ATSAMD51N19A-AU-EFP - 120MHz Cortex-M4F MCU 512KB Flash | Microchip
Référence : ATSAMD51N19A-AU-EFP ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $8.62 | $8,62 |
| 10 | $7.74 | $77,40 |
| 100 | $6.18 | $618,00 |
| 500 | $5.42 | $2 710,00 |
| 1 000 | $4.85 | $4 850,00 |
ATSAMD51N19A-AU-EFP Présentation
What is a Cortex-M4F microcontroller? An MCU (microcontroller unit) is a single-chip computer integrating a CPU core, memory, and peripherals. The Cortex-M4F is ARM's processor core with hardware floating-point and DSP extensions, widely used in industrial control, IoT edge nodes, and motor/lighting applications. MCUs sit within the semiconductor hierarchy as integrated circuits, below the system level but above discrete logic in design abstraction.
Key features include a 120 MHz maximum CPU clock, hardware FPU for single-precision float operations, 512 KB Flash with ECC for reliability, 192 KB SRAM with ECC, and a full-speed USB 2.0 interface with integrated PHY. The device integrates a 12-bit 1 MSPS ADC, SERCOM configurable serial communication, I2S audio interface, and a Cryptographic Accelerator (TRNG, AES, SHA) for secure applications. The Extended Flash Performance (EFP) variant is rated for sustained high-throughput flash reads at full CPU speed.
Architecturally, the SAM D51 uses a Cortex-M4F core with single-cycle DSP and SIMD instructions, a 4 KB combined instruction/data cache, and a low-power architecture with multiple sleep modes (IDLE, STANDBY, BACKUP). The dual-panel flash supports live updates, while ECC across flash and SRAM detects single-bit errors and corrects them transparently, making the part suitable for industrial safety and long-lifecycle products.
Typical applications include industrial automation controllers, smart home and IoT gateways, USB peripherals, audio processing, motor control with FOC, and human-machine interface (HMI) panels with TFT displays. The integrated USB PHY and rich SERCOM channels allow direct USB device/host/OTG connectivity without an external transceiver.
When designing with this device, ensure the 100-pin TQFP PCB layout provides adequate thermal dissipation. Decouple VDDIO and VDDIN with 100 nF ceramic capacitors placed within 3 mm of each supply pin, and route the USB D+/D- differential pair with 90-ohm impedance to maintain signal integrity.
This page synthesizes distributor pricing from DigiKey, Mouser and LCSC, cross-references drop-in alternatives from the same SAM D51 family, and provides practical design notes not found in the manufacturer datasheet summary.
Alternatives de remplacement direct pour ATSAMD51N19A-AU-EFP — 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 ATSAMD51N19A-AU-EFP (même facteur de forme et même empreinte) — différant par Package, ADC, Operating Temperature, USB, SRAM.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAMD51N19A-AUT-EFP
