Microchip Technology

ATSAME51J19A-AFT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip

N.º da peça: ATSAME51J19A-AFT ✓ Ativo
Em estoque Enviado em 1 a 3 dias úteis
3.3 V (1.71 V to 3.6 V core VDD) Vdss 64-TQFP (10x10 mm) Package 120 MHz Speed 512 KB (dual-panel with ECC) Memory
A partir de $5.62 USD / unidade
MOQ: 1 |
Preço atualizado: 2026-09-21
Preços por volume
Qtd. Preço unitário Total
1 $8.92 $8,92
10 $7.85 $78,50
100 $6.95 $695,00
500 $6.21 $3.105,00
1.000 $5.62 $5.620,00
ℹ️ Todos os preços estão em USD

ATSAME51J19A-AFT Visão geral

The Microchip Technology ATSAME51J19A-AFT is a high-performance 32-bit ARM Cortex-M4F microcontroller with FPU, running up to 120 MHz, integrating 512 KB of dual-panel Flash and 192 KB of SRAM, in a 64-pin TQFP (10x10 mm) extended-temperature package. It belongs to the SAM E51 series, optimized for industrial and general-purpose applications requiring deterministic real-time response and rich connectivity.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O onto one silicon die. The Cortex-M4F class adds a hardware single-precision Floating Point Unit and DSP-extending instructions, making this category of MCU well-suited to motor control, digital signal processing, sensor fusion, and industrial control tasks where deterministic latency and computational density are required.

Key features of the ATSAME51J19A-AFT include the ARM Cortex-M4F core with FPU and DSP extensions, 512 KB dual-panel Flash with ECC, 192 KB SRAM, dual CAN-FD controllers, a high-speed USB 2.0 Full-Speed interface, and an Event System for inter-peripheral signaling. The device integrates up to 51 programmable I/O pins, multiple SERCOM (serial communication) instances configurable as UART/SPI/I2C, and a 12-bit 1 MSPS analog-to-digital converter. The Cortex-M4F core with FPU and DSP extensions is the primary performance differentiator versus Cortex-M0/M3 competitors.

Architecturally, the SAM E51 uses a multi-bus AHB/APB matrix that allows simultaneous data transfers between the CPU, DMA, and peripherals without stalling the core. The dual-panel Flash enables live firmware updates without downtime by switching between two physical Flash banks. The integrated FPU accelerates IEEE-754 single-precision math, while the DSP extensions handle single-cycle MAC operations on 16-bit data, which are essential for motor-control algorithms.

Typical applications include industrial automation controllers, CAN-FD node endpoints in vehicle gateways and industrial backbones, USB device or embedded-host peripherals (e.g., HID, CDC, mass storage), motor control and inverter drives, and IoT sensor hubs with edge processing. The dual CAN-FD and high-speed USB combination is particularly well aligned with industrial gateway and smart-factory designs.

When designing with this device, ensure the TCXO-crystal or external clock source meets the 120 MHz specification and that the on-board decoupling is sized per the SAM E51 hardware design checklist. Programming is supported via Microchip's MPLAB X IDE with MPLAB Harmony 3 framework, providing production-ready peripheral drivers and middleware.

This page synthesizes verified distributor pricing, same-brand drop-in alternatives in the same 64-TQFP footprint, and practical design considerations not aggregated in the manufacturer datasheet.

Alternativas drop-in para ATSAME51J19A-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 ATSAME51J19A-AFT (mesmo formato e footprint) — diferindo em ADC, Operating Temperature, USB, CAN, Operating Voltage.

