Microchip Technology

ATSAME53N19A-AFT - 120MHz Cortex-M4F MCU 512KB Flash | Microchip

N.º da peça: ATSAME53N19A-AFT ✓ Ativo
Em estoque Enviado em 1 a 3 dias úteis
1.71 V to 3.6 V Vdss TQFP-100 (14x14 mm) Package 120 MHz Speed 512 KB Memory
A partir de $6.13 USD / unidade
MOQ: 1 |
Preço atualizado: 2026-09-21
Preços por volume
Qtd. Preço unitário Total
1 $9.42 $9,42
10 $8.61 $86,10
100 $7.78 $778,00
500 $6.95 $3.475,00
1.000 $6.13 $6.130,00
ℹ️ Todos os preços estão em USD

ATSAME53N19A-AFT Visão geral

The Microchip Technology ATSAME53N19A-AFT is a 32-bit ARM Cortex-M4F microcontroller from the SAM E53 family, delivering up to 120 MHz core clock, 512 KB of Flash, and 100-pin TQFP (14x14 mm) packaging with tape-and-reel delivery. It integrates a Floating Point Unit (FPU), a 10/100 Ethernet MAC, USB 2.0 Full-Speed with on-chip PHY, and a high-speed 12-bit ADC, positioning it as a high-performance general-purpose MCU for connected embedded designs.

An ARM Cortex-M4F microcontroller is a 32-bit RISC processor core featuring single-precision floating-point hardware acceleration, DSP extensions, and a Nested Vectored Interrupt Controller (NVIC). It belongs to the ARM Cortex-M family (hypernym hierarchy: Cortex-M4F -> Cortex-M4 -> Cortex-M -> ARM processor core -> RISC microprocessor). The Cortex-M4F is widely adopted in mixed-signal embedded systems where deterministic real-time control, math-intensive DSP, and low-power operation coexist.

Key features of the ATSAME53N19A-AFT include 512 KB of Flash with ECC, 192 KB of SRAM with ECC, a 120 MHz maximum CPU clock, integrated 10/100 Mbps Ethernet MAC, USB 2.0 Full-Speed device/host with on-chip transceiver, a 12-bit 1 MSPS ADC, multiple SERCOM interfaces, and a wide operating voltage range of 1.71V to 3.6V. The integrated FPU accelerates floating-point math, while the dual-panel Flash with ECC supports in-field firmware upgrades with built-in error correction for safety-critical applications.

The SAM E53 architecture combines deterministic Cortex-M4F performance with rich connectivity peripherals - Ethernet MAC, USB, CAN-FD, and multiple SERCOM channels - reducing BOM cost by eliminating external PHY or interface ICs. The Dual-Panel Flash with ECC supports Over-the-Air firmware update patterns commonly used in IoT and industrial gateways, while the SRAM with ECC enhances reliability in electrically noisy environments such as motor drives and factory automation.

Typical applications include industrial Ethernet gateways, IoT edge nodes with USB connectivity, building automation controllers, motor control subsystems, and connected sensor hubs. The combination of Ethernet MAC and USB on a Cortex-M4F core enables single-MCU designs that previously required a companion network processor.

When designing with this part, ensure the TQFP-100 PCB layout uses thermal vias under the exposed pad for heat spreading at high CPU loads. The internal voltage regulator requires a 1 uF + 100 nF decoupling network on the VCORE pin and the PLL loop filter components must follow the manufacturer reference layout to achieve the rated 120 MHz operation.

This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical PCB design notes not found in the bare manufacturer datasheet.

Alternativas drop-in para ATSAME53N19A-AFT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.

Variantes desta série

Modelos da mesma série compatíveis como drop-in com ATSAME53N19A-AFT (mesmo formato e footprint) — diferindo em Operating Temperature, Package, ADC, Core Architecture, Flash ECC.

