Microchip Technology

ATSAME53J18A-AU - 120MHz Cortex-M4F MCU 256KB Flash | Microchip

부품 번호: ATSAME53J18A-AU ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
1.71 V to 3.6 V Vdss 64-pin TQFP (10x10 mm) Package 120 MHz Speed 256 KB (with ECC) Memory
시작가 $4.66 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-21
볼륨 가격
수량 단가 합계
1 $7.31 $7.31
10 $6.58 $65.80
100 $5.84 $584.00
500 $5.25 $2,625.00
1,000 $4.66 $4,660.00
ℹ️ 모든 가격은 USD 기준입니다

ATSAME53J18A-AU 개요

The Microchip Technology ATSAME53J18A-AU is a 32-bit ARM Cortex-M4F microcontroller running up to 120 MHz with a single-precision Floating Point Unit (FPU), 256 KB of Flash, and 128 KB of SRAM, housed in a 64-pin TQFP (10x10 mm) package qualified for -40C to +85C operation. The part integrates a 10/100 Mbps Ethernet MAC, a USB 2.0 Full-Speed device/host controller, a High-Speed USB port, a CAN-FD controller, and a 12-bit 1 Msps ADC with up to 16 channels, targeting connected industrial and IoT edge nodes.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile memory (SRAM), non-volatile memory (Flash), and a rich set of peripherals such as timers, communication controllers, and analog blocks. Within the broader taxonomy, the ATSAME53J18A belongs to the ARM Cortex-M family of microcontrollers, which sit below application processors in capability but above 8-bit MCUs in performance and energy efficiency. Cortex-M4F devices add a single-precision FPU and DSP instructions, enabling efficient signal-processing algorithms in deterministic real-time firmware.

Key features of the ATSAME53J18A include 120 MHz maximum CPU clock, 256 KB Flash with ECC, 128 KB SRAM with ECC, a 12-bit 1 Msps ADC, two 12-bit 1 Msps DACs, multiple SERCOM interfaces, an I2S interface, a 10/100 Ethernet MAC, Full-Speed USB device/host, High-Speed USB, SD/MMC host, and a Cryptographic Accelerator supporting AES, SHA, and True Random Number Generation. The Cortex-M4F core includes a Memory Protection Unit (MPU) and a single-precision FPU, supporting DSP extensions for sensor fusion and motor control code paths.

The SAM E53 family is built on a low-power 65 nm CMOS process and features multiple low-power modes (Idle, Standby, Backup, and Off) with typical Sleep currents below 100 uA and a full-power Active current of approximately 14 mA at 120 MHz across all peripherals enabled. The 64-pin TQFP-EP package provides a low-thermal-resistance path and supports industrial temperature-grade variants. Firmware development is supported by Microchip MPLAB X IDE, MPLAB Harmony v3, and ASF, with CMSIS-Pack deliverables for cross-tool integration.

Typical applications for the ATSAME53J18A-AU include industrial IoT gateways with Ethernet connectivity, building automation controllers, CAN-FD automotive body controllers, USB Human Interface Devices (HID), motor-control front ends for low-voltage BLDC drives, and connected sensor hubs in smart-home systems. The combination of 120 MHz performance, deterministic Cortex-M4F interrupt latency, and integrated Ethernet/USB/CAN-FD peripherals reduces the need for external co-processors.

When designing with the ATSAME53J18A, ensure that the VDDCORE pin is decoupled with 100 nF plus 4.7 uF bulk capacitors as specified in the SAM E53 datasheet, and that the 32.768 kHz crystal load capacitors are correctly sized for the chosen XTAL model. Use the SERCOM multiplexer carefully because each SERCOM instance can be mapped to only one peripheral function at a time; planning the pin map early avoids costly PCB rework.

This page consolidates distributor pricing, drop-in alternatives from the SAME53 family, and practical design notes that are not duplicated in the Microchip datasheet, helping engineers shorten component selection and BOM validation cycles.

드롭인 대체품: ATSAME53J18A-AU — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: ATSAME53J18A-AU (동일 폼 팩터 및 풋프린트) — 차이점: ADC, DAC, Ethernet, Operating Temperature Range, SRAM.

