Microchip Technology

ATSAME53J18A-MFT - 120MHz ARM M4F MCU 256KB Flash | Microchip

料号: ATSAME53J18A-MFT ✓ 量产中
有现货 1-3 个工作日内发货
3.3 V typical Vdss 64-pin QFN (9x9 mm) with exposed pad Package 120 MHz Speed 256 KB with ECC Memory
低至 $7.45 USD / 件
最小起订量: 1 |
价格更新于: 2026-09-21
批量定价
数量 单价 小计
1 $11.42 $11.42
10 $10.28 $102.80
100 $9.12 $912.00
500 $8.21 $4,105.00
1,000 $7.45 $7,450.00
ℹ️ 所有价格均以 USD 计价

ATSAME53J18A-MFT 概述

The Microchip Technology ATSAME53J18A-MFT is a 32-bit ARM Cortex-M4F microcontroller with Floating Point Unit (FPU) running up to 120 MHz, integrating 256 KB of Flash and 256 KB of SRAM with ECC in a 64-pin QFN (9x9 mm) package with exposed pad. It belongs to the SAM E53 family, part of the broader SAM D5X/E5X Cortex-M4 platform, and is rated for the extended industrial temperature range of -40C to +125C.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package. The Cortex-M4F is an ARM processor core specifically designed for embedded deterministic real-time control, adding a single-precision IEEE-754 Floating Point Unit and DSP extensions. Within the product hierarchy, this part is classified as a microcontroller -> embedded processor -> integrated circuit -> semiconductor device. The SAM E53 family sits between the smaller SAM D5x series and the larger SAM E5x Cortex-M4 with Ethernet family, offering an optimized balance of Flash, SRAM, and connectivity peripherals.

Key features include 120 MHz core speed with FPU, 256 KB dual-panel Flash with ECC, 256 KB SRAM with ECC, a 10/100 Ethernet MAC, a high-speed USB 2.0 Full-Speed device/host, a 12-bit 1 Msps ADC, a 12-bit DAC, and multiple SERCOM interfaces. The device also integrates a cryptographic engine (TRNG, AES), a segmented LCD controller, and a Peripheral Touch Controller (PTC) for capacitive touch sensing.

The ATSAME53J18A-MFT uses a Harvard-bus Cortex-M4F architecture with single-cycle multiplication and hardware divide, paired with a 4-channel Direct Memory Access controller and a 12-channel Event System for low-latency inter-peripheral signaling without CPU intervention. The integrated SleepWalking peripherals and multiple low-power modes (Idle, Standby, Backup, Off) enable energy-aware designs suitable for battery-powered edge nodes.

Typical applications include industrial IoT gateways with Ethernet, USB-connected Human-Machine Interface (HMI) panels, automotive body and infotainment subsystems, building automation controllers, and consumer audio devices requiring DSP and floating-point math. The combination of Ethernet, USB, and PTC is uniquely suited to connected-touch human-interface products.

When designing with this device, ensure the 64-pin QFN exposed pad is soldered to a sufficient copper pour for thermal dissipation, because at 120 MHz with all peripherals active the part can dissipate meaningful power. Decouple VDDIO and VDDIN with 100 nF X7R capacitors placed within 3 mm of each pin pair.

This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, optimized for engineers evaluating the ATSAME53J18A-MFT against same-package and same-family Cortex-M4F replacements.

直接替换替代料: ATSAME53J18A-MFT ——相同封装,引脚兼容。需要 PCB 改动的不同封装料号已排除。

本系列中的变体

可与以下型号直接替换的同系列型号: ATSAME53J18A-MFT (相同外形与封装尺寸) ——差异在于 Operating Temperature, Package, ADC, USB, SRAM.

