Microchip Technology

ATSAMD51J19A-AUT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip

부품 번호: ATSAMD51J19A-AUT ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
1.71V to 3.6V Vdss 64-TQFP (10x10 mm) Package 120 MHz Speed 512KB (512K x 8) Flash with ECC Memory
시작가 $4.32 USD / 개
MOQ: 1 |
가격 업데이트: 2026-10-06
볼륨 가격
수량 단가 합계
1 $6.72 $6.72
10 $6.05 $60.50
100 $5.42 $542.00
500 $4.85 $2,425.00
1,000 $4.32 $4,320.00
ℹ️ 모든 가격은 USD 기준입니다

ATSAMD51J19A-AUT 개요

The Microchip Technology ATSAMD51J19A-AUT is a high-performance 32-bit ARM Cortex-M4F microcontroller running up to 120 MHz with single-precision hardware Floating Point Unit (FPU), 512 KB of dual-panel Flash with ECC, and up to 192 KB of SRAM, housed in a 64-pin TQFP (10x10 mm) package rated for the -40C to +85C operating window. The 'AUT' suffix designates the AEC-Q100 automotive-qualification tier combined with T&R packaging, making this part especially suited for automotive and industrial designs that demand a Cortex-M4F core, rich connectivity, and a small-footprint QFP.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a wide range of peripherals onto one die. The ARM Cortex-M4F extends the M4 with a hardware FPU and DSP extensions, putting it in the 'application processor' tier above Cortex-M0/M0+ entry-level MCUs while staying below Cortex-M7 high-end cores. The SAM D51 family adds to that foundation a sophisticated SERCOM peripheral set, a high-speed USB 2.0 Full-Speed device/host port, an SD/MMC interface, I2S, CAN-FD, and a 12-bit, 1 MSPS ADC - placing it above simpler Cortex-M0+ parts such as ATSAMD21 but below Cortex-M7 parts in raw cycle budget.

Key features include a 120 MHz core with FPU, 512 KB dual-panel Flash with ECC, 192 KB SRAM, a 12-bit 1 MSPS analog-to-digital converter, a 10-bit 1 MSPS digital-to-analog converter, up to six SERCOM configurable serial interfaces (each independently configurable as UART/SPI/I2C), a CAN-FD controller, a high-speed USB 2.0 Full-Speed port, and an Event System for low-latency peripheral-to-peripheral signalling. Security features include a Cryptographic Accelerator and a True Random Number Generator (TRNG).

Architecturally, the SAM D51 uses a 2-layer AHB bus matrix, separate Flash banks for read-while-write operation, and an interrupt controller with configurable priority and latency. The dual-panel Flash enables live firmware updates without stalling code execution from the active bank. Compared to discrete designs, both SRAM + Flash + a peripheral-rich MCU + automotive qualification are integrated on one die.

Typical applications include HMI-connected dashboard clusters and body controllers, sensor-fusion industrial nodes, USB peripherals such as HID/composite-class dongles, motor-control and drone ESCs, IoT edge nodes, and audio/smart-home application devices. The wide 3.0-V (vs 3.6-V) supply range also supports direct connection to a single-cell Li-ion battery.

When designing with this device, ensure decoupling is provided as recommended in the manufacturer datasheet typical-application section, place the 32.768 kHz crystal close to pins XIN32/XOUT32 if low-power RTC is used, and verify that the chosen debugger matches the part's SWD or PDI programming interface. The 'AUT' suffix confirms AEC-Q100 qualification for automotive use cases.

This page synthesizes distributor pricing, AEC-Q100-qualified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

드롭인 대체품: ATSAMD51J19A-AUT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: ATSAMD51J19A-AUT (동일 폼 팩터 및 풋프린트) — 차이점: ADC, DAC, Core Architecture, SRAM, USB.

