Microcontroladores

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ATSAME51G18A-MFT - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip
ATSAME51G18A-MFT

ATSAME51G18A-MFT - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip

The Microchip ATSAME51G18A-MFT is a 32-bit ARM Cortex-M4F microcontroller with FPU running up to 120 MHz, integrating 256 KB of dual-panel Flash with ECC and 128 KB of SRAM in a 48-pin VQFN (7x7 mm) package. The device belongs to the SAM E51 automotive-grade family and supports USB 2.0 Full-Speed, CAN, SERCOM, and a 12-bit ADC, making it a compact, AEC-Q100-qualified MCU for industrial and automotive embedded designs. What is a Cortex-M4F microcontroller? An ARM Cortex-M4F MCU is a 32-bit RISC processor core with single-precision floating-point unit and DSP extensions, designed for deterministic real-time control with low power consumption. Within the broader taxonomy it sits as MCU -> microcontroller -> embedded processor -> semiconductor, and the SAM E51 line specifically targets motor control, IoT edge nodes, and automotive body applications where high CPU throughput, hardware crypto, and certified AEC-Q100 reliability are required. Key features of the ATSAME51G18A-MFT include 120 MHz core with FPU and DSP instructions, 256 KB Flash with Error Correction Code, 128 KB SRAM, a 12-bit 1 MSPS ADC with up to 16 channels, multiple SERCOM interfaces configurable as USART/SPI/I2C, Full-Speed USB 2.0 device/host, and CAN-FD support. The integrated Event System, configurable Custom Logic (CCL), and hardware AES accelerator reduce external component count and software overhead. Architecturally, the SAM E51 uses a Cortex-M4F core with a 4-level memory pipeline, dual-panel Flash supporting live updates without downtime, and a low-power SleepWalking peripheral controller that wakes selected peripherals autonomously. This combination delivers deterministic interrupt latency and minimal active-mode current, suitable for sensor-fusion and closed-loop motor-control loops running at multi-kHz rates. Typical applications include industrial motor control (BLDC and stepper drives), automotive body and lighting controllers, IoT edge sensor nodes with USB or CAN connectivity, building automation HVAC controllers, and portable medical instrumentation. The combination of AEC-Q100 grade 1 qualification, integrated USB and CAN, and a small 7x7 mm QFN footprint makes the device especially attractive when PCB real estate is constrained. When designing with this MCU, allocate the 48-QFN exposed pad to a continuous ground copper pour of at least 1 square inch for thermal dissipation and signal return. Decouple VDDIN and VDDANA separately with 100 nF X7R capacitors placed within 2 mm of the respective pins, and reserve a 32.768 kHz crystal footprint for accurate RTC operation. For automotive deployments, follow the hardware checklist in Microchip application note AN3298 to ensure EMC/ESD compliance.

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ATSAME51G18A-MU - 120MHz Cortex-M4F MCU 256KB Flash | Microchip
ATSAME51G18A-MU