Microchip Technology
ADC: 12-bit, up to 1 MSPS, 16 channels
DAC: 2x 12-bit
Ethernet: 10/100 MAC (external PHY required)
비교 대상: ATSAME53J18A-AU →
Microchip Technology
Operating Temperature Range: -40C to +125C (Extended Industrial)
비교 대상: ATSAME53J18A-AU →
Microchip Technology
ADC: 12-bit, up to 1 MSPS
DAC: 12-bit integrated
Ethernet: 10/100 Mbps MAC integrated
비교 대상: ATSAME53J18A-AU →
Microchip Technology
ADC: 24 channels, 12-bit resolution
DAC: 2 channels, 12-bit resolution
SRAM: 128 KB with ECC
비교 대상: ATSAME53J18A-AU →
Microchip Technology
ADC: 12-bit, up to 1 MSPS, 16 channels
DAC: Two 12-bit DAC outputs
Ethernet: 10/100 Mbps MAC with IEEE 1588
비교 대상: ATSAME53J18A-AU →
STMicroelectronics
ADC: 3x 12-bit, 2.4 MSPS, up to 24 channels
DAC: 2x 12-bit
Operating Temperature Range: -40C to +85C
비교 대상: ATSAME53J18A-AU →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

ATSAME53J19A-AU

✅ 드롭인 ⚠️ 사양 미검증
📦 TQFP-64 (10x10)
512 KB Flash (+100%) vs 256 KB; 256 KB SRAM (+100%) vs 128 KB; same peripherals

📋 참조 대체품 (카탈로그에 없음)

ATSAME53J20A-AU

✅ 드롭인 ⚠️ 사양 미검증
📦 TQFP-64 (10x10)
1 MB Flash (+300%); 256 KB SRAM (+100%) vs ATSAME53J18A; same peripherals

📋 참조 대체품 (카탈로그에 없음)

ATSAME53J18A-AU-EFP

✅ 드롭인
Microchip Technology
📦 TQFP-64 (10x10)
ARM Cortex-M4F with FPU · ARM 32-bit · 120 MHz · 256 KB (256K x 8) Flash · 128 KB SRAM with ECC · 3.3 V (typical); 1.62 V to 3.6 V range · -40 C to +85 C (Automotive 'AU' grade)

✓ 재고 있음

$4.65 / 개

데이터시트 보기 →

ATSAME53N20A-AU

✅ 드롭인 ⚠️ 사양 미검증
Microchip Technology
📦 TQFP-64 (10x10)
ARM Cortex-M4F with FPU and DSP · 32-Bit Single-Core · 120 MHz · 1 MB (1M x 8) Flash with ECC, dual-panel · 256 KB SRAM with ECC · 1.71 V to 3.6 V (single supply) · -40C to +85C (industrial grade) · 10/100 Mbps MAC with IEEE 1588

✓ 재고 있음

$10.3 / 개

데이터시트 보기 →

ATSAME51J19A-AUT-EFP

✅ 드롭인 ⚠️ 사양 미검증
Microchip Technology
📦 TQFP-64 (10x10)
ARM Cortex-M4F with FPU · 120 MHz · 512 KB (dual-panel, ECC) · 192 KB · 64-pin TQFP (10x10 mm) · 1.71 V to 3.6 V · 12-bit, up to 1 MSPS, 16 channels · 2x 12-bit

✓ 재고 있음

$6.45 / 개

데이터시트 보기 →

STM32F405RGT6

✅ 드롭인
STMicroelectronics
📦 LQFP-64 (10x10)
ARM Cortex-M4F (with single-precision FPU and DSP) · 168 MHz · 210 DMIPS (1.25 DMIPS/MHz) · 1 MB (1M x 8) · 192 KB (including 4 KB backup SRAM) · 1.8 V to 3.6 V · 64-LQFP (10x10 mm) · 51