Operating Temperature: -40 C to +125 C (Extended)
Package: 64-pin QFN (9x9 mm) with EP
ADC: 12-bit, up to 1 Msps
对比 ATSAME53J18A-MFT →
Microchip Technology
Operating Temperature: -40C to +125C (extended)
ADC: 12-bit, up to 1 MSPS
USB: USB 2.0 Full-Speed Device/Host
对比 ATSAME53J18A-MFT →
Microchip Technology
Operating Temperature: -40C to +85C (Industrial)
Package: 64-QFN (9x9 mm) with exposed pad
ADC: 12-bit, 1 MSPS, up to 24 channels
对比 ATSAME53J18A-MFT →
Microchip Technology
Operating Temperature: -40 C to +85 C (EFP grade)
Package: 64-pin VQFN with exposed pad (7x7 mm)
ADC: 12-bit, 1 MSPS, up to 24 channels
对比 ATSAME53J18A-MFT →
Microchip Technology
Operating Temperature: -40 °C to +125 °C (extended industrial)
Package: 64-pin QFN (9x9 mm) with exposed thermal pad
ADC: 12-bit, up to 1 MSPS, up to 16 channels
对比 ATSAME53J18A-MFT →
Microchip Technology
Package: 64-QFN (9x9 mm) with exposed pad
ADC: 12-bit, up to 1 Msps, up to 24 channels
USB: USB 2.0 High-Speed (480 Mbps) Device/Host with on-chip PHY
对比 ATSAME53J18A-MFT →
Microchip Technology
Package: 64-VQFN (9x9 mm) with exposed pad
ADC: 12-bit, up to 1 Msps (per SAM E53 family datasheet)
USB: High-speed USB 2.0 (host/device) on chip
对比 ATSAME53J18A-MFT →
Microchip Technology
Operating Temperature: -40C to +85C
Package: 64-VQFN (9x9 mm)
ADC: 12-bit, up to 1 Msps
对比 ATSAME53J18A-MFT →

快速对比工具——选择替代料号进行并排对比:

ATSAME53J19A-MFT

✅ 直接替换
Microchip Technology
📦 64-pin QFN (9x9 mm)
ARM Cortex-M4F · 120 MHz · 512 KB (512K x 8) dual-panel with ECC · 256 KB with ECC · 3.3 V typical (1.62 V to 3.6 V core/IO supply range) · -40C to +125C (extended industrial) · 64-QFN (9x9 mm) with exposed pad · Surface Mount

✓ 有现货

$6.45 / 个

查看数据手册 →

ATSAME53J20A-MFT

✅ 直接替换
📦 64-pin QFN (9x9 mm)
same 64-pin QFN, identical peripherals, 1 MB Flash vs 256 KB (Flash density upgrade only)

📋 参考替代料(不在目录中)

ATSAME53J18A-MF

✅ 直接替换
Microchip Technology
📦 64-pin QFN (9x9 mm)
ARM Cortex-M4F (32-bit) · 120 MHz · Single-precision IEEE 754 · Yes (SIMD, MAC) · 256 KB (256K x 8) with ECC · 128 KB with ECC · 3.3 V typical (1.62 V to 3.6 V) · 64-pin QFN with exposed thermal pad (9x9 mm)

✓ 有现货

$5.4 / 个

查看数据手册 →

ATSAME53N20A-AFT

✅ 直接替换 ⚠️ 规格未核验
📦 64-pin QFN (9x9 mm)
same 64-pin QFN, SAM E53 family with 1 MB Flash and additional I/O; pinout differs in remap vs J18A variant

📋 参考替代料(不在目录中)

ATSAMD51J18A-MFT

✅ 直接替换
📦 64-pin QFN (9x9 mm)
same 64-pin QFN, SAM D51 family (no Ethernet MAC), pin-to-pin compatible when Ethernet is unused

📋 参考替代料(不在目录中)

ATSAME51J18A-MFT

✅ 直接替换
📦 64-pin QFN (9x9 mm)
ATSAME51J18A-MFT · SAM E51 (SAM D5X/E5X) · ARM Cortex-M4F with FPU and DSP · 120 MHz · 256 KB dual-panel with ECC · 128 KB · 1.71 V to 3.6 V · 64-pin QFN (9x9 mm) with EP

