ATSAME51J19A-MFT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
MPN: ATSAME51J19A-MFT ✓ פעילATSAME51J19A-MFT סקירה
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package. The Cortex-M4F architecture places the ATSAME51J19A-MFT within the broader hierarchy of: microcontroller -> embedded processor -> 32-bit MCU -> ARM Cortex-M family -> Cortex-M4 class (with FPU). It is positioned above Cortex-M0/M0+ for performance-sensitive tasks and below Cortex-M7/M33 in Microchip's SAM lineup.
Key features include 120 MHz Cortex-M4F core with DSP extensions, 512 KB Flash with ECC, 192 KB SRAM, 16 KB cache, and up to 51 GPIO. The integrated FPU accelerates floating-point math for sensor fusion and motor control loops, while the 1 MSPS ADC supports precision analog sampling. Dedicated peripherals such as the SERCOM (configurable serial communication) blocks, QSPI for external memory, and an Ethernet MAC interface expand the device's connectivity options.
The ATSAME51J19A-MFT utilizes Microchip's proprietary SAM E51 architecture optimized for low-power mixed-signal applications. Dual-Panel Flash allows simultaneous read-while-write operation, enabling live firmware updates without halting execution. The peripheral event system enables hardware-triggered inter-peripheral signaling without CPU intervention, reducing latency for time-critical applications such as motor control and high-speed data acquisition.
Typical applications include industrial automation controllers, building automation gateways, USB-connected sensor hubs, automotive body electronics, and consumer IoT edge nodes. The combination of CAN-FD, USB, and Ethernet makes it particularly well-suited for industrial networking and connected-device applications requiring deterministic communication.
When designing with the ATSAME51J19A-MFT, pay close attention to the QFN-64 thermal pad layout - the exposed pad must be soldered to a sufficiently large copper pour for heat dissipation and ground return. The internal 48 MHz DFLL should be calibrated against the USB SOF framing for clock accuracy in USB Full-Speed applications.
This page synthesizes distributor pricing, drop-in alternatives from Microchip's SAM E51 and SAMD51 families, and practical design notes not found on the manufacturer datasheet.
חלופות תחליף ישיר עבור ATSAME51J19A-MFT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם ATSAME51J19A-MFT (אותו גורם צורה וטביעת רגל) — שונים ב Package, ADC, SRAM, USB, Operating Temperature.
ATSAME51J18A-MFT
✅ Drop-Inצור קשר לקבלת מחיר
ATSAME51G19A-MFT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←ATSAME51G18A-MFT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←ATSAMD51J20A-MFT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←ATSAMD51J19A-MF
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←ATSAME51J19A-MFT דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | ARM Cortex-M4F with FPU and DSP extensions |
| Maximum CPU Clock | 120 MHz |
| Program Memory (Flash) | 512 KB with ECC |
| SRAM | 192 KB |
| Cache | 16 KB |
| Operating Voltage Range | 1.71 V to 3.6 V |
| GPIO Count | 51 |
| ADC | 12-bit, up to 1 MSPS, 16 channels |
| DAC | 12-bit, 2 channels |
| USB | USB 2.0 Full-Speed Device/Host |
| CAN | CAN-FD |
| Communication Interfaces | SERCOM (UART/SPI/I2C), QSPI, I2S, Ethernet MAC |
| מארז | 64-pin QFN (9x9 mm) |
| טמפרטורת פעולה | -40C to +125C (Extended Industrial) |
| סוג הרכבה | Surface Mount |
| סטטוס RoHS | Compliant |
תצורת פינים של ATSAME51J19A-MFT
| פין 1 | PA00 — GPIO / SERCOM1.0 / ADC0 |
| פין 2 | PA01 — GPIO / SERCOM1.1 / ADC0 |