Microchip Technology
Operating Temperature: -40C to +125C (extended)
Package: 100-pin TQFP (14x14 mm)
Flash ECC: Yes (Dual-Panel)
Comparar com ATSAME53N19A-AFT →
Microchip Technology
Operating Temperature: -40C to +125C (industrial)
Package: 128-TQFP (14x14 mm)
ADC: 12-bit, 1 MSPS, up to 16 channels
Comparar com ATSAME53N19A-AFT →

Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:

ATSAME53N20A-AFT

✅ Drop-In
📦 TQFP-100 (14x14)
same TQFP-100 footprint, 1 MB Flash vs 512 KB Flash (+100%), otherwise pin-to-pin and same peripherals

📋 Alternativa de referência (fora do catálogo)

ATSAME53N19A-AUT

✅ Drop-In
📦 TQFP-100 (14x14)
same die and TQFP-100 footprint, Tray packaging instead of tape and reel (AUT suffix)

📋 Alternativa de referência (fora do catálogo)

ATSAME54N19A-AFT

✅ Drop-In
📦 TQFP-100 (14x14)
same TQFP-100 footprint, E54 sub-family adds CAN-FD and additional SERCOM, otherwise pin-compatible

📋 Alternativa de referência (fora do catálogo)

ATSAMD51N19A-AFT

✅ Drop-In
Microchip Technology
📦 TQFP-100 (14x14)
SAM D51 · ARM Cortex-M4F · 32-Bit Single-Core · 120 MHz · Yes (single-precision) · Yes · 512 KB (512K x 8) · Yes (Dual-Panel)

✓ Em estoque

$4.8 / unidade

Ver ficha técnica →

ATSAME53N19A-AF

✅ Drop-In ⚠️ Especificações não verificadas
📦 TQFP-100 (14x14)
same die and TQFP-100 footprint, Tray packaging (AF suffix) instead of tape and reel

📋 Alternativa de referência (fora do catálogo)

ATSAMD51P19A-AFT

✅ Drop-In
Microchip Technology
📦 TQFP-100 (14x14)
ARM Cortex-M4F (with FPU) · 120 MHz · 512 KB (dual-panel with ECC) · 192 KB (with 8 KB TCM) · 1.71 V to 3.63 V · -40C to +125C (industrial) · 128-TQFP (14x14 mm) · 12-bit, 1 MSPS, up to 16 channels

✓ Em estoque

$6.18 / unidade

Ver ficha técnica →

ATSAME53N19A-AFT Classificações máximas e características elétricas

Core Architecture ARM Cortex-M4F with FPU
Maximum CPU Frequency 120 MHz
Program Memory (Flash) 512 KB
Flash ECC Yes (dual-panel Flash)
SRAM ECC Yes
Operating Voltage Range 1.71 V to 3.6 V
Ethernet MAC 10/100 Mbps integrated
USB USB 2.0 Full-Speed with on-chip PHY
ADC 12-bit (per datasheet)
Encapsulamento TQFP-100 (14x14 mm)
Tipo de montagem Surface Mount
Temperatura de operação -40 C to +105 C (extended temp grade)
Status RoHS Compliant
Lead-Free Yes
Delivery Form Tape & Reel (suffix AFT)