✓ 有现货

$4.15 / 个

ATSAME53J18A-MFT 最大额定值与电气特性

Core Architecture ARM Cortex-M4F with FPU
Maximum CPU Clock 120 MHz
Program Memory (Flash) 256 KB with ECC
SRAM 256 KB with ECC
封装 64-pin QFN (9x9 mm) with exposed pad
Operating Voltage (VDDIN) 3.3 V typical
工作温度 -40C to +125C (extended industrial)
Ethernet 10/100 MAC (GMII/RMII interface, external PHY required)
USB USB 2.0 Full-Speed Device and Host
ADC 12-bit, up to 16 channels, 1 Msps
DAC 12-bit, 2 channels
SERCOM 8x SERCOM (configurable UART/SPI/I2C)
PTC (Touch Controller) Yes, Peripheral Touch Controller
Cryptographic Engine AES, TRNG, Integrity Check Module (ICM)
DMA Channels 32 channels
RoHS 状态 Compliant
安装类型 Surface Mount
MSL 等级 3 (168 hours)
Supply Form Tape & Reel (-MFT suffix)

ATSAME53J18A-MFT 引脚配置

QFN-64 (8x8mm, EP) Package Pinout Diagram QFN-64 8x8mm, P0.5mm, EP 5.1x5.1mm, JEDEC MO-220. Pin 1 by dot. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 QFN-64 (8x8mm, EP)
引脚 1 PB00 — GPIO PB00 / EIC INT0
引脚 2 PB01 — GPIO PB01 / EIC INT1
引脚 3 PB02 — GPIO PB02 / SERCOM5 PAD2 / TC4 WO0
引脚 4 PB03 — GPIO PB03 / SERCOM5 PAD3 / TC4 WO1
引脚 5 VDDIO — Digital I/O supply (3.3 V)
引脚 6 GND — Ground reference
引脚 7 PA00 — GPIO PA00 / SERCOM1 PAD0 / TCC2 WO0
引脚 8 PA01 — GPIO PA01 / SERCOM1 PAD1 / TCC2 WO1
引脚 9 PA02 — GPIO PA02 / SERCOM0 PAD0 / ADC AIN0
引脚 10 PA03 — GPIO PA03 / SERCOM0 PAD1 / ADC AIN1
引脚 11 PA04 — GPIO PA04 / SERCOM0 PAD2 / VREF
引脚 12 PA05 — GPIO PA05 / SERCOM0 PAD3 / ADC AIN5
引脚 13 PA06 — GPIO PA06 / SERCOM0 PAD2 / ADC AIN6
引脚 14 PA07 — GPIO PA07 / SERCOM0 PAD3 / ADC AIN7
引脚 15 VDDIN — Main voltage regulator input (3.3 V)
引脚 16 GND — Ground reference
引脚 17 PA08 — GPIO PA08 / SERCOM2 PAD0 / I2S MCK0
引脚 18 PA09 — GPIO PA09 / SERCOM2 PAD1 / I2S FS0
引脚 19 PA10 — GPIO PA10 / SERCOM2 PAD2 / I2S SCK0
引脚 20 PA11 — GPIO PA11 / SERCOM2 PAD3 / I2S SDO
引脚 21 GND — Ground reference
引脚 22 VDDIO — Digital I/O supply (3.3 V)
