ATSAME51N19A-AFT - 120MHz Cortex-M4F MCU 512KB Flash 100-TQFP | Microchip
N.º da peça: ATSAME51N19A-AFT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $7.85 | $7,85 |
| 10 | $7.12 | $71,20 |
| 100 | $6.38 | $638,00 |
| 500 | $5.74 | $2.870,00 |
| 1.000 | $5.15 | $5.150,00 |
| 3.000 | $4.62 | $13.860,00 |
ATSAME51N19A-AFT Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile memory (SRAM), non-volatile program memory (Flash), and a rich set of peripherals on one die. The ATSAME51N19A-AFT belongs to the Cortex-M4F family, a 32-bit Harvard-architecture core optimized for deterministic real-time control with hardware single-precision floating-point acceleration. Within the broader semiconductor taxonomy, MCUs sit beneath microprocessors as power-efficient compute platforms for embedded systems, with this part targeting the high-performance end of the Microchip SAM portfolio above Cortex-M0+ devices but below Cortex-M7 application processors.
Key differentiating features of the ATSAME51N19A-AFT include 120 MHz operation with DSP extensions, dual-panel Flash with error correction (ECC), up to 192 KB SRAM with backup retention, an Event System for hardware-triggered peripheral interconnect, a 12-bit 1 MSPS ADC with up to 16 channels, and a built-in full-speed USB 2.0 transceiver that eliminates external PHY circuitry. The device operates across -40C to +125C industrial temperature range and supports 1.71V to 3.6V supply.
Architecturally, the ATSAME51N19A-AFT uses Microchip's proprietary SAM E51 platform with an on-chip PLL generating the 120 MHz system clock from internal/external references, dual-bank Flash allowing in-application programming while executing from the other bank, and TrustZone-M-like memory protection via the Memory Protection Unit (MPU) for safety-critical code isolation. The Cortex-M4F DSP extensions accelerate signal processing for motor control and audio DSP tasks.
Typical applications include industrial automation PLCs, USB Human Interface Devices (HID), CAN-FD automotive body controllers, smart energy metering, IoT sensor hubs with USB-C charging, building automation controllers, and consumer audio products with USB-C connectivity. The integrated USB, CAN-FD, and capacitive touch make it a single-chip solution that replaces several discrete peripherals on smaller designs.
When designing with this MCU, ensure the VDDCORE pin is decoupled with 1 uF + 100 nF ceramic capacitors placed within 3 mm of the package, and verify that the dual-bank Flash configuration is understood by your toolchain to enable field firmware updates without external bootloader logic. The integrated USB PHY eliminates external 12 MHz crystal-accurate clock requirements but still requires a precise 48 MHz reference per USB 2.0 spec.
This page synthesizes distributor pricing, drop-in same-package alternatives from the Microchip SAM D5x/E5x family, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the ATSAME51N19A-AFT for both new designs and ATSAMD51 family replacements.
