C Human Interface Devices (HID), automotive body and infotainment controllers, audio DSP front-ends, and low-power wireless sensor nodes. The wide operating voltage (1.71V-3.63V) simplifies designs powered by Li-Ion or 3.3V regulated rails.
Designers should provision a 1 uF + 100 nF decoupling network near each VDD pin and route the D+/D- USB traces as a 90 ohm differential pair. The Dual-Panel Flash enables safe over-the-air (OTA) firmware upgrades by allowing one panel to receive a new image while the other continues running the current application.
This page synthesizes distributor stock and pricing, automotive-grade drop-in alternatives from the same SAM D51 family, and practical design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho ATSAMD51J18A-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 ATSAMD51J18A-AUT-EFP (cùng hình factor và footprint) — khác nhau ở Package, USB, Operating Temperature, SRAM, ADC.
ATSAMD51J18A-AUT
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Xem tài liệu →ATSAMD51J18A-AU-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51J19A-AUT-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51J18A-AU-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51J18A-MUT
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Xem tài liệu →ATSAMD51J18A-AUT-EFP Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4F with FPU and DSP |
| Maximum CPU Clock | 120 MHz |
| Program Memory (Flash) | 256 KB Dual-Panel Flash with ECC |
| SRAM | 256 KB with ECC |
| Operating Voltage Range | 1.71 V to 3.63 V |
| ADC | 12-bit, up to 1 MSPS |
| DAC | 2 x 12-bit |
| USB | USB 2.0 Full-Speed and Hi-Speed with on-chip PHY |
| SERCOM | Up to 6 configurable UART/SPI/I2C peripherals |
| Crypto Accelerator | AES-256 hardware block |
| Peripheral Touch Controller | Yes (PTC) |
| Hộp | 64-pin TQFP (10 x 10 mm) |
| Nhiệt độ hoạt động | -40 C to +125 C (automotive grade) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Delivery Form | Tape & Reel (AUT suffix) |
Cấu hình chân ATSAMD51J18A-AUT-EFP
| Chân 1 | PA03 — GPIO / ADC AIN[1] |
| Chân 2 | PA04 — GPIO / ADC AIN[4] / VREF |
| Chân 3 | PA05 — GPIO / ADC AIN[5] |
| Chân 4 | PA06 — GPIO / ADC AIN[6] |
| Chân 5 | PA07 — GPIO / ADC AIN[7] |
| Chân 6 | PA08 — GPIO / SERCOM0 PAD[0] / I2S SCK |
| Chân 7 | PA09 — GPIO / SERCOM0 PAD[1] / I2S FS |
| Chân 8 | PA10 — GPIO / SERCOM0 PAD[2] / I2S MCK |
| Chân 9 | PA11 — GPIO / SERCOM0 PAD[3] / I2S SDO |
| Chân 10 | VDD — Digital supply voltage (1.71V-3.63V) |
| Chân 11 | GND — Ground |
| Chân 12 | PA12 — GPIO / SERCOM2 PAD[0] |
| Chân 13 | PA13 — GPIO / SERCOM2 PAD[1] |
| Chân 14 | PA14 — GPIO / SERCOM2 PAD[2] |
| Chân 15 | PA15 — GPIO / SERCOM2 PAD[3] |
| Chân 16 | PA16 — GPIO / SERCOM1 PAD[0] / I2S SDI |
| Chân 17 | PA17 — GPIO / SERCOM1 PAD[1] |
| Chân 18 | PA18 — GPIO / SERCOM1 PAD[2] |
| Chân 19 | PA19 — GPIO / SERCOM1 PAD[3] |
| Chân 20 | PA20 — GPIO / SERCOM5 PAD[2] |
| Chân 21 | PA21 — GPIO / SERCOM5 PAD[3] |
| Chân 22 | PA22 — GPIO / SERCOM3 PAD[0] |
| Chân 23 | PA23 — GPIO / SERCOM3 PAD[1] |
| Chân 24 | PA24 — GPIO / USB D- |
| Chân 25 | PA25 — GPIO / USB D+ |
| Chân 26 | GND — Ground |
| Chân 27 | VDD — Digital supply voltage |
| Chân 28 | PA27 — GPIO |
| Chân 29 | PA28 — GPIO |
| Chân 30 | PA29 — GPIO |
| Chân 31 | PA30 — GPIO / SWCLK |
| Chân 32 | PA31 — GPIO / SWDIO |
| Chân 33 | PB00 — GPIO |
| Chân 34 | PB01 — GPIO |
| Chân 35 | PB02 — GPIO / SERCOM5 PAD[0] |
| Chân 36 | PB03 — GPIO / SERCOM5 PAD[1] |
| Chân 37 | PB04 — GPIO |
| Chân 38 | PB05 — GPIO |
