ATSAME51J20A-AUT-EFP - 120MHz Cortex-M4F MCU 1MB Flash | Microchip
MPN: ATSAME51J20A-AUT-EFP ✓ نشطATSAME51J20A-AUT-EFP نظرة عامة
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (SRAM), and a rich set of peripherals (ADC, timers, communication controllers). The Cortex-M4F architecture used here adds single-precision floating-point and DSP instructions, positioning this MCU in the hierarchy: Cortex-M4F core -> ARM Cortex-M family -> 32-bit microcontroller -> embedded processing IC. This part is part of the SAM E5x family, which extends Microchip's SAM D5x/E5x lineup for industrial and general-purpose applications.
Key features of the ATSAME51J20A-AUT-EFP include up to 120 MHz core clock with FPU, 1 MB Dual-Panel Flash with ECC, 256 KB SRAM, Full-Speed USB 2.0 with integrated PHY, two CAN-FD controllers, up to six SERCOM channels configurable as UART/SPI/I2C, a 12-bit 1 Msps ADC, and multiple 16-bit timers. The Cortex-M4F DSP extensions accelerate motor-control and signal-processing loops, while the dual-panel architecture enables live firmware updates without downtime.
Typical applications include industrial motor control, factory automation, building automation (HVAC, lighting), USB peripherals (HID, CDC, audio class), CAN-FD automotive body controllers, IoT edge nodes with cryptographic firmware loads, and Human-Machine Interface (HMI) panels with TFT displays driven by the integrated SMC peripheral for external memory.
When designing with this MCU, note that the AUT-EFP suffix denotes tape-and-reel packaging, extended Flash performance, and the automotive temperature grade (-40C to +125C). For budget-sensitive designs, evaluate ATSAME51G18A series parts; for higher integration with Ethernet, look at the SAME54 family in the same TQFP-64 footprint.
بدائل مباشرة لـ ATSAME51J20A-AUT-EFP — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ATSAME51J20A-AUT-EFP (نفس عامل الشكل والبصمة) — يختلف في ADC, USB, Package, DAC, Program Memory (Flash).
ATSAME51J19A-AUT-EFP
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAMD51J20A-AUT-EFP
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAME51J19A-MUT-EFP
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAME51G19A-MU-EFP
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAMD51J19A-AUT-EFP
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ATSAME51J20A-AUT-EFP الحدود القصوى والخصائص الكهربائية
| Core Architecture | ARM Cortex-M4F with FPU and DSP |
| أقصى تردد للساعة | 120 MHz |
| Program Memory (Flash) | 1 MB (1M x 8) with ECC, Dual-Panel |
| SRAM | 256 KB |
| Operating Voltage | 3.3 V typical (1.71 V to 3.6 V core/IO) |
| العلبة | 64-pin TQFP (10x10 mm) |
| نوع التركيب | Surface Mount |
| نطاق درجة حرارة التشغيل | -40 C to +125 C (automotive grade) |
| ADC | 12-bit, up to 1 Msps |
| USB | USB 2.0 Full-Speed with on-chip PHY |
| CAN | 2x CAN-FD controllers |
| SERCOM | Up to 6 (configurable UART/SPI/I2C) |
| Timers | Multiple 16-bit TCC and TC timers |
| مستوى MSL | 3 (per JEDEC J-STD-020) |
| حالة RoHS | Compliant |
| Packaging Code Suffix | AUT = Tape & Reel, EFP = Extended Flash Performance |
تكوين أطراف ATSAME51J20A-AUT-EFP
| دبوس 1 | PA00 — GPIO PA00 / XIN32 |
| دبوس 2 | PA01 — GPIO PA01 / XOUT32 |
| دبوس 3 | PA02 — GPIO PA02 / AIN0 |
| دبوس 4 | PA03 — GPIO PA03 / AIN1 / VREFA |
| دبوس 5 | VDDIO — Digital IO supply |
| دبوس 6 | GND — Ground |
| دبوس 7 | PA04 — GPIO PA04 / AIN2 |
| دبوس 8 | PA05 — GPIO PA05 / AIN3 |
| دبوس 9 | PA06 — GPIO PA06 |
| دبوس 10 | PA07 — GPIO PA07 |
| دبوس 11 | PA08 — GPIO PA08 / SERCOM0 PAD0 |
| دبوس 12 | PA09 — GPIO PA09 / SERCOM0 PAD1 |
| دبوس 13 | PA10 — GPIO PA10 / SERCOM0 PAD2 |
| دبوس 14 | PA11 — GPIO PA11 / SERCOM0 PAD3 |
| دبوس 15 | VDDIO — Digital IO supply |