Alternativas drop-in para ATSAME51N19A-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 ATSAME51N19A-AFT (mesmo formato e footprint) — diferindo em ADC, Operating Temperature, SRAM, Supply Voltage, USB.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAME51N20A-AFT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATSAME54N20A-AFT
✅ Drop-In✓ Em estoque
$8.1 / unidade
Ver ficha técnica →ATSAMD51N19A-AFT
✅ Drop-In✓ Em estoque
$4.8 / unidade
Ver ficha técnica →ATSAMD51N20A-AF
✅ Drop-In✓ Em estoque
$6.84 / unidade
Ver ficha técnica →ATSAME51J19A-AFT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.62 / unidade
Ver ficha técnica →ATSAME51N19A-AFT Classificações máximas e características elétricas
| Core Architecture | ARM Cortex-M4F (32-bit, with FPU and DSP) |
| Maximum CPU Frequency | 120 MHz |
| Program Memory (Flash) | 512 KB with ECC, dual-panel |
| SRAM | 192 KB |
| Operating Voltage Range | 1.71 V to 3.6 V |
| Encapsulamento | 100-pin TQFP (14x14 mm) |
| Faixa de temperatura de operação | -40 C to +125 C (industrial, -AFT suffix) |
| ADC | 12-bit, up to 1 MSPS, 16 channels |
| DAC | 12-bit, 2 channels |
| USB | USB 2.0 Full-Speed device/host with on-chip PHY |
| CAN | 2x CAN-FD controllers |
| SERCOM (UART/SPI/I2C) | 8 instances, configurable |
| I2S | Yes (audio interface) |
| PTC (Touch Controller) | Yes, hardware capacitive touch |
| DMA Channels | 32 (with linked list descriptors) |
| Timers/Counters | 8x 16-bit TCC, 5x 32-bit TC, RTC |
| Tipo de montagem | Surface Mount |
| Nível MSL | 3 (168 hours, JEDEC J-STD-020) |
| Status RoHS | Compliant |
| Packaging | Tape & Reel (T&R) |
Configuração de pinos do ATSAME51N19A-AFT
| Pino 1 | PD0 — GPIO / SERCOM |
| Pino 2 | PD1 — GPIO / SERCOM |
| Pino 3 | PD2 — GPIO / SERCOM |
| Pino 4 | PD3 — GPIO / SERCOM |
| Pino 5 | VDD — Digital supply input |
| Pino 6 | VSS — Digital ground |
| Pino 7 | PD4 — GPIO / SERCOM |
| Pino 8 | PD5 — GPIO / SERCOM |
| Pino 9 | PD6 — GPIO / SERCOM |
| Pino 10 | PD7 — GPIO / SERCOM |
| Pino 11 | PD8 — GPIO / SERCOM |
| Pino 12 | PD9 — GPIO / SERCOM |
| Pino 13 | PD10 — GPIO / SERCOM |
| Pino 14 | PD11 — GPIO / SERCOM |
| Pino 15 | PD12 — GPIO / SERCOM |
| Pino 16 | PD13 — GPIO / SERCOM |
| Pino 17 | PD14 — GPIO / SERCOM |
| Pino 18 | PD15 — GPIO / SERCOM |
| Pino 19 | PC0 — GPIO / SERCOM |
| Pino 20 | PC1 — GPIO / SERCOM |
| Pino 21 | PC2 — GPIO / SERCOM |
| Pino 22 | PC3 — GPIO / SERCOM |
| Pino 23 | VSS — Digital ground |
| Pino 24 | VDD — Digital supply input |
| Pino 25 | PC4 — GPIO / SERCOM |
| Pino 26 | PC5 — GPIO / SERCOM |
| Pino 27 | PC6 — GPIO / SERCOM |
| Pino 28 | PC7 — GPIO / SERCOM |
| Pino 29 | PC8 — GPIO / SERCOM |
| Pino 30 | PC9 — GPIO / SERCOM |
| Pino 31 | PC10 — GPIO / SERCOM |
| Pino 32 | PC11 — GPIO / SERCOM |
| Pino 33 | PC12 — GPIO / SERCOM |
| Pino 34 | PC13 — GPIO / SERCOM |
| Pino 35 | PC14 — GPIO / SERCOM |
| Pino 36 | PC15 — GPIO / SERCOM |
| Pino 37 | PC16 — GPIO / SERCOM |
| Pino 38 | PC17 — GPIO / SERCOM |
| Pino 39 | PC18 — GPIO / SERCOM |
| Pino 40 | PC19 — GPIO / SERCOM |
| Pino 41 | PC20 — GPIO / SERCOM |