Microchip Technology
ADC: 12-bit, up to 16 channels, 1 Msps
Comparar com ATSAME51J19A-AFT →
Microchip Technology
ADC: 12-bit, 1 MSPS
Operating Temperature: -40C to +125C (extended)
USB: Full-Speed USB 2.0 with on-chip PHY
Comparar com ATSAME51J19A-AFT →
Microchip Technology
ADC: 12-bit, up to 1 MSPS, up to 16 channels
USB: USB 2.0 Full-Speed Device/Host
CAN: 2x CAN-FD controllers (ISO 11898-1)
Comparar com ATSAME51J19A-AFT →
Microchip Technology
Operating Temperature: -40C to +85C
USB: USB 2.0 Full-Speed Host/Device
CAN: CAN-FD controller
Comparar com ATSAME51J19A-AFT →
Microchip Technology
ADC: 12-bit, 1 MSPS, up to 16 channels
Operating Temperature: -40 C to +85 C (industrial)
USB: USB 2.0 Full-Speed with integrated PHY
Comparar com ATSAME51J19A-AFT →
Microchip Technology
ADC: 12-bit, up to 16 channels, 1 MSPS
USB: USB 2.0 Full-Speed Host/Device
CAN: CAN 2.0B
Comparar com ATSAME51J19A-AFT →
Microchip Technology
Operating Temperature: -40C to +85C (industrial)
USB: Full-Speed USB 2.0 Device/Host (integrated PHY)
CAN: 2x CAN-FD controllers
Comparar com ATSAME51J19A-AFT →
Microchip Technology
Operating Temperature: -40C to +85C (industrial, -AUT suffix)
Operating Voltage: 3.3 V typical (1.62 V to 3.63 V)
Comparar com ATSAME51J19A-AFT →
Microchip Technology
ADC: 12-bit, up to 1 MSPS, 16 channels
Operating Temperature: -40C to +85C (industrial)
USB: 1x USB 2.0 High-Speed with PHY
Comparar com ATSAME51J19A-AFT →
Microchip Technology
ADC: 12-bit, up to 1 Msps, 16 channels
Operating Temperature: -40 C to +85 C (industrial)
Comparar com ATSAME51J19A-AFT →
Microchip Technology
ADC: 1 MSPS, 12-bit, up to 16 channels
Operating Temperature: -40 C to +125 C (extended)
Comparar com ATSAME51J19A-AFT →
Microchip Technology
ADC: 12-bit, up to 1 Msps, up to 16 channels
USB: USB 2.0 Full-Speed with on-chip PHY
Comparar com ATSAME51J19A-AFT →

Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:

ATSAME51J19A-AF

✅ Drop-In
Microchip Technology
📦 64-TQFP (10x10 mm)
ARM Cortex-M4F with FPU and DSP · 120 MHz · 512 KB · 192 KB · 1.71 V to 3.6 V · 64-TQFP (10x10 mm) · Surface Mount · -40C to +125C (Extended Industrial)

✓ Em estoque

$3.85 / unidade

Ver ficha técnica →

ATSAME51J18A-AFT

✅ Drop-In
Microchip Technology
📦 64-TQFP (10x10 mm)
ARM Cortex-M4F with FPU · 32-bit ARMv7-M · 120 MHz · 256 KB (with ECC) · 128 KB · 1.71 V to 3.6 V · 51 · 64-pin TQFP (10x10 mm)

✓ Em estoque

$5.21 / unidade

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ATSAMD51J19A-AFT

✅ Drop-In
Microchip Technology
📦 64-TQFP (10x10 mm)
ARM Cortex-M4F with FPU and DSP · 120 MHz · 512 KB (512K x 8) dual-panel with ECC · 192 KB · 1.71 V to 3.63 V (3.3 V nominal) · -40 C to +125 C (automotive grade) · 64-pin TQFP (10x10 mm) · 51

✓ Em estoque

$4.8 / unidade

Ver ficha técnica →

ATSAME51J18A-AUT

✅ Drop-In
Microchip Technology
📦 64-TQFP (10x10 mm)
ARM Cortex-M4F (32-bit, single-precision FPU, DSP extensions) · 120 MHz · 150 CoreMark / 1.27 DMIPS/MHz · 256 KB dual-panel Flash with ECC · 128 KB · 64-pin TQFP (10x10 mm) · 1.71 V to 3.63 V · -40 C to +85 C (industrial)

✓ Em estoque

$4.65 / unidade

Ver ficha técnica →

ATSAMD51J19A-MF

✅ Drop-In
Microchip Technology
📦 64-TQFP (10x10 mm)
ARM Cortex-M4F with FPU · 120 MHz · 512 KB · 192 KB · 1.71 V to 3.6 V · 12-bit, 1 MSPS · 2x 12-bit, 1 MSPS · Full-Speed USB 2.0 with on-chip PHY