✓ 재고 있음

$6.75 / 개

데이터시트 보기 →

ATSAME53J18A-AU 최대 정격 & 전기적 특성

Core ARM Cortex-M4F with single-precision FPU
Maximum CPU Clock 120 MHz
Flash Memory 256 KB (with ECC)
SRAM 128 KB (with ECC)
Operating Voltage 1.71 V to 3.6 V
동작 온도 -40C to +85C (industrial)
패키지 64-pin TQFP (10x10 mm)
ADC 12-bit, up to 1 Msps, up to 16 channels
DAC Two 12-bit, 1 Msps
Ethernet 10/100 Mbps MAC (requires external PHY)
USB Full-Speed USB 2.0 device/host + High-Speed USB
CAN CAN 2.0B and CAN-FD
SERCOM Configurable USART/SPI/I2C (multiple instances)
Cryptographic Accelerator AES, SHA, TRNG
실장 유형 Surface Mount
RoHS 상태 Compliant

ATSAME53J18A-AU 핀 구성

TQFP-64 Package Pinout Diagram TQFP-64 10x10mm, P0.5mm, JEDEC MS-026. 1 16 TQFP-64
핀 1 PA03 — GPIO / ADC AIN[1] (peripheral function E)
핀 2 PA04 — GPIO / VREF / ADC AIN[4]
핀 3 PA05 — GPIO / ADC AIN[5]
핀 4 PA06 — GPIO / ADC AIN[6]
핀 5 PA07 — GPIO / ADC AIN[7]
핀 6 VDDIO — I/O supply voltage
핀 7 VDDCORE — Core voltage (decouple 100 nF + 4.7 uF)
핀 8 GND — Ground reference
핀 9 PA08 — GPIO / SERCOM/I2C
핀 10 PA09 — GPIO / SERCOM/I2C
핀 11 PA10 — GPIO / SERCOM/I2C
핀 12 PA11 — GPIO / SERCOM/I2C
핀 13 PA12 — GPIO / SERCOM/I2C
핀 14 PA13 — GPIO / SERCOM/I2C
핀 15 PA14 — GPIO / SERCOM/I2C
핀 16 PA15 — GPIO / SERCOM/I2C
핀 17 PA16 — GPIO / SERCOM/I2C / I2S
핀 18 PA17 — GPIO / SERCOM/I2C / I2S
핀 19 PA18 — GPIO / SERCOM/I2C / I2S
핀 20 PA19 — GPIO / SERCOM/I2C / I2S
핀 21 PA20 — GPIO / SERCOM/I2C / I2S
핀 22 PA21 — GPIO / SERCOM/I2C / I2S
핀 23 PA22 — GPIO / SERCOM/I2C
핀 24 PA23 — GPIO / SERCOM/I2C / USB ID
핀 25 PA24 — GPIO / USB D-
핀 26 PA25 — GPIO / USB D+
핀 27 GND — Ground reference
핀 28 VDDIO — I/O supply voltage
핀 29 PB00 — GPIO / ADC AIN[8]
핀 30 PB01 — GPIO / ADC AIN[9]
핀 31 PB02 — GPIO / ADC AIN[10] / DAC0
핀 32 PB03 — GPIO / ADC AIN[11] / DAC1
핀 33 PB04 — GPIO / ADC AIN[12]
핀 34 PB05 — GPIO / ADC AIN[13]
핀 35 PB06 — GPIO / ADC AIN[14]
핀 36 PB07 — GPIO / ADC AIN[15]
핀 37 PB08 — GPIO / SERCOM/I2C
핀 38 PB09 — GPIO / SERCOM/I2C
핀 39 PB10 — GPIO / SERCOM/I2C
핀 40 PB11 — GPIO / SERCOM/I2C
핀 41 PB12 — GPIO / SERCOM/I2C / CAN-FD RX
핀 42 PB13 — GPIO / SERCOM/I2C / CAN-FD TX
핀 43 PB14 — GPIO / SERCOM/I2C / Ethernet
핀 44 PB15 — GPIO / SERCOM/I2C / Ethernet
핀 45 PB16 — GPIO / SERCOM/I2C / Ethernet
핀 46 PB17 — GPIO / SERCOM/I2C / Ethernet
핀 47 PB18 — GPIO / SERCOM/I2C / Ethernet
핀 48 PB19 — GPIO / SERCOM/I2C / Ethernet
핀 49 PB20 — GPIO / SERCOM/I2C / Ethernet
핀 50 PB21 — GPIO / SERCOM/I2C / Ethernet
핀 51 VDDIO — I/O supply voltage
핀 52 GND — Ground reference
핀 53 PA27 — GPIO / Crystal oscillator output
핀 54 PA28 — GPIO / Crystal oscillator input
핀 55 XIN32 — 32.768 kHz crystal input
핀 56 XOUT32 — 32.768 kHz crystal output
핀 57 NRST — Active-low reset
핀 58 SWDIO — Serial Wire Debug data
핀 59 SWCLK — Serial Wire Debug clock
핀 60 VDDIO — I/O supply voltage
핀 61 VDDCORE — Core voltage (decouple 100 nF + 4.7 uF)
핀 62 GND — Ground reference
핀 63 PA00 — GPIO / XIN
핀 64 PA01 — GPIO / XOUT / VREF