ATSAME51G18A-MU - 120MHz Cortex-M4F MCU 256KB Flash | Microchip

The Microchip ATSAME51G18A-MU is a 32-bit ARM Cortex-M4F microcontroller with FPU running up to 120 MHz, integrating 256 KB of dual-panel Flash with ECC and 128 KB of SRAM, housed in a 48-pin QFN (7x7 mm) package. The -MU suffix denotes the industrial-grade 85°C rating in a tray packaging format. The SAM E51 series targets high-performance connected and secure embedded designs with on-board USB 2.0 Full-Speed, CAN-FD, and a rich set of SERCOM peripherals. A microcontroller (microcontroller unit, MCU) is a single-chip computer that integrates a CPU core, program memory (typically Flash), data memory (SRAM), and a configurable set of peripherals on one silicon die. Within the semiconductor taxonomy, an MCU sits inside the embedded processor family, alongside microprocessors (MPUs), DSPs, and FPGAs; the Cortex-M4F class specifically targets deterministic real-time control with hardware single-precision floating-point acceleration, distinguishing it from Cortex-M0+ entry-level parts and Cortex-M7 high-end parts. ARM Cortex-M4F MCUs from Microchip are organized into the SAME5x, SAMD5x, SAMC, and SAMx series families, each optimized for different application-class workloads. Key differentiating features of the ATSAME51G18A include an integrated FPU for floating-point DSP workloads, deterministic 120 MHz operation, dual-panel Flash with ECC for safety-critical firmware reliability, and up to 256 KB of ECC-protected SRAM. TrustZone-M is not present on this variant, and the peripheral set covers 6 SERCOM channels (each configurable as UART/SPI/I2C), USB 2.0 FS, CAN-FD, and a 12-bit ADC with up to 16 channels. The 48-pin QFN-48 (7x7 mm) footprint is shared across the SAMD/E5x G-series, which is convenient for board layout reuse. Architecturally, the SAM E51 uses a 3-stage pipeline Cortex-M4F core with single-cycle MAC, hardware FPU, and a low-latency interrupt controller. The dual-panel Flash architecture allows simultaneous read-while-write, enabling live firmware updates without halting execution. Integrated hardware accelerators include the Event System, Frequency Meter, and CRC engine, freeing the core from housekeeping tasks. Power management offers multiple SleepWalking-aware Sleep modes, an integrated 48 MHz DFLL, and a 32.768 kHz RTC oscillator, enabling low standby current while keeping wake-up latency short. Typical applications include industrial IoT sensor hubs, USB-CAN bridge gateways, factory automation motor controllers, smart metering with cryptographic signing, HMI front panels with capacitive touch, and drone flight controllers. Designers commonly pair the ATSAME51G18A with external crypto accelerators or IEEE 802.15.4 transceivers for secure mesh deployments. When designing, reserve the QSPI peripheral for high-throughput external Flash if firmware exceeds the 256 KB on-die limit. Use the on-package exposed pad as a thermal dissipation path and stitch the GND returns carefully to maintain signal integrity on USB 2.0 differential pairs. This page synthesizes distributor pricing, parametric alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAME51G18A-MU-EFP - SAM E51 120MHz Cortex-M4F MCU | Microchip
ATSAME51G18A-MU-EFP

ATSAME51G18A-MU-EFP - SAM E51 120MHz Cortex-M4F MCU | Microchip

The Microchip Technology ATSAME51G18A-MU-EFP is a 32-bit ARM Cortex-M4F microcontroller from the SAM E51 high-performance series, operating up to 120 MHz with 256 KB of Flash and 256 KB of SRAM, housed in a 48-pin VQFN (7x7 mm) package with exposed pad. It integrates a single-precision Floating Point Unit (FPU), supports up to 1 MB Dual Panel Flash with ECC, and includes USB, CAN, and SERCOM peripherals for connected industrial and IoT designs. The device operates from 1.71V to 3.63V across an industrial -40C to +125C temperature range. A 32-bit ARM Cortex-M4 microcontroller is a RISC-based processor core that combines high-performance digital signal processing (DSP) instructions with a single-precision floating point unit, enabling deterministic real-time control in embedded systems. Within the taxonomy, it sits at microcontroller -> embedded processor -> semiconductor -> integrated circuit. The SAM E51 series adds Microchip's proprietary peripheral set, dual-bank Flash for over-the-air (OTA) firmware updates, and hardware cryptography for secure connected applications. Key differentiating features of the ATSAME51G18A-MU-EFP include 120 MHz CPU with FPU and DSP extensions, 256 KB SRAM with ECC, a 12-bit 1 MSPS ADC, multiple SERCOM modules configurable as UART/SPI/I2C, USB 2.0 Full-Speed device/host, CAN-FD, and the SAM E51 Event System for hardware-triggered peripheral interconnects without CPU intervention. The integrated FPU simplifies control-loop math for motor control and power conversion algorithms. Architecturally, the part uses a Cortex-M4F core coupled with a 5-stage pipeline, tightly-coupled memory, and a multi-layer AHB bus matrix giving simultaneous access to Flash, SRAM, and peripherals. The dual-panel Flash supports read-while-write, allowing firmware updates without halting application code. Hardware AES, true RNG, and secure boot features accelerate IoT security implementations. Typical applications include industrial automation controllers, USB peripherals and HID devices, CAN-FD node ECUs, motor control FOC drives, IoT sensor hubs, and HMI touch panels. The combination of Cortex-M4F DSP, CAN-FD, and USB makes it especially well-suited to automotive body electronics and connected industrial gateways where real-time deterministic performance is required. Designers should note that the 48-VQFN exposed pad must be soldered to the PCB ground plane for thermal dissipation and signal integrity. Decoupling requires at least one 100 nF ceramic capacitor per VDD pin and a bulk 4.7 uF capacitor near the VDDCORE pin. Programming is supported through Microchip Studio, Atmel Studio 7, MPLAB X IDE, and the SAMD/SAME driver library. This page synthesizes current distributor pricing, same-package drop-in alternatives, and practical PCB design notes that are not consolidated in the manufacturer datasheet, enabling faster part selection and supply-chain resilience.

