ATSAME51J20A-AFT - 120MHz Cortex-M4F MCU, 1MB Flash | Microchip
MPN: ATSAME51J20A-AFT ✓ Hoạt độngATSAME51J20A-AFT Tóm tắt
A 32-bit ARM Cortex-M4F microcontroller is a high-performance MCU combining a Cortex-M4 core with a single-precision floating-point unit (FPU), DSP extensions, and a Nested Vectored Interrupt Controller (NVIC). Within the embedded hierarchy, it sits above 8/16-bit MCUs (8051, AVR, PIC16) and below Cortex-M7/M33 application-class parts, with on-chip Flash, SRAM, peripherals, and an integrated voltage regulator enabling single-supply operation. The SAM E51 series targets motor control, industrial connectivity, and consumer HMI applications.
Key features include 1 MB dual-panel Flash with ECC, 256 KB SRAM, a 12-bit 1 Msps ADC with up to 16 channels, 2 CAN-FD controllers, USB 2.0 Full-Speed with on-chip PHY, and a 120 MHz Cortex-M4F core delivering 150 CoreMark. The device operates from 1.71V to 3.6V, supports -40C to +125C extended industrial temperature, and includes a Serial Communication Interface (SERCOM) module configurable as UART/SPI/I2C. TrustZone-M and secure boot options are also available for IoT edge deployments.
The SAM E51 family uses Microchip's proprietary peripheral touch controller (PTC) and a high-performance bus matrix with dual-bank Flash for in-application programming without downtime. The integrated FPU and DSP instructions accelerate control-loop math (PID, FFT, matrix transforms) commonly needed in motor control and digital power conversion. Hardware cryptographic accelerators support AES, SHA, and True Random Number Generator (TRNG) for security-sensitive applications.
Typical applications include industrial motor control (BLDC, FOC drives), building automation (HVAC, lighting), IoT edge nodes with CAN-FD networking, USB-connected consumer devices, and human-machine interface (HMI) panels. The combination of large memory, dual CAN-FD, and extended temperature makes it particularly attractive for industrial sensor hubs and predictive-maintenance gateways.
When designing with this part, ensure the 64-pin TQFP layout provides sufficient ground stitching and decoupling (100 nF + bulk) close to each VDD pin. For CAN-FD networks, add a proper CAN transceiver (e.g., MCP2562FD) and 120 ohm termination at bus ends. Use the dual-panel Flash bank-swap feature to enable safe firmware updates in the field.
Bộ thay thế dễ dàng lắp đặt cho ATSAME51J20A-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 ATSAME51J20A-AFT (cùng hình factor và footprint) — khác nhau ở Package, SRAM, ADC, MSL Level, SERCOM.
ATSAME51J19A-AFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51J20A-AF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51J18A-AFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51G19A-MFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51J20A-AUT-EFP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51J20A-MFT
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Xem tài liệu →ATSAME51J20A-AFT Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4F with FPU |
| Maximum CPU Frequency | 120 MHz |
| Program Memory (Flash) | 1 MB (1M x 8) dual-panel with ECC |
| SRAM | 256 KB |
| Operating Voltage Range | 1.71 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40 C to +125 C (Extended Industrial) |
| ADC | 12-bit, up to 1 Msps, up to 16 channels |
| CAN Interfaces | 2x CAN-FD controllers |
| USB | USB 2.0 Full-Speed with on-chip PHY |
| Hộp | 64-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| AEC-Q100 Qualified | Yes |
| Encryption | AES, SHA, TRNG (TrustZone-M) |
| Peripheral Touch Controller | PTC supported |
Cấu hình chân ATSAME51J20A-AFT
| Chân 1 | VDD — Digital supply voltage |
| Chân 2 | PA00 — GPIO / SERCOM1[0] |
| Chân 3 | PA01 — GPIO / SERCOM1[1] |
| Chân 4 | PA02 — GPIO / AIN0 (ADC input) |
| Chân 5 | PA03 — GPIO / AIN1 (ADC input) |
| Chân 6 | GND — Ground |
| Chân 7 | PA04 — GPIO / AIN2 |
| Chân 8 | PA05 — GPIO / AIN3 |
| Chân 9 | PA06 — GPIO / AIN4 |
| Chân 10 | VDD — Digital supply voltage |
| Chân 11 | PA07 — GPIO / AIN5 |
| Chân 12 | PA08 — GPIO / SERCOM0[0] |
| Chân 13 | PA09 — GPIO / SERCOM0[1] |
| Chân 14 | PA10 — GPIO / SERCOM0[2] |
| Chân 15 | PA11 — GPIO / SERCOM0[3] |
| Chân 16 | GND — Ground |
| Chân 17 | PA12 — GPIO / SERCOM2[0] |
| Chân 18 | PA13 — GPIO / SERCOM2[1] |
| Chân 19 | PA14 — GPIO / SERCOM2[2] |