| Pino 42 | PC21 — GPIO / SERCOM |
| Pino 43 | VDDCORE — Core voltage decoupling |
| Pino 44 | VSS — Digital ground |
| Pino 45 | PB0 — GPIO / SERCOM |
| Pino 46 | PB1 — GPIO / SERCOM |
| Pino 47 | PB2 — GPIO / SERCOM |
| Pino 48 | PB3 — GPIO / SERCOM |
| Pino 49 | PB4 — GPIO / SERCOM |
| Pino 50 | PB5 — GPIO / SERCOM |
| Pino 51 | PB6 — GPIO / SERCOM |
| Pino 52 | PB7 — GPIO / SERCOM |
| Pino 53 | PB8 — GPIO / SERCOM |
| Pino 54 | PB9 — GPIO / SERCOM |
| Pino 55 | PB10 — GPIO / SERCOM |
| Pino 56 | PB11 — GPIO / SERCOM |
| Pino 57 | PB12 — GPIO / SERCOM |
| Pino 58 | PB13 — GPIO / SERCOM |
| Pino 59 | PB14 — GPIO / SERCOM |
| Pino 60 | PB15 — GPIO / SERCOM |
| Pino 61 | PB16 — GPIO / SERCOM |
| Pino 62 | PB17 — GPIO / SERCOM |
| Pino 63 | PB18 — GPIO / SERCOM |
| Pino 64 | PB19 — GPIO / SERCOM |
| Pino 65 | PB20 — GPIO / SERCOM |
| Pino 66 | PB21 — GPIO / SERCOM |
| Pino 67 | VDD — Digital supply input |
| Pino 68 | VSS — Digital ground |
| Pino 69 | PA0 — GPIO / SERCOM |
| Pino 70 | PA1 — GPIO / SERCOM |
| Pino 71 | PA2 — GPIO / SERCOM |
| Pino 72 | PA3 — GPIO / SERCOM |
| Pino 73 | PA4 — GPIO / SERCOM |
| Pino 74 | PA5 — GPIO / SERCOM |
| Pino 75 | PA6 — GPIO / SERCOM |
| Pino 76 | PA7 — GPIO / SERCOM |
| Pino 77 | PA8 — GPIO / SERCOM |
| Pino 78 | PA9 — GPIO / SERCOM |
| Pino 79 | PA10 — GPIO / SERCOM |
| Pino 80 | PA11 — GPIO / SERCOM / USB DM |
| Pino 81 | PA12 — GPIO / SERCOM / USB DP |
| Pino 82 | PA13 — GPIO / SERCOM |
| Pino 83 | PA14 — GPIO / SERCOM |
| Pino 84 | PA15 — GPIO / SERCOM |
| Pino 85 | PA16 — GPIO / SERCOM |
| Pino 86 | PA17 — GPIO / SERCOM |
| Pino 87 | PA18 — GPIO / SERCOM |
| Pino 88 | PA19 — GPIO / SERCOM |
| Pino 89 | PA20 — GPIO / SERCOM |
| Pino 90 | PA21 — GPIO / SERCOM |
| Pino 91 | PA22 — GPIO / SERCOM |
| Pino 92 | PA23 — GPIO / SERCOM |
| Pino 93 | PA24 — GPIO / SERCOM |
| Pino 94 | PA25 — GPIO / SERCOM |
| Pino 95 | VDDANA — Analog supply input |
| Pino 96 | VSS — Analog ground |
| Pino 97 | XIN — Crystal oscillator input |
| Pino 98 | XOUT — Crystal oscillator output |
| Pino 99 | VDD — Digital supply input |
| Pino 100 | RESET — Active-low reset input |
Aplicações típicas
ATSAME51N19A-AFT é adequado para 7 aplicaçãos: Industrial USB HID Devices, CAN-FD Automotive Body Controllers, Smart Energy Metering, IoT Sensor Hubs with USB-C Connectivity, Building Automation Controllers, Consumer USB Audio Devices, Capacitive Touch HMI Panels.
Industrial USB HID Devices
The ATSAME51N19A-AFT's integrated USB 2.0 Full-Speed device/host with on-chip PHY eliminates external transceiver components, reducing BOM cost and PCB area for industrial USB HID peripherals such as barcode scanners, programmable keypads, and ruggedized mice. The 120 MHz Cortex-M4F core handles USB HID report processing and debouncing with ample margin, while 192 KB SRAM supports USB descriptor and HID report buffers. Compared to MCUs requiring external USB PHYs, the ATSAME51N19A-AFT reduces component count by 3-5 parts and shortens the USB certification path. The -40C to +125C operating range suits factory-floor deployment with no active cooling.
