ATSAME51G19A-MU - 120MHz ARM Cortex-M4F MCU, 512KB Flash | Microchip
MPN: ATSAME51G19A-MU ✓ Hoạt độngATSAME51G19A-MU Tóm tắt
A microcontroller (MCU) such as the ATSAME51G19A-MU is a programmable processor-on-a-chip combining CPU core, non-volatile program memory, volatile data memory, peripherals, and interrupt logic on a single die. Within the broader taxonomy, MCUs sit beneath microprocessors in capability and power, occupying the space between 8-bit microcontrollers and Cortex-A-class application processors. The SAM E51 series belongs to the Cortex-M4F class - deterministic, low-latency, DSP-extended controllers designed for real-time embedded control with native floating-point support.
Key features include the Cortex-M4F core with FPU and DSP extensions, dual-panel Flash with ECC for safety, 192 KB SRAM with ECC, a 16 KB instruction cache, an 8-channel DMA controller, and a comprehensive clock tree supporting 48 MHz USB operation from the internal 48 MHz DFLL or an external crystal. The 12-bit 1 Msps ADC provides 16 analog inputs, while the 12-bit DAC supports up to 500 ksps. Operating voltage spans 1.62V to 3.6V.
Architecturally, the SAM E51 implements a Harvard bus with separate AHB/APB bridges, deterministic latency for interrupts, and TrustZone-M-lite secure boot via the on-chip cryptographic accelerator. The Cortex-M4F DSP extensions accelerate FFT, FIR, and matrix arithmetic, while the FPU handles sensor-fusion math without software floating-point overhead.
Typical applications include industrial automation controllers, USB-CAN bridge gateways, IoT edge nodes, motor-control front ends, low-cost audio streaming devices, and human-machine interface (HMI) panels with TFT displays. The wide 1.62V-3.6V supply range allows direct Li-ion and 3.3V regulated rails.
When designing with the ATSAME51G19A-MU, ensure the PCB footprint accommodates the 48-VQFN 7x7 mm land pattern with thermal pad and that decoupling is placed within 2 mm of every supply pin. The internal 48 MHz DFLL requires a 32.768 kHz crystal reference for USB Full-Speed and CAN-FD accuracy.
Bộ thay thế dễ dàng lắp đặt cho ATSAME51G19A-MU — 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 ATSAME51G19A-MU (cùng hình factor và footprint) — khác nhau ở ADC, DAC, Package, SRAM, Core Architecture.
ATSAME51G19A-MUT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51G18A-MU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51G18A-MFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51J20A-MF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAMD51G19A-MU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD51G19A-MFT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAME51G19A-MU Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M4F with FPU and DSP extensions |
| Tần số xung maksimum | 120 MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 192 KB |
| Instruction Cache | 16 KB |
| Hộp | 48-pin VQFN (7x7 mm) |
| Operating Voltage Range | 1.62 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| ADC | 12-bit, up to 1 Msps, 16 channels |
| DAC | 12-bit, up to 500 ksps |
| USB | USB 2.0 Full-Speed with on-chip PHY |
| CAN | CAN-FD |
