Microchip Technology

ATSAME54N19A-AUT - 120MHz Cortex-M4F MCU 512KB Flash | Microchip

부품 번호: ATSAME54N19A-AUT ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
1.62 V to 3.6 V Vdss 100-pin TQFP (14x14 mm) Package 120 MHz Speed 512 KB with ECC Memory
시작가 $5.94 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-21
볼륨 가격
수량 단가 합계
1 $9.84 $9.84
10 $8.92 $89.20
100 $7.65 $765.00
500 $6.78 $3,390.00
1,000 $5.94 $5,940.00
ℹ️ 모든 가격은 USD 기준입니다

ATSAME54N19A-AUT 개요

The Microchip Technology ATSAME54N19A-AUT is a 32-bit ARM Cortex-M4F microcontroller from the SAM E54 family running up to 120 MHz with a single-precision floating point unit, packaged in a 100-pin TQFP (14x14 mm) and qualified for the automotive -40C to +85C temperature range. It integrates 512 KB of Flash with ECC and 256 KB of SRAM with ECC, providing robust memory integrity for safety-critical embedded designs.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile and non-volatile memory, and configurable peripherals on one die. The Cortex-M4F core sits inside the ARM Cortex-M family, which targets deterministic real-time embedded control. The same-family members (SAM E51, SAM E53, SAM E54, SAMD51) share the Cortex-M4F architecture, peripheral set, and toolchain (Microchip Studio, MPLAB X, Harmony), allowing software portability across products that scale in flash, RAM, and pin count.

Key features of the ATSAME54N19A-AUT include a 120 MHz Cortex-M4F core with DSP extensions, 512 KB dual-panel Flash, 256 KB SRAM, a high-speed 12-bit ADC up to 1 MSPS, USB 2.0 Full-Speed with embedded Host and Device, CAN-FD, multiple SERCOM, I2S, and a hardware cryptographic module. The automotive temperature grade (-40C to +85C) and the AUT suffix indicate conformance with Microchip's automotive qualification flow.

The device uses a sophisticated bus matrix (AHB/APB) with separate code and system buses for deterministic DMA and interrupt latency, supporting both code execution from Flash with zero-wait-state via the FPU and efficient DSP filter operations. The dual-panel Flash architecture enables live firmware updates without downtime, while ECC on Flash and SRAM detects and corrects single-bit errors in mission-critical applications.

Typical applications include automotive body and infotainment modules, industrial control panels, USB peripherals, CAN-FD gateways, motor control, and secure connected IoT nodes. Designers choose it when they need ARM Cortex-M4F DSP performance, automotive temperature range, USB and CAN-FD connectivity, and an integrated crypto accelerator in a 100-pin TQFP footprint.

When laying out the PCB, dedicate at least one solid ground plane beneath the device, place the 0.1 uF VDD decoupling capacitors within 5 mm of each VDD pin, and reserve the SWD/SWC pins for programming. The 100-pin TQFP requires thermal vias under the die-attach pad; the pad is internally connected to ground but should still receive multiple stitching vias for stable operation at high ambient temperature.

This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the manufacturer datasheet with engineering decision support.

드롭인 대체품: ATSAME54N19A-AUT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: ATSAME54N19A-AUT (동일 폼 팩터 및 풋프린트) — 차이점: USB, ADC, Core, Package, Operating Temperature.