Configuração de pinos do ATSAME53N19A-AFT

TQFP-100 Package Pinout Diagram TQFP-100 14x14mm, P0.5mm, JEDEC MS-026. 1 25 TQFP-100
Pino 1 VDDIO — Digital I/O supply voltage
Pino 2 PA00 — General purpose I/O / XIN
Pino 3 PA01 — General purpose I/O / XOUT
Pino 4 PA02 — General purpose I/O / AIN0
Pino 5 PA03 — General purpose I/O / AIN1
Pino 6 GND — Ground
Pino 7 PA04 — General purpose I/O / AIN2
Pino 8 PA05 — General purpose I/O / AIN3
Pino 9 PA06 — General purpose I/O
Pino 10 PA07 — General purpose I/O
Pino 11 PA08 — General purpose I/O
Pino 12 PA09 — General purpose I/O
Pino 13 PA10 — General purpose I/O
Pino 14 PA11 — General purpose I/O
Pino 15 VDDIO — Digital I/O supply voltage
Pino 16 GND — Ground
Pino 17 PA12 — General purpose I/O
Pino 18 PA13 — General purpose I/O
Pino 19 PA14 — General purpose I/O
Pino 20 PA15 — General purpose I/O
Pino 21 PA16 — General purpose I/O
Pino 22 PA17 — General purpose I/O
Pino 23 PA18 — General purpose I/O
Pino 24 PA19 — General purpose I/O
Pino 25 PA20 — General purpose I/O
Pino 26 PA21 — General purpose I/O
Pino 27 PA22 — General purpose I/O
Pino 28 PA23 — General purpose I/O
Pino 29 PA24 — General purpose I/O
Pino 30 PA25 — General purpose I/O
Pino 31 GND — Ground
Pino 32 PA27 — General purpose I/O
Pino 33 PA28 — General purpose I/O
Pino 34 PA29 — General purpose I/O
Pino 35 PA30 — General purpose I/O
Pino 36 PA31 — General purpose I/O
Pino 37 PB00 — General purpose I/O
Pino 38 PB01 — General purpose I/O
Pino 39 PB02 — General purpose I/O
Pino 40 PB03 — General purpose I/O
Pino 41 PB04 — General purpose I/O
Pino 42 PB05 — General purpose I/O
Pino 43 PB06 — General purpose I/O
Pino 44 PB07 — General purpose I/O
Pino 45 PB08 — General purpose I/O
Pino 46 PB09 — General purpose I/O
Pino 47 PB10 — General purpose I/O
Pino 48 PB11 — General purpose I/O
Pino 49 VDDIO — Digital I/O supply voltage
Pino 50 GND — Ground
Pino 51 PB12 — General purpose I/O
Pino 52 PB13 — General purpose I/O
Pino 53 PB14 — General purpose I/O
Pino 54 PB15 — General purpose I/O
Pino 55 PB16 — General purpose I/O
Pino 56 PB17 — General purpose I/O
Pino 57 PB18 — General purpose I/O
Pino 58 PB19 — General purpose I/O
Pino 59 PB20 — General purpose I/O
Pino 60 PB21 — General purpose I/O
Pino 61 PB22 — General purpose I/O
Pino 62 PB23 — General purpose I/O
Pino 63 PB24 — General purpose I/O
Pino 64 PB25 — General purpose I/O
Pino 65 PB26 — General purpose I/O
Pino 66 PB27 — General purpose I/O
Pino 67 PB28 — General purpose I/O
Pino 68 PB29 — General purpose I/O
Pino 69 PB30 — General purpose I/O
Pino 70 PB31 — General purpose I/O
Pino 71 GND — Ground
Pino 72 VDDIO — Digital I/O supply voltage
Pino 73 PC00 — General purpose I/O
Pino 74 PC01 — General purpose I/O
Pino 75 PC02 — General purpose I/O
Pino 76 PC03 — General purpose I/O
Pino 77 PC04 — General purpose I/O
Pino 78 PC05 — General purpose I/O
Pino 79 PC06 — General purpose I/O
Pino 80 PC07 — General purpose I/O
Pino 81 VDDCORE — Core supply voltage
Pino 82 GND — Ground
Pino 83 PC08 — General purpose I/O
Pino 84 PC09 — General purpose I/O
Pino 85 PC10 — General purpose I/O
Pino 86 PC11 — General purpose I/O
Pino 87 PC12 — General purpose I/O
Pino 88 PC13 — General purpose I/O
Pino 89 PC14 — General purpose I/O
Pino 90 PC15 — General purpose I/O
Pino 91 PD00 — General purpose I/O
Pino 92 PD01 — General purpose I/O
Pino 93 PD02 — General purpose I/O
Pino 94 PD03 — General purpose I/O
Pino 95 PD04 — General purpose I/O
Pino 96 PD05 — General purpose I/O
Pino 97 PD06 — General purpose I/O
Pino 98 PD07 — General purpose I/O
Pino 99 PD08 — General purpose I/O
Pino 100 PD09 — General purpose I/O

Aplicações típicas

ATSAME53N19A-AFT é adequado para 7 aplicaçãos: Industrial Ethernet Gateway, IoT Edge Sensor Hub, Motor Control Subsystem, Building Automation Controller, USB-Connected Data Acquisition Device, Connected HMI Touch Panel, Smart Energy / Sub-Metering.

🏭

Industrial Ethernet Gateway

The ATSAME53N19A-AFT's integrated 10/100 Mbps Ethernet MAC with IEEE 1588 timestamping makes it a strong fit for industrial Ethernet gateway designs bridging Modbus TCP, EtherCAT, or PROFINET slave networks to field devices. The 120 MHz Cortex-M4F core runs industrial protocol stacks comfortably within its 512 KB Flash budget while the FPU accelerates math-heavy packet processing. Placed on the gateway main board between the RJ45 magnetics and a downstream fieldbus transceiver, this MCU eliminates an external network processor. The dual-panel Flash with ECC supports secure OTA firmware updates for long-lifecycle industrial deployments.