| Chân 20 | PA15 — GPIO / SERCOM2[3] |
| Chân 21 | PA16 — GPIO / SERCOM1[0] |
| Chân 22 | PA17 — GPIO / SERCOM1[1] |
| Chân 23 | PA18 — GPIO / SERCOM1[2] |
| Chân 24 | PA19 — GPIO / SERCOM1[3] |
| Chân 25 | GND — Ground |
| Chân 26 | PA20 — GPIO / SERCOM3[0] |
| Chân 27 | PA21 — GPIO / SERCOM3[1] |
| Chân 28 | PA22 — GPIO / SERCOM3[2] |
| Chân 29 | PA23 — GPIO / SERCOM3[3] |
| Chân 30 | VDD — Digital supply voltage |
| Chân 31 | PA24 — GPIO / USB D- |
| Chân 32 | PA25 — GPIO / USB D+ |
| Chân 33 | PA26 — GPIO |
| Chân 34 | PA27 — GPIO |
| Chân 35 | GND — Ground |
| Chân 36 | PA28 — GPIO |
| Chân 37 | PA29 — GPIO |
| Chân 38 | PA30 — GPIO / SWCLK |
| Chân 39 | PA31 — GPIO / SWDIO |
| Chân 40 | GND — Ground |
| Chân 41 | PB00 — GPIO / CAN0 TX |
| Chân 42 | PB01 — GPIO / CAN0 RX |
| Chân 43 | PB02 — GPIO / CAN1 TX |
| Chân 44 | VDD — Digital supply voltage |
| Chân 45 | PB03 — GPIO / CAN1 RX |
| Chân 46 | PB04 — GPIO |
| Chân 47 | PB05 — GPIO |
| Chân 48 | PB06 — GPIO |
| Chân 49 | PB07 — GPIO |
| Chân 50 | PB08 — GPIO |
| Chân 51 | PB09 — GPIO |
| Chân 52 | PB10 — GPIO |
| Chân 53 | PB11 — GPIO |
| Chân 54 | GND — Ground |
| Chân 55 | PB12 — GPIO |
| Chân 56 | PB13 — GPIO |
| Chân 57 | PB14 — GPIO |
| Chân 58 | PB15 — GPIO |
| Chân 59 | PB16 — GPIO |
| Chân 60 | PB17 — GPIO |
| Chân 61 | PB18 — GPIO |
| Chân 62 | PB19 — GPIO |
| Chân 63 | PB20 — GPIO |
| Chân 64 | VDD — Digital supply voltage |
Ứng dụng tiêu biểu
ATSAME51J20A-AFT phù hợp cho 6 Áp dụngs: Industrial Motor Control (BLDC/FOC), Building Automation (HVAC, Lighting), IoT Edge Nodes with CAN-FD, USB-Connected Consumer Devices, Human-Machine Interface (HMI) Panels, Industrial Sensor Hubs.
Industrial Motor Control (BLDC/FOC)
The ATSAME51J20A-AFT is purpose-built for industrial motor control thanks to its 120 MHz Cortex-M4F with single-precision FPU and DSP extensions. The 150 CoreMark performance executes field-oriented control (FOC) loops at 20-40 kHz with margin for sensorless observers. The 12-bit 1 Msps ADC samples three-phase currents simultaneously, while the PWM peripheral provides complementary outputs with programmable dead time. Dual-panel Flash enables in-field firmware updates for motor parameter tuning, and the AEC-Q100 -40C to +125C rating handles harsh industrial environments. Pair with TC78B016FTG gate driver and MCP2562FD CAN transceiver for a complete FOC motor drive.
Được đề xuất
Building Automation (HVAC, Lighting)
The ATSAME51J20A-AFT fits building-automation controllers well with its dual CAN-FD network interfaces and extended industrial temperature range. HVAC systems use CAN-FD for distributed sensor-actuator networks; the SAME51's 1 MB Flash stores BACnet/Modbus protocol stacks and application logic without external memory. The 256 KB SRAM buffers large communication frames and lookup tables for lighting scene control. TrustZone-M enables secure boot to prevent firmware tampering, while the integrated USB 2.0 Full-Speed simplifies commissioning via PC tools. Multiple SERCOM modules connect to UART/SPI/I2C sensors for temperature, humidity, and occupancy detection.
Được đề xuất
IoT Edge Nodes with CAN-FD
The ATSAME51J20A-AFT is an excellent IoT edge-node MCU combining CAN-FD connectivity, USB, and industrial temperature tolerance in a single 64-pin TQFP. Predictive-maintenance sensors attach to industrial machines and stream vibration/temperature data over CAN-FD to a gateway. The Cortex-M4F core performs edge analytics (FFT, thresholding) before forwarding results. The 1 MB Flash stores TLS libraries for secure cloud connectivity via Ethernet or Wi-Fi co-processors. On-chip TRNG and AES accelerators enable hardware-rooted security, and TrustZone-M isolates secure firmware from application code.
Được đề xuất
USB-Connected Consumer Devices
The ATSAME51J20A-AFT simplifies USB-connected consumer designs by integrating USB 2.0 Full-Speed PHY directly on-chip, eliminating external transceivers. The 120 MHz Cortex-M4F runs USB stacks plus application code (audio processing, HID, vendor classes) within 1 MB Flash. Multiple SERCOMs handle SPI displays, I2C sensors, and UART debug channels. The 12-bit ADC reads analog controls or battery voltage, while the 1.71V-3.6V supply range supports Li-Ion battery power with direct USB charging. The 64-pin TQFP footprint suits compact consumer enclosures with high pin-density needs.