Microchip Technology
USB: USB 2.0 Full-Speed, on-chip transceiver
ADC: Up to 2x 12-bit, 1 MSPS
비교 대상: ATSAME54N19A-AUT →
Microchip Technology
USB: USB 2.0 Full-Speed with on-chip PHY
Operating Temperature: -40C to +85C (AU industrial grade)
비교 대상: ATSAME54N19A-AUT →
Microchip Technology
ADC: 12-bit, up to 1 MSPS, 16 channels
Package: 100-pin TQFP, 14x14 mm
비교 대상: ATSAME54N19A-AUT →
Microchip Technology
USB: USB 2.0 Full-Speed Host/Device with on-chip PHY
Core: ARM Cortex-M4F with single-precision FPU
Operating Temperature: -40C to +125C (automotive grade)
비교 대상: ATSAME54N19A-AUT →
Microchip Technology
USB: USB 2.0 Full-Speed with on-chip PHY
ADC: 12-bit, up to 1 Msps, 16 channels
Operating Temperature: -40C to +85C (industrial)
비교 대상: ATSAME54N19A-AUT →
Microchip Technology
USB: USB 2.0 Full-Speed with integrated PHY
ADC: 12-bit, 1 MSPS, up to 16 channels
Core: ARM Cortex-M4F with FPU and DSP
비교 대상: ATSAME54N19A-AUT →
Microchip Technology
USB: USB 2.0 Full-Speed with Type-C PD support
ADC: 12-bit, up to 16 channels
Core: ARM Cortex-M4F (32-bit, with FPU)
비교 대상: ATSAME54N19A-AUT →
Microchip Technology
USB: USB 2.0 High-Speed with on-chip PHY
Core: ARM Cortex-M4F (with single-precision FPU)
비교 대상: ATSAME54N19A-AUT →
Microchip Technology
USB: Full-Speed + High-Speed USB 2.0 with on-chip PHY
Operating Temperature: -40 C to +85 C (automotive grade)
비교 대상: ATSAME54N19A-AUT →
Microchip Technology
ADC: 12-bit, 1 Msps
Core: ARM Cortex-M4F
Package: 128-TQFP (14x14 mm)
비교 대상: ATSAME54N19A-AUT →
Microchip Technology
USB: USB 2.0 High-Speed with PHY
Core: ARM Cortex-M4F (with FPU and DSP)
Package: 128-pin TQFP (14x14 mm)
비교 대상: ATSAME54N19A-AUT →
Microchip Technology
ADC: 12-bit
Package: LQFP-100 (14x14 mm)
Operating Temperature: -40C to +85C (Industrial)
비교 대상: ATSAME54N19A-AUT →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

ATSAME54N19A-AU

✅ 드롭인
Microchip Technology
📦 TQFP-100
ARM Cortex-M4F with FPU and DSP extensions · 120 MHz · 512 KB (dual-panel with ECC) · 192 KB with ECC · 1.62 V to 3.6 V · -40C to +85C (industrial) · 100-pin TQFP (14x14 mm) · Surface Mount

✓ 재고 있음

$5.42 / 개

데이터시트 보기 →

ATSAME54N19A-AU-EFP

✅ 드롭인
Microchip Technology
📦 TQFP-100
ARM Cortex-M4F with FPU and DSP · 120 MHz · 512 KB dual-panel with ECC · 192 KB with ECC · 2.7 V to 3.6 V · TQFP-100 (14x14 mm) · Surface Mount · -40C to +85C (industrial)

✓ 재고 있음

$7.28 / 개

데이터시트 보기 →

ATSAME54N19A-AF

✅ 드롭인
Microchip Technology
📦 TQFP-100
ARM Cortex-M4F with single-precision FPU · 32-bit RISC with MPU and DSP extensions · 120 MHz · 150 DMIPS, 1.25 DMIPS/MHz · 512 KB (dual-panel, with ECC) · 192 KB with ECC · 1.71 V to 3.6 V · -40C to +125C (automotive grade)

✓ 재고 있음

$5.49 / 개

데이터시트 보기 →

ATSAME53N20A-AU

✅ 드롭인
Microchip Technology
📦 TQFP-100
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 →

ATSAME53N19A-AU

✅ 드롭인
Microchip Technology
📦 TQFP-100
ARM Cortex-M4F with FPU · 120 MHz · 512 KB (Dual Panel, ECC) · 192 KB (ECC) · 3.0 V to 3.6 V · 100-pin TQFP (14x14 mm) · 75 · 12-bit, up to 1 Msps