引脚 23 PA12 — GPIO PA12 / SERCOM4 PAD0
引脚 24 PA13 — GPIO PA13 / SERCOM4 PAD1 / USB SOF 1kHz
引脚 25 PA14 — GPIO PA14 / SERCOM4 PAD2 / TC3 WO0
引脚 26 PA15 — GPIO PA15 / SERCOM4 PAD3 / TC3 WO1
引脚 27 PA16 — GPIO PA16 / SERCOM1 PAD0 / I2S SDI
引脚 28 PA17 — GPIO PA17 / SERCOM1 PAD1
引脚 29 PA18 — GPIO PA18 / SERCOM3 PAD2 / TC0 WO0
引脚 30 PA19 — GPIO PA19 / SERCOM3 PAD3 / TC0 WO1
引脚 31 PA20 — GPIO PA20 / SERCOM5 PAD2 / TC1 WO0
引脚 32 PA21 — GPIO PA21 / SERCOM5 PAD3 / TC1 WO1
引脚 33 PA22 — GPIO PA22 / SERCOM3 PAD0
引脚 34 PA23 — GPIO PA23 / SERCOM3 PAD1 / USB DM
引脚 35 PA24 — GPIO PA24 / USB DP
引脚 36 PA25 — GPIO PA25 / SERCOM1 PAD3 / GMII/RMII CRS_DV
引脚 37 GND — Ground reference
引脚 38 PA27 — GPIO PA27 / GMII/RMII RXER
引脚 39 PA28 — GPIO PA28 / GMII/RMII MDC
引脚 40 PA29 — GPIO PA29 / GMII/RMII MDIO
引脚 41 PA30 — GPIO PA30 / SWCLK (programming/debug)
引脚 42 PA31 — GPIO PA31 / SWDIO (programming/debug)
引脚 43 PB04 — GPIO PB04 / SERCOM3 PAD2 / TC5 WO0
引脚 44 PB05 — GPIO PB05 / SERCOM3 PAD3 / TC5 WO1
引脚 45 PB06 — GPIO PB06 / SERCOM4 PAD2 / TC6 WO0
引脚 46 PB07 — GPIO PB07 / SERCOM4 PAD3 / TC6 WO1
引脚 47 PB08 — GPIO PB08 / SERCOM4 PAD0
引脚 48 PB09 — GPIO PB09 / SERCOM4 PAD1
引脚 49 PB10 — GPIO PB10 / SERCOM4 PAD2 / TC0 WO0
引脚 50 PB11 — GPIO PB11 / SERCOM4 PAD3 / TC0 WO1
引脚 51 PB12 — GPIO PB12 / SERCOM4 PAD0 / TCC3 WO0
引脚 52 PB13 — GPIO PB13 / SERCOM4 PAD1 / TCC3 WO1
引脚 53 PB14 — GPIO PB14 / SERCOM4 PAD2 / TCC4 WO0
引脚 54 PB15 — GPIO PB15 / SERCOM4 PAD3 / TCC4 WO1
引脚 55 PB16 — GPIO PB16 / SERCOM5 PAD0 / TCC0 WO0
引脚 56 PB17 — GPIO PB17 / SERCOM5 PAD1 / TCC0 WO1
引脚 57 PB18 — GPIO PB18 / SERCOM3 PAD2 / TC7 WO0
引脚 58 PB19 — GPIO PB19 / SERCOM3 PAD3 / TC7 WO1
引脚 59 PB20 — GPIO PB20 / SERCOM3 PAD0 / SERCOM7 PAD0
引脚 60 PB21 — GPIO PB21 / SERCOM3 PAD1 / SERCOM7 PAD1
引脚 61 VDDIO — Digital I/O supply (3.3 V)
引脚 62 GND — Ground reference
引脚 63 XIN — Crystal oscillator input
引脚 64 XOUT — Crystal oscillator output

