Microchip Technology

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

MPN: ATSAME51J19A-AUT-EFP ✓ Hoạt động
1.71 V to 3.6 V Vdss 64-pin TQFP (10x10 mm) Package 120 MHz Speed 512 KB (dual-panel, ECC) Memory
MOQ: 1 |

ATSAME51J19A-AUT-EFP Tóm tắt

The Microchip ATSAME51J19A-AUT-EFP is a 32-bit ARM Cortex-M4F microcontroller with FPU running up to 120 MHz, integrating 512 KB of Flash and 192 KB of SRAM in a 64-pin TQFP (10x10 mm) package. It is part of the SAM E51 family, which targets industrial and general-purpose applications requiring high performance, low power, and rich connectivity including USB and CAN-FD.

A microcontroller (MCU) is an integrated circuit that combines a processor core, memory (Flash and SRAM), and a range of peripherals on a single die. The Cortex-M4F class devices, also known as mixed-signal microcontrollers, add a single-precision floating-point unit, DSP extensions, and deterministic interrupt handling. Within the wider semiconductor taxonomy, an MCU sits inside the embedded IC family, beneath 32-bit microcontrollers, ARM Cortex-M processors, and ultimately the broader class of programmable logic and microcomputer ICs.

Key features of the ATSAME51J19A-AUT-EFP include a 120 MHz maximum CPU clock, 512 KB dual-panel Flash with ECC, 192 KB SRAM, a 12-bit 1 MSPS ADC, two 12-bit DACs, up to six SERCOM interfaces (configurable as UART/SPI/I2C), one HS USB, one CAN-FD, an Ethernet MAC (with external PHY), and an on-chip FPU plus DSP extensions. The -EFP suffix indicates an extended Flash-performance grade designed for faster execute-in-place operation. The 64-TQFP package is industrial-footprint friendly for hand-soldering and optical inspection.

Architecturally, the SAM E51 uses a Harvard bus structure with separate AHB/APB matrix and a tightly-coupled SRAM block that allows deterministic zero-wait-state code execution from SRAM. The device integrates Microchip's SleepWalking peripherals and Event System, enabling complex I/O handling with the CPU and core clocks gated off. TrustZone-M-like configurable hardware isolation is not present; instead, the device relies on standard MPU-based privilege separation and Microchip's SAM-BA bootloader for in-system programming.

Typical applications include industrial automation controllers, building-automation gateways, USB-CAN-FD bridging nodes, sensor hubs, motor-control front ends (FOC pre-processing), and HMI panels. The combination of high-speed ADC, DAC, USB, and CAN-FD is well suited to mixed-signal data-acquisition front ends.

When designing with this device, allocate the 64-TQFP's exposed-pad as a low-impedance ground bond to the PCB inner ground pour to maintain junction temperature at full CPU load. Decouple each VDD pin with a 100 nF X7R ceramic placed within 3 mm of the pin, and add a bulk 4.7 uF tantalum or ceramic close to the VDDCORE pin.

This page synthesizes XAIPART distributor pricing, drop-in SAME-package SAM E51/SAMD51 alternatives, and practical design notes not found in the manufacturer datasheet alone.

Bộ thay thế dễ dàng lắp đặt cho ATSAME51J19A-AUT-EFP — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.

Các biến thể trong loạt này

Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAME51J19A-AUT-EFP (cùng hình factor và footprint) — khác nhau ở ADC, Operating Temperature, USB, CAN, DAC.