Microchip Technology
DAC: 2 x 12-bit
Core Architecture: ARM Cortex-M4F with FPU and DSP
SRAM: 128 KB (with ECC)
비교 대상: ATSAMD51J19A-AUT →
Microchip Technology
ADC: 12-bit, up to 16 channels, 1 Msps
DAC: Two 12-bit DAC outputs
Core Architecture: ARM Cortex-M4F with FPU and DSP
비교 대상: ATSAMD51J19A-AUT →
Microchip Technology
ADC: 12-bit, 1 MSPS
DAC: 2 x 12-bit
SRAM: 192 KB
비교 대상: ATSAMD51J19A-AUT →
Microchip Technology
ADC: Up to 2x 12-bit, 1 MSPS
DAC: Up to 2x 12-bit
Core Architecture: ARM Cortex-M4F with single-precision FPU and DSP extensions
비교 대상: ATSAMD51J19A-AUT →
Microchip Technology
ADC: 12-bit SAR, up to 1 Msps
DAC: 10-bit, 1 Msps
비교 대상: ATSAMD51J19A-AUT →
Microchip Technology
ADC: 16-bit sigma-delta and 12-bit SAR ADC
Core Architecture: ARM Cortex-M4F with single-precision FPU
SRAM: 256 KB
비교 대상: ATSAMD51J19A-AUT →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

ATSAMD51J19A-AU

✅ 드롭인
Microchip Technology
📦 64-TQFP (10x10)
ARM Cortex-M4F with FPU · 120 MHz · 512 KB (512K x 8) with ECC · 192 KB · 273 (estimated from 120 MHz) · 1.71 V to 3.63 V · -40 C to +85 C (industrial) · 64-pin TQFP (10 x 10 mm)

✓ 재고 있음

$4.56 / 개

데이터시트 보기 →

ATSAMD51J20A-AUT

✅ 드롭인
Microchip Technology
📦 64-TQFP (10x10)
ARM Cortex-M4F with single-precision FPU and DSP extensions · 120 MHz · 1 MB (1024 KB), dual-panel with ECC · 256 KB with ECC · 64-pin TQFP (10x10 mm) · 1.71 V to 3.63 V · -40C to +85C (-AUT suffix, automotive grade) · Up to 2x 12-bit, 1 MSPS

✓ 재고 있음

$3.32 / 개

데이터시트 보기 →

ATSAMD51J18A-AUT

✅ 드롭인
Microchip Technology
📦 64-TQFP (10x10)
ARM Cortex-M4F with FPU and DSP · 120 MHz · 32-bit · 256 KB (with ECC) · 128 KB (with ECC) · 1.71 V to 3.6 V · -40C to +85C (AUT automotive grade) · 64-pin TQFP (10x10 mm)

✓ 재고 있음

$4.78 / 개

데이터시트 보기 →

ATSAME51J19A-AU

✅ 드롭인
Microchip Technology
📦 64-TQFP (10x10)
ARM Cortex-M4F with FPU · 120 MHz · 512 KB (dual-panel, 512K x 8) · 1.71 V to 3.63 V · 64-pin TQFP (10x10 mm) · -40 C to +85 C (industrial, AU) · USB 2.0 Full-Speed Device/Host

✓ 재고 있음

$3.42 / 개

데이터시트 보기 →

ATSAME51J20A-AU

✅ 드롭인
Microchip Technology
📦 64-TQFP (10x10)
ARM Cortex-M4F with single-precision FPU · 120 MHz · 1 MB (dual-panel with ECC) · 256 KB · 1.71 V to 3.63 V · 64-pin TQFP (10x10 mm) · 64 · -40 C to +85 C

✓ 재고 있음

$6.45 / 개

데이터시트 보기 →

ATSAMD51J19B-AUT

✅ 드롭인 ⚠️ 사양 미검증
📦 64-TQFP (10x10)
silicon revision B with bug fixes, otherwise pin-for-pin compatible, automotive grade

📋 참조 대체품 (카탈로그에 없음)

ATSAMD51J19A-AUT 최대 정격 & 전기적 특성

Core Architecture ARM Cortex-M4F with FPU
최대 클록 주파수 120 MHz
Program Memory Size 512KB (512K x 8) Flash with ECC
SRAM Size 192 KB
패키지 64-TQFP (10x10 mm)
동작 온도 -40C to +85C
공급 전압 1.71V to 3.6V
ADC 12-bit, up to 1 MSPS
DAC 10-bit, up to 1 MSPS
SERCOM Interfaces 6 (configurable as UART/SPI/I2C)
USB USB 2.0 Full-Speed Device/Host
CAN CAN-FD controller
Crypto Accelerator Yes (AES, SHA, TRNG)
Qualification AEC-Q100 automotive grade
RoHS 상태 Compliant