| פין 3 | PA02 — GPIO / SERCOM2.0 / ADC0 |
| פין 4 | PA03 — GPIO / SERCOM2.1 / ADC0 |
| פין 5 | PA04 — GPIO / SERCOM0.0 / ADC0 |
| פין 6 | PA05 — GPIO / SERCOM0.1 / ADC0 |
| פין 7 | PA06 — GPIO / SERCOM0.2 / ADC0 |
| פין 8 | PA07 — GPIO / SERCOM0.3 / ADC0 |
| פין 9 | VDDIO — I/O Supply Voltage |
| פין 10 | GND — Ground |
| פין 11 | PA08 — GPIO / SERCOM2.0 / ADC0 |
| פין 12 | PA09 — GPIO / SERCOM2.1 / ADC0 |
| פין 13 | PA10 — GPIO / SERCOM2.2 / ADC0 |
| פין 14 | PA11 — GPIO / SERCOM2.3 / ADC0 |
| פין 15 | VDDIO — I/O Supply Voltage |
| פין 16 | PA12 — GPIO / SERCOM4.0 |
| פין 17 | PA13 — GPIO / SERCOM4.1 |
| פין 18 | PA14 — GPIO / SERCOM4.2 |
| פין 19 | PA15 — GPIO / SERCOM4.3 |
| פין 20 | PA16 — GPIO / SERCOM1.0 / I2S |
| פין 21 | PA17 — GPIO / SERCOM1.1 / I2S |
| פין 22 | PA18 — GPIO / SERCOM1.2 / I2S |
| פין 23 | PA19 — GPIO / SERCOM1.3 / I2S |
| פין 24 | PA20 — GPIO / SERCOM3.0 |
| פין 25 | PA21 — GPIO / SERCOM3.1 |
| פין 26 | PA22 — GPIO / SERCOM3.2 |
| פין 27 | PA23 — GPIO / SERCOM3.3 |
| פין 28 | PA24 — GPIO / SERCOM5.2 / USB_DM |
| פין 29 | PA25 — GPIO / SERCOM5.3 / USB_DP |
| פין 30 | GND — Ground |
| פין 31 | VDDIO — I/O Supply Voltage |
| פין 32 | PB00 — GPIO / SERCOM5.0 |
| פין 33 | PB01 — GPIO / SERCOM5.1 |
| פין 34 | PB02 — GPIO / SERCOM5.2 |
| פין 35 | PB03 — GPIO / SERCOM5.3 |
| פין 36 | PB04 — GPIO / SERCOM3.0 |
| פין 37 | PB05 — GPIO / SERCOM3.1 |
| פין 38 | PB06 — GPIO / SERCOM3.2 |
| פין 39 | PB07 — GPIO / SERCOM3.3 |
| פין 40 | PB08 — GPIO / SERCOM4.0 / ADC0 |
| פין 41 | PB09 — GPIO / SERCOM4.1 / ADC0 |
| פין 42 | PB10 — GPIO / SERCOM4.2 / ADC0 |
| פין 43 | PB11 — GPIO / SERCOM4.3 / ADC0 |
| פין 44 | PB12 — GPIO / SERCOM4.0 |
| פין 45 | PB13 — GPIO / SERCOM4.1 |
| פין 46 | PB14 — GPIO / SERCOM4.2 |
| פין 47 | PB15 — GPIO / SERCOM4.3 |
| פין 48 | PB16 — GPIO / SERCOM5.0 |
| פין 49 | PB17 — GPIO / SERCOM5.1 |
| פין 50 | PB18 — GPIO / SERCOM5.2 |
| פין 51 | PB19 — GPIO / SERCOM5.3 |
| פין 52 | PB20 — GPIO / SERCOM3.0 |
| פין 53 | PB21 — GPIO / SERCOM3.1 |
| פין 54 | PB22 — GPIO / SERCOM3.2 |
| פין 55 | PB23 — GPIO / SERCOM3.3 |
| פין 56 | PB24 — GPIO / SERCOM0.0 / CAN0_TX |
| פין 57 | PB25 — GPIO / SERCOM0.1 / CAN0_RX |
| פין 58 | VDDIO — I/O Supply Voltage |
| פין 59 | GND — Ground |
| פין 60 | VDD — Core Supply Voltage |
| פין 61 | VSW — Switching Regulator Output |
| פין 62 | VDDIO — I/O Supply Voltage |
| פין 63 | RESET_N — Reset (active low) |
| פין 64 | GND — Ground (Thermal Pad) |
יישומים טיפוסיים
ATSAME51J19A-MFT מתאים עבור 6 יישוםs: Industrial Automation Controllers, Building Automation Gateways, USB-Connected Sensor Hubs, Automotive Body Electronics, Consumer IoT Edge Nodes, Test and Measurement Instruments.
Industrial Automation Controllers
The ATSAME51J19A-MFT's 120 MHz Cortex-M4F with FPU executes real-time control loops for PLCs and motor drives with sub-microsecond latency. Its 1 MSPS ADC samples three-phase current and voltage feedback at 50 kHz PWM rates, while the CAN-FD port links to industrial sensor networks and distributed I/O backplanes. The 512 KB Dual-Panel Flash enables live firmware updates without halting operation, critical for continuous-process plants.
מומלץ
Building Automation Gateways
Building automation gateways benefit from the ATSAME51J19A-MFT's Ethernet MAC and USB Host for connecting to BACnet, Modbus, and KNX fieldbus segments. The 192 KB SRAM accommodates TCP/IP stacks and message buffers for multi-protocol bridging, while SERCOM ports handle UART-based sensor clusters. Industrial -40C to +125C operation ensures reliability in unconditioned mechanical rooms.