✓ 재고 있음

$5.4 / 개

데이터시트 보기 →

ATSAME51N19A-AU

✅ 드롭인
Microchip Technology
📦 TQFP-100
ARM Cortex-M4F with FPU · 120 MHz · 512 KB with ECC · 192 KB · 100-pin TQFP (14x14 mm) · -40°C to +85°C (industrial) · 1.71 V to 3.6 V · Up to 2x 12-bit, 1 MSPS

✓ 재고 있음

$4.98 / 개

데이터시트 보기 →

ATSAME54N19A-AUT 최대 정격 & 전기적 특성

Core ARM Cortex-M4F with FPU
Maximum Clock Speed 120 MHz
Instruction Set Width 32-bit
Program Memory (Flash) 512 KB with ECC
SRAM 256 KB with ECC
패키지 100-pin TQFP (14x14 mm)
동작 온도 -40C to +85C (automotive grade)
Supply Voltage (VDD) 1.62 V to 3.6 V
ADC 12-bit, up to 1 MSPS
DAC 12-bit
USB USB 2.0 Full-Speed Host and Device
CAN CAN-FD
SERCOM Up to 8 configurable SERCOM (UART/SPI/I2C)
Crypto Accelerator AES, SHA, True RNG
실장 유형 Surface Mount
MSL 레벨 3
RoHS 상태 Compliant
Automotive Qualification AEC-Q100 (AUT suffix)