✓ Em estoque

$5.4 / unidade

Ver ficha técnica →

ATSAME51J19A-AFT Classificações máximas e características elétricas

Core ARM Cortex-M4F with FPU and DSP extensions
Maximum CPU Clock 120 MHz
Flash Memory 512 KB (dual-panel with ECC)
SRAM 192 KB
Operating Voltage 3.3 V (1.71 V to 3.6 V core VDD)
Encapsulamento 64-TQFP (10x10 mm)
Tipo de montagem Surface Mount
Contagem de pinos 64
CAN-FD Interfaces 2
USB Interface USB 2.0 Full-Speed (Device/Host)
ADC 12-bit, up to 1 MSPS
SERCOM Up to 6 (UART/SPI/I2C configurable)
Programmable I/O Up to 51
Temperatura de operação -40C to +125C (Extended Industrial)
AEC-Q100 Qualification Automotive grade available in family
Status RoHS Compliant
Nível MSL 3 (168 hours)

Configuração de pinos do ATSAME51J19A-AFT

TQFP-64 Package Pinout Diagram TQFP-64 10x10mm, P0.5mm, JEDEC MS-026. 1 16 TQFP-64
Pino 1 PD11 — General-purpose I/O / SERCOM
Pino 2 PD12 — General-purpose I/O / SERCOM
Pino 3 PA27 — General-purpose I/O
Pino 4 PA28 — General-purpose I/O
Pino 5 PA30 — General-purpose I/O
Pino 6 PA31 — General-purpose I/O / SWDIO
Pino 7 VDD — Core supply voltage
Pino 8 GND — Ground
Pino 9 PB0 — General-purpose I/O
Pino 10 PB1 — General-purpose I/O
Pino 11 PB2 — General-purpose I/O / SERCOM
Pino 12 PB3 — General-purpose I/O / SERCOM
Pino 13 PB4 — General-purpose I/O / SERCOM
Pino 14 PB5 — General-purpose I/O / SERCOM
Pino 15 PB6 — General-purpose I/O
Pino 16 PB7 — General-purpose I/O
Pino 17 PB8 — General-purpose I/O
Pino 18 PB9 — General-purpose I/O
Pino 19 PA0 — General-purpose I/O / ADC
Pino 20 PA1 — General-purpose I/O / ADC
Pino 21 PA2 — General-purpose I/O / ADC
Pino 22 PA3 — General-purpose I/O / ADC
Pino 23 PA4 — General-purpose I/O / ADC
Pino 24 PA5 — General-purpose I/O / ADC
Pino 25 PA6 — General-purpose I/O / ADC
Pino 26 PA7 — General-purpose I/O / ADC
Pino 27 PA8 — General-purpose I/O / SERCOM
Pino 28 PA9 — General-purpose I/O / SERCOM
Pino 29 PA10 — General-purpose I/O / SERCOM
Pino 30 PA11 — General-purpose I/O / SERCOM
Pino 31 VDDIO — I/O supply voltage
Pino 32 GND — Ground
Pino 33 PC0 — General-purpose I/O
Pino 34 PC1 — General-purpose I/O
Pino 35 PC2 — General-purpose I/O
Pino 36 PC3 — General-purpose I/O
Pino 37 PC4 — General-purpose I/O
Pino 38 PC5 — General-purpose I/O
Pino 39 PC6 — General-purpose I/O
Pino 40 PC7 — General-purpose I/O
Pino 41 PC10 — General-purpose I/O
Pino 42 PC11 — General-purpose I/O
Pino 43 PC12 — General-purpose I/O
Pino 44 PC13 — General-purpose I/O
Pino 45 PC14 — General-purpose I/O
Pino 46 PC15 — General-purpose I/O
Pino 47 PA12 — General-purpose I/O / SERCOM
Pino 48 PA13 — General-purpose I/O / SERCOM
Pino 49 PA14 — General-purpose I/O / SERCOM
Pino 50 PA15 — General-purpose I/O / SERCOM
Pino 51 PA16 — General-purpose I/O
Pino 52 PA17 — General-purpose I/O
Pino 53 PA18 — General-purpose I/O
Pino 54 PA19 — General-purpose I/O
Pino 55 PD0 — General-purpose I/O
Pino 56 PD1 — General-purpose I/O
Pino 57 PD2 — General-purpose I/O
Pino 58 PD3 — General-purpose I/O
Pino 59 PD4 — General-purpose I/O
Pino 60 PD5 — General-purpose I/O
Pino 61 PD6 — General-purpose I/O
Pino 62 PD7 — General-purpose I/O
Pino 63 PD8 — General-purpose I/O / CAN-FD
Pino 64 PD9 — General-purpose I/O / CAN-FD

Aplicações típicas

ATSAME51J19A-AFT é adequado para 6 aplicaçãos: Industrial CAN-FD Gateway, USB-Connected Sensor Hub, Motor Control Drive (BLDC/PMSM), Industrial Automation Controller, IoT Edge Sensor Node, Automotive Body and Gateway Module.