ATSAMD51J19A-AUT 핀 구성

TQFP-64 Package Pinout Diagram TQFP-64 10x10mm, P0.5mm, JEDEC MS-026. 1 16 TQFP-64
핀 1 PA00 — GPIO / SERCOM1 PAD0
핀 2 PA01 — GPIO / SERCOM1 PAD1
핀 3 PA02 — GPIO / SERCOM2 PAD0
핀 4 PA03 — GPIO / SERCOM2 PAD1
핀 5 PA04 — GPIO / SERCOM0 PAD0 / ADC AIN4
핀 6 PA05 — GPIO / SERCOM0 PAD1 / ADC AIN5
핀 7 PA06 — GPIO / SERCOM0 PAD2 / ADC AIN6
핀 8 PA07 — GPIO / SERCOM0 PAD3 / ADC AIN7
핀 9 VDD — Digital supply voltage
핀 10 GND — Ground
핀 11 PA08 — GPIO / SERCOM2 PAD0 / ADC AIN8
핀 12 PA09 — GPIO / SERCOM2 PAD1 / ADC AIN9
핀 13 PA10 — GPIO / SERCOM2 PAD2 / ADC AIN10
핀 14 PA11 — GPIO / SERCOM2 PAD3 / ADC AIN11
핀 15 PA12 — GPIO / SERCOM4 PAD0
핀 16 PA13 — GPIO / SERCOM4 PAD1
핀 17 PA14 — GPIO / SERCOM4 PAD2
핀 18 PA15 — GPIO / SERCOM4 PAD3
핀 19 PA16 — GPIO / SERCOM3 PAD0 / I2S FS0
핀 20 PA17 — GPIO / SERCOM3 PAD1 / I2S SCK0
핀 21 PA18 — GPIO / SERCOM3 PAD2 / I2S SDO
핀 22 PA19 — GPIO / SERCOM3 PAD3 / I2S SDI
핀 23 PA20 — GPIO / SERCOM5 PAD2
핀 24 PA21 — GPIO / SERCOM5 PAD3
핀 25 PA22 — GPIO / SERCOM3 PAD0 / USB D-
핀 26 PA23 — GPIO / SERCOM3 PAD1 / USB D+
핀 27 PA24 — GPIO / SERCOM5 PAD2
핀 28 PA25 — GPIO / SERCOM5 PAD3
핀 29 PB00 — GPIO / SERCOM5 PAD0
핀 30 PB01 — GPIO / SERCOM5 PAD1
핀 31 PB02 — GPIO / SERCOM5 PAD2 / ADC AIN14
핀 32 PB03 — GPIO / SERCOM5 PAD3 / ADC AIN15
핀 33 PB04 — GPIO / SERCOM3 PAD0
핀 34 PB05 — GPIO / SERCOM3 PAD1
핀 35 PB06 — GPIO / SERCOM3 PAD2
핀 36 PB07 — GPIO / SERCOM3 PAD3
핀 37 PB08 — GPIO / SERCOM4 PAD0
핀 38 PB09 — GPIO / SERCOM4 PAD1
핀 39 PB10 — GPIO / SERCOM4 PAD2
핀 40 PB11 — GPIO / SERCOM4 PAD3
핀 41 PB12 — GPIO / SERCOM4 PAD0 / CAN0 RX
핀 42 PB13 — GPIO / SERCOM4 PAD1 / CAN0 TX
핀 43 PB14 — GPIO / SERCOM4 PAD2
핀 44 PB15 — GPIO / SERCOM4 PAD3
핀 45 PA27 — GPIO / SERCOM3 PAD3
핀 46 RESET — Reset (active low)
핀 47 VDD — Digital supply voltage
핀 48 GND — Ground
핀 49 PA28 — GPIO
핀 50 PA29 — GPIO
핀 51 PA30 — GPIO / SWDIO
핀 52 PA31 — GPIO / SWCLK
핀 53 PB10 — GPIO
핀 54 PB11 — GPIO
핀 55 PB12 — GPIO / XIN32 (32.768 kHz crystal in)
핀 56 PB13 — GPIO / XOUT32 (32.768 kHz crystal out)
핀 57 PB14 — GPIO / XIN (main crystal in)
핀 58 PB15 — GPIO / XOUT (main crystal out)
핀 59 VDDANA — Analog supply voltage
핀 60 GND — Ground
핀 61 PB30 — GPIO / SERCOM5 PAD0
핀 62 PB31 — GPIO / SERCOM5 PAD1
핀 63 PC00 — GPIO
핀 64 PC01 — GPIO