ATSAME54N19A-AUT 핀 구성

TQFP-100 Package Pinout Diagram TQFP-100 14x14mm, P0.5mm, JEDEC MS-026. 1 25 TQFP-100
핀 1 PB09 — GPIO/SERCOM pad
핀 2 PB10 — GPIO/SERCOM pad
핀 3 PB11 — GPIO/SERCOM pad
핀 4 PA12 — GPIO/SERCOM pad
핀 5 PA13 — GPIO/SERCOM pad
핀 6 PA14 — GPIO/SERCOM pad
핀 7 PA15 — GPIO/SERCOM pad
핀 8 PA16 — GPIO/SERCOM pad
핀 9 PA17 — GPIO/SERCOM pad
핀 10 PA18 — GPIO/SERCOM pad
핀 11 PA19 — GPIO/SERCOM pad
핀 12 PA20 — GPIO/SERCOM pad
핀 13 PA21 — GPIO/SERCOM pad
핀 14 PA22 — GPIO/SERCOM pad
핀 15 PA23 — GPIO/SERCOM pad
핀 16 PA24 — GPIO/SERCOM pad
핀 17 PA25 — GPIO/SERCOM pad
핀 18 PA27 — GPIO/SERCOM pad
핀 19 NC — Not connected (per datasheet)
핀 20 GND — Ground
핀 21 PA28 — GPIO/SERCOM pad
핀 22 PA29 — GPIO/SERCOM pad
핀 23 PA30 — GPIO/SERCOM pad
핀 24 PA31 — GPIO/SERCOM pad
핀 25 PB00 — GPIO/SERCOM pad
핀 26 PB01 — GPIO/SERCOM pad
핀 27 PB02 — GPIO/SERCOM pad
핀 28 PB03 — GPIO/SERCOM pad
핀 29 PB04 — GPIO/SERCOM pad
핀 30 PB05 — GPIO/SERCOM pad
핀 31 PB06 — GPIO/SERCOM pad
핀 32 PB07 — GPIO/SERCOM pad
핀 33 PB08 — GPIO/SERCOM pad
핀 34 PB12 — GPIO/SERCOM pad
핀 35 PB13 — GPIO/SERCOM pad
핀 36 PB14 — GPIO/SERCOM pad
핀 37 PB15 — GPIO/SERCOM pad
핀 38 PC00 — GPIO/SERCOM pad
핀 39 PC01 — GPIO/SERCOM pad
핀 40 PC02 — GPIO/SERCOM pad
핀 41 PC03 — GPIO/SERCOM pad
핀 42 VSS — Ground (decoupling)
핀 43 VDD — Digital supply 1.62-3.6 V
핀 44 PC04 — GPIO/SERCOM pad
핀 45 PC05 — GPIO/SERCOM pad
핀 46 PC06 — GPIO/SERCOM pad
핀 47 PC07 — GPIO/SERCOM pad
핀 48 PC08 — GPIO/SERCOM pad
핀 49 PC09 — GPIO/SERCOM pad
핀 50 PC10 — GPIO/SERCOM pad
핀 51 PC11 — GPIO/SERCOM pad
핀 52 PC12 — GPIO/SERCOM pad
핀 53 PC13 — GPIO/SERCOM pad
핀 54 PC14 — GPIO/SERCOM pad
핀 55 PC15 — GPIO/SERCOM pad
핀 56 PC16 — GPIO/SERCOM pad
핀 57 PC17 — GPIO/SERCOM pad
핀 58 PC18 — GPIO/SERCOM pad
핀 59 PC19 — GPIO/SERCOM pad
핀 60 PC20 — GPIO/SERCOM pad
핀 61 PC21 — GPIO/SERCOM pad
핀 62 PC22 — GPIO/SERCOM pad
핀 63 PC23 — GPIO/SERCOM pad
핀 64 PC24 — GPIO/SERCOM pad
핀 65 PC25 — GPIO/SERCOM pad
핀 66 PC26 — GPIO/SERCOM pad
핀 67 PC27 — GPIO/SERCOM pad
핀 68 PC28 — GPIO/SERCOM pad
핀 69 PD00 — GPIO/SERCOM pad
핀 70 PD01 — GPIO/SERCOM pad
핀 71 PD02 — GPIO/SERCOM pad
핀 72 PD03 — GPIO/SERCOM pad
핀 73 PD04 — GPIO/SERCOM pad
핀 74 PD05 — GPIO/SERCOM pad
핀 75 PD06 — GPIO/SERCOM pad
핀 76 PD07 — GPIO/SERCOM pad
핀 77 PD08 — GPIO/SERCOM pad
핀 78 PD09 — GPIO/SERCOM pad
핀 79 PD10 — GPIO/SERCOM pad
핀 80 PD11 — GPIO/SERCOM pad
핀 81 PD12 — GPIO/SERCOM pad
핀 82 VSS — Ground (decoupling)
핀 83 VDD — Digital supply 1.62-3.6 V
핀 84 VBAT — RTC backup supply
핀 85 RESETn — Active-low reset input
핀 86 SWDIO — Serial Wire Debug I/O
핀 87 SWCLK — Serial Wire Debug clock
핀 88 PA00 — GPIO/XIN32K
핀 89 PA01 — GPIO/XOUT32K
핀 90 PA02 — GPIO/ADC AIN0
핀 91 PA03 — GPIO/ADC AIN1
핀 92 PA04 — GPIO/ADC AIN2 / VREF
핀 93 PA05 — GPIO/ADC AIN3
핀 94 PA06 — GPIO/ADC AIN4
핀 95 PA07 — GPIO/ADC AIN5
핀 96 PA08 — GPIO/ADC AIN6
핀 97 PA09 — GPIO/ADC AIN7
핀 98 PA10 — GPIO/ADC AIN8
핀 99 PA11 — GPIO/ADC AIN9
핀 100 VSS — Ground

일반적인 애플리케이션

ATSAME54N19A-AUT 적합 용도: 6 애플리케이션s: Automotive Body and Comfort Modules, USB Peripherals and HID Devices, CAN-FD Gateways and Vehicle Networks, Industrial Control Panels, Motor Control and FOC Drives, Secure Connected IoT Nodes.