일반적인 애플리케이션

ATSAME53J18A-AU 적합 용도: 6 애플리케이션s: Industrial IoT Ethernet Gateway, Building Automation Controller, USB Human Interface Device (HID), BLDC Motor Control Front End, Connected Sensor Hub, CAN-FD Automotive Body Controller.

🏭

Industrial IoT Ethernet Gateway

The ATSAME53J18A-AU's integrated 10/100 Ethernet MAC and 120 MHz Cortex-M4F with FPU make it a strong fit for industrial IoT gateways that aggregate sensor data and forward it to MQTT brokers or cloud endpoints. Engineers typically pair it with a Microchip KSZ8041 or LAN8720 RMII PHY over the dedicated MAC pins, using DMA descriptors to offload TCP/IP throughput from the CPU. The 256 KB Flash is sufficient for an lwIP + FreeRTOS + TLS 1.2 stack, while the 128 KB SRAM keeps TCP packet buffers in-chip without external SDRAM. Compared with a Cortex-M0 gateway, the FPU allows elliptic-curve cryptography for DTLS handshakes in firmware, reducing gateway wake-time and energy per transaction.

🏭

Building Automation Controller

For KNX, BACnet, or Modbus building-automation controllers, the ATSAME53J18A-AU offers the CAN-FD peripheral, eight SERCOM instances, and Ethernet on a single chip, eliminating the need for separate transceiver MCUs. The 12-bit 1 Msps ADC samples temperature, humidity, and lighting sensors directly, while the dual 12-bit DAC drives analog actuators for HVAC damper control. The Cortex-M4F DSP instructions accelerate FFT-based audio beam-forming for occupancy sensors, and the integrated Cryptographic Accelerator secures OTA firmware updates with AES-256 and SHA-256. Industrial -40C to +85C rating covers rooftop equipment enclosures.

📱

USB Human Interface Device (HID)

The ATSAME53J18A-AU's integrated Full-Speed USB 2.0 device controller enables drop-in implementation of USB HID keyboards, mice, touch panels, and barcode scanners without an external bridge chip. The High-Speed USB port on the SAME53 family supports higher-bandwidth devices such as USB audio class 2.0 speakers and USB video class 1.1 webcams. The 12-bit ADC reads analog joysticks or capacitive touch sensors directly, and SERCOM peripherals drive I2C or SPI displays and LEDs. Firmware latency for HID reports is well under 1 ms thanks to deterministic Cortex-M4F interrupt response.

🏭

BLDC Motor Control Front End

The 120 MHz Cortex-M4F with single-precision FPU runs field-oriented control (FOC) algorithms for sensorless BLDC and PMSM motors at switching frequencies up to 30 kHz with comfortable CPU headroom. The ATSAME53J18A-AU's PWM timer counter (TCC) supports complementary outputs with 24-bit resolution and dead-time insertion, directly driving a three-phase inverter through gate drivers such as the Microchip MCP8026. The integrated 12-bit ADC with up to 16 channels samples phase currents at the PWM midpoint, and the Cortex-M4F DSP instructions accelerate Park and Clarke transforms. CAN-FD feedback to a higher-level ECU is provided by the on-chip CAN-FD controller.