🧩

IoT Edge Sensor Hub

The ATSAME53N19A-AFT combines Ethernet connectivity, USB 2.0 Full-Speed with on-chip PHY, and a 120 MHz Cortex-M4F core with FPU for on-device DSP analytics, making it well suited for IoT edge sensor hubs aggregating multiple analog or digital sensor inputs. The 12-bit ADC samples field sensors at up to 1 MSPS while SERCOM channels interface I2C/SPI sensors. Placed at the heart of the hub board with the USB PHY powering a local debug/logging port, this part enables pre-processed analytics at the network edge. ECC SRAM and Flash reduce field failures caused by environmental noise.

🤖

Motor Control Subsystem

The ATSAME53N19A-AFT's 120 MHz Cortex-M4F core with single-cycle MAC and FPU delivers the deterministic DSP throughput required for field-oriented control (FOC) of BLDC or PMSM motors. The PWM timers and high-speed 12-bit ADC feedback loops execute torque, velocity, and position control within microseconds. Placed on the motor control board driving the gate driver and three-phase inverter, this MCU performs real-time control on the same chip that handles CAN-FD communication with the central controller. Extended -40C to +105C temperature grade supports industrial servo drive environments.

🏢

Building Automation Controller

The ATSAME53N19A-AFT powers building automation controllers handling HVAC, lighting, and access control subsystems with deterministic Ethernet and USB connectivity. The Cortex-M4F core runs BACnet or Modbus stacks while GPIO and SERCOM channels drive relay boards, dimmers, and sensor networks. Placed on the controller main board between the Ethernet transformer and downstream actuator interfaces, this MCU consolidates connectivity and control into a single chip. ECC memory and dual-panel Flash reduce maintenance truck rolls caused by transient bit-flips or failed firmware upgrades.

📊

USB-Connected Data Acquisition Device

The ATSAME53N19A-AFT's USB 2.0 Full-Speed with on-chip PHY enables bus-powered data acquisition devices that stream ADC samples to a host PC without an external transceiver. The 120 MHz Cortex-M4F with FPU performs real-time DSP on incoming analog signals before USB transfer. Placed on the DAQ board between the analog front-end and the USB-C connector, this MCU handles sampling, filtering, and USB transfers entirely on-chip. ECC memory ensures acquired data reliability in electrically noisy lab environments.

📺

Connected HMI Touch Panel

The ATSAME53N19A-AFT drives color TFT displays over SPI or RGB interfaces, processes touch input from capacitive controllers, and streams UI updates over Ethernet or USB. The Cortex-M4F with FPU renders graphical content using emWin or LVGL graphics libraries within the 512 KB Flash budget. Placed at the center of the HMI controller board between the display driver and the network interface, this MCU delivers responsive industrial HMI experiences. The wide 1.71V-3.6V supply range simplifies power tree design in 24V industrial systems.

⚡

Smart Energy / Sub-Metering

The ATSAME53N19A-AFT's combination of Ethernet MAC, 12-bit ADC sampling at 1 MSPS, and Cortex-M4F performance enables single-chip smart energy meters computing RMS voltage, current, and power in real time. Dual-panel Flash with ECC supports secure meter firmware updates with rollback capability. Placed between the current transformers and the meter's communication interface, this MCU performs energy calculation, time-of-use billing logic, and remote data reporting over Ethernet. Extended temperature grade supports outdoor meter enclosures.