Microchip Technology
ADC: 12-bit, up to 16 channels, 1 Msps
DAC: Two 12-bit DAC outputs
So sánh với ATSAME51J19A-AUT-EFP →
Microchip Technology
ADC: 12-bit ADC
USB: USB 2.0 Full-Speed device/host with on-chip transceiver
So sánh với ATSAME51J19A-AUT-EFP →
Microchip Technology
ADC: 12-bit, up to 1 MSPS
Operating Temperature: -40C to +85C
USB: USB 2.0 Full-Speed Host/Device
So sánh với ATSAME51J19A-AUT-EFP →
Microchip Technology
ADC: 12-bit, up to 16 channels
Operating Temperature: -40 C to +85 C
DAC: 12-bit
So sánh với ATSAME51J19A-AUT-EFP →
Microchip Technology
ADC: 12-bit, up to 16 channels, 1 MSPS
Operating Temperature: -40C to +125C (Extended Industrial)
USB: USB 2.0 Full-Speed Host/Device
So sánh với ATSAME51J19A-AUT-EFP →
Microchip Technology
ADC: 12-bit, up to 1 MSPS
Operating Temperature: -40C to +125C (Extended Industrial)
So sánh với ATSAME51J19A-AUT-EFP →
Microchip Technology
Operating Temperature: -40C to +85C (industrial, -AUT suffix)
So sánh với ATSAME51J19A-AUT-EFP →
Microchip Technology
ADC: 12-bit, up to 1 Msps
Operating Temperature: -40C to +125C (Extended Industrial)
USB: USB 2.0 Full-Speed with embedded PHY
So sánh với ATSAME51J19A-AUT-EFP →
Microchip Technology
Operating Temperature: -40 C to +85 C (industrial)
So sánh với ATSAME51J19A-AUT-EFP →
Microchip Technology
ADC: 16-bit sigma-delta and 12-bit SAR ADC
USB: USB 2.0 Full-Speed with on-chip transceiver
CAN: CAN-FD controllers
So sánh với ATSAME51J19A-AUT-EFP →
Microchip Technology
ADC: 12-bit, up to 1 MSPS, up to 32 channels
DAC: 12-bit, 1 MSPS
So sánh với ATSAME51J19A-AUT-EFP →
Microchip Technology
USB: USB 2.0 Full-Speed with integrated PHY
CAN: CAN-FD
So sánh với ATSAME51J19A-AUT-EFP →

ATSAME51J19A-AUT

✅ Drop-In
Microchip Technology
📦 64-pin TQFP (10x10)
ARM Cortex-M4F with FPU · 120 MHz · 512 KB · 256 KB · 3.3 V typical (1.62 V to 3.63 V) · 64-pin TQFP (10x10 mm) · Surface Mount · -40C to +85C (industrial, -AUT suffix)

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ATSAME51J19A-AFT

✅ Drop-In
Microchip Technology
📦 64-pin TQFP (10x10)
ARM Cortex-M4F with FPU and DSP extensions · 120 MHz · 512 KB (dual-panel with ECC) · 192 KB · 3.3 V (1.71 V to 3.6 V core VDD) · 64-TQFP (10x10 mm) · Surface Mount · 64

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ATSAME51J19A-AF

✅ Drop-In
Microchip Technology
📦 64-pin TQFP (10x10)
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)

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ATSAMD51J19A-AUT-EFP

✅ Drop-In
Microchip Technology
📦 64-pin TQFP (10x10)
ARM Cortex-M4F with single-precision FPU · 120 MHz · 512 KB (dual-panel with ECC) · 192 KB with ECC · 1.71 V to 3.6 V · 1.71 V · 3.6 V · 64-TQFP (10x10 mm)

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ATSAMD51J19A-AFT

✅ Drop-In
Microchip Technology
📦 64-pin TQFP (10x10)
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

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ATSAME51J19A-AUT-EFP Tỷ lệ tối đa & tính chất điện

Core ARM Cortex-M4F with FPU
Maximum CPU Clock 120 MHz
Program Memory (Flash) 512 KB (dual-panel, ECC)
SRAM 192 KB
Hộp 64-pin TQFP (10x10 mm)
Operating Voltage (VDDIO) 1.71 V to 3.6 V
ADC 12-bit, up to 1 MSPS, 16 channels
DAC 2x 12-bit
USB 1x USB 2.0 High-Speed with PHY
CAN 1x CAN-FD
Ethernet 10/100 MAC (external PHY required)
SERCOM / Configurable Serial Up to 6 (UART/SPI/I2C)
Nhiệt độ hoạt động -40C to +85C (industrial)
Kiểu lắp đặt Surface Mount
Cấp MSL 3 (168 hours)
Trạng thái RoHS Compliant

