ATSAMD51N20A-AFT - 120MHz Cortex-M4F 1MB Flash MCU | Microchip
N.º da peça: ATSAMD51N20A-AFT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $12.935 | $12,94 |
| 10 | $11.64 | $116,40 |
| 100 | $10.35 | $1.035,00 |
| 500 | $9.32 | $4.660,00 |
| 1.000 | $8.8 | $8.800,00 |
ATSAMD51N20A-AFT Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and programmable I/O peripherals. The ATSAMD51N20A-AFT belongs to the ARM Cortex-M4F family, a 32-bit processor architecture that adds hardware single-precision floating-point acceleration and DSP instructions to the Cortex-M4 baseline. Within the broader taxonomy, this part is a Cortex-M4 microcontroller -> ARM 32-bit MCU -> embedded processor -> semiconductor IC. Its Cortex-M4F core sits between the Cortex-M3 (no FPU) and the Cortex-M7 (higher performance, also with FPU), offering a balanced trade-off of speed, power, and DSP capability.
Key features include the 120 MHz Cortex-M4F core, 1 MB of dual-bank Flash that enables live firmware updates with rollback, 256 KB SRAM with ECC for reliability, an on-chip USB 2.0 Full-Speed device/host port, configurable SERCOM peripherals (UART/SPI/I2C), a 12-bit ADC with up to 16 channels, a 12-bit DAC, and a CAN-FD controller. The integrated Event System and Peripheral Event Controller enable deterministic inter-peripheral signalling without CPU load. Security and reliability features include ECC on Flash and SRAM, a True Random Number Generator (TRNG), secure boot, and cryptographic accelerators.
Typical applications include IoT edge nodes, industrial motor control, USB peripherals, audio processing, smart sensor hubs, and human-machine interface (HMI) panels. The 1 MB dual-bank Flash is particularly valuable for products requiring over-the-air firmware updates with rollback capability, and the rich analog and connectivity peripherals suit industrial-grade, fan-less embedded designs. The 100-TQFP package is a mature, hand-solderable footprint friendly to both prototyping and volume production.
When designing with this device, ensure the internal core voltage regulator has sufficient bulk capacitance and that the decoupling network follows the SAM D51 reference schematic. For USB applications, place the 48 MHz crystal within 5 mm of the XIN32/XOUT32 pins, and route USB D+/D- as a 90-ohm differential with no stubs.
This page synthesizes distributor pricing, drop-in alternatives from the same SAM D5X/E5X family, and practical design notes not found in the manufacturer datasheet alone.
Alternativas drop-in para ATSAMD51N20A-AFT — 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 ATSAMD51N20A-AFT (mesmo formato e footprint) — diferindo em ADC, USB, Operating Temperature, DAC, SRAM.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAMD51N20A-AU
✅ Drop-In✓ Em estoque
$8.49 / unidade
Ver ficha técnica →ATSAMD51N20A-AUT-EFP
✅ Drop-In✓ Em estoque
$6.43 / unidade
Ver ficha técnica →ATSAMD51N20A-AU-EFP
✅ Drop-In✓ Em estoque
$9.42 / unidade
Ver ficha técnica →ATSAMD51J20A-AUT
✅ Drop-In✓ Em estoque
$3.32 / unidade
Ver ficha técnica →ATSAME51N20A-AF
✅ Drop-In✓ Em estoque
$6.55 / unidade
Ver ficha técnica →ATSAME51N20A-AUT-EFP
✅ Drop-In✓ Em estoque
$5.65 / unidade
Ver ficha técnica →ATSAMD51N20A-AFT Classificações máximas e características elétricas
| Core | ARM Cortex-M4F with FPU and DSP |
| Maximum CPU Clock | 120 MHz |
| Program Memory (Flash) | 1 MB (Dual Panel with ECC) |
| SRAM | 256 KB (with ECC) |
| Encapsulamento | 100-pin TQFP (14x14 mm) |
| Temperatura de operação | -40C to +125C (Extended Industrial) |
| Tensão de alimentação | 1.71 V to 3.6 V |
| ADC | 12-bit |
| DAC | 12-bit |
| USB | USB 2.0 Full-Speed device/host |
| CAN | CAN-FD controller |
| SERCOM | Multiple configurable (UART/SPI/I2C) |
| Cryptography | TRNG, secure boot, crypto accelerators |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
| Family | SAM D51 (SAM D5X/E5X) |
| Lead-Free | Yes |
Guia de Configuração de Pinos do ATSAMD51N20A-AFT 100-pin tqfp (14x14 mm)
Configuração de pinos para ATSAMD51N20A-AFT (pacote 100-pin tqfp (14x14 mm)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para ATSAMD51N20A-AFT.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ATSAMD51N20A-AFT é adequado para 6 aplicaçãos: IoT Edge Nodes, Industrial Motor Control, USB Peripherals and HID Devices, Audio Processing and DSP, Human-Machine Interface (HMI) Panels, Smart Sensor Hubs.
IoT Edge Nodes
The ATSAMD51N20A-AFT's 120 MHz Cortex-M4F core with FPU and DSP, combined with 1 MB dual-bank Flash, makes it ideal for IoT edge nodes performing on-device sensor processing and analytics. The dual-panel Flash enables secure over-the-air (OTA) firmware updates with rollback capability - critical for deployed IoT fleets where update failures must be recoverable. Multiple SERCOM channels (UART/SPI/I2C) and CAN-FD connectivity allow the MCU to aggregate sensor data from multiple bus types. The hardware crypto accelerators and TRNG support TLS and secure boot, key for IoT security. Extended temperature grade (-40C to +125C) suits outdoor or industrial IoT deployments.