✅ Remplacement direct✓ En stock
$3.65 / unité
Voir la fiche technique →ATSAMD51N20A-AU-EFP
✅ Remplacement direct✓ En stock
$9.42 / unité
Voir la fiche technique →ATSAMD51N18A-AU-EFP
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
ATSAMD51P19A-AU-EFP
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$5.88 / unité
Voir la fiche technique →ATSAMD51J19A-AUT-EFP
✅ Remplacement direct✓ En stock
$4.45 / unité
Voir la fiche technique →ATSAMD51N19A-AU-EFP Valeurs maximales et caractéristiques électriques
| Core Architecture | ARM Cortex-M4F (32-bit) with FPU and DSP |
| Maximum CPU Clock | 120 MHz |
| Flash Memory | 512 KB (512K x 8) Dual Panel Flash with ECC |
| SRAM | 192 KB with ECC |
| Operating Voltage | 1.71 V to 3.6 V |
| Température de fonctionnement | -40 C to +85 C (Industrial) |
| Boîtier | 100-pin TQFP (14x14 mm) |
| Type de montage | Surface Mount |
| USB Interface | USB 2.0 Full-Speed with integrated PHY |
| ADC | 12-bit, up to 1 MSPS |
| Communication Interfaces | SERCOM (UART/SPI/I2C), I2S, CAN-FD |
| Cryptographic Accelerator | AES, SHA, TRNG (True Random Number Generator) |
| Statut RoHS | Compliant |
| Lead-Free | Yes |
| Packaging Type | Tray |
Configuration des broches de ATSAMD51N19A-AU-EFP
| Broche 1 | VDDIO — Digital I/O supply voltage |
| Broche 2 | PA00 — GPIO / SERCOM1.0 / XIN |
| Broche 3 | PA01 — GPIO / SERCOM1.1 / XOUT |
| Broche 4 | PA02 — GPIO / SERCOM1.2 / AIN0 |
| Broche 5 | PA03 — GPIO / SERCOM1.3 / AIN1 / VREFA |
| Broche 6 | GND — Ground |
| Broche 7 | PA04 — GPIO / SERCOM0.0 / AIN2 |
| Broche 8 | PA05 — GPIO / SERCOM0.1 / AIN3 |
| Broche 9 | PA06 — GPIO / SERCOM0.2 / AIN4 |
| Broche 10 | PA07 — GPIO / SERCOM0.3 / AIN5 |
| Broche 11 | VDDIO — Digital I/O supply voltage |
| Broche 12 | PA08 — GPIO / SERCOM2.0 / AIN6 |
| Broche 13 | PA09 — GPIO / SERCOM2.1 / AIN7 |
| Broche 14 | PA10 — GPIO / SERCOM2.2 / AIN8 |
| Broche 15 | PA11 — GPIO / SERCOM2.3 / AIN9 |
| Broche 16 | GND — Ground |
| Broche 17 | PB00 — GPIO / SERCOM5.2 |
| Broche 18 | PB01 — GPIO / SERCOM5.3 |
| Broche 19 | PB02 — GPIO / SERCOM5.0 / AIN10 |
| Broche 20 | PB03 — GPIO / SERCOM5.1 / AIN11 |
| Broche 21 | PB04 — GPIO / SERCOM3.0 / AIN12 |
| Broche 22 | PB05 — GPIO / SERCOM3.1 / AIN13 |
| Broche 23 | PB06 — GPIO / SERCOM3.2 / AIN14 |
| Broche 24 | PB07 — GPIO / SERCOM3.3 / AIN15 |
| Broche 25 | PB08 — GPIO / SERCOM4.0 |
| Broche 26 | PB09 — GPIO / SERCOM4.1 |
| Broche 27 | PB10 — GPIO / SERCOM4.2 |
| Broche 28 | PB11 — GPIO / SERCOM4.3 |
| Broche 29 | PB12 — GPIO / SERCOM6.0 |
| Broche 30 | PB13 — GPIO / SERCOM6.1 |
| Broche 31 | PB14 — GPIO / SERCOM6.2 |
| Broche 32 | PB15 — GPIO / SERCOM6.3 |
| Broche 33 | GND — Ground |
| Broche 34 | PC00 — GPIO / SERCOM7.0 |
| Broche 35 | PC01 — GPIO / SERCOM7.1 |
| Broche 36 | PC02 — GPIO / SERCOM7.2 |
| Broche 37 | PC03 — GPIO / SERCOM7.3 |
| Broche 38 | PC04 — GPIO / SERCOM6.0 |