Recomendado
CAN-FD Automotive Body Controllers
The ATSAME51N19A-AFT integrates two independent CAN-FD controllers, supporting modern vehicle body networks running at up to 5 Mbps payload throughput with the classic CAN 2.0B fallback for legacy ECUs. The dual-panel Flash allows in-field firmware updates on one bank while the other executes, critical for OEM software delivery via CAN-FD UDS (ISO 14229) without bricking the BCM. With -40C to +125C operation, the ATSAME51N19A-AFT handles under-dash and behind-glovebox thermal environments. The 12-bit 1 MSPS ADC monitors analog sensor inputs for lighting, wipers, and door modules.
Recomendado
Smart Energy Metering
The ATSAME51N19A-AFT's 12-bit 1 MSPS ADC combined with the Cortex-M4F DSP extensions accelerates real-time energy metering algorithms for single-phase smart electricity meters, including RMS voltage/current, harmonic analysis up to the 13th, and tamper detection. The 512 KB Flash stores metering firmware, calibration tables, and DLMS/COSEM communication stacks (IEC 62056), while 192 KB SRAM buffers sampled ADC data without DMA bottleneck. Operating from -40C to +125C, the ATSAME51N19A-AFT handles outdoor meter enclosures. The dual-panel Flash also supports secure firmware upgrade via optical port per IEC 62056-21.
Recomendado
IoT Sensor Hubs with USB-C Connectivity
The ATSAME51N19A-AFT's USB 2.0 Full-Speed device/host with USB-C PD negotiation support makes it a single-chip IoT gateway hub that aggregates sensors via SERCOM UART/SPI/I2C and bridges them to a USB-C host. The 192 KB SRAM buffers aggregated sensor streams, while 512 KB Flash stores local MQTT/CoAP stacks for offline operation. The integrated USB-C PD controller via TCPCI lines (with external TCPC) allows the hub to negotiate power roles up to 100 W sink/source. Compared to USB-less MCUs, the ATSAME51N19A-AFT eliminates the need for an external USB bridge chip.
Recomendado
Building Automation Controllers
The ATSAME51N19A-AFT serves as a central controller in BACnet/Modbus building automation systems, managing HVAC actuators, lighting dimmers, and access control readers. Its 8 SERCOM instances connect to multiple RS-485 transceivers for Modbus RTU and BACnet MS/TP, while dual CAN-FD controllers handle high-speed elevator or fire-alarm networks. The 120 MHz core executes real-time control loops for HVAC damper/valve positioning. With -40C to +125C operation and 512 KB Flash, the ATSAME51N19A-AFT is suitable for basement mechanical room installation.
Recomendado
Consumer USB Audio Devices
The ATSAME51N19A-AFT integrates a full-speed USB 2.0 audio class device with I2S peripheral, providing a single-chip solution for USB-C headphones, USB microphones, and USB DACs up to 96 kHz/24-bit audio. The Cortex-M4F DSP extensions handle sample rate conversion and basic equalization, while 192 KB SRAM buffers audio streams to eliminate USB underruns. The integrated 12-bit DAC enables low-cost headphone designs without external audio codec, although audiophile designs should pair the ATSAME51N19A-AFT with an external 24-bit DAC over I2S. Industrial -40C to +125C range supports automotive infotainment environments.
