ATSAMD51N20A-AUT-EFP - 120MHz Cortex-M4F MCU, 1MB Flash | Microchip
N.º de pieza: ATSAMD51N20A-AUT-EFP ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $9.84 | $9,84 |
| 10 | $8.96 | $89,60 |
| 100 | $8.07 | $807,00 |
| 500 | $7.21 | $3.605,00 |
| 1.000 | $6.43 | $6.430,00 |
ATSAMD51N20A-AUT-EFP Descripción general
An MCU (Microcontroller Unit) is a single-chip computer integrating CPU core, program memory (Flash), data memory (SRAM), and peripheral interfaces on one die. Microcontrollers sit within the embedded computing hierarchy as: MCU -> embedded processor -> semiconductor device. The Cortex-M4F class specifically targets digital signal control with hardware floating point, allowing deterministic real-time performance with DSP extensions.
Key features of the ATSAMD51N20A-AUT-EFP include 120 MHz core clock with FPU, 1 MB dual-panel Flash with ECC, 256 KB SRAM with ECC, a 12-bit 1 MSPS ADC, two 12-bit DACs, and a high-speed USB 2.0 Full-Speed device/host port. The part supports -40C to +85C industrial temperature range (AUT suffix) and offers low-power Sleep/Standby modes with RTC retention. The "EFP" suffix denotes Extended Flash Performance tuning, and the "T" denotes Tape and Reel packaging.
Architecture-wise, the SAM D51 family uses a Harvard bus structure with separate code and data paths to the Flash and SRAM, allowing zero-wait-state execution at 120 MHz. The dual-panel Flash supports simultaneous read-while-write operations, enabling field firmware updates without halting application code. The Cortex-M4F DSP extensions and single-precision FPU accelerate control-loop math and signal processing.
Typical applications include industrial IoT gateways, USB audio interfaces, motor control (FOC), smart energy metering, and human-machine interface (HMI) panels. The combination of high-speed USB, large Flash, and DSP-capable core is well matched to audio processing, sensor fusion, and connected industrial nodes.
When designing, ensure the 32.768 kHz crystal placement follows the Microchip SAM D51 reference design to maintain USB jitter compliance. Decouple VDDIO and VDDCORE with bulk + 100 nF + 1 nF ceramic capacitors placed within 2 mm of the package pins.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found on the manufacturer summary page.
Alternativas directas para ATSAMD51N20A-AUT-EFP — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ATSAMD51N20A-AUT-EFP (mismo factor de forma y huella) — difiere en ADC, DAC, Operating Temperature, USB, SRAM.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ATSAMD51N20A-AU-EFP
✅ Sustitución directa✓ En stock
$9.42 / unidad
Ver hoja de datos →ATSAMD51N20A-AFT
✅ Sustitución directa✓ En stock
$8.8 / unidad
Ver hoja de datos →ATSAMD51N20A-AUT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ATSAMD51N19A-AUT-EFP
✅ Sustitución directa✓ En stock
$3.65 / unidad
Ver hoja de datos →ATSAMD51N20A-AF
✅ Sustitución directa✓ En stock
$6.84 / unidad
Ver hoja de datos →ATSAME51N20A-AUT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ATSAMD51N20A-AUT-EFP Valores máximos y características eléctricas
| Core Architecture | ARM Cortex-M4F with FPU |
| Maximum Core Frequency | 120 MHz |
| Bit Width | 32-bit |
| Program Memory (Flash) | 1 MB (1M x 8) with ECC |
| SRAM | 256 KB with ECC |
| Encapsulado | 100-pin TQFP (14x14 mm) |
| Tipo de montaje | Surface Mount |
| Temperatura de funcionamiento | -40C to +85C (AUT suffix) |
| USB Interface | USB 2.0 Full-Speed, Device and Host |
| ADC | 12-bit, 1 MSPS |
| DAC | 2 x 12-bit |
| Estado RoHS | Compliant |
| Special Feature | EFP - Extended Flash Performance |
Guía de configuración de pines de ATSAMD51N20A-AUT-EFP 100-pin tqfp (14x14 mm)
Configuración de pines para ATSAMD51N20A-AUT-EFP (encapsulado 100-pin tqfp (14x14 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para ATSAMD51N20A-AUT-EFP.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
ATSAMD51N20A-AUT-EFP es adecuado para 6 aplicacións: Industrial IoT Gateway, USB Audio Interface, Motor Control (FOC and Trapezoidal), Smart Energy Metering, Human-Machine Interface (HMI) Panel, Wearable Sensor Hub.