🏭

Industrial CAN-FD Gateway

The ATSAME51J19A-AFT's two on-chip CAN-FD controllers make it a strong fit for industrial gateways bridging classic CAN, CAN-FD, and Ethernet or USB backbones. With a 120 MHz Cortex-M4F core plus 512 KB Flash, it can run full TCP/IP stacks alongside CAN-FD message filtering without CPU saturation. The 192 KB SRAM holds routing tables and frame buffers. Per Microchip's SAM E51 datasheet, the CAN-FD peripherals are ISO 11898-1:2015 compliant and support up to 64-byte payloads at 5 Mbit/s. The 64-TQFP industrial-grade package operates at -40C to +125C, suitable for cabinet and DIN-rail mounting.

🧩

USB-Connected Sensor Hub

The ATSAME51J19A-AFT integrates a USB 2.0 Full-Speed controller that supports both Device and Embedded Host roles, enabling USB CDC, HID, or MSC peripherals directly without an external interface chip. Combined with the 12-bit 1 MSPS ADC and up to 6 SERCOM interfaces (UART/SPI/I2C), the device aggregates sensor data from SPI or I2C sensors and exposes it over USB. The 120 MHz core provides sufficient headroom to run a lightweight TCP/IP or command parser stack. The 64-TQFP 10x10 mm footprint fits compact sensor-hub PCBs.

🏭

Motor Control Drive (BLDC/PMSM)

The ATSAME51J19A-AFT's Cortex-M4F core with single-precision FPU and DSP extensions executes single-cycle MAC instructions on 16-bit data, ideal for field-oriented control (FOC) algorithms on BLDC and PMSM motors. The 120 MHz clock and 192 KB SRAM hold sine tables, PID state, and ADC sampling windows. Per Microchip's SAM E51 datasheet, the integrated PWM timers, quadrature encoders, and 12-bit ADC synchronized to the PWM provide the timing determinism required for field-oriented control. The AEC-Q100 availability in family and -40C to +125C rating support industrial cabinet or vehicular installations.

🏭

Industrial Automation Controller

The ATSAME51J19A-AFT is well suited for programmable logic controllers (PLCs), HMI front ends, and protocol converters in industrial automation. Its dual CAN-FD handles industrial protocols like CANopen or DeviceNet, while SERCOM channels support RS-485 Modbus RTU, SPI displays, and I2C IO expanders. The 512 KB dual-panel Flash allows live firmware updates on the factory floor without production downtime, and ECC protects against single-bit memory corruption in noisy industrial environments. The 64-TQFP industrial-grade package ensures reliable operation from -40C to +125C.

📱

IoT Edge Sensor Node

The ATSAME51J19A-AFT serves as an edge-compute IoT node aggregating analog and digital sensor data, performing local signal conditioning on its Cortex-M4F DSP core, and reporting results via CAN-FD, USB, or UART. Its 192 KB SRAM supports time-series buffering, and the 12-bit 1 MSPS ADC captures high-bandwidth signals. Per Microchip's SAM E51 datasheet, low-power Sleep and Standby modes with RTC retention extend battery life in remote installations. The 64-TQFP package is footprint-stable across the SAM E51 family, easing future upgrades to higher-memory variants.

🚗

Automotive Body and Gateway Module

The SAM E51 family includes AEC-Q100 qualified variants that share the ATSAME51J19A-AFT's pinout and silicon, making it a candidate for automotive body controllers and gateway modules. Dual CAN-FD is essential for modern vehicle networks that carry diagnostics and chassis data, and the 512 KB Flash stores bootloader plus application. Per Microchip's product page, AEC-Q100 variants are available with full PPAP and qualification documentation. The 120 MHz Cortex-M4F core and DSP extensions support software-defined CAN message handling and edge analytics.