| دبوس 16 | GND — Ground |
| دبوس 17 | PA12 — GPIO PA12 |
| دبوس 18 | PA13 — GPIO PA13 |
| دبوس 19 | PA14 — GPIO PA14 / SWD CLK |
| دبوس 20 | PA15 — GPIO PA15 / SWD IO |
| دبوس 21 | PA16 — GPIO PA16 |
| دبوس 22 | PA17 — GPIO PA17 |
| دبوس 23 | PA18 — GPIO PA18 |
| دبوس 24 | PA19 — GPIO PA19 |
| دبوس 25 | VDDIO — Digital IO supply |
| دبوس 26 | GND — Ground |
| دبوس 27 | PA20 — GPIO PA20 |
| دبوس 28 | PA21 — GPIO PA21 |
| دبوس 29 | PA22 — GPIO PA22 |
| دبوس 30 | PA23 — GPIO PA23 |
| دبوس 31 | PA24 — GPIO PA24 |
| دبوس 32 | PA25 — GPIO PA25 |
| دبوس 33 | PA26 — GPIO PA26 |
| دبوس 34 | PA27 — GPIO PA27 |
| دبوس 35 | PA28 — GPIO PA28 |
| دبوس 36 | PA29 — GPIO PA29 |
| دبوس 37 | PA30 — GPIO PA30 |
| دبوس 38 | PA31 — GPIO PA31 |
| دبوس 39 | PB00 — GPIO PB00 |
| دبوس 40 | PB01 — GPIO PB01 |
| دبوس 41 | PB02 — GPIO PB02 / AIN4 |
| دبوس 42 | PB03 — GPIO PB03 / AIN5 |
| دبوس 43 | VDDIO — Digital IO supply |
| دبوس 44 | GND — Ground |
| دبوس 45 | PB04 — GPIO PB04 |
| دبوس 46 | PB05 — GPIO PB05 |
| دبوس 47 | PB06 — GPIO PB06 |
| دبوس 48 | PB07 — GPIO PB07 |
| دبوس 49 | PB08 — GPIO PB08 |
| دبوس 50 | PB09 — GPIO PB09 |
| دبوس 51 | PB10 — GPIO PB10 |
| دبوس 52 | PB11 — GPIO PB11 |
| دبوس 53 | PB12 — GPIO PB12 |
| دبوس 54 | PB13 — GPIO PB13 |
| دبوس 55 | PB14 — GPIO PB14 |
| دبوس 56 | PB15 — GPIO PB15 |
| دبوس 57 | VDDIO — Digital IO supply |
| دبوس 58 | GND — Ground |
| دبوس 59 | PB16 — GPIO PB16 |
| دبوس 60 | PB17 — GPIO PB17 |
| دبوس 61 | PB18 — GPIO PB18 |
| دبوس 62 | PB19 — GPIO PB19 |
| دبوس 63 | PB20 — GPIO PB20 |
| دبوس 64 | PB21 — GPIO PB21 |
التطبيقات النموذجية
ATSAME51J20A-AUT-EFP مناسب لـ 6 التطبيقs: Industrial Motor Control, USB HID / CDC Peripherals, Automotive CAN-FD Body Controllers, IoT Edge Sensor Hubs, HMI Touch Panels with TFT Display, Building Automation Controllers.
Industrial Motor Control
The ATSAME51J20A-AUT-EFP fits industrial motor-control designs thanks to its 120 MHz Cortex-M4F with FPU and DSP extensions, dual CAN-FD controllers, and multiple 16-bit TCC timers for PWM generation. Its 1 MB Flash accommodates complex FOC (field-oriented control) and sensored/sensorless BLDC algorithms, while the 256 KB SRAM holds ADC double buffers and state-space estimator tables. With a 12-bit 1 Msps ADC the MCU samples back-EMF or shunt current synchronously to PWM edges, enabling sub-millisecond torque loops. The dual-panel flash allows in-field firmware updates on drives without halting production lines.
موصى به
USB HID / CDC Peripherals
The ATSAME51J20A-AUT-EFP integrates USB 2.0 Full-Speed with on-chip PHY, eliminating external PHY chips and reducing BOM cost for HID keyboards, mice, CDC virtual COM ports, and USB audio class devices. The Cortex-M4F runs HID report parsing and CDC command handling in real time at 120 MHz, while 1 MB Flash holds USB stacks, composite-device descriptors, and application logic. The SERCOM peripherals expand the design to multi-port USB hubs with UART bridges, and the 64-pin TQFP provides enough GPIOs for RGB-backlit keyboards and rotary encoders without an external IO expander.
موصى به
Automotive CAN-FD Body Controllers
With two CAN-FD controllers and an automotive -40 C to +125 C temperature grade, the ATSAME51J20A-AUT-EFP targets automotive body controllers managing lighting, mirrors, and door modules. CAN-FD at 8 Mbps enables rapid diagnostic flash of BCM modules, while the dual-panel flash supports seamless FOTA updates per AUTOSAR. The 1 MB Flash stores UDS/KWP2000 stacks alongside manufacturer-specific calibration data, and the 12-bit ADC reads analog body sensors with 1 Msps throughput. Hardware crypto accelerators in the SAM E51 silicon enable secure boot and CAN message authentication.