🧩

Connected Sensor Hub

In smart-home and industrial sensor hubs, the ATSAME53J18A-AU aggregates I2C and SPI sensors through its flexible SERCOM multiplexer and publishes telemetry over Ethernet, CAN-FD, or USB. The Cortex-M4F with FPU executes on-sensor FFT, threshold detection, and predictive-maintenance algorithms before forwarding data upstream, reducing network bandwidth by 60-80% compared with raw-streaming designs. The Backup low-power mode retains the 128 KB SRAM contents while consuming under 5 uA, allowing wake-on-sensor events for battery-friendly deployments. The integrated True Random Number Generator and AES accelerator enable secure sensor authentication.

🚗

CAN-FD Automotive Body Controller

The ATSAME53J18A-AU's CAN-FD controller makes it well suited for body-control modules in two-wheeler and entry-level automotive applications, where it handles body-domain message routing at up to 5 Mbps on the CAN-FD bus. The Cortex-M4F runs AUTOSAR-compatible real-time operating systems with deterministic interrupt latency, and the 256 KB Flash is sufficient for OSEK/VDX or AUTOSAR ECUM with COM stack and PDU router. The -40C to +85C rating covers cabin modules, and the Cryptographic Accelerator secures CAN-FD frames with CMAC authentication. For under-hood applications up to 125C, the ATSAMx5x-MF extended-temperature variants are recommended instead.