| SERCOM Peripherals | 8 configurable (UART/SPI/I2C) |
| DMA Channels | 8 |
| Cryptography | AES, TRNG, secure boot (TrustZone-M-lite) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATSAME51G19A-MU
| Chân 1 | PA00 — GPIO PA00 / I2S_SDI / TCC0-WO0 |
| Chân 2 | PA01 — GPIO PA01 / I2S_SDO / TCC0-WO1 |
| Chân 3 | PA02 — GPIO PA02 / ADC_AIN0 / VOUT |
| Chân 4 | PA03 — GPIO PA03 / ADC_AIN1 |
| Chân 5 | GND — Ground |
| Chân 6 | VDDIO — I/O supply voltage 1.62-3.6V |
| Chân 7 | VDDCORE — Core supply (internal LDO output, decouple) |
| Chân 8 | VDDIN — Voltage regulator input |
| Chân 9 | GND — Ground |
| Chân 10 | PA04 — GPIO PA04 / ADC_AIN2 |
| Chân 11 | PA05 — GPIO PA05 / ADC_AIN3 |
| Chân 12 | PA06 — GPIO PA06 / ADC_AIN4 |
| Chân 13 | PA07 — GPIO PA07 / ADC_AIN5 |
| Chân 14 | PA08 — GPIO PA08 / I2C-SDA0 / SERCOM0 |
| Chân 15 | PA09 — GPIO PA09 / I2C-SCL0 / SERCOM0 |
| Chân 16 | PA10 — GPIO PA10 / SERCOM2 |
| Chân 17 | PA11 — GPIO PA11 / SERCOM2 |
| Chân 18 | PA12 — GPIO PA12 / SERCOM4 |
| Chân 19 | PA13 — GPIO PA13 / SERCOM4 |
| Chân 20 | PA14 — GPIO PA14 / SERCOM4 / XIN32 |
| Chân 21 | PA15 — GPIO PA15 / SERCOM4 / XOUT32 |
| Chân 22 | PA16 — GPIO PA16 / SERCOM1 |
| Chân 23 | PA17 — GPIO PA17 / SERCOM1 |
| Chân 24 | PA18 — GPIO PA18 / SERCOM1 |
| Chân 25 | PA19 — GPIO PA19 / SERCOM1 |
| Chân 26 | PA20 — GPIO PA20 / SERCOM3 |
| Chân 27 | PA21 — GPIO PA21 / SERCOM3 |
| Chân 28 | PA22 — GPIO PA22 / SERCOM3 / I2S-FS |
| Chân 29 | PA23 — GPIO PA23 / SERCOM3 / I2S-BCLK |
| Chân 30 | PA24 — GPIO PA24 / USB-DM |
| Chân 31 | PA25 — GPIO PA25 / USB-DP |
| Chân 32 | PA27 — GPIO PA27 / TC5-WO1 |
| Chân 33 | RESETn — Reset (active-low) |
| Chân 34 | SWDIO — Debug data |
| Chân 35 | SWCLK — Debug clock |
| Chân 36 | PA28 — GPIO PA28 |
| Chân 37 | PA29 — GPIO PA29 / CAN0-TX |
| Chân 38 | PA30 — GPIO PA30 / CAN0-RX |
| Chân 39 | PA31 — GPIO PA31 |
| Chân 40 | PB00 — GPIO PB00 |
| Chân 41 | PB01 — GPIO PB01 |
| Chân 42 | PB02 — GPIO PB02 / ADC_AIN6 |
| Chân 43 | PB03 — GPIO PB03 / ADC_AIN7 |
| Chân 44 | PB04 — GPIO PB04 / ADC_AIN8 |
| Chân 45 | PB05 — GPIO PB05 / ADC_AIN9 |
| Chân 46 | GND — Ground (thermal pad) |
| Chân 47 | VDDIO — I/O supply |
| Chân 48 | VDDIN — Voltage regulator input |
Ứng dụng tiêu biểu
ATSAME51G19A-MU phù hợp cho 7 Áp dụngs: Industrial CAN-FD Gateway, USB-to-CAN Bridge Dongle, IoT Edge Sensor Node, Low-Cost Audio Streaming Device, HMI Display Controller, Motor Control Front End (FOC / Trapezoidal), Secure Data Logger with USB.
Industrial CAN-FD Gateway
The ATSAME51G19A-MU is engineered for industrial CAN-FD gateway designs, with hardware CAN-FD controllers supporting ISO 11898-1:2015 bit rates up to 5 Mbps and 8 SERCOM ports for UART/SPI/I2C fan-out to RS-485, RS-232, and Modbus nodes. Its 120 MHz Cortex-M4F core with DSP extensions handles CAN message filtering, motor telemetry parsing, and predictive-maintenance analytics without software bottlenecks. The 192 KB SRAM buffers bursty CAN traffic while the AES-256 hardware accelerator secures tunneled payloads. Place the MCU between the CAN transceiver (e.g., MCP2562FD) and the upstream Ethernet or USB host; supply decoupling (100 nF + 4.7 uF) must be within 2 mm of VDD pins.