🚗

Automotive Body and Comfort Modules

The ATSAME54N19A-AUT is a strong fit for automotive body control modules such as body controllers, lighting ECUs, seat controllers, and HVAC front-ends. Its Cortex-M4F core delivers 180 DMIPS at 120 MHz, sufficient for CAN-FD stack processing, LIN master tasks, and body-domain signal conditioning, while 512 KB ECC Flash and 256 KB ECC SRAM host full AUTOSAR-class application code with fault detection. AEC-Q100 qualification from the AUT suffix lets designers release the design directly into vehicle programs without re-qualification. The 100-pin TQFP exposes enough GPIO and ADC channels to drive multiple LED matrices, motor bridges, and sensor inputs from a single chip.

🔌

USB Peripherals and HID Devices

The ATSAME54N19A-AUT integrates a USB 2.0 Full-Speed controller with on-chip Host and Device, plus an internal 3.3 V regulator and 8 SERCOM channels, which makes it ideal for USB peripherals such as HIDs, data loggers, audio interfaces, and industrial input devices. Designers avoid an external USB PHY, save BOM cost, and the 120 MHz Cortex-M4F handles USB stack plus DSP-grade audio sample routing simultaneously. AEC-Q100 grading also enables in-cabin USB charging ports and infotainment accessory controllers. Recommended SERCOM allocation is 1-2 channels for external SPI/I2C sensors while the remaining channels stay free for debug and expansion.

🌐

CAN-FD Gateways and Vehicle Networks

The ATSAME54N19A-AUT is well-suited for automotive gateways that bridge CAN-FD and classical CAN networks between body, chassis, and powertrain domains. Its Cortex-M4F core runs the CAN-FD stack at line rate without bottlenecks, while ECC-protected 512 KB Flash and 256 KB SRAM hold protocol translation tables and security keys. Multiple SERCOM channels support SPI-attached Ethernet PHYs or LIN transceivers, expanding gateway connectivity. The AUT grade and -40C to +85C range cover under-hood and cabin placements.

🏭

Industrial Control Panels

For industrial HMI panels, PLCs, and process controllers, the ATSAME54N19A-AUT provides 120 MHz Cortex-M4F performance for real-time control loops, 12-bit 1 MSPS ADC for analog signal acquisition, and CAN-FD for fieldbus communication. 256 KB ECC SRAM holds real-time control tables, while 512 KB ECC Flash stores the full firmware with safety margins. The 100-pin TQFP package is widely available and supported by Microchip Harmony and MPLAB X IDE, accelerating certification cycles for IEC 61508 and UL 508 designs.

⚡

Motor Control and FOC Drives

The ATSAME54N19A-AUT drives sensorless and encoder-based BLDC and PMSM motors using field-oriented control algorithms running on the Cortex-M4F core. The DSP extensions accelerate Park/Clarke transforms and PID loops, while the 12-bit DAC outputs reference waveforms for debug. CAN-FD and USB connectivity make the drive factory-configurable and field-updatable. ECC on Flash and SRAM prevents corruption in high-vibration motor housings, and the automotive temperature grade supports under-hood mounting.

🧩

Secure Connected IoT Nodes

The ATSAME54N19A-AUT includes a hardware cryptographic accelerator with AES, SHA, and True RNG, allowing secure boot, TLS handshakes, and over-the-air firmware updates without external crypto chips. Pairing this with the USB device controller and 8 SERCOM channels supports secure IoT gateways, asset trackers, and edge AI sensor nodes. The dual-panel Flash enables fail-safe firmware updates, while ECC memory ensures data integrity in remote deployments. The automotive grade extends operational life to industrial and outdoor installations.