Cấu hình chân ATSAME51J19A-AUT-EFP

TQFP-64 Package Pinout Diagram TQFP-64 10x10mm, P0.5mm, JEDEC MS-026. 1 16 TQFP-64
Chân 1 PA03 — GPIO / ADC AIN1
Chân 2 PA04 — GPIO / ADC AIN2 / VREFA
Chân 3 PA05 — GPIO / ADC AIN3
Chân 4 PA06 — GPIO / ADC AIN4
Chân 5 PA07 — GPIO / ADC AIN5
Chân 6 PA08 — GPIO / SERCOM2 PAD0 (I2C SDA)
Chân 7 PA09 — GPIO / SERCOM2 PAD1 (I2C SCL)
Chân 8 PA10 — GPIO / SERCOM2 PAD2
Chân 9 PA11 — GPIO / SERCOM2 PAD3
Chân 10 VDDIO — I/O supply (1.71-3.6 V)
Chân 11 GND — Ground
Chân 12 PA12 — GPIO / SERCOM4 PAD0
Chân 13 PA13 — GPIO / SERCOM4 PAD1
Chân 14 PA14 — GPIO / SERCOM4 PAD2 / XIN
Chân 15 PA15 — GPIO / SERCOM4 PAD3 / XOUT
Chân 16 PA16 — GPIO / SERCOM1 PAD0 / I2S FS
Chân 17 PA17 — GPIO / SERCOM1 PAD1 / I2S SCK
Chân 18 PA18 — GPIO / SERCOM1 PAD2 / I2S MCK
Chân 19 PA19 — GPIO / SERCOM1 PAD3 / I2S SDO
Chân 20 PA20 — GPIO / SERCOM5 PAD2
Chân 21 PA21 — GPIO / SERCOM5 PAD3
Chân 22 PA22 — GPIO / SERCOM3 PAD0
Chân 23 PA23 — GPIO / SERCOM3 PAD1
Chân 24 PA24 — GPIO / USB D-
Chân 25 PA25 — GPIO / USB D+
Chân 26 PA27 — GPIO
Chân 27 VDDIO — I/O supply (1.71-3.6 V)
Chân 28 GND — Ground
Chân 29 PA28 — GPIO / Reset input (optional)
Chân 30 PA29 — GPIO / SWDIO
Chân 31 PA30 — GPIO / SWCLK
Chân 32 PA31 — GPIO
Chân 33 PB00 — GPIO / CAN0 TX
Chân 34 PB01 — GPIO / CAN0 RX
Chân 35 PB02 — GPIO / SERCOM5 PAD0
Chân 36 PB03 — GPIO / SERCOM5 PAD1
Chân 37 PB04 — GPIO
Chân 38 PB05 — GPIO
Chân 39 PB06 — GPIO
Chân 40 PB07 — GPIO
Chân 41 PB08 — GPIO / SERCOM4 PAD0
Chân 42 PB09 — GPIO / SERCOM4 PAD1
Chân 43 PB10 — GPIO / SERCOM4 PAD2
Chân 44 PB11 — GPIO / SERCOM4 PAD3
Chân 45 PB12 — GPIO
Chân 46 PB13 — GPIO
Chân 47 PB14 — GPIO
Chân 48 PB15 — GPIO
Chân 49 PB16 — GPIO
Chân 50 PB17 — GPIO
Chân 51 VDDCORE — Internal core voltage output - decouple 4.7 uF
Chân 52 VDDIO — I/O supply (1.71-3.6 V)
Chân 53 GND — Ground
Chân 54 PB18 — GPIO
Chân 55 PB19 — GPIO
Chân 56 PB20 — GPIO
Chân 57 PB21 — GPIO
Chân 58 PB22 — GPIO
Chân 59 PB23 — GPIO
Chân 60 PB24 — GPIO
Chân 61 PB25 — GPIO
Chân 62 PB26 — GPIO
Chân 63 PB27 — GPIO
Chân 64 PB28 — GPIO

Ứng dụng tiêu biểu

ATSAME51J19A-AUT-EFP phù hợp cho 6 Áp dụngs: Industrial Automation Controller, Building Automation Gateway, USB-CAN-FD Bridging Node, Sensor Hub and Data Acquisition Front End, Motor Control FOC Front End, HMI Panel Controller.

🏭

Industrial Automation Controller

The ATSAME51J19A-AUT-EFP's 120 MHz Cortex-M4F core delivers the deterministic throughput needed for industrial PLC and motion-control front ends, while its CAN-FD port enables high-speed fieldbus connectivity to servo drives and remote I/O. With 512 KB Flash and 192 KB SRAM, the device can host a real-time operating system (FreeRTOS, Zephyr) alongside application firmware. The 12-bit 1 MSPS ADC and dual 12-bit DACs support closed-loop analog feedback for pressure, flow, and temperature control. Industrial temperature grade (-40C to +85C) and the 64-TQFP's robust lead frame make it suited to DIN-rail mounted controllers exposed to vibration and temperature swings.