| Broche 39 | PC05 — GPIO / SERCOM6.1 |
| Broche 40 | PC06 — GPIO / SERCOM6.2 |
| Broche 41 | PC07 — GPIO / SERCOM6.3 |
| Broche 42 | VDDIO — Digital I/O supply voltage |
| Broche 43 | PC08 — GPIO / SERCOM7.0 |
| Broche 44 | PC09 — GPIO / SERCOM7.1 |
| Broche 45 | PC10 — GPIO / SERCOM7.2 |
| Broche 46 | PC11 — GPIO / SERCOM7.3 |
| Broche 47 | PC12 — GPIO / SERCOM6.0 |
| Broche 48 | PC13 — GPIO / SERCOM6.1 |
| Broche 49 | PC14 — GPIO / SERCOM6.2 |
| Broche 50 | PC15 — GPIO / SERCOM6.3 |
| Broche 51 | PD00 — GPIO / SERCOM3.0 |
| Broche 52 | PD01 — GPIO / SERCOM3.1 |
| Broche 53 | PD02 — GPIO / SERCOM3.2 |
| Broche 54 | PD03 — GPIO / SERCOM3.3 |
| Broche 55 | PD04 — GPIO / SERCOM5.0 |
| Broche 56 | PD05 — GPIO / SERCOM5.1 |
| Broche 57 | PD06 — GPIO / SERCOM5.2 |
| Broche 58 | PD07 — GPIO / SERCOM5.3 |
| Broche 59 | PD08 — GPIO / SERCOM7.0 |
| Broche 60 | PD09 — GPIO / SERCOM7.1 |
| Broche 61 | PD10 — GPIO / SERCOM7.2 |
| Broche 62 | PD11 — GPIO / SERCOM7.3 |
| Broche 63 | PD12 — GPIO / SERCOM6.0 |
| Broche 64 | PD13 — GPIO / SERCOM6.1 |
| Broche 65 | GND — Ground |
| Broche 66 | PE00 — GPIO / SERCOM0.0 |
| Broche 67 | PE01 — GPIO / SERCOM0.1 |
| Broche 68 | PE02 — GPIO / SERCOM0.2 |
| Broche 69 | PE03 — GPIO / SERCOM0.3 |
| Broche 70 | PE04 — GPIO / SERCOM2.0 / AIN0 |
| Broche 71 | PE05 — GPIO / SERCOM2.1 / AIN1 |
| Broche 72 | PE06 — GPIO / SERCOM2.2 / AIN2 |
| Broche 73 | PE07 — GPIO / SERCOM2.3 / AIN3 |
| Broche 74 | VDDIN — Main voltage regulator input |
| Broche 75 | VDDCORE — Core voltage regulator output (decouple) |
| Broche 76 | GND — Ground |
| Broche 77 | USB_DP — USB Full-Speed Data Plus |
| Broche 78 | USB_DM — USB Full-Speed Data Minus |
| Broche 79 | VDDUSB — USB transceiver supply (3.3V) |
| Broche 80 | GND — Ground |
| Broche 81 | PF00 — GPIO / SERCOM0.0 |
| Broche 82 | PF01 — GPIO / SERCOM0.1 |
| Broche 83 | PF02 — GPIO / SERCOM0.2 |
| Broche 84 | PF03 — GPIO / SERCOM0.3 |
| Broche 85 | PF04 — GPIO / SERCOM2.0 |
| Broche 86 | PF05 — GPIO / SERCOM2.1 |
| Broche 87 | PF06 — GPIO / SERCOM2.2 |
| Broche 88 | PF07 — GPIO / SERCOM2.3 |
| Broche 89 | PF08 — GPIO / SERCOM3.0 |
| Broche 90 | PF09 — GPIO / SERCOM3.1 |
| Broche 91 | PF10 — GPIO / SERCOM3.2 |
| Broche 92 | PF11 — GPIO / SERCOM3.3 |
| Broche 93 | PF12 — GPIO / SERCOM7.0 |
| Broche 94 | PF13 — GPIO / SERCOM7.1 |
| Broche 95 | PA30 — SWCLK / GPIO |
| Broche 96 | PA31 — SWDIO / GPIO |
| Broche 97 | RESETN — Active-low reset input |
| Broche 98 | VDDIO — Digital I/O supply voltage |
| Broche 99 | GND — Ground |
| Broche 100 | VDDIO — Digital I/O supply voltage |
Applications typiques
ATSAMD51N19A-AU-EFP convient pour 7 applications: Industrial Automation Controller, USB Human Interface Device (HID), IoT Edge Sensor Hub, Audio Processing and Synthesis, Motor Control with FOC, HMI Display Controller, Secure Connected Lighting Controller.