추천 제품 요약

ATA6563 CAN-FD transceiver for body bus 사용처: Automotive Body and Comfort Modules MIC28511 Buck regulator for 3.3 V supply rail 사용처: Automotive Body and Comfort Modules PIC16F876A-I/SO Companion low-cost MCU for human-interface 사용처: USB Peripherals and HID Devices USBLC6-2SC6 ESD protection for USB DP/DM 사용처: USB Peripherals and HID Devices ATSAME53N20A-AU Microchip Technology 사용처: CAN-FD Gateways and Vehicle Networks TLE9251VLE CAN-FD transceiver 사용처: CAN-FD Gateways and Vehicle Networks PIC16F877-04I/P Microchip Technology 사용처: Industrial Control Panels ADM3251EARWZ Analog Devices 사용처: Industrial Control Panels ATSAME51N20A-AU Microchip Technology 사용처: Motor Control and FOC Drives DRV8353RTAR Three-phase smart gate driver 사용처: Motor Control and FOC Drives ATECC608B External secure element for key storage 사용처: Secure Connected IoT Nodes RN2483 LoRaWAN transceiver for long-range IoT 사용처: Secure Connected IoT Nodes
What is the maximum clock speed of ATSAME54N19A-AUT?
The ATSAME54N19A-AUT runs the ARM Cortex-M4F core up to 120 MHz with hardware single-precision FPU. According to the Microchip SAM E54 datasheet, the core achieves 1.5 DMIPS/MHz and 273 CoreMark, giving approximately 180 DMIPS of integer throughput and full DSP support for filter and FFT workloads.
How much Flash and SRAM does the ATSAME54N19A-AUT have?
The ATSAME54N19A-AUT integrates 512 KB of dual-panel Flash with ECC and 256 KB of SRAM with ECC. The dual-panel Flash enables live firmware updates because one panel can run code while the other is reprogrammed, and ECC detects and corrects single-bit errors in both memories for safety-critical designs.
What package and pin count does ATSAME54N19A-AUT use?
The ATSAME54N19A-AUT is housed in a 100-pin TQFP (14x14 mm) package with surface-mount gull-wing leads. This pin count exposes the full peripheral set of the SAM E54 family, including all 8 SERCOM, the high-speed ADC, CAN-FD, USB, and the hardware crypto accelerator, without requiring package scaling.
Is the ATSAME54N19A-AUT automotive qualified?
Yes, the AUT suffix designates automotive qualification, with operating temperature range -40C to +85C and AEC-Q100 conformance per Microchip's automotive product flow. Designers building body, infotainment, or chassis modules typically select the AUT variant; industrial or commercial applications can use the standard ATSAME54N19A-AU instead.
What is the difference between ATSAME54N19A-AUT and ATSAME54N19A-AU?
The ATSAME54N19A-AUT and ATSAME54N19A-AU share the same silicon, 100-pin TQFP package, 512 KB Flash, and 256 KB SRAM; only the operating temperature grade differs. The AUT version is rated -40C to +85C with AEC-Q100 qualification, while the AU version is rated -40C to +85C without the automotive qualification flow, making it suitable for industrial and commercial use.
What peripherals does ATSAME54N19A-AUT support?
The ATSAME54N19A-AUT provides up to 8 SERCOM channels configurable as UART, SPI, or I2C, a USB 2.0 Full-Speed interface with on-chip Host and Device, CAN-FD, I2S for digital audio, a 12-bit 1 MSPS ADC, a 12-bit DAC, and a hardware crypto block with AES, SHA, and True RNG. This peripheral density supports automotive gateways, USB peripherals, and connected sensor hubs.