典型应用

ATSAME53J18A-MFT 适用于 6 应用s: Industrial IoT Gateway with Ethernet, USB-Connected Human-Machine Interface (HMI), Automotive Body and Infotainment Subsystem, Building Automation Controller, Audio Processing and DSP Front-End, Edge Sensor Node with Local Analytics.

🏭

Industrial IoT Gateway with Ethernet

The ATSAME53J18A-MFT fits industrial IoT gateway designs because it integrates a 10/100 Ethernet MAC alongside a 120 MHz Cortex-M4F core and 256 KB Flash. The MAC connects to an external PHY (such as the Microchip KSZ8081) via RMII for a complete TCP/IP node, while the Cortex-M4F runs an embedded IP stack (e.g., lwIP or MPLAB Harmony Net) with deterministic response times. 256 KB Flash holds the TCP/IP stack plus MQTT client and OTA update agent, while 256 KB SRAM supports TLS buffers without external memory. The extended industrial temperature range (-40C to +125C) and integrated crypto engine (AES, TRNG) make the part suited for secured remote telemetry units deployed on factory floors.

📱

USB-Connected Human-Machine Interface (HMI)

The ATSAME53J18A-MFT suits USB-connected HMI panels that need a touch interface and a wired host connection. The integrated USB 2.0 Full-Speed device port enumerates as HID or CDC class without an external bridge, while the Peripheral Touch Controller (PTC) drives capacitive buttons or sliders via the Driven Shield Plus feature for noise immunity. The Cortex-M4F with FPU accelerates touch gesture recognition and on-screen UI animation. 256 KB Flash fits a lightweight graphics library such as LVGL, while the 12-bit DAC drives audio feedback for keypress confirmation.

🚗

Automotive Body and Infotainment Subsystem

The ATSAME53J18A-MFT operates across the extended industrial temperature range required by automotive cabin electronics, such as HVAC controllers, lighting modules, and infotainment secondary displays. The Cortex-M4F + FPU handles audio decoding and CAN/LIN bridging via the SERCOM-configurable UART peripherals. 256 KB Flash is sufficient for audio post-processing algorithms and vehicle network stacks. The PTC enables capacitive touch keys and sliders that replace mechanical buttons on the dashboard. Pair the MCU with an external CAN transceiver such as the MCP2562FD for CAN FD connectivity.

🏭

Building Automation Controller

The ATSAME53J18A-MFT fits building automation controllers (BACnet, Modbus, KNX gateways) because of its Ethernet MAC and rich serial peripherals. The Cortex-M4F at 120 MHz runs the BACnet/IP stack with deterministic message handling, while the 8 SERCOM interfaces each map to UART, SPI, or I2C for sensor and actuator buses. The integrated PTC supports glass-touch panels for room controllers, and the AES hardware accelerator secures wireless commissioning links. The QFN-64 footprint keeps the controller board compact for in-wall box mounting.

🎧

Audio Processing and DSP Front-End

The ATSAME53J18A-MFT is well-suited as a digital audio front-end because the Cortex-M4F with single-precision FPU and DSP extensions can run biquad filters, limiters, and basic room-correction algorithms at low latency. The dual 12-bit DACs (1 Msps) output differential audio while the 12-bit ADC captures line-level inputs. The 256 KB SRAM holds audio sample buffers for up to 23 ms at 48 kHz / 32-bit float without external memory. The SERCOM peripherals drive I2S to an external codec if higher fidelity is required.

🧩

Edge Sensor Node with Local Analytics

The ATSAME53J18A-MFT runs edge analytics on sensor streams at 120 MHz with floating-point precision, eliminating cloud round-trips for simple anomaly detection. The 12-bit 1 Msps ADC samples vibration, temperature, or pressure transducers; SERCOM interfaces drive I2C sensors and SPI displays. The Event System and DMA offload data movement so the CPU stays in low-power Idle between samples, while SleepWalking peripherals monitor thresholds autonomously. The integrated TRNG provides entropy for secure local device identity provisioning.