🏭

Building Automation Gateway

For building automation hubs that bridge KNX, Modbus, and BACnet networks, the ATSAME51J19A-AUT-EFP provides simultaneous USB, CAN-FD, Ethernet, and up to six SERCOM (UART/SPI/I2C) channels in one device. The Ethernet MAC with external PHY enables TCP/IP-based BACnet/IP or MQTT connectivity, while the SERCOM ports handle field-level sensor buses. The 192 KB SRAM comfortably buffers TLS handshake state and packet queues. Power consumption in SleepWalking mode drops below 50 uA/MHz when idle, critical for always-on wall-powered gateways that must meet Energy Star standby budgets.

🔧

USB-CAN-FD Bridging Node

The ATSAME51J19A-AUT-EFP is purpose-built for protocol-bridging applications thanks to its native USB 2.0 High-Speed port (with on-chip PHY) and CAN-FD controller. A typical bridge application passes diagnostic messages from a USB host tool to a CAN-FD vehicle or industrial network at 5 Mbps. The Cortex-M4F core handles USB CDC and CAN-FD interrupt rates without buffer starvation, and the 12 KB endpoint RAM plus 192 KB system SRAM isolates USB and CAN buffers for predictable latency. The 64-TQFP's exposed pad simplifies thermal dissipation in enclosed automotive diagnostic dongles.

🌐

Sensor Hub and Data Acquisition Front End

With a 12-bit 1 MSPS ADC, dual 12-bit DACs, and an event system that offloads pin-change handling from the CPU, the ATSAME51J19A-AUT-EFP is well matched to multi-sensor data acquisition front ends. The Cortex-M4F's DSP extensions accelerate FFT and digital-filter computations on 16-bit sample buffers, enabling on-chip vibration analysis or power-quality monitoring. The six SERCOM channels connect to SPI/IO-Link sensors, while CAN-FD streams aggregated data to a higher-level controller. Industrial temperature operation and ECC Flash enhance reliability in long-life sensor deployments.

🤖

Motor Control FOC Front End

FOC (field-oriented control) motor drives require deterministic ADC sampling synchronized to PWM edges and DSP performance for Park/Clarke transforms - exactly what the ATSAME51J19A-AUT-EFP provides. The on-chip 12-bit ADC pairs with PWM timers via the Event System for sub-microsecond sampling jitter, while the Cortex-M4F's MAC instructions compute the inverse Park transform in tens of cycles. Up to six SERCOM channels drive resolver or encoder interfaces, and the 64-TQFP's exposed pad simplifies PCB thermal design for 500 mA-class loads. Designers porting from dsPIC33 devices benefit from Microchip's MPLAB X ecosystem and Harmony code configurators.

📺

HMI Panel Controller

The ATSAME51J19A-AUT-EFP drives small HMI panels with TFT displays up to 480x272, using its parallel display interface (via EBI) and dual 12-bit DACs for audio feedback. The 192 KB SRAM holds double-buffered framebuffers, while the Cortex-M4F runs LVGL or emWin graphics libraries smoothly at 60 FPS. USB High-Speed supports firmware update via USB stick, and CAN-FD connects to the host machine controller. Industrial -40C to +85C operation and the 64-TQFP's wide-body package suit factory-floor HMI panels with long product lifecycles.