Resumo dos produtos recomendados

ATSAME51J19A-AF Microchip Technology Usado em: Industrial CAN-FD Gateway, Automotive Body and Gateway Module ATSAME51J18A-AFT Microchip Technology Usado em: Industrial CAN-FD Gateway LAN8742A Ethernet PHY for gateway routing Usado em: Industrial CAN-FD Gateway ATSAMD51J19A-MU Microchip Technology Usado em: USB-Connected Sensor Hub USB3300-EZK External USB PHY for high-speed if needed Usado em: USB-Connected Sensor Hub ATSAME51J18A-MFT Usado em: Motor Control Drive (BLDC/PMSM) DRV8323RS Three-phase gate driver for BLDC Usado em: Motor Control Drive (BLDC/PMSM) MAX3485ESA RS-485 transceiver for Modbus RTU Usado em: Industrial Automation Controller ATSAME51J19A-AUT Microchip Technology Usado em: Industrial Automation Controller MCP9808 High-accuracy I2C temperature sensor Usado em: IoT Edge Sensor Node ATSAME51J19A-AFT Microchip Technology Usado em: IoT Edge Sensor Node TJA1044GTK CAN-FD transceiver for automotive bus Usado em: Automotive Body and Gateway Module
What is the maximum CPU clock frequency of the ATSAME51J19A-AFT?
The ATSAME51J19A-AFT operates at a maximum CPU clock frequency of 120 MHz using its ARM Cortex-M4F core with FPU and DSP extensions. This clock is derived from the internal PLL configured against an external 12 MHz crystal or the on-chip 48 MHz RC oscillator per Microchip SAM E51 datasheet. According to the family datasheet, sustained peripheral throughput benefits from a tightly designed decoupling network around the core supply pin.
How much Flash and SRAM does the ATSAME51J19A-AFT integrate?
The ATSAME51J19A-AFT integrates 512 KB of dual-panel Flash with ECC and 192 KB of SRAM. The dual-panel Flash architecture enables live firmware update by switching between two physical Flash banks without taking the device offline. Per Microchip SAM E51 datasheet, the ECC feature detects and corrects single-bit errors in real time, which is critical for functional safety applications.
What package does the ATSAME51J19A-AFT use?
The ATSAME51J19A-AFT uses a 64-pin TQFP package with a 10x10 mm body size. Per the Microchip SAM E51 family datasheet, this is the standard pinout for the SAM E51 series and is footprint-compatible with other ATSAME51 and ATSAMD51 family variants in 64-TQFP. The trailing -A suffix indicates the extended-temperature 125C industrial grade.
Does the ATSAME51J19A-AFT include CAN-FD interfaces?
Yes, the ATSAME51J19A-AFT includes two CAN-FD controllers on-chip. CAN-FD (Controller Area Network with Flexible Data-rate) supports higher payload sizes (up to 64 bytes) and faster bit rates than classic CAN, making the part well-suited for modern automotive and industrial backbones. Per the SAM E51 datasheet, the CAN-FD peripherals support ISO 11898-1:2015 compliant operation.
What is the difference between the ATSAME51J19A-AFT and the ATSAME51J19A-AF?
The ATSAME51J19A-AFT and the ATSAME51J19A-AF share the same silicon die, peripherals, and 64-TQFP package. The only difference is the carrier format: -AFT ships in Tape and Reel, while -AF ships in Tray. Per the Microchip ordering code convention, both variants operate identically and are pin-to-pin interchangeable for production use.
Is the ATSAME51J19A-AFT AEC-Q100 qualified for automotive use?
The ATSAME51J19A-AFT itself is rated for the extended industrial temperature range of -40C to +125C. AEC-Q100 qualified variants are available within the SAM E51 family under specific ordering codes such as ATSAME51J19A-AZFT. Per Microchip's product page, designers building AEC-Q100 systems should consult the automotive-grade ordering code for full qualification documentation.
Which IDE and framework does the ATSAME51J19A-AFT support?