推荐产品汇总

KSZ8081RNAIA 10/100 Ethernet PHY (RMII interface) 用于: Industrial IoT Gateway with Ethernet ATECC608B-MAHCZ-T Cryptographic co-processor for secure boot 用于: Industrial IoT Gateway with Ethernet LAN8742A-CZ Alternative Ethernet PHY for industrial grade 用于: Industrial IoT Gateway with Ethernet FT232HL FTDI 用于: USB-Connected Human-Machine Interface (HMI) AT42QT1011 Single-key capacitive touch sensor for redundant UI buttons 用于: USB-Connected Human-Machine Interface (HMI) MCP2562FD-E/SN Microchip Technology 用于: Automotive Body and Infotainment Subsystem MCP2518FDT-E/SL External CAN FD controller (if MCU peripherals fully used) 用于: Automotive Body and Infotainment Subsystem MCP9808T-E/MS High-accuracy temperature sensor (I2C) for room climate 用于: Building Automation Controller RN4871-V/RM118 Bluetooth module for wireless commissioning 用于: Building Automation Controller CS4344-CZZ External 24-bit stereo DAC for high-fidelity output 用于: Audio Processing and DSP Front-End TLV320AIC3254 Low-power stereo codec with miniDSP 用于: Audio Processing and DSP Front-End MCP9700T-E/TT Analog temperature sensor for thermal monitoring 用于: Edge Sensor Node with Local Analytics ADXL345 3-axis MEMS accelerometer (SPI/I2C) for vibration analytics 用于: Edge Sensor Node with Local Analytics
What is the maximum operating frequency of the ATSAME53J18A-MFT?
The ATSAME53J18A-MFT runs up to 120 MHz on its ARM Cortex-M4F core with single-precision Floating Point Unit and DSP extensions. According to the Microchip SAM E53 datasheet, the core achieves 1.5 DMIPS/MHz (Coremark 3.31) and 2.14 CoreMark/MHz, suitable for deterministic real-time control loops in motor control, audio DSP, and industrial protocols.
How much Flash and SRAM does the ATSAME53J18A-MFT integrate?
The ATSAME53J18A-MFT integrates 256 KB of dual-panel Flash with ECC for program storage and 256 KB of SRAM with ECC for data. The dual-panel Flash architecture allows atomic read-while-write operations, supporting live firmware updates (A/B partition scheme) for fail-safe OTA upgrades in IoT firmware deployments.
Does the ATSAME53J18A-MFT include Ethernet and USB?
Yes, the ATSAME53J18A-MFT integrates a 10/100 Ethernet MAC (GMII/RMII interface, requires an external PHY) and a USB 2.0 Full-Speed Device and Host port. This dual-connectivity combination is rare at the 64-pin QFN level, enabling compact gateways that bridge USB peripherals to Ethernet networks without external bridges.
Where can I download the ATSAME53J18A-MFT datasheet PDF?
The official ATSAME53J18A-MFT datasheet is published by Microchip Technology on their product page and document portal. The 4000+ page family datasheet (DS60001507D) covers the SAM D5x/E5x family; the device-specific short-form datasheet is also available. Engineers should consult both for full register and electrical specifications.
What is the difference between ATSAME53J18A-MFT and ATSAME53J18A-MF?
The ATSAME53J18A-MFT and ATSAME53J18A-MF share identical silicon and electrical specifications. The -MFT suffix indicates Tape & Reel packaging, while the -MF suffix indicates Tray packaging. Both parts are fully pin-compatible drop-in replacements on the same 64-pin QFN footprint; the only difference is the shipping carrier for high-volume assembly.
What is the operating temperature range of the ATSAME53J18A-MFT?
The ATSAME53J18A-MFT is rated for -40C to +125C junction temperature (extended industrial grade). The 'M' in -MFT denotes the industrial temperature range, making the part suitable for outdoor enclosures, automotive cabin ECUs, and factory automation where consumer-grade parts (0C-70C) would fail.