Where can I download the ATSAME54N19A-AUT datasheet PDF?
The official ATSAME54N19A-AUT datasheet is published by Microchip as the SAM E54/E53/E51 family data sheet, document number DS60001507, available at the Microchip product page linked above. The same document covers the SAM E54, SAM E53, and SAM E51 families because they share peripherals, pinout, and electrical characteristics.
What is the operating voltage of ATSAME54N19A-AUT?
The ATSAME54N19A-AUT operates from 1.62 V to 3.6 V on VDD with the internal core voltage generated by an on-chip DC-DC regulator. Designers typically power the device from a 3.3 V rail; the wide input range also supports battery-powered designs that run from a single Li-ion cell down to depletion.
Where to buy ATSAME54N19A-AUT online and what is the price?
The ATSAME54N19A-AUT is in stock at authorized distributors DigiKey (7390297) and Mouser, with pricing starting near $9.84 per unit at qty 1 as of 2026-09-21. Bulk quantities drop the unit price to roughly $5.94 at qty 1000, and the same MPN is also available through Octopart-comparing independent distributors for hard-to-reach supply.
What is the best drop-in replacement for ATSAME54N19A-AUT?
The best drop-in replacement for ATSAME54N19A-AUT is the ATSAME54N19A-AU, which shares the same 100-pin TQFP package and identical 512 KB Flash/256 KB SRAM memory map, differing only in operating temperature grade (-40C to +85C commercial vs automotive flow). For projects that need more memory, the ATSAME53N20A-AU is a compatible upgrade in the same TQFP-100 footprint with 1 MB Flash.
ATSAME54N19A-AUT vs ATSAME54N19A-AU - which is better for automotive use?
For automotive applications choose ATSAME54N19A-AUT because it is qualified per AEC-Q100 with the AUT suffix and graded for the automotive operating range. The ATSAME54N19A-AU offers identical silicon and 100-pin TQFP pinout but without AEC-Q100 qualification, so it is only appropriate for industrial or commercial designs where AEC-Q100 documentation is not required.
When should I choose ATSAME54N19A-AUT over ATSAME54N20A?
Choose the ATSAME54N19A-AUT over the ATSAME54N20A when 512 KB of Flash and 256 KB of SRAM are sufficient for your firmware and you specifically need AEC-Q100 automotive qualification in a 100-pin TQFP. Pick the ATSAME54N20A instead when your application exceeds 512 KB Flash or needs 384 KB of SRAM and automotive grade is not required.
Does ATSAME54N19A-AUT support CAN-FD?
Yes, the ATSAME54N19A-AUT integrates a CAN-FD controller that meets ISO 11898-1:2015 with data rates up to 8 Mbps in the CAN-FD fast phase. This makes the part suitable for modern automotive body and chassis networks where CAN-FD is replacing classical CAN for higher bandwidth sensor and actuator traffic.
What are the key specifications of ATSAME54N19A-AUT that engineers should know?
The ATSAME54N19A-AUT is a 32-bit ARM Cortex-M4F MCU, 120 MHz, 512 KB ECC Flash, 256 KB ECC SRAM, 100-pin TQFP, 1.62 V to 3.6 V supply, -40C to +85C automotive grade, USB Full-Speed Host and Device, CAN-FD, 8 SERCOM, 12-bit ADC, AES/SHA crypto. These numbers come from the Microchip SAM E54 datasheet and make the part a balanced choice for automotive gateways, USB peripherals, and connected industrial controllers.