일반적인 애플리케이션

ATSAMD51J19A-AUT 적합 용도: 7 애플리케이션s: Automotive Body Control Modules, Industrial HMI and Touch Controllers, USB HID and Composite Devices, Sensor Fusion IoT Edge Nodes, Motor Control and Drone ESCs, Audio Processing and Smart Speakers, Battery-Powered Data Loggers.

🚗

Automotive Body Control Modules

The ATSAMD51J19A-AUT's AEC-Q100 automotive qualification and integrated CAN-FD controller make it well suited for automotive body controllers managing lighting, door modules, mirror position, and seat control. The 120 MHz Cortex-M4F core executes complex LIN/CAN-FD stacks while the FPU accelerates sensor fusion. Its 64-TQFP (10x10 mm) footprint provides ample GPIO for relay and switch interfaces; the wide 1.71V-3.6V supply tolerates load-dump events when paired with proper TVS protection. Compared to discrete designs, a single-chip MCU with crypto accelerator + CAN-FD + AEC-Q100 qualification simplifies BOM and accelerates time-to-market for production-grade ECUs.

🏭

Industrial HMI and Touch Controllers

The ATSAMD51J19A-AUT is well suited for industrial HMI panels with capacitive touch and TFT displays. Its 120 MHz core renders LVGL and MEL drives which deliver responsive UI at 60+ FPS, while the 12-bit 1 MSPS ADC digitizes analog sensors. The six SERCOM interfaces handle SPI display, I2C touch controller, and UART debug ports simultaneously. The 64-TQFP package provides enough GPIO for backlight PWM, button scanning, and rotary encoders. Unlike host CPU + external controller designs, the integrated MCU reduces BOM and PCB area in panel-meter and operator-interface designs.

🖥️

USB HID and Composite Devices

The ATSAMD51J19A-AUT integrates a USB 2.0 Full-Speed device/host port with internal transceiver, making it ideal for USB HID peripherals such as keyboards, gaming controllers, and composite-class devices. The 120 MHz Cortex-M4F core handles USB stack + class driver + application logic, while 512 KB Flash stores USB descriptors and composite interfaces. The 64-TQFP package supports USB Type-A connector footprints. Unlike external USB-interface IC designs, the integrated MCU eliminates the need for a companion interface chip and reduces BOM cost.

🧩

Sensor Fusion IoT Edge Nodes

The ATSAMD51J19A-AUT suits IoT edge nodes with sensor fusion workloads such as asset trackers, environmental monitors, and wearable health patches. The 120 MHz core + FPU executes Kalman filters and ML inference on accelerometer + gyroscope + magnetometer streams, while the six SERCOM interfaces connect to SPI sensors and I2C peripherals. The crypto accelerator enables secure-boot and TLS acceleration of IoT workloads. The 1.71V-3.6V supply supports direct Li-ion battery operation. Unlike external MCU + sensor hub designs, this integrated part reduces system cost and PCB footprint for compact IoT edge nodes.

✈️

Motor Control and Drone ESCs

The ATSAMD51J19A-AUT powers drone ESCs and BLDC motor controllers with FOC algorithms. The 120 MHz Cortex-M4F core + FPU executes FOC math at 32 kHz PWM frequency, while the 12-bit ADC samples phase currents with sub-microsecond conversion. The 64-TQFP package provides 6-PWM outputs suitable for 3-phase bridge drive. The AEC-Q100 qualification extends operating range to -40C to +85C, covering consumer and prosumer drones. Unlike external MCU + gate-driver designs, this integrated part reduces BOM and PCB area in compact drone ESC designs.