Recomendado
Industrial Motor Control
The ATSAMD51N20A-AFT excels in industrial motor control due to its 120 MHz Cortex-M4F core, hardware FPU, and DSP extensions that accelerate field-oriented control (FOC) and sinusoidal commutation algorithms. The 12-bit ADC with multiple channels supports three-phase current sensing, while the integrated Event System enables deterministic PWM-to-ADC synchronization without CPU intervention. CAN-FD connectivity simplifies integration with industrial CAN networks, and the -40C to +125C extended temperature range suits harsh factory environments. The 1 MB Flash provides ample space for advanced control firmware, including sensorless FOC algorithms.
Recomendado
USB Peripherals and HID Devices
The ATSAMD51N20A-AFT integrates a USB 2.0 Full-Speed device/host controller with on-chip PHY, eliminating the need for an external USB transceiver. The 120 MHz Cortex-M4F core can drive USB device stacks and HID/COM/CDC classes while simultaneously handling user-interface processing. The 256 KB SRAM accommodates USB descriptor stacks and double-buffered endpoints. The MCU's dual-bank Flash enables field firmware upgrades over USB without requiring external bootloaders, while the rich SERCOM peripherals provide additional UART/SPI expansion for connected sensors.
Recomendado
Audio Processing and DSP
Audio processing applications benefit from the ATSAMD51N20A-AFT's hardware FPU, DSP instructions, and 120 MHz CPU clock - enabling real-time audio codecs, equalization, and noise cancellation. The 12-bit DAC can drive line-level audio output directly, while the 12-bit ADC supports microphone input capture. The 1 MB Flash stores audio firmware and small sample tables, and the SERCOM peripherals connect to I2S codecs or external audio DACs. The Cortex-M4F DSP extensions accelerate FFT and biquad filter operations common in audio pipelines.
Recomendado
Human-Machine Interface (HMI) Panels
The ATSAMD51N20A-AFT is well suited for industrial HMI panels thanks to its 120 MHz processing headroom, 1 MB Flash for graphical firmware and assets, and 256 KB SRAM for framebuffers. The integrated 12-bit ADC supports touch-screen analog front-ends, while SERCOM channels drive TFT displays via SPI. The extended temperature grade ensures reliable operation in factory environments, and the CAN-FD interface enables integration with industrial control networks. The dual-bank Flash supports OTA GUI updates without service interruption.
Recomendado
Smart Sensor Hubs
Smart sensor hubs aggregate data from multiple sensors and require the ATSAMD51N20A-AFT's blend of processing power and connectivity. The Cortex-M4F with DSP accelerates sensor fusion algorithms (IMU + environmental sensors), while multiple SERCOM channels handle I2C/SPI sensor buses simultaneously. The 256 KB SRAM supports data buffering for BLE/Wi-Fi co-processors, and the CAN-FD interface integrates with automotive or industrial sensor networks. The extended temperature rating suits harsh deployment scenarios, and ECC on memory improves data integrity for critical sensor measurements.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAMD51N20A-AFT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAMD51N20A-AU | ATSAMD51N20A-AUT | ATSAMD51N20A-AU-EFP | ATSAMD51J20A-AUT | ATSAME51N20A-AF | ATSAME51N20A-AUT |
|---|---|---|---|---|---|---|---|
| Package | 100-TQFP (14x14 mm) | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same | 100-TQFP (14x14) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 | ARM Cortex-M4F 120 MHz |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Standard Industrial) | -40C to +85C | -40C to +85C | -40C to +125C (Extended) | -40C to +85C |
| USB | USB 2.0 Full-Speed Device/Host | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| Ethernet | No | No | No | No | No | Yes (SAM E51) | Yes (SAM E51) |
Principais diferenciais
- Largest Flash with dual-bank architecture in 100-TQFP SAM D51 family (vs ATSAMD51J20A-AUT)
- Extended industrial temperature grade (vs ATSAMD51N20A-AUT)
- No Ethernet - lower BOM cost vs SAM E51 (vs ATSAME51N20A-AF)
Notas de projeto
The ATSAMD51N20A-AFT integrates a 1.2V core LDO that must be bypassed with at least 1uF X7R ceramic plus 4.7uF bulk capacitance per the SAM D51 reference schematic. VDDIO is rated 1.71V to 3.6V - operation below 1.8V disables some peripherals including USB. For low-EMI designs, place the bulk capacitors within 5 mm of the VDDCORE and VDDIO pins and use a 4-layer PCB with a dedicated ground plane.
USB designs require the 48 MHz crystal placed within 5 mm of XIN32/XOUT32 with symmetrical trace lengths, and the USB D+/D- pair routed as a 90-ohm differential with no stubs and a continuous ground reference beneath. For CAN-FD designs, add a 120-ohm termination resistor at the bus end and keep stub lengths below 50 mm. Decouple every VDD pin with 100 nF plus 10 nF ceramic capacitors.
Do not exceed 3.6V on any VDD pin - the ATSAMD51N20A-AFT is not 5V tolerant. The NVMCTRL lock bits must be configured carefully: locking the entire Flash without enabling the secure boot fuse can brick the device. For dual-bank OTA, the application must implement a safe bootloader in BOOT region before locking. Always validate firmware integrity with the hardware SHA accelerator before jumping to application code.
Informações de conformidade
RoHS and REACH compliance per Microchip product page. AEC-Q100 not applicable for general-purpose MCU; refer to automotive-qualified SAM variants if required. Halogen-free status not explicitly stated in retrieved data.