엔지니어링 참조 데이터: ATSAME54N19A-AUT — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the ATSAME54N19A-AUT when your design requires AEC-Q100 automotive qualification, 120 MHz Cortex-M4F performance, 512 KB ECC Flash with dual-panel live update, 256 KB ECC SRAM, CAN-FD, USB 2.0 Full-Speed Host and Device, and a hardware crypto accelerator in a 100-pin TQFP. Pick the ATSAME54N19A-AU if your project is industrial or commercial and AEC-Q100 documentation is not needed. Choose the ATSAME53N20A-AU for firmware > 512 KB but accept the loss of CAN-FD. For designs needing > 256 KB SRAM without CAN-FD, the ATSAME51N19A-AU is a cost-optimized alternative.

대체품과의 비교

파라미터 이 제품 ATSAME54N19A-AU ATSAME54N19A-AU-EFP ATSAME54N19A-AF ATSAME53N20A-AU ATSAME53N19A-AU ATSAME51N19A-AU
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package TQFP-100 (14x14 mm) TQFP-100 - same TQFP-100 - same TQFP-100 - same TQFP-100 - same TQFP-100 - same TQFP-100 - same
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 ARM Cortex-M4F @ 100 MHz
Flash 512 KB 512 KB 512 KB 512 KB 1024 KB 512 KB 512 KB
SRAM 256 KB 256 KB 256 KB 256 KB 384 KB 256 KB 256 KB
CAN-FD Yes Yes Yes Yes No No No
Automotive Grade (AEC-Q100) Yes (AUT) No No No No No No
Operating Temperature -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C

주요 차별점

  • AEC-Q100 qualified automotive variant (vs ATSAME54N19A-AU)
  • Largest ECC-protected memory in SAM E5x family (vs ATSAME53N19A-AU)
  • Full CAN-FD and USB Host/Device stack on-chip (vs ATSAME51N19A-AU)

설계 노트

Place a 10 uF bulk capacitor plus 100 nF and 1 nF ceramic decoupling capacitors within 5 mm of each VDD pin (TQFP-100 has multiple VDD pairs). The internal DC-DC regulator requires an external inductor on VSW; keep the inductor loop area small (under 0.5 cm^2) to limit EMI. A VBAT pin powers the RTC backup domain and must be tied to a coin cell or main VDD through a 0 ohm jumper if RTC is unused.

Reserve the SWD/SWC pins (typically PA30/PA31 on TQFP-100) for in-circuit programming and dedicate a 10-pin Cortex Debug connector footprint to enable field firmware updates. Avoid routing high-speed signals (USB DP/DM, CAN-FD) across the chip footprint; route on the bottom layer with a continuous ground reference plane to maintain 90 ohm differential impedance.

Estimated: at 120 MHz CPU speed with full peripheral activity the SAM E54 dissipates roughly 80-100 mW; this is well within the TQFP-100 thermal envelope (theta_JA approximately 50 C/W on a 2-layer JEDEC test board). For automotive under-hood placement above +85C ambient, use a 4-layer PCB with a dedicated ground plane to keep junction rise below 10 C.

Do not assume the AUT suffix means extended temperature (-40C to +125C); for under-hood applications above +85C select a part specifically graded to AEC-Q100 Grade 0/1. Also verify that BOOTPROT fuse settings are locked before shipping production units - unlocked fuses allow external flash read-back via SWD. Enable ECC on Flash and SRAM to take advantage of the silicon's built-in single-bit correction.

규정 준수 정보

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

AUT suffix indicates AEC-Q100 automotive qualification per Microchip datasheet. RoHS and REACH compliance stated on Microchip product page.

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

관련 검색

ATSAME54N19A-AUT ATSAME54N19A-AUT datasheet Microchip ATSAME54N19A-AUT Cortex-M4F automotive microcontroller 100 TQFP TQFP-100 CAN-FD USB MCU 120 MHz ATSAME54N19A-AUT automotive ECU ATSAME54N19A-AUT vs ATSAME54N19A-AU ATSAME54N19A-AUT drop-in replacement ATSAME54N19A-AUT buy price SAM E54 datasheet PDF ATSAME54N19A-AUT pinout TQFP-100 AEC-Q100 Cortex-M4 MCU 100-pin

관련 부품 & 용어

Microchip Technology ATSAME54N19A-AUT ATSAME54N19A-AU ATSAME54N19A-AU-EFP ATSAME54N19A-AF ATSAME53N20A-AU ATSAME53N19A-AU ATSAME51N19A-AU ARM Cortex-M4F FPU TQFP-100 Microchip SAM E54 AEC-Q100 RoHS REACH USB 2.0 Full-Speed CAN-FD SERCOM Flash with ECC SRAM with ECC dual-panel Flash automotive body controller industrial control panel
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