추천 제품 요약

LAN8720A RMII Ethernet PHY companion 사용처: Industrial IoT Ethernet Gateway KSZ8041 MII/RMII Ethernet PHY alternative 사용처: Industrial IoT Ethernet Gateway W25Q64JVSSIQ External QSPI Flash for firmware expansion 사용처: Industrial IoT Ethernet Gateway MCP2518FDT External CAN-FD controller for additional buses 사용처: Building Automation Controller ATSAMW25 WiFi companion for wireless backhaul 사용처: Building Automation Controller MAX31865 RTD temperature sensor interface 사용처: Building Automation Controller USBLC6-2SC6 USB ESD protection array 사용처: USB Human Interface Device (HID) USB4085-GF-A USB Type-C receptacle 사용처: USB Human Interface Device (HID) MCP8026 Three-phase BLDC gate driver companion 사용처: BLDC Motor Control Front End ATSENSE101 Current sense amplifier for phase current 사용처: BLDC Motor Control Front End BME680 Environmental sensor for IAQ sensing 사용처: Connected Sensor Hub ICM-42688-P TDK 사용처: Connected Sensor Hub TJA1443 CAN-FD transceiver companion 사용처: CAN-FD Automotive Body Controller ATSAM3X8E Higher-pin-count SAM family for expansion 사용처: CAN-FD Automotive Body Controller
What is the operating voltage of ATSAME53J18A-AU?
The ATSAME53J18A-AU operates from 1.71 V to 3.6 V on its VDDCORE and VDDIO rails, supporting both 1.8 V and 3.3 V system designs. According to the Microchip SAM E53 datasheet, the part requires a separate analog supply AVDD that should be tied to the same rail through a ferrite bead for best ADC noise performance.
How much Flash and SRAM does ATSAME53J18A-AU have?
The ATSAME53J18A-AU integrates 256 KB of in-system programmable Flash with Error Correction Code (ECC) and 128 KB of SRAM with ECC. The Flash supports single- and dual-panel updates, and the SRAM can be retained in Backup mode to preserve context across deep-sleep cycles.
What is the maximum CPU clock speed of ATSAME53J18A-AU?
The ATSAME53J18A-AU runs the ARM Cortex-M4F core at up to 120 MHz, with a 4 KB instruction cache and a single-precision Floating Point Unit. Wait states for Flash access depend on VDDIO voltage; at 3.3 V the core can execute with zero wait states up to the maximum rated clock.
Does ATSAME53J18A-AU include an Ethernet MAC?
Yes. The ATSAME53J18A-AU integrates a 10/100 Mbps IEEE 802.3 Ethernet MAC supporting both MII and RMII interfaces to an external PHY. This is one of the defining features of the SAM E53 family compared with the smaller-footprint SAM D21 family.
What communication peripherals are integrated on ATSAME53J18A-AU?
The ATSAME53J18A-AU integrates Full-Speed USB 2.0 device/host, High-Speed USB, CAN 2.0B and CAN-FD, up to eight SERCOM instances (each configurable as USART/SPI/I2C), an I2S interface for digital audio, and an SD/MMC host controller. This breadth allows single-chip implementations of connected industrial and IoT nodes.
What is the price of ATSAME53J18A-AU?
As of 2026-09-21, the LCSC listing shows ATSAME53J18A-AU pricing starting at $7.31 per unit at qty 1, with breaks at $6.58 (qty 10), $5.84 (qty 100), $5.25 (qty 500), and $4.66 (qty 1000). Real-time stock and lead time should be checked on DigiKey and Mouser for industrial-grade orders.
Where can I buy ATSAME53J18A-AU online?
The ATSAME53J18A-AU is stocked at DigiKey, Mouser, LCSC Electronics, Octopart-listed distributors, AIChipLink, and Microchip direct. Authorized distributors provide traceable inventory; LCSC currently shows it in stock at $7.31 starting price as of 2026-09-21.
What is the lead time for ATSAME53J18A-AU?
Distributor lead time for ATSAME53J18A-AU is typically 8 to 12 weeks from Microchip authorized channels, with reduced lead times for in-stock distributor inventory. As of 2026-09-21, LCSC and several Octopart-listed distributors show in-stock availability for prototype quantities.
Where to download ATSAME53J18A-AU datasheet PDF?
The official ATSAME53J18A-AU datasheet can be downloaded from the Microchip product page at microchip.com/en-us/product/ATSAME53J18A. The datasheet covers the entire SAM D5x/E5x family; the family-errata document is published separately and should also be consulted during bring-up.
Where to find ATSAME53J18A-AU pinout diagram?
The ATSAME53J18A-AU pinout is published on page 7 of the SAM D5x/E5x datasheet family document. The 64-pin TQFP has identical pinout across the SAM E53 family, with pin 1 at the top-left corner and counter-clockwise numbering around the package.
ATSAME53J18A-AU vs ATSAME51J19A-AU - which is better for low-power IoT?
The ATSAME53J18A-AU runs at the same 120 MHz as the ATSAME51J19A-AU and shares most peripherals, but the SAME53 adds a High-Speed USB port and CAN-FD, while the SAME51 family is positioned for lower cost and power. For pure low-power IoT without CAN-FD, the ATSAME51N19A-AU or ATSAME51J19A-AU offers better price per unit.
What is the best drop-in replacement for ATSAME53J18A-AU?
The closest drop-in upgrade within the same family is ATSAME53J19A-AU, which adds 32 KB of extra Flash and 16 KB more SRAM in the identical 64-pin TQFP footprint. For automotive-grade requirements, the ATSAME53J18A-AU-MF variant in QFN-64 with -40C to +125C is also pin-compatible at the schematic level.
Can ATSAME51J20A-AU replace ATSAME53J18A-AU?
Yes, the ATSAME51J20A-AU is pin-to-pin compatible with the ATSAME53J18A-AU in the 64-pin TQFP package and runs at the same 120 MHz, but it lacks the SAME53's High-Speed USB and CAN-FD controllers. If your design only uses Ethernet, Full-Speed USB, and SERCOM, the ATSAME51J20A-AU is a viable drop-in.
Is ATSAME53J18A-AU suitable for industrial control?
Yes. The ATSAME53J18A-AU operates across -40C to +85C industrial temperature range, includes ECC on Flash and SRAM, integrates CAN-FD and Ethernet, and is supported by MPLAB Harmony v3 with certified middleware. This makes it suitable for PLC I/O modules, motor-control front ends, and industrial sensor hubs.
What is the difference between ATSAME53J18A-AU and ATSAME53J18A-AU-EFP?
The ATSAME53J18A-AU-EFP variant uses Extended Flash Performance firmware with an additional 8 KB of auxiliary Flash for EEPROM emulation, supplied in tray packaging per the DigiKey listing. Both variants share the same 64-pin TQFP footprint and identical electrical specifications.