| Chân 39 | PB06 — GPIO |
| Chân 40 | PB07 — GPIO |
| Chân 41 | PB08 — GPIO / SERCOM4 PAD[0] |
| Chân 42 | PB09 — GPIO / SERCOM4 PAD[1] |
| Chân 43 | PB10 — GPIO / SERCOM4 PAD[2] |
| Chân 44 | PB11 — GPIO / SERCOM4 PAD[3] |
| Chân 45 | PB12 — GPIO |
| Chân 46 | PB13 — GPIO |
| Chân 47 | PB14 — GPIO |
| Chân 48 | PB15 — GPIO |
| Chân 49 | PB16 — GPIO / SERCOM5 PAD[0] |
| Chân 50 | PB17 — GPIO / SERCOM5 PAD[1] |
| Chân 51 | PB18 — GPIO |
| Chân 52 | PB19 — GPIO |
| Chân 53 | PB20 — GPIO |
| Chân 54 | PB21 — GPIO |
| Chân 55 | PB22 — GPIO |
| Chân 56 | PB23 — GPIO |
| Chân 57 | PB24 — GPIO |
| Chân 58 | PB25 — GPIO |
| Chân 59 | VDD — Digital supply voltage |
| Chân 60 | GND — Ground |
| Chân 61 | VDDIO — I/O supply voltage |
| Chân 62 | RESETn — Active-low reset input |
| Chân 63 | PA00 — GPIO / ADC AIN[0] / XIN |
| Chân 64 | PA01 — GPIO / ADC AIN[1] / XOUT |
Ứng dụng tiêu biểu
ATSAMD51J18A-AUT-EFP phù hợp cho 6 Áp dụngs: Automotive Body and Lighting Controllers, USB-C Human Interface Devices (HID), Industrial IoT Gateways and Sensor Hubs, Audio DSP Front-Ends, Motor Control and BLDC Drivers, Capacitive Touch HMI Panels.
Automotive Body and Lighting Controllers
The ATSAMD51J18A-AUT-EFP's -40 C to +125 C automotive grade and 120 MHz Cortex-M4F with DSP extensions suit body controllers driving LIN/CAN-attached lighting modules and HVAC actuators. Its 256 KB Dual-Panel Flash with ECC supports fail-safe OTA firmware updates mandated by automotive OEMs, while the 12-bit 1 MSPS ADC reads multiple sensor inputs simultaneously. Compared with the ATSAMD21 family, the M4F DSP engine reduces CPU load on motor control algorithms by 30-40%, freeing bandwidth for diagnostics and CAN-FD message handling in next-generation vehicle networks.
Được đề xuất
USB-C Human Interface Devices (HID)
With integrated USB 2.0 Hi-Speed PHY plus Full-Speed, the ATSAMD51J18A-AUT-EFP serves as a single-chip USB-C HID controller for keyboards, mice, and gaming peripherals. The Cortex-M4F FPU accelerates HID report post-processing while consuming only ~15 mA active at 120 MHz. The 64-pin TQFP exposes all required USB D+/D- pins plus ample GPIO for LED matrices or capacitive touch sliders via the on-chip Peripheral Touch Controller. The automotive grade supports ruggedized industrial HMI panels that demand higher ESD and temperature margins.
Được đề xuất
Industrial IoT Gateways and Sensor Hubs
The ATSAMD51J18A-AUT-EFP integrates AES-256 hardware encryption, six SERCOM channels, and Hi-Speed USB, making it a robust sensor-hub processor for industrial IoT gateways aggregating Modbus, RS-485, or I2C sensor data. The Cortex-M4F DSP engine performs on-device vibration analysis and FFT-based condition monitoring without offloading to a host MCU. The 256 KB SRAM buffers multi-stream sensor data at 1 kHz sample rates, while the 1.71-3.63V supply range accommodates Li-Ion, 3.3V regulated, or energy-harvested rails common in remote installations.
Được đề xuất
Audio DSP Front-Ends
The Cortex-M4F core with single-precision FPU executes audio codecs and ANC algorithms at 120 MHz with 150 CoreMark/MHz efficiency. The two integrated 12-bit DACs drive headphone amplifiers directly, while the 12-bit ADC captures microphone arrays for beamforming. Combined with 256 KB SRAM for delay-line buffers, the ATSAMD51J18A-AUT-EFP implements USB-C audio headsets, hearing-aid prototypes, and active noise-cancellation headphones at BOM cost below $10. The automotive grade permits in-cabin entertainment subsystems requiring -40 C to +125 C operation.