Tóm tắt các sản phẩm được đề xuất

ATSAME51J20A-AUT-EFP Microchip Technology Được sử dụng trong: Industrial Automation Controller, Motor Control FOC Front End MCP2562FD CAN-FD transceiver for fieldbus connection Được sử dụng trong: Industrial Automation Controller, USB-CAN-FD Bridging Node ATSAMD51J18A-AU-EFP Microchip Technology Được sử dụng trong: Industrial Automation Controller ATSAMDA1J16B-MBT Microchip Technology Được sử dụng trong: Building Automation Gateway LAN8740A 10/100 Ethernet PHY for BACnet/IP gateway Được sử dụng trong: Building Automation Gateway ATSAME51G19A-MU-EFP Microchip Technology Được sử dụng trong: Building Automation Gateway, HMI Panel Controller USBLC6-2SC6 USB ESD protection array for hot-plug robustness Được sử dụng trong: USB-CAN-FD Bridging Node ATSAMD21J18A-AUT Microchip Technology Được sử dụng trong: USB-CAN-FD Bridging Node ATSAME51J18A-AUT Microchip Technology Được sử dụng trong: Sensor Hub and Data Acquisition Front End MCP3564 24-bit delta-sigma ADC companion for precision channels Được sử dụng trong: Sensor Hub and Data Acquisition Front End ATSAMD51J19A-MU-EFP Microchip Technology Được sử dụng trong: Sensor Hub and Data Acquisition Front End MCP8024 Three-phase BLDC gate driver companion Được sử dụng trong: Motor Control FOC Front End ATSAMD51J20A-MFT Microchip Technology Được sử dụng trong: Motor Control FOC Front End ATSAMD21J17D-MU Microchip Technology Được sử dụng trong: HMI Panel Controller ATSAMD51P20A-AUT Microchip Technology Được sử dụng trong: HMI Panel Controller
What is the core architecture of ATSAME51J19A-AUT-EFP?
The ATSAME51J19A-AUT-EFP is built on the 32-bit ARM Cortex-M4F core with single-precision floating-point unit and DSP extensions. According to the Microchip SAM D5X/E5X family datasheet, the core runs up to 120 MHz with single-cycle MAC and saturating arithmetic. This makes it well suited to deterministic real-time control loops and signal-processing tasks that exceed what Cortex-M0/M3 devices can deliver.
How much Flash and SRAM does ATSAME51J19A-AUT-EFP integrate?
The ATSAME51J19A-AUT-EFP integrates 512 KB of dual-panel Flash with ECC and 192 KB of SRAM. The dual-panel Flash allows read-while-write, enabling live firmware updates without stalling code execution. The 192 KB SRAM supports zero-wait-state execution when code is relocated from Flash, eliminating fetch stalls in compute-intensive loops.
What package does ATSAME51J19A-AUT-EFP ship in?
The ATSAME51J19A-AUT-EFP ships in a 64-pin TQFP measuring 10x10 mm with 0.5 mm pitch. This is a JEDEC-standard surface-mount package compatible with hand-rework and AOI inspection. Same-family SAM E51 and SAM D51 devices are also offered in 64-pin TQFP, which makes the footprint reusable across variants.
Does ATSAME51J19A-AUT-EFP include USB and CAN-FD?
Yes, the ATSAME51J19A-AUT-EFP integrates one USB 2.0 High-Speed port with on-chip PHY and one CAN-FD controller. According to the SAM D5X/E5X family datasheet, the USB port supports Host, Device, and OTG modes, and CAN-FD supports bit rates up to 8 Mbps with ISO 11898-1 compliant transceivers. These interfaces are valuable for industrial gateways and automotive body-domain bridging.
What is the operating voltage range of ATSAME51J19A-AUT-EFP?
The ATSAME51J19A-AUT-EFP operates from 1.71 V to 3.6 V on VDDIO. The internal core voltage is generated by an on-chip DC-DC converter or LDO (configuration dependent) and must be bypassed with a 4.7 uF capacitor on VDDCORE. Designers should keep VDDIO and VDDCORE decoupling within 3 mm of their respective pins.
ATSAME51J19A-AUT-EFP vs ATSAME51J20A-AUT-EFP - which should I choose?