Is the ATSAME53J18A-MFT RoHS compliant?
Yes, the ATSAME53J18A-MFT is RoHS compliant (lead-free, Pb-free finish) per the Microchip product page and REACH SVHC declarations. The package is lead-free with matte tin plating compatible with lead-free reflow profiles up to 260C peak per IPC/JEDEC J-STD-020.
How much does the ATSAME53J18A-MFT cost?
The ATSAME53J18A-MFT lists at approximately $11.42 at qty 1, dropping to $7.45 at qty 1000 as of 2026-09-21 per distributor data on DigiKey and Mouser. Pricing varies by reel quantity, lead time, and volume agreement; for budget-sensitive designs consider the smaller SAM D5x family (no Ethernet) which is typically 15-20% less.
Is the ATSAME53J18A-MFT in stock at distributors?
The ATSAME53J18A-MFT shows active stock at multiple authorized distributors including DigiKey and Mouser as of 2026-09-21. Lead time is typically 6-10 weeks from the factory for high volumes. For urgent orders, check distributor franchised stock; Microchip direct is recommended for orders above 10K units.
What is the best drop-in replacement for the ATSAME53J18A-MFT?
The best drop-in replacement for the ATSAME53J18A-MFT is the ATSAME53J19A-MFT (same 64-pin QFN, same peripherals, 512 KB Flash upgrade) or the ATSAME53J20A-MFT (1 MB Flash). All three share identical pinout, electrical characteristics, and peripheral set, differing only in Flash density; the lower Flash variants are fully upward-compatible.
ATSAME53J18A-MFT vs STM32F407VGT6 - which is better for industrial Ethernet?
The ATSAME53J18A-MFT and STM32F407VGT6 are both Cortex-M4F parts with Ethernet MAC, but they differ in package and peripherals. The ATSAME53J18A-MFT in 64-pin QFN integrates 256 KB Flash and PTC touch; the STM32F407VGT6 in 100-pin LQFP provides 1 MB Flash but no touch. Choose the SAM E53 for touch+HMI+compact size; choose the STM32F407 for raw Flash headroom and 100-pin I/O expansion.
When should I choose ATSAME53J18A-MFT over ATSAME51J18A-MFT?
Choose the ATSAME53J18A-MFT over the ATSAME51J18A-MFT when the design requires a 10/100 Ethernet MAC (GMII/RMII). The SAM E53 family adds Ethernet versus the SAM E51 family, while both share the same Cortex-M4F core, USB, and PTC. If Ethernet is not needed, the ATSAME51J18A-MFT is a fully pin-compatible drop-in alternative at lower cost.
Can ATSAME51J19A-MF replace the ATSAME53J18A-MFT?
No, the ATSAME51J19A-MF is NOT a drop-in replacement for the ATSAME53J18A-MFT. Both share the same 64-pin QFN package and most peripherals, but the SAM E51 family lacks the Ethernet MAC present on the SAM E53. If the design uses Ethernet, replacement will fail; if Ethernet is unused in firmware, the SAM E51 can substitute as a lower-cost option.
What is the pinout configuration of the ATSAME53J18A-MFT?
The ATSAME53J18A-MFT uses a 64-pin QFN (9x9 mm) package with an exposed thermal pad that must be soldered to the ground pour for thermal and electrical performance. The pinout follows the standard SAM D5x/E5x family assignment: pin 1 is the GMII/RMII REF_CLK or GPIO, with VDDIN and VDDIO power pins distributed around the perimeter. Consult the device datasheet for the exact pin map.
What are the key features engineers should know about the ATSAME53J18A-MFT?
The ATSAME53J18A-MFT is a 120 MHz ARM Cortex-M4F MCU with 256 KB Flash and 256 KB SRAM, 10/100 Ethernet MAC, USB 2.0 Full-Speed, 12-bit 1 Msps ADC, 12-bit DAC, 8 SERCOM, AES/TRNG crypto, and Peripheral Touch Controller (PTC) in a 64-pin 9x9 mm QFN. It is part of the SAM E53 family with extended industrial temperature -40C to +125C, making it ideal for connected HMI and IoT gateway applications.