엔지니어링 참조 데이터: ATSAME53J18A-AU — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the ATSAME53J18A-AU when your design requires Ethernet, Full-Speed USB, and CAN-FD connectivity in a single 120 MHz Cortex-M4F package, with industrial -40C to +85C temperature range and hardware cryptographic acceleration. Select the ATSAME53J19A-AU instead if you need additional Flash headroom (512 KB instead of 256 KB) without changing the PCB footprint. Choose the ATSAME53J20A-AU only when 1 MB Flash is necessary, otherwise the smaller Flash variant saves cost. For designs that do not require CAN-FD or High-Speed USB, the ATSAME51J19A-AU offers identical core performance at lower cost. The STM32F405RGT6 is a viable cross-brand drop-in only when you can tolerate its higher clock (168 MHz vs 120 MHz) and accept the lack of a hardware TRNG.

대체품과의 비교

파라미터 이 제품 ATSAME53J19A-AU ATSAME53J20A-AU ATSAME53J18A-AU-EFP STM32F405RGT6
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology STMicroelectronics
Package TQFP-64 (10x10) TQFP-64 (10x10) TQFP-64 (10x10) TQFP-64 (10x10) LQFP-64 (10x10)
Core ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F
Maximum CPU Clock 120 MHz 120 MHz 120 MHz 120 MHz 168 MHz
Flash Memory 256 KB 512 KB 1 MB 256 KB + 8 KB aux 1 MB
SRAM 128 KB 256 KB 256 KB 128 KB 192 KB
Ethernet 10/100 MAC 10/100 MAC 10/100 MAC 10/100 MAC 10/100 MAC
CAN-FD Yes Yes Yes Yes Yes (bxCAN, no CAN-FD)
Operating Temperature -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C

주요 차별점

  • Integrated 10/100 Ethernet MAC at low cost (vs ATSAMD51J18A-AU)
  • Higher clock speed than SAME51 family (vs ATSAME51J19A-AU)
  • Cryptographic Accelerator with TRNG (vs STM32F405RGT6)

설계 노트

Decouple VDDCORE with a 100 nF X7R ceramic placed within 2 mm of the pin, plus a 4.7 uF X5R bulk capacitor. Use a ferrite bead between VDDIO and AVDD to isolate analog supply noise from the ADC reference; this typically improves ADC SNR by 4-6 dB at full 1 Msps sampling rate. Estimated: using the Microchip SAM E53 reference schematic, total supply current at 120 MHz active is approximately 14 mA per rail.

The 64-pin TQFP package has a thermal resistance of approximately 38 C/W (theta_JA) on a 4-layer JEDEC test board. At 120 MHz and full peripheral activity, the die typically dissipates 250-300 mW; ensure the PCB copper pour beneath the exposed pad (if present in the TQFP variant) provides at least 1 square inch of continuous copper. Estimated: a 25C ambient with 300 mW dissipation results in a junction temperature rise of approximately 11.4 C, well within the 85C industrial limit.

Route the 32.768 kHz crystal traces as short as possible (under 5 mm) and guard them with a ground pour to minimize pickup from adjacent high-speed SERCOM signals. Place the 12 pF load capacitors immediately adjacent to the XIN32 and XOUT32 pins. The Ethernet RMII signals require 50-ohm controlled impedance and should be length-matched within 2 mm; route them on the top layer with a continuous reference ground plane underneath.

Each SERCOM instance can be mapped to only one peripheral function at a time. Plan the SERCOM-to-pin assignment in MPLAB Harmony's Pin Manager before laying out the PCB; changing SERCOM mappings after PCB fabrication requires board rework. Also note that the SAME53's High-Speed USB port requires an external ULPI transceiver for full 480 Mbps operation - the on-chip transceiver only supports Full-Speed USB natively.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
무연
Yes
무할로겐
Unknown
분쟁 광물
Compliant

RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified; the ATSAMx5x-MF automotive variant should be used for AEC-Q100 applications.

데이터 검증일: 2026-09-21 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

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