מומלץ
USB-Connected Sensor Hubs
The ATSAME51J19A-MFT integrates a USB 2.0 Full-Speed Device/Host controller with on-chip transceiver, eliminating external PHY components for USB sensor hubs. At 120 MHz, the Cortex-M4F can aggregate data from 10+ sensors via SERCOM (I2C/SPI) and stream processed telemetry over USB at 12 Mbps. The internal 3.3V USB regulator simplifies bus-powered designs.
מומלץ
Automotive Body Electronics
The CAN-FD controller makes the ATSAME51J19A-MFT suitable for body control modules, lighting controllers, and HVAC panels communicating at 2 Mbps on modern vehicle networks. The 120 MHz FPU executes sensor fusion for ambient light and climate control while maintaining headroom for LIN/SERCOM secondary networks. The 64-pin QFN provides compact mounting for space-constrained dashboards.
מומלץ
Consumer IoT Edge Nodes
Battery-friendly edge nodes leverage the ATSAME51J19A-MFT's SERCOM, ADC, and low-power sleep modes for always-on IoT devices. The Cortex-M4F processes sensor data locally before waking the radio, reducing average power by 10x compared to cloud-only architectures. USB-C charging support and 512 KB Flash accommodate over-the-air update payloads.
מומלץ
Test and Measurement Instruments
Portable test instruments use the ATSAME51J19A-MFT's 1 MSPS ADC for high-bandwidth signal acquisition and the Cortex-M4F for real-time DSP filtering. USB Full-Speed delivers 1 MSa/s data streams to host PCs, while 192 KB SRAM buffers capture windows up to 50 ms. The industrial temperature range supports field-deployed calibration equipment.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור ATSAME51J19A-MFT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | ATSAME51J18A-MFT | ATSAME51G19A-MFT | ATSAMD51J20A-MFT | ATSAMD51J19A-MF |
|---|---|---|---|---|---|
| Package | 64-pin QFN (9x9 mm) | 64-pin QFN (9x9 mm) - same | 64-pin QFN (9x9 mm) - same | 64-pin QFN (9x9 mm) - same | 64-pin QFN (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz |
| Flash Memory | 512 KB | 256 KB | 512 KB | 1 MB | 512 KB |
| SRAM | 192 KB | 192 KB | 64 KB | 256 KB | 192 KB |
| CAN-FD | Yes | Yes | Yes | No | No |
| USB | 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 |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
מבדילים עיקריים
- Integrated CAN-FD controller on a Cortex-M4F MCU (לעומתATSAMD51J19A-MF)
- Doubled SRAM vs E51G19A variant (לעומתATSAME51G19A-MFT)
- Dual-Panel Flash for live firmware updates (לעומתATSAME51J18A-MFT)
הערות תכנון
The 64-pin QFN package uses an exposed thermal pad that MUST be soldered to a top-layer copper pour of at least 25 mm x 25 mm for proper heat dissipation. Without this, junction temperature can rise 15-20 C above ambient at full 120 MHz operation. Multiple thermal vias under the pad (0.3 mm drill, 0.6 mm pitch) provide low-impedance thermal paths to inner ground planes.
Place 100 nF decoupling capacitors within 2 mm of each VDDIO pin and a single 4.7 uF bulk capacitor near the package. The internal switching regulator (VSW pin) requires an external 4.7 uH inductor and 4.7 uF output capacitor. Estimated: at 120 MHz active and 3.3V supply, core current draw is approximately 25 mA, with peaks to 40 mA during peripheral activity.
When migrating from SAMD51 to SAME51, verify your firmware does not reference CAN0 registers on the D51 (which lacks CAN-FD). The boot ROM on SAME51 expects the crystal or DFLL to be stable within 10 ms of VDD rise; if not, the device enters a slow-clock fallback. Also note that SERCOM5 pins PA24/PA25 are shared with USB D+/D- and must be configured carefully for USB applications.
Keep the USB DP/DM traces on ATSAME51J19A-MFT to 50 ohms differential impedance and match lengths within 2 mm. Route them on the top layer over a continuous ground plane without vias. The CAN TX/RX lines should also be 50 ohm controlled impedance if traces exceed 25 mm. Place the 12 MHz crystal within 5 mm of XIN/XOUT pins with grounded guard traces.
מידע על תאימות
RoHS compliant per Microchip product page. Extended industrial temperature -40C to +125C. Not AEC-Q100 qualified - choose ATSAME51J19A-AUT for automotive applications.