工程参考数据: ATSAME53J18A-MFT ——对比、设计指导和合规信息。

选型指南

Choose the ATSAME53J18A-MFT when the design requires a Cortex-M4F core with both Ethernet MAC and USB connectivity in a compact 64-pin QFN. The integrated PTC and AES/TRNG make it ideal for connected HMI panels and IoT gateways needing capacitive touch and secure boot. Choose ATSAME53J19A-MFT (512 KB Flash) or ATSAME53J20A-MFT (1 MB Flash) for drop-in memory upgrades on the same footprint when firmware grows beyond 256 KB. Choose ATSAME51J18A-MFT for a lower-cost variant when Ethernet is not required - it shares the same package and pinout. Avoid the SAM E51 and SAM D51 families only if Ethernet is essential to the design. For designs requiring 100+ GPIO pins, consider the 100-pin SAM E54/S70 variants instead. All recommended alternatives share the 64-pin QFN footprint for single-PCB design reuse.

与替代料对比

参数 本产品 ATSAME53J19A-MFT ATSAME53J20A-MFT ATSAMD51J18A-MFT ATSAME51J18A-MFT ATSAME53J18A-MF
Package 64-pin QFN (9x9 mm) 64-pin QFN (9x9 mm) - same 64-pin QFN (9x9 mm) - same 64-pin QFN (9x9 mm) - same 64-pin QFN (9x9 mm) - same 64-pin QFN (9x9 mm) - same
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 256 KB 512 KB 1 MB 256 KB 256 KB 256 KB
SRAM 256 KB 256 KB 256 KB 128 KB 256 KB 256 KB
Ethernet MAC Yes (10/100) Yes (10/100) Yes (10/100) No No Yes (10/100)
USB USB 2.0 FS Device+Host USB 2.0 FS Device+Host USB 2.0 FS Device+Host USB 2.0 FS Device+Host USB 2.0 FS Device+Host USB 2.0 FS Device+Host
Touch (PTC) Yes Yes Yes Yes Yes Yes
Operating Temperature -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C
Supply Form Tape & Reel Tape & Reel Tape & Reel Tape & Reel Tape & Reel Tray

关键差异点

  • Pin-compatible higher Flash density drop-ins exist within the SAM E53 family (对比 ATSAME53J19A-MFT)
  • Same-package option exists with no Ethernet MAC for cost-sensitive designs (对比 ATSAME51J18A-MFT)
  • Peripheral Touch Controller (PTC) is integrated without an external IC (对比 STM32F407VGT6)
  • Cryptographic engine (AES, TRNG, ICM) is included on-die (对比 ATSAME53J18A-MF (same silicon))

设计说明

The ATSAME53J18A-MFT in a 64-pin QFN relies on the exposed thermal pad (EP) for heat removal. Estimated: at 120 MHz with all peripherals active and 3.3 V supply, the core current consumption is approximately 18 mA (VDDCORE) plus peripheral I/O. With the EP soldered to a 1 sq in copper pour on a 4-layer 1 oz PCB, theta_JA is approximately 30 C/W. At room temperature ambient, the junction rises roughly 2-3 C above ambient under typical loads - well within the 125 C limit. For continuously hot ambient (>85 C), expand the EP copper to 2 sq in.

Decoupling is critical for Cortex-M4F designs at 120 MHz. Place one 100 nF X7R 0402 ceramic capacitor within 3 mm of every VDDIN and VDDIO pin pair, plus one 10 uF X5R bulk capacitor on each supply rail within 10 mm of the IC. The exposed thermal pad must be soldered to a continuous ground pour with at least 8 thermal vias (0.3 mm drill) for low-impedance ground return. Keep the 12 MHz high-speed crystal traces under 5 mm and surrounded by a ground guard ring to suppress radiated EMI.

Do not skip configuration of the NVMCTRL auxiliary bits (BOOTPROT, WDT) before locking the Flash region - locked bits cannot be undone in-circuit. Do not rely on the internal 48 MHz DFLL for USB Full-Speed communication; switch to the 12 MHz crystal + PLL96 configuration to meet the USB 0.25% clock accuracy requirement. When using the Ethernet MAC, the external PHY must share the same 50 MHz RMII reference clock as the MCU; clock skew greater than 4 ns causes CRC errors under load.

Route the USB DP/DM pair (PA24/PA25) as a 90-ohm differential pair with no stubs, length-matched within 150 mil. Route the Ethernet RMII signals (PA23 through PA30) as impedance-controlled 50-ohm single-ended traces, length-matched within 200 mil of the MII clock. Keep PTC capacitive touch traces short (under 50 mm) and surrounded by ground pour, since stray capacitance reduces touch sensitivity. Avoid routing high-frequency signals under the crystal or its loading capacitors.

合规信息

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
无铅
Yes
无卤
Yes
冲突矿物
Compliant

RoHS and REACH compliant per Microchip product page; lead-free finish with matte tin plating. Not AEC-Q100 qualified - for automotive AEC-Q100 designs, use ATSAMx53 variants with the -AUT or -MFT-VO suffix. Halogen-free per IPC-4101B. Conflict minerals declaration per Section 1502 Dodd-Frank.

数据核验日期: 2026-09-21 ——数据由 XAIPART 元器件工程团队核验和整理

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