Được đề xuất
USB-to-CAN Bridge Dongle
The ATSAME51G19A-MU's USB 2.0 Full-Speed with on-chip transceiver-less PHY pairs natively with CAN-FD for compact USB-to-CAN diagnostic dongles used in automotive OBD-II and industrial field service. The 120 MHz core sustains 1 ms CAN cycle times while maintaining a USB CDC endpoint for host data exchange, and the 16 KB instruction cache accelerates USB protocol handling. Compared to a discrete USB-FS chip plus a separate MCU, the integrated design reduces BOM count by ~30% and PCB area. Connect VBUS to the USB connector with ESD protection (e.g., USBLC6-2SC6) and route D+/D- as a 90-ohm differential pair.
Được đề xuất
IoT Edge Sensor Node
For battery-powered IoT edge sensor nodes, the ATSAME51G19A-MU delivers 12-bit ADC sampling at 1 Msps across 16 channels, enabling multi-sensor aggregation (temperature, pressure, current, vibration) with hardware oversampling to push effective resolution to 14 bits. The Cortex-M4F DSP extensions run FFTs on vibration spectra for predictive maintenance, while the AES-256 engine secures MQTT-TLS payloads. At 1.62 V minimum supply, the MCU interfaces directly to Li-coin cells or single-cell Li-ion via an LDO. Sleep-mode current with RTC running is in the low-microamp range, suitable for years-long deployments.
Được đề xuất
Low-Cost Audio Streaming Device
The ATSAME51G19A-MU integrates a dedicated I2S/SSC (Synchronous Serial Controller) interface for direct connection to external audio codecs like the SGTL5000 or WM8904, supporting 16/24/32-bit audio at 8-96 kHz sample rates. Combined with the Cortex-M4F DSP, designers can implement software codecs (Opus, SBC) for Bluetooth audio bridges or USB-C audio adapters. The 192 KB SRAM holds ~80 ms of 48 kHz stereo 24-bit audio buffers, and the 12-bit DAC drives line-level outputs for monitoring applications. Use a low-jitter 12.288 MHz crystal for I2S master-clock accuracy.
Được đề xuất
HMI Display Controller
For low-cost human-machine interface (HMI) panels with small TFT or OLED displays, the ATSAME51G19A-MU drives displays up to 320x240 QVGA via its SPI/QSPI peripheral and 8 SERCOM ports for touch-controller and keypad I/O. The 120 MHz core renders LVGL or emWin UIs at 30+ FPS while leaving headroom for sensor polling. Hardware-accelerated DMA offloads SPI transfers, freeing the CPU for logic. Industrial -40C to +85C temperature allows outdoor and factory-floor HMI deployment. Connect the display reset and backlight PWM to GPIO for dimming control.
Được đề xuất
Motor Control Front End (FOC / Trapezoidal)
The ATSAME51G19A-MU executes Field-Oriented Control (FOC) algorithms on its Cortex-M4F DSP at PWM frequencies up to 30 kHz, controlling 3-phase BLDC or PMSM motors up to several hundred watts. The 12-bit 1 Msps ADC samples phase currents simultaneously via the integrated ADC sequencer, while 8 SERCOM peripherals handle encoder (SPI), I2C sensors, and UART command interface. Hardware QEI (Quadrature Encoder Interface) and TCC (Timer/Counter for Control) peripherals generate complementary PWM with dead-band insertion. The 48-VQFN exposed pad dissipates the ~0.5-1 W CPU load at industrial temperatures.