Industrial IoT Gateway
The ATSAMD51N20A-AUT-EFP fits industrial IoT gateway applications because of its 120 MHz Cortex-M4F core with FPU that handles protocol conversion (Modbus, CAN, MQTT-SN), 1 MB dual-panel Flash supporting over-the-air (OTA) firmware updates with simultaneous read-while-write, and 256 KB SRAM buffering sensor telemetry streams. The high-speed USB 2.0 Full-Speed device/host port simplifies wired connectivity to upstream PLCs or downstream sensors, and SERCOM peripherals map to UART/SPI/I2C for sensor and modem links. Its -40C to +85C industrial temperature range (AUT) tolerates factory-floor ambient conditions. Power-conscious designs leverage the Sleep and Standby modes with RTC retention to reduce gateway current to under 10 uA between telemetry bursts.
Recomendado
USB Audio Interface
The ATSAMD51N20A-AUT-EFP is well suited for USB audio interface applications because its Cortex-M4F DSP extensions and single-precision FPU deliver real-time audio DSP (EQ, dynamics, mixing) without taxing the core. The integrated USB 2.0 Full-Speed device interface streams 48 kHz / 16-bit stereo audio with low jitter, while dual 12-bit DACs and the I2S peripheral connect to external audio CODECs for higher fidelity playback. The 1 MB dual-panel Flash supports USB host stack plus audio firmware with headroom for upgrade. According to Microchip SAM D51 reference designs, the part can also act as USB host to read audio files from mass-storage devices, enabling stand-alone player products.
Recomendado
Motor Control (FOC and Trapezoidal)
The ATSAMD51N20A-AUT-EFP handles three-phase brushless DC motor control with Field-Oriented Control (FOC) because its Cortex-M4F DSP extensions and hardware FPU accelerate Park/Clarke transforms, PI loops, and SVM calculation within a typical 10 kHz control period. The 12-bit 1 MSPS ADC samples phase currents with synchronized PWM from the TCC timer peripherals, providing deterministic control timing. The 1 MB Flash stores application code, motor parameter tables, and fault handlers, while 256 KB SRAM holds control variables. The -40C to +85C operating range and on-chip analog comparator support robust industrial motor drives up to several kW.
Recomendado
Smart Energy Metering
The ATSAMD51N20A-AUT-EFP supports smart energy metering applications because its 12-bit 1 MSPS ADC with up to 16 analog channels captures voltage and current waveforms from the mains side, and the Cortex-M4F DSP extensions compute real-time RMS, harmonic distortion (THD), and reactive power algorithms. The 1 MB dual-panel Flash with ECC supports calibrated metrology firmware plus communication stack (DLMS/COSEM, M-Bus) with secure OTA updates enabled by read-while-write. Hardware cryptographic accelerators and True Random Number Generator (TRNG) enable tamper-resistant designs. The -40C to +85C temperature range ensures accurate measurement across outdoor meter enclosures in varied climates.
Recomendado
Human-Machine Interface (HMI) Panel
The ATSAMD51N20A-AUT-EFP drives HMI panel applications because its 120 MHz core with FPU renders graphics and updates TFT-LCD panels smoothly via the integrated parallel display interface, while the QSPI peripheral fetches assets from external Flash at high speed. The dual 12-bit DACs generate audio feedback and reference voltages for touch sensing, and 8 SERCOM channels support UART to PLCs, SPI to displays, and I2C to capacitive touch controllers. The 1 MB Flash hosts LVGL/MODBUS UI stacks, while the 256 KB SRAM supports frame buffers. The -40C to +85C range and EMC-resilient peripherals suit industrial cabinet environments.