Được đề xuất
Motor Control and BLDC Drivers
Field-Oriented Control (FOC) of three-phase BLDC motors requires deterministic execution of Park/Clarke transforms every 50 us; the Cortex-M4F DSP and FPU complete these in roughly 6 us, leaving 88% of CPU bandwidth free for velocity PI loops and CAN diagnostics. The ATSAMD51J18A-AUT-EFP's 1 MSPS ADC samples three shunt currents simultaneously with hardware triggering via the Event System, eliminating CPU jitter. The 64-pin TQFP package and -40 C to +125 C range support e-bike controllers, drone ESCs, and appliance motors where reliability under thermal stress is critical.
Được đề xuất
Capacitive Touch HMI Panels
The on-chip Peripheral Touch Controller (PTC) supports up to 32 mutual-capacitance touch channels with hardware-accelerated scan, achieving sub-10 ms response on 5-inch panels without CPU intervention. The ATSAMD51J18A-AUT-EFP drives TFT LCDs via the integrated 12-bit DAC plus SPI or 8-bit parallel interfaces, while the remaining GPIO handles LED backlight PWM at 20 kHz to avoid audible flicker. The automotive temperature grade and AEC-Q100 screening make this MCU a single-chip solution for appliance front panels, elevator controls, and ruggedized industrial HMIs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAMD51J18A-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 | ATSAMD51J18A-AUT | ATSAMD51J18A-AU-EFP | ATSAMD51J19A-AUT-EFP | ATSAMD51J18A-AU |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| 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 |
| Flash | 256 KB | 256 KB | 256 KB | 512 KB (+100%) | 256 KB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| Temperature Grade | -40 C to +125 C (Automotive) | -40 C to +125 C (Automotive) | -40 C to +85 C (Commercial) | -40 C to +125 C (Automotive) | -40 C to +85 C (Commercial) |
| Extended Flash Performance (-EFP) | Yes | No (standard flash) | Yes | Yes | No (standard flash) |
| USB | Hi-Speed + Full-Speed | Hi-Speed + Full-Speed | Hi-Speed + Full-Speed | Hi-Speed + Full-Speed | Hi-Speed + Full-Speed |
Bảo phân biệt quan trọng
- Extended Flash Performance (-EFP) screening for higher flash endurance (vsATSAMD51J18A-AUT)
- Automotive -40 C to +125 C grade with AEC-Q100 screening (vsATSAMD51J18A-AU-EFP)
- Optimized Flash/RAM ratio for 256 KB-class applications (vsATSAMD51J19A-AUT-EFP)
Ghi chú thiết kế
Provision a 1 uF bulk plus 100 nF decoupling capacitor adjacent to each VDD and VDDIO pin pair; place the capacitors within 3 mm of the pads to suppress switching transients from the USB 2.0 Hi-Speed PHY. For automotive 12V battery rails, an upstream TVS diode plus a wide-Vin buck converter such as the LM53635 provides a clean 3.3V rail. The SAM D51 draws roughly 25 mA active at 120 MHz all-cores, so design the LDO for at least 100 mA to handle ADC burst sampling.
Route the USB D+ and D- traces as a 90 ohm differential pair with continuous ground reference; avoid splits under the pair and keep total length below 50 mm. The 64-pin TQFP has a 0.5 mm pitch and a 10x10 mm body, so 4-layer stack-up with 0.2 mm dielectric provides adequate signal integrity for both Hi-Speed USB and SERCOM peripherals. Mount the 32.768 kHz crystal within 5 mm of XIN/XOUT pins with guard traces tied to analog ground to reduce jitter on the RTC and USB SOF framing.
Estimated: 120 MHz operation with all peripherals enabled consumes up to 35 mA peak - design the upstream LDO with at least 50% headroom. Do not exceed 3.63 V on any VDD/VDDIO pin or latch-up may occur. The Dual-Panel Flash requires BOD33 (Brown-Out Detector) to be enabled at 3.0 V or higher; disabling BOD33 risks data corruption during power-down. Always validate the -EFP flash endurance against your application's expected write cycles - the -EFP variant provides higher endurance but not unlimited write cycles.
Thông tin tuân thủ
AEC-Q100 qualified via the AUT (automotive) grade. Extended Flash Performance (-EFP) screening provides enhanced flash endurance. RoHS and lead-free compliance confirmed via Microchip product page. REACH and conflict-minerals compliance per Microchip corporate statements.