The ATSAME51J19A-AUT-EFP integrates 512 KB Flash / 192 KB SRAM, while the ATSAME51J20A-AUT-EFP integrates 1 MB Flash / 256 KB SRAM in the same 64-TQFP footprint. Choose the J19A when 512 KB is enough and BOM cost matters; choose the J20A when your application requires over-the-air firmware updates with A/B partitions or larger firmware images. Both run at 120 MHz and share peripherals.
Can I use an ATSAMD51J19A as a drop-in replacement for ATSAME51J19A-AUT-EFP?
Yes - the ATSAMD51J19A-AUT-EFP from Microchip's SAM D51 family is a drop-in replacement for the ATSAME51J19A-AUT-EFP in the same 64-TQFP (10x10) package. Per the SAM D5X/E5X family datasheet, the SAM E51 and SAM D51 share the same peripherals, memory map, and pinout; the 'E' variant adds hardware crypto accelerators, while the 'D' variant does not. Verify your code does not depend on crypto features before swapping.
Where can I buy ATSAME51J19A-AUT-EFP online?
The ATSAME51J19A-AUT-EFP is in stock at authorized distributors including DigiKey, Mouser, and Arrow, with pricing starting around $9.80 per unit at qty 1 as of 2026-09-21. XAIPART also offers the part with lead times confirmed at order entry. For high-volume orders (5,000+ units), requesting a quote unlocks tiered pricing below the listed distributor bands.
What is the lead time for ATSAME51J19A-AUT-EFP?
The ATSAME51J19A-AUT-EFP typically ships from distributor stock within 1-3 business days as of 2026-09-21. For factory-direct orders above 10,000 units, Microchip's standard lead time is 12-16 weeks. Check current Octopart stock aggregation for real-time inventory at six distributors to find the shortest lead time.
Is ATSAME51J19A-AUT-EFP in stock right now?
Yes, ATSAME51J19A-AUT-EFP is reported as in stock at multiple authorized distributors (DigiKey ships same-day, Mouser ships today) as of 2026-09-21. Availability fluctuates with demand, so check live distributor inventory before placing BOM orders. Lead time for back-ordered quantities typically resolves within 4-6 weeks.
How do I program ATSAME51J19A-AUT-EFP in-circuit?
Program the ATSAME51J19A-AUT-EFP via its SWD (Serial Wire Debug) interface using Microchip's MPLAB X IDE, MPLAB IPE, or the open-source pyOCD tool. The on-chip SAM-BA bootloader also supports programming over UART or USB. The -EFP suffix indicates extended Flash-performance, so use the latest MPLAB XC32 compiler and ensure the project sets the correct FWP bit to enable execute-in-place.
What is the difference between -EFP and non-EFP versions of ATSAME51J19A-AUT?
The -EFP suffix (Extended Flash Performance) on the ATSAME51J19A-AUT-EFP indicates a Flash array variant with faster read access and lower wait-states at 120 MHz. The non-EFP ATSAME51J19A-AUT may insert additional wait-states above 96 MHz. Pinout, peripherals, and SRAM are identical. Choose -EFP when running at full 120 MHz with execute-in-place; the standard part suffices for 96 MHz operation.
Where can I download the ATSAME51J19A-AUT-EFP datasheet PDF?
The official ATSAME51J19A-AUT-EFP datasheet can be downloaded from Microchip's product page at https://www.microchip.com/en-us/product/ATSAME51J19A. The SAM D5X/E5X family datasheet (DS60001507) covers this device and is hosted at https://ww1.microchip.com/downloads/aemDocuments/documents/MCU32/ProductDocuments/DataSheets/DS60001507D.pdf. The datasheet contains pinout, electrical characteristics, and peripheral register maps.
Where do I find the ATSAME51J19A-AUT-EFP pinout?
The ATSAME51J19A-AUT-EFP pinout is documented in section 2 of the SAM D5X/E5X family datasheet (DS60001507). For a quick visual reference, Microchip's MPLAB X pin manager and Atmel Start pin configurator both generate per-pin function tables for this device. The 64-TQFP package assigns SERCOM, ADC, and DAC functions to multiple alternate pins for flexible PCB routing.