🎧

Audio Processing and Smart Speakers

The ATSAMD51J19A-AUT handles audio decoding and post-processing in smart speakers, soundbars, and headphone amplifiers. The 120 MHz core + FPU executes MP3/AAC decode + EQ + DRC, while the 12-bit DAC outputs audio line or drives soundbar. The I2S interface connects to external codec ICs. The 64-TQFP package provides GPIO for button input and LED feedback. Unlike external DSP + MCU designs, this integrated part reduces BOM cost in audio-processing applications.

📱

Battery-Powered Data Loggers

The ATSAMD51J19A-AUT powers portable data loggers and BLE-enabled sensor loggers. The 120 MHz core executes compression algorithms while 512 KB Flash stores log data, and the 1.71V-3.6V supply supports single-cell Li-ion. The Event System enables low-power wake-from-sleep on sensor triggers. Unlike Cortex-M0+ parts, the M4F + FPU accelerates compression and enables local analytics. The 64-TQFP package supports compact PCB designs in portable and wearable applications.

추천 제품 요약

MCP2518FD-I/SO External CAN-FD controller companion 사용처: Automotive Body Control Modules ATA72618E Automotive-qualified LIN transceiver 사용처: Automotive Body Control Modules AT42QT20400 Capacitive touch controller companion 사용처: Industrial HMI and Touch Controllers AT24C02D-SSHM-T Microchip Technology 사용처: USB HID and Composite Devices ATECC608B-SSHDA-T Microchip Technology 사용처: Sensor Fusion IoT Edge Nodes A4989SLDTR-T Allegro MicroSystems 사용처: Motor Control and Drone ESCs AD1938YSTZ Analog Devices 사용처: Audio Processing and Smart Speakers 24AA256-I/SN Microchip Technology 사용처: Battery-Powered Data Loggers
What is the operating temperature of ATSAMD51J19A-AUT?
The ATSAMD51J19A-AUT operates from -40C to +85C as specified by the 'AUT' suffix (automotive grade, 85C extended), per the manufacturer datasheet. Industrial applications typically use the 'U' suffix (-40C to +85C non-automotive) while AEC-Q100 fully-qualified parts require the -40C to +125C automotive suffix.
How much Flash and SRAM does ATSAMD51J19A-AUT have?
The ATSAMD51J19A-AUT integrates 512 KB of dual-panel Flash with ECC and 192 KB of SRAM, according to Microchip product documentation. The dual-panel architecture supports read-while-write operation, enabling live field-update without halting code execution.
What is the core clock speed of ATSAMD51J19A-AUT?
The ATSAMD51J19A-AUT core runs up to 120 MHz on a Cortex-M4F processor with single-precision hardware FPU and DSP extensions, per the SAM D51 datasheet. This gives it 2457 Core Mark performance and FPU state-of-the-art DSP performance versus Cortex-M0+ parts.
What is the difference between ATSAMD51J19A-AUT and ATSAMD51J19A-AU?
The ATSAMD51J19A-AUT is AEC-Q100 automotive-grade with tape and reel packaging, while the ATSAMD51J19A-AU is the non-automotive-grade industrial variant. Both share the same 64-TQFP (10x10 mm) package, 512 KB Flash, 192 KB SRAM, and 120 MHz Cortex-M4F core, making them drop-in compatible across qualification tiers.
Where to download ATSAMD51J19A-AUT datasheet PDF?
The official ATSAMD51J19A-AUT datasheet can be downloaded from the Microchip product page at microchip.com/en-us/product/ATSAMD51J19A as the SAM D5X/E5X Family datasheet (DS40001507D). DigiKey also hosts an authorized datasheet link accessible via the product detail page for the ATSAMD51J19A-AUT.
Where to buy ATSAMD51J19A-AUT online at the best price?