موصى به
IoT Edge Sensor Hubs
The ATSAME51J20A-AUT-EFP serves as a low-power IoT edge hub aggregating sensor data over I2C/SPI SERCOM channels and forwarding it via Wi-Fi co-processors or LoRa modules. Its 1 MB Flash stores AWS IoT or Azure SDK TLS certificates and OTA handlers, while the 256 KB SRAM buffers JSON payloads before transmission. The Cortex-M4F runs edge inference for vibration analysis or anomaly detection with DSP acceleration, all in a 64-pin TQFP that integrates cleanly with FRAM memory expansion via SERCOM. Sleep currents below 5 uA in deep-sleep modes support battery-powered deployments.
موصى به
HMI Touch Panels with TFT Display
The ATSAME51J20A-AUT-EFP drives small-to-medium TFT HMI panels by combining the integrated SMC (Static Memory Controller) for external parallel display memory with the 12-bit ADC for touch-sensing. The 120 MHz Cortex-M4F with FPU renders LVGL/Embedded Wizard graphics in real time while managing capacitive touch over I2C. Dual CAN-FD channels serve as industrial communication backbones in PLC HMI stations, and 1 MB Flash hosts multi-language asset files and rich UI strings. Designers benefit from one MCU replacing separate display driver and communication controllers.
موصى به
Building Automation Controllers
Building automation gateways based on the ATSAME51J20A-AUT-EFP aggregate BACnet, Modbus, and KNX traffic across RS-485 SERCOM channels, USB diagnostics, and CAN-FD building backbones. The Cortex-M4F processes scheduling rules and HVAC control loops in real time, while the 1 MB Flash stores BACnet object databases and Modbus register maps. With -40 C to +125 C operation the MCU is rated for unconditioned rooftop and basement equipment rooms. Dual-panel flash enables remote firmware updates during off-hours without disrupting building operations.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ATSAME51J20A-AUT-EFP — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ATSAME51J19A-AUT-EFP | ATSAMD51J20A-AUT-EFP | ATSAME51J19A-MUT-EFP | ATSAME51G19A-MU-EFP |
|---|---|---|---|---|---|
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same |
| Brand | 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 |
| Flash | 1 MB Dual-Panel | 512 KB Dual-Panel | 1 MB Dual-Panel | 512 KB Dual-Panel | 512 KB Dual-Panel |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB |
| USB 2.0 FS | Yes (on-chip PHY) | Yes (on-chip PHY) | Yes (on-chip PHY) | Yes (on-chip PHY) | No (USB-less variant) |
| CAN-FD | 2 controllers | 2 controllers | 2 controllers | 2 controllers | 1 controller |
| Temperature Grade | -40C to +125C (automotive) | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C |
أبرز الفروقات
- Dual-Panel Flash for live firmware updates (مقابلATSAME51J19A-AUT-EFP)
- Latest SAME51 silicon revision with Extended Flash Performance (مقابلATSAMD51J20A-AUT-EFP)
- USB 2.0 Full-Speed with on-chip PHY retained (مقابلATSAME51G19A-MU-EFP)
ملاحظات التصميم
Estimated: at 120 MHz core clock with all peripherals enabled, the ATSAME51J20A draws approximately 25-30 mA from VDDIO (3.3 V) plus 5-10 mA from VDDIN. Decouple each VDDIO pin with a 100 nF X7R ceramic capacitor placed within 3 mm of the pin, and add a single 4.7 uF bulk capacitor near the IC. For USB applications, the internal PHY draws an additional 10 mA when active. Enable brown-out reset (BOR) at the lowest threshold to prevent Flash corruption during supply dips below 1.71 V.
Route the SWD clock and data signals (PA14/PA15) as a length-matched pair within 25 mm and keep them away from SERCOM traces carrying high-speed switching. Provide a 4-layer PCB with a continuous ground plane under the TQFP-64 footprint; the exposed pad (where present on QFN variants) must be soldered to the ground plane for thermal dissipation. Place the 32.768 kHz crystal within 5 mm of PA00/PA01 with a ground guard ring to reduce noise coupling to the RTC domain.
Do not exceed the 3.6 V absolute maximum on any IO pin; even brief transients above 3.6 V will trigger ESD latchup. Configure unused pins as inputs with internal pull-up enabled to minimize supply current. When migrating from ATSAMD51 firmware, verify the clock tree registers since the SAME51 family moved the DFLL configuration block. The dual-panel flash requires the BOOTPROT fuse to be set explicitly for secure OTA; default fuses leave the second panel unprotected.
Keep the USB DP/DM traces at 90 ohm differential impedance with length matching within 2 mm, and place the 27 ohm series termination resistors within 4 mm of the MCU pins. For CAN-FD, route CANH/CANL as a 120 ohm differential pair with the termination resistor split at the transceiver end. The SERCOM pads used for high-speed SPI (>40 MHz) need series resistors to dampen reflections; do not exceed the 30 pF total capacitive load on each SERCOM pin.
معلومات الامتثال
Automotive grade -40C to +125C per SAM E51 datasheet DS60001507D. RoHS and REACH compliant per Microchip product page.