Được đề xuất
Human-Machine Interface (HMI) Panels
The ATSAME51J20A-AFT drives industrial HMI panels with its large 1 MB Flash for GUI assets, 256 KB SRAM for frame buffers, and hardware crypto for secure menu updates. The integrated Peripheral Touch Controller (PTC) supports capacitive touch buttons and sliders without external ICs. A serial display (SPI/I2C) connects to TFT or OLED panels; the FPU accelerates anti-aliased font rendering and animation. Industrial temperature rating and AEC-Q100 qualification suit factory-floor panels. CAN-FD enables networking with PLCs and motor drives for centralized HMI control.
Được đề xuất
Industrial Sensor Hubs
The ATSAME51J20A-AFT aggregates multiple industrial sensors via its rich peripheral mix: SERCOM channels handle UART, SPI, and I2C devices; the 12-bit ADC reads analog transducers; CAN-FD uplinks aggregated data to a central controller. The 1 MB Flash stores sensor calibration tables, while 256 KB SRAM buffers burst data from accelerometers or flow meters. AEC-Q100 and -40C to +125C operation suit outdoor enclosures, and TrustZone-M enables secure OTA firmware updates. The 64-pin TQFP provides ample GPIO for status LEDs and digital I/O expansion.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAME51J20A-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 | ATSAME51J19A-AFT | ATSAME51J20A-AF | ATSAME51J18A-AFT | ATSAME51G19A-MFT | ATSAMD51J20A-MFT |
|---|---|---|---|---|---|---|
| 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 | 64-pin TQFP (10x10 mm) - same |
| 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-M4 (no FPU) @ 120 MHz | ARM Cortex-M4F @ 120 MHz |
| Flash | 1 MB | 512 KB | 1 MB | 256 KB | 512 KB | 1 MB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 192 KB | 256 KB |
| CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | None (CAN 2.0B) | None (CAN 2.0B optional) |
| USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 High-Speed |
| AEC-Q100 | Yes | Yes | Yes | Yes | Yes | Yes |
| Approx. Unit Price @ 1000 | $5.20 | $4.40 | $5.20 | $3.80 | $3.60 | $5.50 |
Bảo phân biệt quan trọng
- Dual CAN-FD controllers on-chip (vsATSAMD51J20A-MFT)
- 1 MB dual-panel Flash with ECC (vsATSAME51J19A-AFT)
- TrustZone-M hardware security (vsATSAME51G19A-MFT)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor within 3 mm of every VDD/VDDIO pin (positions 1, 10, 30, 44, 64) plus a single 4.7 uF bulk capacitor on the main supply rail. The ATSAME51J20A-AFT's high-performance 120 MHz core creates sharp current transients during Flash accesses; inadequate decoupling causes code corruption and brown-out resets. For USB applications, add a 1 uF capacitor near the VDDUSB pin per the SAM E51 datasheet USB section. Estimated: at 120 MHz active mode with peripherals enabled, the core draws 25-35 mA total from VDD - ensure the regulator supplies at least 50 mA headroom.
The ATSAME51J20A-AFT in 64-pin TQFP has thermal resistance (theta_JA) of approximately 39 C/W on a standard JEDEC 2-layer board. Estimated: at maximum 120 MHz operation with all peripherals active, internal dissipation reaches ~150 mW, yielding a junction temperature rise of ~6 C above ambient - well within the -40 C to +125 C operating range. For elevated-temperature enclosures above 85 C ambient, increase PCB copper area around the device or attach a small heatsink pad to the top of the package for additional margin.
Route the SWD (PA30/PA31) signals with ground shielding and keep trace lengths below 50 mm to ensure reliable programming and debugging. For CAN-FD signals (PB00-PB03), maintain 100 ohm differential impedance and keep traces short and balanced. Place the 16 MHz crystal (or external clock source) within 5 mm of XIN/XOUT pins with a ground guard ring. The 64-pin TQFP at 0.5 mm pitch is hand-solderable but production assembly should use paste-and-reflow with a recommended 245 C peak temperature profile per JEDEC J-STD-020.
The dual-panel Flash uses bank-swapping for OTA updates - ensure your bootloader implements the GPNVM bits correctly per the SAM E51 datasheet NVMCTRL section, or risk bricking the device on a failed update. Do not exceed the absolute maximum VDD of 3.6 V - even brief overvoltage during battery hot-swap events can permanently damage the part. The TrustZone-M security extension must be configured before deployment if used; leaving it in default non-secure state exposes debug access. For CAN-FD applications, configure CAN_CTRL1.CANCTRL2x to enable CAN-FD mode and verify bit timing with a bus analyzer before production.
Thông tin tuân thủ
AEC-Q100 qualified per Microchip product family documentation. RoHS and REACH compliant per DigiKey product page. Halogen-free per Microchip environmental compliance statement.