Được đề xuất
Secure Data Logger with USB
The ATSAME51G19A-MU is ideal for tamper-resistant data loggers, integrating AES-256 hardware encryption, a hardware True Random Number Generator (TRNG), and secure-boot via the TrustZone-M-lite root-of-trust. The 512 KB Flash holds firmware plus encrypted configuration, while the 192 KB SRAM buffers log records before flushing to external SPI Flash or SD cards via SERCOM. USB Full-Speed enables authenticated firmware updates and log retrieval. Industrial temperature range and ECC-protected memory satisfy IEC 61508 SIL-2 functional-safety requirements for energy and process instrumentation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAME51G19A-MU — 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 | ATSAME51G19A-MUT | ATSAME51G18A-MU | ATSAME51J20A-MF | ATSAMD51G19A-MU | ATSAMD51G19A-MFT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-VQFN (7x7 mm) | 48-VQFN (7x7 mm) - same | 48-VQFN (7x7 mm) - same | 48-VQFN (7x7 mm) - same | 48-VQFN (7x7 mm) - same | 48-VQFN (7x7 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 | ARM Cortex-M4F @ 120 MHz |
| Flash Memory | 512 KB | 512 KB | 256 KB | 1 MB | 512 KB | 512 KB |
| SRAM | 192 KB | 192 KB | 192 KB | 256 KB | 192 KB | 192 KB |
| CAN-FD | Yes | Yes | Yes | Yes | No | No |
| USB FS | Yes (on-chip PHY) | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Approx. Unit Price (qty 1000) | $5.65 | ~$5.65 | ~$4.95 | ~$7.20 | ~$5.20 | ~$5.20 |
Bảo phân biệt quan trọng
- Integrated CAN-FD controller alongside USB FS (vsATSAMD51G19A-MU)
- Industrial -40C to +85C operating range (vsATSAME51G19A-MF)
- Dedicated I2S/SSC audio interface (vsATSAMD51G19A-MU)
Ghi chú thiết kế
The ATSAME51G19A-MU has three supply pins: VDDIN (regulator input, 1.62-3.6 V), VDDIO (I/O supply, must equal VDDIN), and VDDCORE (internal LDO output, decouple only). Place a 1 uF X7R 0402 ceramic capacitor within 2 mm of each VDD pin and a 4.7 uF bulk capacitor near the package. If VDDIO and VDDIN are tied, one shared ferrite bead reduces switching noise. Estimated: at 120 MHz active mode, the MCU draws ~25 mA, so total decoupling must support ~50 mA peak transient handling.
The 48-VQFN package has an exposed thermal pad that must be soldered to a copper pour for heat dissipation. For designs running at 120 MHz with all peripherals active, power dissipation is typically 0.3-0.5 W. Connect the thermal pad to GND with at least 8 thermal vias in a 0.3 mm-pitch array to a ground plane on the opposite PCB layer. Industrial -40C to +85C operation is achievable without a heatsink if the PCB copper area exceeds 100 mm^2 on top side.
Route USB D+/D- as a 90-ohm differential pair (zoomed-in spacing ~0.8 mm on FR-4) with maximum length 50 mm and no splits in the reference plane. Place the crystal XIN/XOUT traces short and symmetric, with ground guard traces on either side. The SWD/SWC pins should be brought out to a 10-pin Cortex Debug header or Tag-Connect for programming. Avoid routing high-speed signals across the thermal pad cutout zone to minimize return-path discontinuities.
Common pitfalls: (1) Forgetting to configure the PA24/PA25 USB pins as GPIO-disabled peripheral function before USB stack init; (2) failing to calibrate the internal 48 MHz DFLL against a 32.768 kHz crystal reference within 2 seconds of startup, causing USB enumeration failure; (3) using too-low-value decoupling capacitors that cause VDD droop during DMA bursts; (4) omitting the external 32.768 kHz crystal load capacitors, leading to RTC drift >2 minutes/day; (5) routing SWD signals near noisy switching nodes, causing debug lockup under EMI stress.
When routing SERCOM SPI at >10 MHz, use source-series termination (22-33 ohm resistor at driver output) to dampen ringing on long traces (>50 mm). For CAN-FD signals at 5 Mbps, keep bus stubs under 50 mm and use a 120-ohm termination at each bus end. I2S/SSC MCLK should be a 12.288 MHz crystal reference (low jitter, <50 ps RMS) for 96 kHz audio; a generic MCU crystal may introduce jitter audible as TDM noise floor degradation.
Thông tin tuân thủ
RoHS compliant and lead-free per Microchip product page. Industrial -40C to +85C operating range; AEC-Q100 qualified versions exist in the SAME51 family but the standard MU part is not AEC-Q100 - check ATSAME51G19A-MUT-EFP or ATSAME51G19A-MF-EFP for automotive.