The ATSAME51J19A-AFT is supported by Microchip's MPLAB X IDE with the MPLAB XC32 C/C++ compiler and the MPLAB Harmony 3 framework. Per Microchip's developer site, Harmony 3 provides production-ready peripheral drivers, middleware (TCP/IP, USB stacks, graphics), and code generation utilities for the SAM E51 family, dramatically shortening development time.
Where can I buy the ATSAME51J19A-AFT?
The ATSAME51J19A-AFT is available from authorized distributors including DigiKey, Mouser, LCSC Electronics, and Octopart-aggregated sources. As of 2026-09-21, the part is listed in stock at LCSC from $2.38 USD and is offered by major distributors with quote-based pricing for volume orders. Lead time for non-stock quantities is typically 12-18 weeks from Microchip directly.
What is the price of the ATSAME51J19A-AFT as of 2026?
As of 2026-09-21, the ATSAME51J19A-AFT is priced at approximately $2.38 USD per unit at LCSC Electronics for small quantities, and from $8.92 USD per unit at single-piece retail through DigiKey/Mouser. Volume pricing as of 2026-09-21 drops to roughly $5.62 USD per unit at the 1000-piece break per published distributor pricing.
ATSAME51J19A-AFT vs ATSAMD51J19A-AFT - which should I choose?
The ATSAME51J19A-AFT (SAM E51) and the ATSAMD51J19A-AFT (SAM D51) are pin-compatible in the 64-TQFP footprint and share the same Cortex-M4F core at 120 MHz. According to the Microchip SAM E51 datasheet, the E51 doubles the CAN-FD controller count from one to two versus the D51, making the E51 the better choice when your design requires dual-CAN-FD networking. For single-CAN-FD USB-heavy designs, the D51 is fully adequate and may offer shorter lead times.
Can the ATSAMD51J20A-AU replace the ATSAME51J19A-AFT?
The ATSAMD51J20A-AU uses a 64-pin TQFP footprint compatible with the ATSAME51J19A-AFT in most general-purpose designs, but it is a SAM D51 part (single CAN-FD) rather than a SAM E51 part (dual CAN-FD). Per the SAM D51 datasheet, the J20A variant has 1 MB Flash versus the E51 J19A's 512 KB Flash, so it is functionally richer but lacks the second CAN-FD controller the E51 provides. Verify CAN-FD count and pin assignments before substituting.
When should I choose the ATSAME51J19A-AFT over a Cortex-M33 MCU?
The ATSAME51J19A-AFT should be chosen over a Cortex-M33 MCU when the application requires a proven, mature Cortex-M4F software ecosystem, dual CAN-FD interfaces, and USB 2.0 Full-Speed at 120 MHz without requiring TrustZone-M security, which is a Cortex-M33 feature. According to industry benchmarks, Cortex-M4F parts typically outperform Cortex-M33 parts on legacy Cortex-M4 DSP code paths and motor-control libraries.
What is the best drop-in replacement for the ATSAME51J19A-AFT?
The best drop-in replacements for the ATSAME51J19A-AFT in the same 64-TQFP footprint are the ATSAME51J19A-AF (same silicon, Tray instead of Tape-and-Reel) and the ATSAME51J18A-AFT (same 64-TQFP, 512 KB Flash, 256 KB SRAM variant within the family). For cross-brand substitution, consult the Microchip cross-reference tool which maps common automotive and industrial MCU MPNs from NXP, ST, and Renesas.
Where can I download the ATSAME51J19A-AFT datasheet PDF?
The ATSAME51J19A-AFT datasheet PDF is available from Microchip's document server at the datasheet URL on this product page, and from datasheet aggregators including DigChip, Datasheets.com, and Hotenda. The datasheet filename is part of the DS60001506 family datasheet (revision should be verified at the URL). A free Microchip account is not required for downloading SAM E51 family datasheets.
Where can I find the ATSAME51J19A-AFT pinout?
The ATSAME51J19A-AFT pinout is documented in the SAM E51 family datasheet section titled 'Pinout' and in the package diagram on the product page. The 64-TQFP pinout lists PAxx, PBxx, PCxx, PDxx GPIO ports, supply pins (VDD, VDDIO, AVDD, GND), and special-function pins (USB DM/DP, CAN-FD, SWDIO/SWCLK for programming). Refer to the XAIPART pinout table on this page for the full pin map.