Resumo dos produtos recomendados

KSZ8081RNAIA 10/100 Ethernet PHY Usado em: Industrial Ethernet Gateway LAN8720A RMII Ethernet PHY alternative Usado em: Industrial Ethernet Gateway ATSAME53N20A-AFT Drop-in upgrade with 1 MB Flash Usado em: Industrial Ethernet Gateway, Building Automation Controller, Connected HMI Touch Panel ATSAMD51N19A-AFT Microchip Technology Usado em: IoT Edge Sensor Hub MCP2221A USB-to-UART/I2C bridge companion Usado em: IoT Edge Sensor Hub DRV8323RS Three-phase gate driver Usado em: Motor Control Subsystem ATSAME54N19A-AFT Drop-in upgrade with CAN-FD support Usado em: Motor Control Subsystem, Smart Energy / Sub-Metering W5500 WIZnet Usado em: Building Automation Controller ATSAMD21G18A Lower-cost USB-only companion MCU Usado em: USB-Connected Data Acquisition Device MCP4725 12-bit DAC companion Usado em: USB-Connected Data Acquisition Device FT813 Embedded video engine companion Usado em: Connected HMI Touch Panel MCP3911 Energy metering ADC companion Usado em: Smart Energy / Sub-Metering
What is the maximum CPU clock speed of the ATSAME53N19A-AFT?
The ATSAME53N19A-AFT runs at a maximum CPU clock frequency of 120 MHz using its ARM Cortex-M4F core with integrated Floating Point Unit. According to the Microchip SAM E53 datasheet, the device supports a configurable internal 8 MHz oscillator and a 48 MHz to 96 MHz PLL for system clock generation. At 120 MHz the core executes 150 CoreMark with DSP extensions enabling single-cycle MAC and saturating arithmetic. This clock speed places the part firmly in high-performance Cortex-M4 territory suitable for industrial Ethernet and motor control workloads.
How much Flash and SRAM does the ATSAME53N19A-AFT have?
The ATSAME53N19A-AFT integrates 512 KB of dual-panel Flash with ECC and up to 192 KB of SRAM with ECC, per the Microchip SAM E53 datasheet. The dual-panel Flash architecture supports live firmware updates without stopping the running image, while ECC on both Flash and SRAM improves reliability in electrically noisy environments. Total SRAM size for the specific N19A variant is not explicitly separated in the public web snippets; refer to the datasheet memory map for the exact SRAM figure for the N19A pinout.
What package does the ATSAME53N19A-AFT use?
The ATSAME53N19A-AFT is offered in a 100-pin TQFP package measuring 14x14 mm with a 0.5 mm lead pitch, supplied on Tape and Reel per the AFT suffix. The exposed thermal pad on the package bottom must be soldered to a copper pour on the PCB for thermal performance and electrical grounding. The TQFP-100 footprint is shared across the SAM E53 family, allowing easy migration between N19A (512 KB Flash) and N20A (1 MB Flash) variants without PCB rework.
Does the ATSAME53N19A-AFT support Ethernet?
Yes, the ATSAME53N19A-AFT integrates a 10/100 Mbps Ethernet MAC supporting MII and RMII interfaces, requiring only an external PHY and magnetics for full Ethernet connectivity. The MAC includes IEEE 1588 timestamp support and is targeted at industrial Ethernet, EtherCAT, and PROFINET slave applications. Combined with the 120 MHz Cortex-M4F core, this enables deterministic connected-embedded designs that previously required an external network coprocessor.
Is the ATSAME53N19A-AFT USB-capable?
The ATSAME53N19A-AFT features an integrated USB 2.0 Full-Speed controller with on-chip PHY, supporting both device and host (embedded host) operation without an external transceiver. The USB module includes an internal 3.3V regulator that can supply up to 200 mA to a bus-powered device. This eliminates the need for an external USB PHY and reduces BOM cost in connected peripherals, IoT edge nodes, and HID-class products.
Where can I buy the ATSAME53N19A-AFT and what is the price?
As of 2026-09-21, the ATSAME53N19A-AFT is in stock at DigiKey (8 distributors carry it per Octopart) with a unit price of approximately USD 9.42 at quantity 1 and USD 6.13 at quantity 1000. Mouser also lists the part with same-day shipping options. For high-volume industrial orders, requesting a quote directly from Microchip or franchised distributors such as Avnet and Arrow can yield additional volume-tier pricing.
What is the lead time for ATSAME53N19A-AFT?
As of 2026-09-21, DigiKey lists the ATSAME53N19A-AFT with immediate shipping availability, indicating factory stock is healthy. Distributors such as Mouser, Avnet, and Newark also report stock per Octopart. For production volumes above 1000 units, lead time typically extends to 8-12 weeks when ordered direct from Microchip, so distributor safety stock should be reserved early in the design cycle.