Industrial Automation Controller
The ATSAMD51N19A-AU-EFP's 120 MHz Cortex-M4F core with hardware FPU executes multi-axis PID loops and fieldbus protocols deterministically within microsecond interrupt latency. The 512 KB Dual Panel Flash with ECC supports over-the-air firmware updates without downtime, critical for factory PLC and SCADA nodes. Integrated CAN-FD peripherals connect directly to industrial sensor networks without external transceivers. The 1.71-3.6 V supply tolerates 24V industrial rail transients when paired with a wide-input buck regulator, and the 100-pin TQFP package provides ample GPIO for parallel I/O expansion modules.
Recommandé
USB Human Interface Device (HID)
The ATSAMD51N19A-AU-EFP integrates a USB 2.0 Full-Speed PHY supporting HID, CDC, and vendor-specific classes without external transceivers. The Cortex-M4F at 120 MHz handles USB protocol stack plus HID report processing with sub-millisecond latency. The 192 KB SRAM buffers HID reports and command queues. The 12-bit ADC samples analog controls at 1 MSPS while USB enumeration proceeds concurrently. The 100-pin TQFP exposes SERCOM channels for keyboard scan matrices, RGB LED PWM control, and I2C peripherals like accelerometers.
Recommandé
IoT Edge Sensor Hub
The ATSAMD51N19A-AU-EFP serves as a battery-powered IoT edge node aggregating I2C sensor data, performing on-device FFT analysis via its DSP extensions, and transmitting via LoRa or Wi-Fi co-processors over SERCOM. The Cortex-M4F's 120 MHz with hardware FPU runs TinyML inference models for anomaly detection at the edge. Multiple low-power modes (IDLE, STANDBY, BACKUP) drop quiescent current to single-digit microamps for years of battery life. The integrated TRNG supports secure boot and TLS handshake key generation.
Recommandé
Audio Processing and Synthesis
The ATSAMD51N19A-AU-EFP's I2S interface and Cortex-M4F DSP extensions enable real-time audio synthesis, FFT processing, and effects generation at 48 kHz sample rates with low latency. The 192 KB SRAM buffers 16-bit stereo audio frames comfortably for 100 ms latency targets. The 12-bit DAC generates CV/gate signals for modular synthesizers. USB Audio Class 1.0 streams 24-bit/48 kHz directly via the integrated FS USB PHY. Hardware AES accelerator enables encrypted audio path DRM for premium content devices.
Recommandé
Motor Control with FOC
The ATSAMD51N19A-AU-EFP's 120 MHz Cortex-M4F executes field-oriented control (FOC) algorithms for 3-phase BLDC and PMSM motors with sub-10 microsecond loop times. PWM peripherals with dead-band generation drive 3-phase bridges directly. The 12-bit ADC with hardware oversampling samples phase currents precisely. Hardware FPU accelerates Park/Clarke transforms and PID loops. CAN-FD enables real-time communication with CNC controllers and robotics master modules. The 100-pin TQFP exposes all PWM channels and ADC inputs for multi-axis motor control.
Recommandé
HMI Display Controller
The ATSAMD51N19A-AU-EFP drives TFT LCD displays up to WVGA resolution through its parallel display interface and 2-channel DMA engine that offloads framebuffer refresh from the CPU. The Cortex-M4F renders LVGL or TouchGFX GUIs at 60 fps with hardware-float easing animations. Integrated USB HID supports touch screen and external keypad input. The 512 KB flash stores multiple language resources and bitmap assets. The 192 KB SRAM holds partial framebuffers without external SDRAM for small displays.