Dados de referência de engenharia para ATSAME51J19A-AFT — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose the ATSAME51J19A-AFT when your design requires dual CAN-FD controllers, USB 2.0 Full-Speed device or host, and 512 KB of dual-panel Flash in a single 64-TQFP industrial-grade package operating up to 125C. The Cortex-M4F core with FPU and DSP extensions is ideal for motor-control FOC, sensor fusion, and protocol-bridging industrial gateways. Choose the ATSAMD51J19A-AFT instead if your design only needs a single CAN-FD and you want maximum cross-family sourcing flexibility. Choose the ATSAME51J19A-AF for prototype builds or Tray-format production. Choose the ATSAME51J18A-AFT if you need the extra 64 KB SRAM for TCP/IP stacks or larger frame buffers, while keeping the same 64-TQFP footprint. All five options share the same 64-TQFP pinout, enabling PCB reuse across the SAM E51 family.

Comparação com alternativas

Parâmetro Este produto ATSAME51J19A-AF ATSAME51J18A-AFT ATSAMD51J19A-AFT ATSAME51J18A-AUT ATSAMD51J19A-MF
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 64-TQFP (10x10 mm) 64-TQFP (10x10 mm) - same 64-TQFP (10x10 mm) - same 64-TQFP (10x10 mm) - same 64-TQFP (10x10 mm) - same 64-TQFP (10x10 mm) - 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
Flash Memory 512 KB 512 KB 512 KB 512 KB 512 KB 512 KB
SRAM 192 KB 192 KB 256 KB 192 KB 256 KB 192 KB
CAN-FD Controllers 2 2 2 1 2 1
USB 2.0 Full-Speed Yes (Device/Host) Yes Yes Yes Yes Yes
Operating Temperature -40C to +125C (Extended) -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C
Carrier Format Tape & Reel Tray Tape & Reel Tape & Reel Tape & Reel Tray

Principais diferenciais

  • Dual CAN-FD controllers versus SAM D51 family's single CAN-FD (vs ATSAMD51J19A-AFT)
  • 256 KB SRAM option available in same 64-TQFP footprint (J18A variant) (vs ATSAME51J18A-AFT)
  • Drop-in Tray variant for low-volume prototype and qualification builds (vs ATSAME51J19A-AF)

Notas de projeto

Per Microchip's SAM E51 hardware design checklist, place a 1 uF and a 100 nF decoupling capacitor in parallel as close as possible to each VDD and VDDIO pin pair. The internal core logic is sensitive to supply transients during DMA bursts; bulk capacitance on the 3.3 V rail should be sized to supply the worst-case 120 MHz core current without exceeding 5% ripple. For USB applications, route AVDD independently from VDD with a ferrite bead to keep digital switching noise out of the USB analog supply.

The 64-TQFP (10x10 mm) package has a 0.5 mm pitch with no exposed thermal pad. Ensure PCB escape routing does not violate manufacturer design rules (typically 0.2 mm trace/space minimum on inner layers). The USB DM/DP differential pair must be routed as a 90-ohm impedance-controlled pair with length matching to within 150 mil per USB 2.0 Full-Speed specification. For CAN-FD signals, maintain a 120-ohm characteristic impedance differential pair and place a 120-ohm termination resistor at each bus end.

Do not attempt to program the ATSAME51J19A-AFT without the SWD interface wired correctly: SWDIO (PA31), SWCLK (PA30), and GND must be accessible via a 10-pin Cortex Debug connector or Tag-Connect footprint. The Bootloader entry via the BOOTPROT fuse must be configured before locking the device, or you risk bricking the part. When migrating from SAM D51 to SAM E51, confirm that your existing CAN driver handles the second CAN-FD controller; reusing a SAM D51 driver on a SAM E51 will leave CAN1 uninitialized. The dual-panel Flash requires careful linker script configuration to enable live firmware updates without CPU stalls during bank switches.

Informações de conformidade

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Sem chumbo
Yes
Sem halogênios
Unknown
Minerais de conflito
Compliant

RoHS compliant per Microchip product page. The ATSAME51J19A-AFT itself is industrial-grade (-40C to +125C); AEC-Q100 qualified automotive variants are available within the SAM E51 family under separate ordering codes (consult Microchip for specific -AZ/AF automotive suffix codes).

Dados verificados em: 2026-09-21 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

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