ATSAMD51N19A-AU-EFP - 120MHz Cortex-M4F MCU 512KB Flash | Microchip
N.º da peça: ATSAMD51N19A-AU-EFP ✓ Ativo| Qtd. | Preço unitário | 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 Visão geral
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.
Alternativas drop-in para ATSAMD51N19A-AU-EFP — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATSAMD51N19A-AU-EFP (mesmo formato e footprint) — diferindo em Package, ADC, Operating Temperature, USB, SRAM.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAMD51N19A-AUT-EFP
✅ Drop-In✓ Em estoque
$3.65 / unidade
Ver ficha técnica →ATSAMD51N20A-AU-EFP
✅ Drop-In✓ Em estoque
$9.42 / unidade
Ver ficha técnica →ATSAMD51N18A-AU-EFP
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ATSAMD51P19A-AU-EFP
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.88 / unidade
Ver ficha técnica →ATSAMD51J19A-AUT-EFP
✅ Drop-In✓ Em estoque
$4.45 / unidade
Ver ficha técnica →ATSAMD51N19A-AU-EFP Classificações máximas e características elétricas
| 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 |
| Temperatura de operação | -40 C to +85 C (Industrial) |
| Encapsulamento | 100-pin TQFP (14x14 mm) |
| Tipo de montagem | 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) |
| Status RoHS | Compliant |
| Lead-Free | Yes |
| Packaging Type | Tray |
Configuração de pinos do ATSAMD51N19A-AU-EFP
| Pino 1 | VDDIO — Digital I/O supply voltage |
| Pino 2 | PA00 — GPIO / SERCOM1.0 / XIN |
| Pino 3 | PA01 — GPIO / SERCOM1.1 / XOUT |
| Pino 4 | PA02 — GPIO / SERCOM1.2 / AIN0 |
| Pino 5 | PA03 — GPIO / SERCOM1.3 / AIN1 / VREFA |
| Pino 6 | GND — Ground |
| Pino 7 | PA04 — GPIO / SERCOM0.0 / AIN2 |
| Pino 8 | PA05 — GPIO / SERCOM0.1 / AIN3 |
| Pino 9 | PA06 — GPIO / SERCOM0.2 / AIN4 |
| Pino 10 | PA07 — GPIO / SERCOM0.3 / AIN5 |
| Pino 11 | VDDIO — Digital I/O supply voltage |
| Pino 12 | PA08 — GPIO / SERCOM2.0 / AIN6 |
| Pino 13 | PA09 — GPIO / SERCOM2.1 / AIN7 |
| Pino 14 | PA10 — GPIO / SERCOM2.2 / AIN8 |
| Pino 15 | PA11 — GPIO / SERCOM2.3 / AIN9 |
| Pino 16 | GND — Ground |
| Pino 17 | PB00 — GPIO / SERCOM5.2 |
| Pino 18 | PB01 — GPIO / SERCOM5.3 |
| Pino 19 | PB02 — GPIO / SERCOM5.0 / AIN10 |
| Pino 20 | PB03 — GPIO / SERCOM5.1 / AIN11 |
| Pino 21 | PB04 — GPIO / SERCOM3.0 / AIN12 |
| Pino 22 | PB05 — GPIO / SERCOM3.1 / AIN13 |
| Pino 23 | PB06 — GPIO / SERCOM3.2 / AIN14 |
| Pino 24 | PB07 — GPIO / SERCOM3.3 / AIN15 |
| Pino 25 | PB08 — GPIO / SERCOM4.0 |
| Pino 26 | PB09 — GPIO / SERCOM4.1 |
| Pino 27 | PB10 — GPIO / SERCOM4.2 |
| Pino 28 | PB11 — GPIO / SERCOM4.3 |
| Pino 29 | PB12 — GPIO / SERCOM6.0 |
| Pino 30 | PB13 — GPIO / SERCOM6.1 |
| Pino 31 | PB14 — GPIO / SERCOM6.2 |
| Pino 32 | PB15 — GPIO / SERCOM6.3 |
| Pino 33 | GND — Ground |
| Pino 34 | PC00 — GPIO / SERCOM7.0 |
| Pino 35 | PC01 — GPIO / SERCOM7.1 |
| Pino 36 | PC02 — GPIO / SERCOM7.2 |
| Pino 37 | PC03 — GPIO / SERCOM7.3 |