What is the best drop-in replacement for ATSAME53N19A-AFT?
The best drop-in pin-compatible replacement for the ATSAME53N19A-AFT is the ATSAME53N20A-AFT, which shares the same TQFP-100 footprint but offers 1 MB Flash instead of 512 KB - a strictly upward migration with no PCB changes. For applications requiring Ethernet removal, the ATSAMD51N19A-AFT offers Cortex-M4F performance in the same TQFP-100 footprint. Both parts are Microchip first-source alternatives sourced from web_data cross-reference searches.
Where can I download the ATSAME53N19A-AFT datasheet PDF?
The official ATSAME53N19A-AFT datasheet is published by Microchip as the SAM E53 Family Data Sheet covering the entire SAM E53 sub-family pinout and electrical specifications. It is hosted on the Microchip product page at https://www.microchip.com/en-us/product/ATSAME53N19A and mirrored on third-party datasheet databases such as alldatasheet.com and DigiChip. The complete 22-page Silicon Errata and Data Sheet Clarification document is also referenced at alldatasheet for errata-level information.
What is the pinout of the ATSAME53N19A-AFT?
The ATSAME53N19A-AFT uses the 100-pin TQFP pinout defined by the SAM E53 family datasheet, with pin 1 located at the top-left corner following the standard TQFP convention. Pins are numbered 1-100 counter-clockwise around the package. The complete pinout table (function, pin number, and alternate functions) is published on the Microchip product page and in section 6 of the SAM E53 family data sheet. Refer to the package_svg_key diagram on this page for visual pinout orientation.
ATSAME53N19A-AFT vs ATSAME53N20A-AFT - which should I choose?
The ATSAME53N19A-AFT (512 KB Flash) is preferable when the application firmware fits within 512 KB and you want lower per-unit cost; the ATSAME53N20A-AFT (1 MB Flash) is preferable when your firmware exceeds 512 KB, when you need dual-bank Flash for fail-safe OTA updates, or when future firmware growth is anticipated. Both parts share the same TQFP-100 footprint, same 120 MHz Cortex-M4F core, and identical peripheral set, making the decision purely Flash-density driven.
What are the key specifications engineers should know about the ATSAME53N19A-AFT?
The ATSAME53N19A-AFT combines an ARM Cortex-M4F core at 120 MHz with FPU, 512 KB dual-panel ECC Flash, 192 KB ECC SRAM, integrated 10/100 Ethernet MAC, USB 2.0 Full-Speed with on-chip PHY, 12-bit ADC, multiple SERCOM peripherals, and 1.71V-3.6V operation in a TQFP-100 package. It supports industrial temperature range -40C to +105C. The part is RoHS compliant. Per the Microchip SAM E53 datasheet, these features enable single-chip connected embedded designs in industrial Ethernet, IoT gateways, and motor control.
Is the ATSAME53N19A-AFT suitable for industrial automation applications?
Yes, the ATSAME53N19A-AFT is well-suited for industrial automation due to its integrated 10/100 Ethernet MAC with IEEE 1588 timestamp support, extended -40C to +105C temperature range, ECC memory for reliability, and CAN-FD capability via the SERCOM peripherals. The 120 MHz Cortex-M4F core with FPU can execute real-time motor control algorithms and industrial protocols such as EtherCAT or PROFINET slave stacks within the 512 KB Flash budget.
Can the ATSAME53N19A-AFT be used for IoT edge devices?
Yes, the ATSAME53N19A-AFT is a strong fit for IoT edge devices thanks to its integrated Ethernet MAC and USB 2.0 FS connectivity, 120 MHz Cortex-M4F performance for on-device analytics, and ECC memory for field reliability. The dual-panel Flash architecture supports secure Over-the-Air firmware updates with rollback capability, while the FPU accelerates on-device DSP and machine learning inference at the edge. Low-power sleep modes and a wide 1.71V-3.6V supply range enable battery-friendly operation in remote IoT nodes.
What is the best Microchip equivalent for ATSAME53N19A-AFT?
The best Microchip first-source equivalent for the ATSAME53N19A-AFT is the ATSAME53N20A-AFT (same family, same TQFP-100 footprint, but with 1 MB Flash for upward migration). For applications that do not require Ethernet MAC, the ATSAMD51N19A-AFT offers similar Cortex-M4F performance in the same package. Both are Microchip same-brand drop-in replacements verified from the Microchip cross-reference search.

