ATSAME51J19A-MFT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
料号： ATSAME51J19A-MFT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.42 | $9.42 |
| 10 | $8.52 | $85.20 |
| 100 | $7.34 | $734.00 |
| 500 | $6.45 | $3,225.00 |
| 1,000 | $5.78 | $5,780.00 |
ATSAME51J19A-MFT 概述
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.
直接替换替代料： ATSAME51J19A-MFT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATSAME51J19A-MFT （相同外形与封装尺寸） ——差异在于 Package, ADC, SRAM, USB, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
ATSAME51J18A-MFT
✅ 直接替换✓ 有现货
$4.15 / 个
ATSAME51G19A-MFT
✅ 直接替换✓ 有现货
$3.95 / 个
查看数据手册 →ATSAME51G18A-MFT
✅ 直接替换✓ 有现货
$3.95 / 个
查看数据手册 →ATSAMD51J20A-MFT
✅ 直接替换✓ 有现货
$5.1 / 个
查看数据手册 →ATSAMD51J19A-MF
✅ 直接替换✓ 有现货
$5.4 / 个
查看数据手册 →ATSAME51J19A-MFT 最大额定值与电气特性
| 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 |
| 封装 | 64-pin QFN (9x9 mm) |
| 工作温度 | -40C to +125C (Extended Industrial) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
ATSAME51J19A-MFT 引脚配置
| 引脚 1 | PA00 — GPIO / SERCOM1.0 / ADC0 |
| 引脚 2 | PA01 — GPIO / SERCOM1.1 / ADC0 |
| 引脚 3 | PA02 — GPIO / SERCOM2.0 / ADC0 |
| 引脚 4 | PA03 — GPIO / SERCOM2.1 / ADC0 |
| 引脚 5 | PA04 — GPIO / SERCOM0.0 / ADC0 |
| 引脚 6 | PA05 — GPIO / SERCOM0.1 / ADC0 |
| 引脚 7 | PA06 — GPIO / SERCOM0.2 / ADC0 |
| 引脚 8 | PA07 — GPIO / SERCOM0.3 / ADC0 |
| 引脚 9 | VDDIO — I/O Supply Voltage |
| 引脚 10 | GND — Ground |
| 引脚 11 | PA08 — GPIO / SERCOM2.0 / ADC0 |
| 引脚 12 | PA09 — GPIO / SERCOM2.1 / ADC0 |
| 引脚 13 | PA10 — GPIO / SERCOM2.2 / ADC0 |
| 引脚 14 | PA11 — GPIO / SERCOM2.3 / ADC0 |
| 引脚 15 | VDDIO — I/O Supply Voltage |
| 引脚 16 | PA12 — GPIO / SERCOM4.0 |
| 引脚 17 | PA13 — GPIO / SERCOM4.1 |
| 引脚 18 | PA14 — GPIO / SERCOM4.2 |
| 引脚 19 | PA15 — GPIO / SERCOM4.3 |
| 引脚 20 | PA16 — GPIO / SERCOM1.0 / I2S |
| 引脚 21 | PA17 — GPIO / SERCOM1.1 / I2S |
| 引脚 22 | PA18 — GPIO / SERCOM1.2 / I2S |
| 引脚 23 | PA19 — GPIO / SERCOM1.3 / I2S |
| 引脚 24 | PA20 — GPIO / SERCOM3.0 |
| 引脚 25 | PA21 — GPIO / SERCOM3.1 |
| 引脚 26 | PA22 — GPIO / SERCOM3.2 |
| 引脚 27 | PA23 — GPIO / SERCOM3.3 |
| 引脚 28 | PA24 — GPIO / SERCOM5.2 / USB_DM |
| 引脚 29 | PA25 — GPIO / SERCOM5.3 / USB_DP |
| 引脚 30 | GND — Ground |
| 引脚 31 | VDDIO — I/O Supply Voltage |
| 引脚 32 | PB00 — GPIO / SERCOM5.0 |
| 引脚 33 | PB01 — GPIO / SERCOM5.1 |
| 引脚 34 | PB02 — GPIO / SERCOM5.2 |
| 引脚 35 | PB03 — GPIO / SERCOM5.3 |
| 引脚 36 | PB04 — GPIO / SERCOM3.0 |
| 引脚 37 | PB05 — GPIO / SERCOM3.1 |
| 引脚 38 | PB06 — GPIO / SERCOM3.2 |
| 引脚 39 | PB07 — GPIO / SERCOM3.3 |
| 引脚 40 | PB08 — GPIO / SERCOM4.0 / ADC0 |
| 引脚 41 | PB09 — GPIO / SERCOM4.1 / ADC0 |
| 引脚 42 | PB10 — GPIO / SERCOM4.2 / ADC0 |
| 引脚 43 | PB11 — GPIO / SERCOM4.3 / ADC0 |
| 引脚 44 | PB12 — GPIO / SERCOM4.0 |
| 引脚 45 | PB13 — GPIO / SERCOM4.1 |
| 引脚 46 | PB14 — GPIO / SERCOM4.2 |
| 引脚 47 | PB15 — GPIO / SERCOM4.3 |
| 引脚 48 | PB16 — GPIO / SERCOM5.0 |
| 引脚 49 | PB17 — GPIO / SERCOM5.1 |
| 引脚 50 | PB18 — GPIO / SERCOM5.2 |
| 引脚 51 | PB19 — GPIO / SERCOM5.3 |
| 引脚 52 | PB20 — GPIO / SERCOM3.0 |
| 引脚 53 | PB21 — GPIO / SERCOM3.1 |
| 引脚 54 | PB22 — GPIO / SERCOM3.2 |
| 引脚 55 | PB23 — GPIO / SERCOM3.3 |
| 引脚 56 | PB24 — GPIO / SERCOM0.0 / CAN0_TX |
| 引脚 57 | PB25 — GPIO / SERCOM0.1 / CAN0_RX |
| 引脚 58 | VDDIO — I/O Supply Voltage |
| 引脚 59 | GND — Ground |
| 引脚 60 | VDD — Core Supply Voltage |
| 引脚 61 | VSW — Switching Regulator Output |
| 引脚 62 | VDDIO — I/O Supply Voltage |
| 引脚 63 | RESET_N — Reset (active low) |
| 引脚 64 | GND — Ground (Thermal Pad) |
典型应用
ATSAME51J19A-MFT 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： ATSAME51J19A-MFT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Integrated CAN-FD controller on a Cortex-M4F MCU （对比 ATSAMD51J19A-MF)
- Doubled SRAM vs E51G19A variant （对比 ATSAME51G19A-MFT)
- Dual-Panel Flash for live firmware updates （对比 ATSAME51J18A-MFT)
设计说明
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.
合规信息
RoHS compliant per Microchip product page. Extended industrial temperature -40C to +125C. Not AEC-Q100 qualified - choose ATSAME51J19A-AUT for automotive applications.