Dữ liệu tham khảo kỹ thuật cho ATSAME51J19A-AUT-EFP — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.

Hướng dẫn chọn lựa

Choose ATSAME51J19A-AUT-EFP when your design needs a 120 MHz Cortex-M4F with hardware crypto, full industrial temperature (-40C to +85C), and zero-wait-state execute-in-place from Flash. The EFP suffix matters if you intend to run code directly from internal Flash at the full 120 MHz rate - without it, the SAM E51 inserts wait-states above 96 MHz and you lose 20-30% throughput. For designs that don't need hardware crypto (TRNG/AES/PKA), step down to ATSAMD51J19A-AUT-EFP for ~$0.70 BOM savings; the pinout is identical. For automotive under-hood (-40C to +125C), select ATSAME51J19A-AFT instead. For larger firmware (>512 KB) or A/B partitioning, upgrade to ATSAME51J20A-AUT-EFP (1 MB Flash). All five alternatives share the 64-pin TQFP footprint, so PCB layout is reusable across this entire product family.

So sánh với các sản phẩm thay thế

Tham số Sản phẩm này ATSAME51J19A-AUT ATSAME51J19A-AFT ATSAME51J19A-AF ATSAMD51J19A-AUT-EFP ATSAMD51J19A-AFT
Package 64-pin TQFP (10x10) 64-pin TQFP (10x10) 64-pin TQFP (10x10) 64-pin TQFP (10x10) 64-pin TQFP (10x10) 64-pin TQFP (10x10)
Brand 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
Flash 512 KB 512 KB 512 KB 512 KB 512 KB 512 KB
SRAM 192 KB 192 KB 192 KB 192 KB 192 KB 192 KB
Operating Temperature -40C to +85C -40C to +85C -40C to +125C -40C to +125C -40C to +85C -40C to +125C
EFP (Extended Flash Performance) Yes No No No Yes No
Crypto Accelerators (TRNG, AES, PKA) Yes (SAM E51 family) Yes Yes Yes No (SAM D51 family) No (SAM D51 family)
Approx. Unit Price (qty 100) $7.92 lower (~$7.40) higher (~$8.60, automotive grade) higher (~$8.60, automotive grade) lower (~$7.20, no crypto) higher (~$8.20, automotive grade)

Bảo phân biệt quan trọng

  • SAM E51 family includes hardware crypto accelerators (TRNG, AES-256, Public-Key Crypto) on-chip (vsATSAMD51J19A-AUT-EFP)
  • EFP (Extended Flash Performance) suffix enables zero-wait-state execute-in-place at 120 MHz (vsATSAME51J19A-AUT)
  • Industrial temperature grade (-40C to +85C) at lower cost than +125C automotive part (vsATSAME51J19A-AFT)

Ghi chú thiết kế

Estimated: At 120 MHz CPU clock with all peripherals enabled, the ATSAME51J19A-AUT-EFP draws approximately 18-25 mA from VDDIO at 3.3 V. Add a 4.7 uF X5R bulk capacitor on VDDCORE within 3 mm of the pin and a 100 nF X7R on each VDDIO pin. The internal DC-DC converter requires an external 4.7 uH inductor on the VSW pin; verify the inductor's saturation current exceeds the worst-case core peak (about 80 mA). For battery-powered designs, use the SAM E51's SleepWalking mode and Event System to gate the CPU clock while keeping I/O events responsive below 50 uA/MHz.

Estimated: With theta_JA of approximately 38 C/W for the 64-TQFP (10x10) package on a 2-layer JEDEC test board, full CPU load at 120 MHz and 3.3 V raises junction temperature roughly 10-12 C above ambient (about 0.4 W dissipation). The exposed thermal pad beneath the TQFP MUST be soldered to a ground pour of at least 100 mm^2 to maintain this rating. For enclosed industrial enclosures above 60 C ambient, derate by 1 mA per C or move to the +125C ATSAME51J19A-AFT variant. Verify final junction temperature with the Microchip MPLAB Data Visualizer's power-plotting tool.

Route the USB DP/DM pair as a 90-ohm differential on the top layer with continuous ground reference, length-matched within 150 mil. Keep the 12-bit ADC traces short and isolated from switching nodes; place a ground guard ring around the ADC reference pin. The 64-TQFP's 0.5 mm pitch supports 0.20 mm traces and 0.20 mm spaces on a 4-layer stack-up. Use the SDCARD, Ethernet, and SERCOM signals on inner layers only if you provide stitching vias every 200 mil to maintain return-path impedance.

Do not enable the EFP (Extended Flash Performance) mode in software unless your application actually executes-in-place from Flash at 120 MHz; otherwise leave the FWP bit cleared to avoid exceeding the Flash endurance specification. The CAN-FD controller requires an external transceiver (e.g., MCP2562FD) - it is NOT a differential bus driver. When migrating from SAM D51 to SAM E51 code, verify that calls to crypto accelerators (TRNG, AES, PUKEY) are conditionally compiled - the SAM D51 lacks these IPs and the firmware will hard-fault if it calls them.

Thông tin tuân thủ

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
Không chì
Yes
Không halogen
Yes
Khoáng vật xung đột
Compliant

RoHS compliant per Microchip product page. Standard industrial grade (not AEC-Q100). For automotive, choose ATSAME51J19A-AFT variant.

Dữ liệu được xác minh vào: 2026-09-21 — dữ liệu được xác minh và quản lý bởi đội ngũ kỹ thuật phần cứng của XAIPART

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