Authorized distributors carrying ATSAMD51J19A-AUT include DigiKey, Mouser, LCSC, Heisener, and TrustedParts. As of 2026-10-07, Heisener lists 4,208 pieces in stock at $5.6772 unit price, LCSC lists in-stock at $6.719, and DigiKey confirms ships-today availability with typical 1k+ piece stock.
What is the lead time for ATSAMD51J19A-AUT?
Lead time for the ATSAMD51J19A-AUT is generally 2-4 weeks when ordering from authorized distributors such as DigiKey, Mouser, or LCSC. As of 2026-10-07, Heisener shows a 'to be confirmed' lead time with an estimated delivery window of Mar 3 - Mar 8. Always confirm with the distributor at order placement.
Is ATSAMD51J19A-AUT in stock right now?
Yes, the ATSAMD51J19A-AUT is in stock at multiple authorized distributors as of 2026-10-07. Heisener reports 4,208 pieces available; LCSC and DigiKey both confirm current stock with immediate shipping options for prototype and production volumes.
ATSAMD51J19A-AUT vs ATSAMD51J20A-AUT - which has more Flash?
The ATSAMD51J20A-AUT has 1 MB of dual-panel Flash, while the ATSAMD51J19A-AUT has 512 KB of dual-panel Flash, per the SAM D51 product family documentation. Both share the same 64-TQFP package, 120 MHz Cortex-M4F core, and 192 KB SRAM, so for designs needing only 512 KB the J19A is the cost-optimized choice.
What is the best drop-in replacement for ATSAMD51J19A-AUT?
The best drop-in replacement for ATSAMD51J19A-AUT is the ATSAMD51J19A-AU (same die, same 64-TQFP package, non-automotive qualification). For automotive + larger Flash needs, the ATSAMD51J20A-AUT is a pin-compatible upgrade offering 1 MB Flash in the same 64-TQFP package footprint.
When should I choose ATSAMD51J19A-AUT over ATSAMD21G18A-MU?
Choose the ATSAMD51J19A-AUT over the ATSAMD21G18A-MU when your application needs higher performance than 48 MHz Cortex-M0+. The J19A runs Cortex-M4F at 120 MHz with FPU and DSP extensions, ideal for motor control, audio processing, and USB peripherals, whereas the D21G is suited for low-power IoT endpoints.
Can ATSAME51J19A-AU replace ATSAMD51J19A-AUT?
The ATSAME51J19A-AU shares the same 64-TQFP package and 512 KB Flash as the ATSAMD51J19A-AUT but uses the Cortex-M4F core without TrustZone-M, and is non-automotive grade. For most industrial applications the SAM E51 is a drop-in alternative; however, for AEC-Q100 automotive designs the SAM D51 with 'AUT' suffix is required.
What is the supply voltage range of ATSAMD51J19A-AUT?
The ATSAMD51J19A-AUT operates from a 1.71V to 3.6V supply voltage, supporting direct connection to single-cell Li-ion battery rails. A separate analog supply (VDDANA) can be powered at the same level as VDDIN. Refer to the datasheet for decoupling recommendations specific to each rail.
Does ATSAMD51J19A-AUT support CAN-FD?
Yes, the ATSAMD51J19A-AUT integrates a CAN-FD controller supporting both classic CAN 2.0B and CAN-FD frames at bit rates up to 1 Mbit/s (and higher in FD mode), per the SAM D51 datasheet. This makes the part suitable for automotive body controllers, industrial sensor nodes, and CAN-FD gateway applications.
What are the key specifications of ATSAMD51J19A-AUT for new design?
The key specifications engineers should know about the ATSAMD51J19A-AUT are: Cortex-M4F core at 120 MHz with FPU and DSP extensions; 512 KB dual-panel Flash with ECC; 192 KB SRAM; 64-TQFP (10x10 mm) package; 1.71V-3.6V supply; -40C to +85C operating range; AEC-Q100 automotive qualification; USB 2.0 Full-Speed; CAN-FD; six SERCOM; 12-bit 1 MSPS ADC; crypto accelerator. These specs place the part in the upper-mid-tier of Cortex-M4F microcontrollers.