Recomendado
Wearable Sensor Hub
The ATSAMD51N20A-AUT-EFP fits wearable sensor hub applications because the Cortex-M4F with FPU runs sensor fusion (IMU, magnetometer, barometer) and on-device machine learning inference (e.g., gesture recognition) with sub-10 ms latency, while Sleep and Standby modes with RTC retention bring idle current to single-digit uA. The 1 MB dual-panel Flash stores inference models and BLE stack, and 256 KB SRAM holds ring buffers for motion data. The integrated USB enables charging and firmware update over a single connector, simplifying mechanical design. The compact 100-pin TQFP fits wrist-worn enclosures; for tighter spaces the ATSAMD51J series offers smaller package footprints at reduced I/O.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ATSAMD51N20A-AUT-EFP — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ATSAMD51N20A-AU-EFP | ATSAMD51N20A-AFT | ATSAMD51N20A-AUT | ATSAMD51N19A-AUT-EFP | ATSAMD51N20A-AF | ATSAME51N20A-AUT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (14x14) | 100-pin TQFP (14x14) - same | 100-pin TQFP (14x14) - same | 100-pin TQFP (14x14) - same | 100-pin TQFP (14x14) - same | 100-pin TQFP (14x14) - same | 100-pin TQFP (14x14) - same |
| Core | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz | Cortex-M4F @ 120 MHz |
| Flash | 1 MB | 1 MB | 1 MB | 1 MB | 768 KB (-25%) | 1 MB | 1 MB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| USB | FS Device + Host | FS Device + Host | FS Device + Host | FS Device + Host | FS Device + Host | FS Device + Host | No USB |
| EFP Feature | Yes | Yes | No (AFT suffix) | No | Yes | No (AF suffix) | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Diferenciadores clave
- Extended Flash Performance tuning for 120 MHz zero-wait-state (frente a ATSAMD51N20A-AUT)
- 1 MB Flash vs 768 KB on pin-compatible N19A variant (frente a ATSAMD51N19A-AUT-EFP)
- Integrated USB 2.0 FS device/host not present on E51 (frente a ATSAME51N20A-AUT)
Notas de diseño
The ATSAMD51N20A-AUT-EFP integrates a 1.2V internal core LDO fed from the VDDCORE pin. Recommended: place a 1 uF X7R ceramic capacitor within 2 mm of the VDDCORE pin, plus a 100 nF in parallel. For VDDBU (RTC supply), connect to VDDIO if battery backup is not used, or to a coin cell through a Schottky diode for RTC retention in Sleep modes.
Follow Microchip SAM D51 reference design for USB layout: route D+/D- as a 90-ohm differential pair with continuous ground reference, length-matched within 150 mil. Place the 48 MHz crystal within 5 mm of XIN/XOUT pins with guard traces around the oscillator area to reduce EMI coupling. Add a ferrite bead on VBUS to suppress conducted emissions.
Estimated: at 120 MHz active mode with all peripherals enabled, the SAM D51 typically dissipates approximately 60-90 mW. The 100-pin TQFP-14x14 mm has theta_JA around 45 C/W, so junction rise is roughly 4C above ambient at typical load - well within the 85C industrial limit. If peripheral activity is heavy (USB, ADC continuous), add thermal copper pour beneath the exposed pad region.
Do not skip the NVMCTRL row-write lock bits configuration in firmware; leaving defaults can prevent dual-panel Flash read-while-write operation. Ensure BOOTPROT fuse is set appropriately for secure bootloader designs. The EFP (Extended Flash Performance) suffix parts require the latest ASF/MPLAB Harmony core files for correct wait-state configuration at 120 MHz - older ASF may underperform.
Información de cumplimiento
RoHS and lead-free per Microchip product page; AUT suffix denotes industrial -40C to +85C operating range. Not AEC-Q100 qualified; for AEC-Q100 automotive use, refer to Microchip's automotive-grade SAM products.