Recommandé
Secure Connected Lighting Controller
The ATSAMD51N19A-AU-EFP powers DMX512 and DALI lighting fixtures with hardware AES-128 encryption for secure commissioning. The Cortex-M4F executes complex multi-channel PWM dimming curves at 16-bit resolution for flicker-free theatrical lighting. USB and CAN-FD interfaces support both stage lighting protocols and architectural building automation buses. Hardware SHA-256 accelerates TLS handshake for cloud-connected smart lighting. The 100-pin TQFP package provides ample GPIO for status LEDs and rotary encoder inputs in wall-mount controllers.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAMD51N19A-AU-EFP — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAMD51N19A-AUT-EFP | ATSAMD51N20A-AU-EFP | ATSAMD51N18A-AU-EFP | ATSAMD51P19A-AU-EFP | ATSAMD51J19A-AUT-EFP |
|---|---|---|---|---|---|---|
| Package | 100-pin TQFP (14x14) | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same | 64-pin TQFP - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 512 KB | 512 KB | 1 MB | 256 KB | 512 KB | 512 KB |
| SRAM | 192 KB | 192 KB | 192 KB | 128 KB | 192 KB | 192 KB |
| Maximum Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Core | Cortex-M4F | Cortex-M4F | Cortex-M4F | Cortex-M4F | Cortex-M4F | Cortex-M4F |
| Operating Voltage | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V |
| USB Interface | USB 2.0 FS with PHY | USB 2.0 FS with PHY | USB 2.0 FS with PHY | USB 2.0 FS with PHY | USB 2.0 HS + FS PHY | USB 2.0 FS with PHY |
Principaux différenciateurs
- Higher SRAM and extended GPIO than ATSAMD51J19A-AUT-EFP (vs ATSAMD51J19A-AUT-EFP)
- Drop-in flash upgrade path with ATSAMD51N20A-AU-EFP (vs ATSAMD51N20A-AU-EFP)
- Cryptographic accelerator absent from earlier ATSAM3X/4S lines (vs ATSAM3X8E-AU)
Notes de conception
Decouple each VDDIO pin with a 100 nF X7R ceramic capacitor placed within 3 mm of the pin. Add a single 10 uF bulk capacitor near the VDDIN pin. The internal 1.2V LDO supplies VDDCORE and requires a 1 uF + 100 nF decoupling network at pin 75. Per Microchip datasheet DS60001507, the maximum supply ramp rate is 100 V/ms - exceeding this can trigger ESD protection latchup. Power sequencing is not required; VDDIO and VDDIN may ramp together.
Route the USB DP/DM pair with 90-ohm differential impedance and length matching within 150 mils. Place the USB common-mode choke and ESD protection array within 5 mm of the connector. The 100-pin TQFP (14x14 mm) provides ample routing channels on a 4-layer PCB with 0.5 mm pitch traces. Expose copper thermal pad beneath the package (GND pour) for thermal relief, even though the TQFP-100 lacks an exposed pad; ground stitching vias improve EMI.
Do not load NVM fuses without first enabling the NVMCTRL controller in PAC2 - attempts to write locked regions cause hard faults. The DFLL48M requires the XOSC32K reference or a calibrated internal reference; floating XIN/XOUT at startup can leave the core at 1 MHz causing unexpected timing failures. When migrating from ATSAMD51J19A-AUT-EFP (TQFP-64) to ATSAMD51N19A-AU-EFP (TQFP-100), verify pin assignments - the additional pins expose extra SERCOM channels but require firmware updates.
Informations de conformité
RoHS compliant per Microchip product page. Industrial -40C to +85C operating temperature. Not AEC-Q100 qualified - this is a general-purpose MCU, not an automotive part.