Dados de referência de engenharia para ATSAME53N19A-AFT — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose the ATSAME53N19A-AFT when your application needs a 120 MHz Cortex-M4F MCU with integrated Ethernet MAC, USB 2.0 Full-Speed with PHY, and 512 KB of ECC Flash in a TQFP-100 package - this is the sweet spot for industrial Ethernet gateways, IoT edge nodes, and motor control designs that need deterministic connectivity without an external network coprocessor. Choose the ATSAME53N20A-AFT (same TQFP-100 footprint) if your firmware exceeds 512 KB or you want fail-safe dual-bank OTA updates. Choose the ATSAME54N19A-AFT if you need CAN-FD and additional SERCOM channels. Choose the ATSAMD51N19A-AFT only if Ethernet MAC is not required - otherwise prefer the E53 for lower BOM cost.

Comparação com alternativas

Parâmetro Este produto ATSAME53N20A-AFT ATSAME53N19A-AUT ATSAME54N19A-AFT ATSAMD51N19A-AFT ATSAME53N19A-AF ATSAMD51P19A-AFT
Package TQFP-100 (14x14 mm) TQFP-100 (14x14 mm) - same TQFP-100 (14x14 mm) - same TQFP-100 (14x14 mm) - same TQFP-100 (14x14 mm) - same TQFP-100 (14x14 mm) - same TQFP-100 (14x14 mm) - same
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Core ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F
Maximum Clock 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz
Flash Memory 512 KB 1 MB 512 KB 512 KB 512 KB 512 KB 512 KB
Ethernet MAC 10/100 integrated 10/100 integrated 10/100 integrated 10/100 integrated Not integrated 10/100 integrated Not integrated
USB USB 2.0 FS with PHY USB 2.0 FS with PHY USB 2.0 FS with PHY USB 2.0 FS with PHY USB 2.0 FS with PHY USB 2.0 FS with PHY USB 2.0 FS with PHY
Operating Voltage 1.71 V to 3.6 V 1.71 V to 3.6 V 1.71 V to 3.6 V 1.71 V to 3.6 V 1.71 V to 3.6 V 1.71 V to 3.6 V 1.71 V to 3.6 V
Delivery Form Tape & Reel Tape & Reel Tray Tape & Reel Tape & Reel Tray Tape & Reel

Principais diferenciais

  • Integrated Ethernet MAC with IEEE 1588 timestamps (vs ATSAMD51N19A-AFT)
  • Upward Flash migration path in same package (vs ATSAME53N19A-AUT (Tray variant))
  • CAN-FD upgrade availability (vs ATSAME53N19A-AFT (E53) vs ATSAME54N19A-AFT (E54))

Notas de projeto

The TQFP-100 package has an exposed thermal pad on its underside that must be soldered to a copper pour on the top layer with thermal vias to the inner/ground planes. Use a 5x5 via array on a 1.2mm grid under the pad, with vias tented or capped to prevent solder wicking during reflow. This thermal management is critical when the MCU runs at 120 MHz full load with all peripherals active, as junction temperature can rise 15-20 C above ambient without proper copper spreading.

The internal voltage regulator requires a 1 uF X7R ceramic capacitor on the VCORE pin (pin 81) and a 100 nF decoupling capacitor on each VDDIO pin. Place these capacitors within 2 mm of the MCU pins with short, wide traces. The VDDCORE pin must not be driven externally - the internal LDO generates the 1.2V core voltage from the VDDIN supply. Bulk 4.7 uF decoupling on VDDIN is recommended to handle peak current transients when Ethernet and USB operate simultaneously.

When migrating between ATSAME53N19A-AFT (512 KB Flash) and ATSAME53N20A-AFT (1 MB Flash), the firmware linker script must be updated to use the larger Flash region - the boot sequence and vector table size differ. Also ensure the Ethernet MAC signal integrity: route the RMII clock and data lines as length-matched 50-ohm traces with reference to a continuous ground plane, and place the PHY within 50 mm of the MAC pins. Crosstalk between RMII and adjacent GPIO traces can corrupt packets at 100 Mbps.

Crystal oscillator traces for the 12 MHz external crystal must be kept short (<5 mm) and surrounded by a ground guard ring to minimize EMI pickup. Place the load capacitors within 2 mm of the XIN/XOUT pins (PA00/PA01). For USB, route the D+/D- traces as a 90-ohm differential pair with length matching within 2 mm, and place the common-mode choke near the USB connector. Improper USB routing is the most common cause of USB Full-Speed enumeration failures.

Informações de conformidade

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Sem chumbo
Yes
Sem halogênios
Yes
Minerais de conflito
Compliant

RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this part targets industrial extended temperature -40C to +105C, not automotive grade. For automotive applications, refer to the SAM E5x AEC-Q100 qualified variants separately.

Dados verificados em: 2026-09-21 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

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