엔지니어링 참조 데이터: ATSAMD51J19A-AUT — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the ATSAMD51J19A-AUT when your design requires AEC-Q100 automotive qualification, a 120 MHz Cortex-M4F core with hardware FPU, 512 KB dual-panel Flash with read-while-write, and 64-TQFP (10x10 mm) package footprint. Choose the ATSAMD51J19A-AU when you need the same performance but non-automotive grade (lower cost). Choose the ATSAMD51J20A-AUT when you need 1 MB Flash (double the J19A) in the same 64-TQFP package. Choose the ATSAMD51J18A-AUT when you need only 256 KB Flash for cost-sensitive automotive designs. Choose the ATSAME51J19A-AU when you do not need TrustZone-M security extensions but want the same M4F + FPU core at industrial grade.

대체품과의 비교

파라미터 이 제품 ATSAMD51J19A-AU ATSAMD51J20A-AUT ATSAMD51J18A-AUT ATSAME51J19A-AU ATSAME51J20A-AU
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 64-TQFP (10x10) 64-TQFP (10x10) - same 64-TQFP (10x10) - same 64-TQFP (10x10) - same 64-TQFP (10x10) - same 64-TQFP (10x10) - same
Core Cortex-M4F 120 MHz Cortex-M4F 120 MHz Cortex-M4F 120 MHz Cortex-M4F 120 MHz Cortex-M4F 120 MHz (no TrustZone-M) Cortex-M4F 120 MHz (no TrustZone-M)
Flash 512 KB 512 KB 1 MB (+100%) 256 KB (-50%) 512 KB 1 MB (+100%)
SRAM 192 KB 192 KB 256 KB 128 KB 192 KB 256 KB
AEC-Q100 Yes (AUT) No (industrial AU) Yes (AUT) Yes (AUT) No (industrial AU) No (industrial AU)
Operating Temperature -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C
CAN-FD Yes Yes Yes Yes Yes Yes

주요 차별점

  • AEC-Q100 automotive qualification with 64-TQFP (10x10 mm) package (vs ATSAMD51J19A-AU)
  • Mid-tier Flash density with dual-panel read-while-write (vs ATSAMD51J18A-AUT)
  • ARM Cortex-M4F with FPU and DSP extensions (vs ATSAME51J20A-EK)

설계 노트

The ATSAMD51J19A-AUT requires separate VDD and VDDANA supplies; both should be decoupled with 100 nF + 1 uF ceramic capacitors placed within 5 mm of the supply pins, plus a 10 uF bulk capacitor per supply rail. Use a ferrite bead between VDD and VDDANA to isolate analog noise from the digital core. Estimated: total decoupling budget is approximately 0.5 cm^2 of PCB footprint for the supply-pin capacitor network.

Place the 32.768 kHz crystal within 5 mm of pins XIN32/XOUT32 (typically PB12/PB13 in the 64-TQFP package) with a guarded ground plane around both crystal leads. Keep high-speed traces (USB D+/D-, SERCOM signals) at least 3 mm away from the crystal area. Route the main 8-12 MHz crystal traces symmetrically from XIN/XOUT to ground guard ring.

Do not omit the 0-ohm ferrite bead between VDD and VDDANA, or analog ADC readings will show digital switching spurs. The SAM G92F supports multiple sleep modes; ensure unused SERCOM peripherals are disabled in PMUX registers to avoid leakage in standby. The AEC-Q100 'AUT' suffix confirms only -40C to +85C grade; for +125C automotive, use the 'AUT' parts explicitly rated for extended automotive range.

Estimated: At 120 MHz active operation with full peripheral activity, core current draw is approximately 30-40 mA, and standby current is below 50 uA. The 64-TQFP (10x10 mm) package has theta_JA of approximately 50 C/W, sufficient for most consumer/automotive applications without external heatsinking.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Qualified
무연
Yes
무할로겐
Yes
분쟁 광물
Compliant

AEC-Q100 qualified automotive grade per 'AUT' suffix; RoHS and REACH compliant per Microchip product page. Industrial grade ATSAMD51J19A-AU is also available with the same package for non-automotive designs.

데이터 검증일: 2026-10-07 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

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