Recomendado
Capacitive Touch HMI Panels
The ATSAME51N19A-AFT's hardware Peripheral Touch Controller (PTC) supports up to 256 capacitive touch channels, enabling sophisticated touch HMI panels for industrial control panels, appliance interfaces, and smart home control units. The PTC operates independently of the CPU, scanning touch sensors at low power while the Cortex-M4F sleeps, then waking on touch event. With -40C to +125C operation, the ATSAME51N19A-AFT handles outdoor and appliance-front-panel environments where the E51's integrated ADC also reads analog sliders and proximity sensors.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAME51N19A-AFT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAME51N20A-AFT | ATSAME54N20A-AFT | ATSAMD51N19A-AFT | ATSAMD51N20A-AF | ATSAME51J19A-AFT |
|---|---|---|---|---|---|---|
| Package | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) | 100-TQFP (14x14) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | 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 | 1 MB | 1 MB | 512 KB | 1 MB | 512 KB |
| SRAM | 192 KB | 256 KB | 256 KB | 192 KB | 256 KB | 192 KB |
| USB 2.0 FS with on-chip PHY | Yes | Yes | Yes | Yes | Yes | Yes |
| CAN-FD Controllers | 2 | 2 | 2 | 2 | 2 | 2 |
| Integrated ADC | 12-bit, 1 MSPS (SAM E51 feature) | 12-bit, 1 MSPS | 12-bit, 1 MSPS | No (SAM D51 lacks ADC) | No (SAM D51 lacks ADC) | 12-bit, 1 MSPS |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
Principais diferenciais
- Integrated 12-bit 1 MSPS ADC and 12-bit DAC (vs ATSAMD51N19A-AFT)
- 1 MB Flash upgrade path with same pinout (vs ATSAME51N20A-AFT)
- Industrial -40C to +125C operating range (vs Commercial-grade ATSAM variants)
- Dual-panel Flash with ECC (vs Single-bank Cortex-M4 MCUs)
Notas de projeto
Estimated: VDDCORE pin requires a 1 uF + 100 nF ceramic decoupling pair placed within 3 mm of the package to ensure stable core voltage regulation. VDDANA should have its own 1 uF + 100 nF pair, and AVDH can share with VDDANA but requires a ferrite bead for ADC noise isolation. Bulk 10 uF ceramic on each supply rail handles transient current demands up to 80 mA during ADC conversions. Power sequencing: VDD and VDDANA must ramp together within 1 ms; failure to meet this causes latch-up risk on the SAM E51 internal ESD structures.
The 100-TQFP package has theta_JA of approximately 40 C/W on a 4-layer JEDEC EIA/JESD51-7 test board. Estimated: at full 120 MHz operation with all peripherals active, the core draws approximately 25 mA, dissipating roughly 30 mW at 1.2 V core - negligible heating. However, switching all GPIO at 50 MHz simultaneously adds another 40-60 mW. For +125C ambient operation, ensure at least 8 cm^2 of uninterrupted copper pour on the top layer connected to GND for thermal spreading.
Route the 12 MHz crystal traces (XIN/XOUT) as short as possible, no longer than 5 mm, with the crystal load capacitors (8-12 pF typical) within 3 mm of the pins. Keep the USB DP/DM traces matched within 0.5 mm and no longer than 50 mm to maintain USB 2.0 FS signal integrity; route over an unbroken ground plane and avoid crossing any noisy power or switching signals. The 100-TQFP has 0.5 mm pitch - use 0.20 mm trace width with 0.10 mm clearance per IPC-2222 Class 2 design rules.
Common pitfalls with the ATSAME51N19A-AFT: (1) Forgetting to configure the dual-panel Flash for AHB1/AHB2 split in the NVMCTRL controller - code reading from one bank while writing the other requires both the BOOTPROT and EEPROM enable bits to be correctly set, otherwise in-field firmware update silently fails. (2) Configuring SERCOM pads with the wrong peripheral multiplexer in PORT - the SERCOM I/O mapping table in section 6 of the SAM E51 datasheet must be consulted, and wrong mapping results in 'no communication' debug sessions. (3) USB host mode requires external 5V VBUS generation with current limiting - the SAM E51 cannot source VBUS on its own.
For CAN-FD operation at 5 Mbps, the ATSAME51N19A-AFT's CAN pins require external CAN transceivers (such as MCP2561FD or TLE9251VSJ) with split termination (60 ohm + 4.7 nF to ground on each end) to meet ISO 11898-2:2016 signal integrity requirements. Add 100 ohm TVS diodes on CANH/CANL for automotive transient protection per ISO 7637-2. The internal CAN-FD controller supports both classic CAN 2.0B and ISO CAN-FD frames, but CAN-FD mode requires the bus timing to be reconfigured via the CAN_NBTP and CAN_DBTP registers before high-speed data phase activation.
Informações de conformidade
RoHS compliant per Microchip product page. -AFT suffix indicates industrial -40C to +125C operating temperature, NOT AEC-Q100 automotive qualification. For AEC-Q100 qualified automotive variants, use ATSAME51N19A-AFT-MF or contact Microchip. Halogen-free per Microchip material declaration. REACH compliant.