| Pino 38 | PC04 — GPIO / SERCOM6.0 |
| Pino 39 | PC05 — GPIO / SERCOM6.1 |
| Pino 40 | PC06 — GPIO / SERCOM6.2 |
| Pino 41 | PC07 — GPIO / SERCOM6.3 |
| Pino 42 | VDDIO — Digital I/O supply voltage |
| Pino 43 | PC08 — GPIO / SERCOM7.0 |
| Pino 44 | PC09 — GPIO / SERCOM7.1 |
| Pino 45 | PC10 — GPIO / SERCOM7.2 |
| Pino 46 | PC11 — GPIO / SERCOM7.3 |
| Pino 47 | PC12 — GPIO / SERCOM6.0 |
| Pino 48 | PC13 — GPIO / SERCOM6.1 |
| Pino 49 | PC14 — GPIO / SERCOM6.2 |
| Pino 50 | PC15 — GPIO / SERCOM6.3 |
| Pino 51 | PD00 — GPIO / SERCOM3.0 |
| Pino 52 | PD01 — GPIO / SERCOM3.1 |
| Pino 53 | PD02 — GPIO / SERCOM3.2 |
| Pino 54 | PD03 — GPIO / SERCOM3.3 |
| Pino 55 | PD04 — GPIO / SERCOM5.0 |
| Pino 56 | PD05 — GPIO / SERCOM5.1 |
| Pino 57 | PD06 — GPIO / SERCOM5.2 |
| Pino 58 | PD07 — GPIO / SERCOM5.3 |
| Pino 59 | PD08 — GPIO / SERCOM7.0 |
| Pino 60 | PD09 — GPIO / SERCOM7.1 |
| Pino 61 | PD10 — GPIO / SERCOM7.2 |
| Pino 62 | PD11 — GPIO / SERCOM7.3 |
| Pino 63 | PD12 — GPIO / SERCOM6.0 |
| Pino 64 | PD13 — GPIO / SERCOM6.1 |
| Pino 65 | GND — Ground |
| Pino 66 | PE00 — GPIO / SERCOM0.0 |
| Pino 67 | PE01 — GPIO / SERCOM0.1 |
| Pino 68 | PE02 — GPIO / SERCOM0.2 |
| Pino 69 | PE03 — GPIO / SERCOM0.3 |
| Pino 70 | PE04 — GPIO / SERCOM2.0 / AIN0 |
| Pino 71 | PE05 — GPIO / SERCOM2.1 / AIN1 |
| Pino 72 | PE06 — GPIO / SERCOM2.2 / AIN2 |
| Pino 73 | PE07 — GPIO / SERCOM2.3 / AIN3 |
| Pino 74 | VDDIN — Main voltage regulator input |
| Pino 75 | VDDCORE — Core voltage regulator output (decouple) |
| Pino 76 | GND — Ground |
| Pino 77 | USB_DP — USB Full-Speed Data Plus |
| Pino 78 | USB_DM — USB Full-Speed Data Minus |
| Pino 79 | VDDUSB — USB transceiver supply (3.3V) |
| Pino 80 | GND — Ground |
| Pino 81 | PF00 — GPIO / SERCOM0.0 |
| Pino 82 | PF01 — GPIO / SERCOM0.1 |
| Pino 83 | PF02 — GPIO / SERCOM0.2 |
| Pino 84 | PF03 — GPIO / SERCOM0.3 |
| Pino 85 | PF04 — GPIO / SERCOM2.0 |
| Pino 86 | PF05 — GPIO / SERCOM2.1 |
| Pino 87 | PF06 — GPIO / SERCOM2.2 |
| Pino 88 | PF07 — GPIO / SERCOM2.3 |
| Pino 89 | PF08 — GPIO / SERCOM3.0 |
| Pino 90 | PF09 — GPIO / SERCOM3.1 |
| Pino 91 | PF10 — GPIO / SERCOM3.2 |
| Pino 92 | PF11 — GPIO / SERCOM3.3 |
| Pino 93 | PF12 — GPIO / SERCOM7.0 |
| Pino 94 | PF13 — GPIO / SERCOM7.1 |
| Pino 95 | PA30 — SWCLK / GPIO |
| Pino 96 | PA31 — SWDIO / GPIO |
| Pino 97 | RESETN — Active-low reset input |
| Pino 98 | VDDIO — Digital I/O supply voltage |
| Pino 99 | GND — Ground |
| Pino 100 | VDDIO — Digital I/O supply voltage |
Aplicações típicas
ATSAMD51N19A-AU-EFP é adequado para 7 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAMD51N19A-AU-EFP — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- 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)
Notas de projeto
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.
Informações de conformidade
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.
