ATSAME51G19A-MU - 120MHz ARM Cortex-M4F MCU, 512KB Flash | Microchip
Référence : ATSAME51G19A-MU ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $8.99 | $8,99 |
| 10 | $8.1 | $81,00 |
| 100 | $7.2 | $720,00 |
| 500 | $6.4 | $3 200,00 |
| 1 000 | $5.65 | $5 650,00 |
ATSAME51G19A-MU Présentation
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.
Alternatives de remplacement direct pour ATSAME51G19A-MU — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATSAME51G19A-MU (même facteur de forme et même empreinte) — différant par ADC, DAC, Package, SRAM, Core Architecture.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAME51G19A-MUT
✅ Remplacement direct✓ En stock
$5.04 / unité
Voir la fiche technique →ATSAME51G18A-MU
✅ Remplacement direct✓ En stock
$4.35 / unité
Voir la fiche technique →ATSAME51G18A-MFT
✅ Remplacement direct✓ En stock
$3.95 / unité
Voir la fiche technique →ATSAME51J20A-MF
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAMD51G19A-MU
✅ Remplacement direct✓ En stock
$5.4 / unité
Voir la fiche technique →ATSAMD51G19A-MFT
✅ Remplacement direct✓ En stock
$4.02 / unité
Voir la fiche technique →ATSAME51G19A-MU Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M4F with FPU and DSP extensions |
| Fréquence d'horloge maximale | 120 MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 192 KB |
| Instruction Cache | 16 KB |
| Boîtier | 48-pin VQFN (7x7 mm) |
| Operating Voltage Range | 1.62 V to 3.6 V |
| Plage de température de fonctionnement | -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) |
| Type de montage | Surface Mount |
| Niveau MSL | 3 (168 hours) |
| Statut RoHS | Compliant |
Configuration des broches de ATSAME51G19A-MU
| Broche 1 | PA00 — GPIO PA00 / I2S_SDI / TCC0-WO0 |
| Broche 2 | PA01 — GPIO PA01 / I2S_SDO / TCC0-WO1 |
| Broche 3 | PA02 — GPIO PA02 / ADC_AIN0 / VOUT |
| Broche 4 | PA03 — GPIO PA03 / ADC_AIN1 |
| Broche 5 | GND — Ground |
| Broche 6 | VDDIO — I/O supply voltage 1.62-3.6V |
| Broche 7 | VDDCORE — Core supply (internal LDO output, decouple) |
| Broche 8 | VDDIN — Voltage regulator input |
| Broche 9 | GND — Ground |
| Broche 10 | PA04 — GPIO PA04 / ADC_AIN2 |
| Broche 11 | PA05 — GPIO PA05 / ADC_AIN3 |
| Broche 12 | PA06 — GPIO PA06 / ADC_AIN4 |
| Broche 13 | PA07 — GPIO PA07 / ADC_AIN5 |
| Broche 14 | PA08 — GPIO PA08 / I2C-SDA0 / SERCOM0 |
| Broche 15 | PA09 — GPIO PA09 / I2C-SCL0 / SERCOM0 |
| Broche 16 | PA10 — GPIO PA10 / SERCOM2 |
| Broche 17 | PA11 — GPIO PA11 / SERCOM2 |
| Broche 18 | PA12 — GPIO PA12 / SERCOM4 |
| Broche 19 | PA13 — GPIO PA13 / SERCOM4 |
| Broche 20 | PA14 — GPIO PA14 / SERCOM4 / XIN32 |
| Broche 21 | PA15 — GPIO PA15 / SERCOM4 / XOUT32 |
| Broche 22 | PA16 — GPIO PA16 / SERCOM1 |
| Broche 23 | PA17 — GPIO PA17 / SERCOM1 |
| Broche 24 | PA18 — GPIO PA18 / SERCOM1 |
| Broche 25 | PA19 — GPIO PA19 / SERCOM1 |
| Broche 26 | PA20 — GPIO PA20 / SERCOM3 |
| Broche 27 | PA21 — GPIO PA21 / SERCOM3 |
| Broche 28 | PA22 — GPIO PA22 / SERCOM3 / I2S-FS |
| Broche 29 | PA23 — GPIO PA23 / SERCOM3 / I2S-BCLK |
| Broche 30 | PA24 — GPIO PA24 / USB-DM |
| Broche 31 | PA25 — GPIO PA25 / USB-DP |
| Broche 32 | PA27 — GPIO PA27 / TC5-WO1 |
| Broche 33 | RESETn — Reset (active-low) |
| Broche 34 | SWDIO — Debug data |
| Broche 35 | SWCLK — Debug clock |
| Broche 36 | PA28 — GPIO PA28 |
| Broche 37 | PA29 — GPIO PA29 / CAN0-TX |
| Broche 38 | PA30 — GPIO PA30 / CAN0-RX |
| Broche 39 | PA31 — GPIO PA31 |
| Broche 40 | PB00 — GPIO PB00 |
| Broche 41 | PB01 — GPIO PB01 |
| Broche 42 | PB02 — GPIO PB02 / ADC_AIN6 |
| Broche 43 | PB03 — GPIO PB03 / ADC_AIN7 |
| Broche 44 | PB04 — GPIO PB04 / ADC_AIN8 |
| Broche 45 | PB05 — GPIO PB05 / ADC_AIN9 |
| Broche 46 | GND — Ground (thermal pad) |
| Broche 47 | VDDIO — I/O supply |
| Broche 48 | VDDIN — Voltage regulator input |
Applications typiques
ATSAME51G19A-MU convient pour 7 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAME51G19A-MU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Integrated CAN-FD controller alongside USB FS (vs ATSAMD51G19A-MU)
- Industrial -40C to +85C operating range (vs ATSAME51G19A-MF)
- Dedicated I2S/SSC audio interface (vs ATSAMD51G19A-MU)
Notes de conception
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.
Informations de conformité
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.