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ATSAME51G19A-MF - 120MHz Cortex-M4F MCU 512KB Flash | Microchip
ATSAME51G19A-MF

ATSAME51G19A-MF - 120MHz Cortex-M4F MCU 512KB Flash | Microchip

The Microchip Technology ATSAME51G19A-MF is an ARM Cortex-M4F microcontroller from the SAM E51 family, delivering 120 MHz CPU performance with 512 KB of flash and 192 KB of SRAM in a 48-pin QFN (7x7 mm) package. The device integrates a Floating Point Unit (FPU), up to 1 MB Dual Panel Flash with ECC, CAN-FD peripherals and a full-speed USB 2.0 interface, addressing the connectivity and signal-processing needs of industrial and general-purpose embedded designs. What is a Cortex-M4F microcontroller? An ARM Cortex-M4F microcontroller is a 32-bit embedded processor that combines a high-performance core with a single-precision Floating Point Unit (FPU), DSP extensions and tightly-coupled peripherals. It sits in the taxonomy MCU -> 32-bit MCU -> ARM Cortex-M4F MCU -> general-purpose microcontroller with FPU, and is widely used where deterministic real-time control meets numerical signal processing. Key features include hardware cryptographic support through the TrustZone-ready SAM E51 platform, a 12-bit ADC up to 1 MSPS, multiple SERCOM serial interfaces configurable as UART/SPI/I2C, an integrated Full-Speed USB 2.0 transceiver, and an SD/MMC host controller. The 120 MHz Cortex-M4F with FPU delivers 1.25 DMIPS/MHz while retaining low-power sleep modes down to single-digit microampere quiescent current. The ATSAME51G19A-MF leverages a Harvard-bus architecture with separate I/D buses, a multi-layer AHB matrix and tightly-coupled SRAM banks to avoid flash wait states on hot code paths. ECC on flash and SRAM provides single-bit error correction and double-bit error detection, important for industrial safety and field-reliability standards. The integrated Peripheral Touch Controller (PTC) and 6-pin configurable SERCOM set accelerate HMI and connectivity designs. Typical applications include industrial control and automation systems, USB-connected human-interface devices, automotive body and infotainment subsystems, IoT edge nodes, and motor-control boards where the FPU accelerates real-time field-oriented control algorithms. The CAN-FD peripheral also makes the part attractive for industrial bus and medical device networking. When designing with this MCU, allocate decoupling close to every VDD pin, follow the 48-pin QFN thermal pad soldering guidance, and use the MPLAB Harmony v3 framework for peripheral configuration to reduce firmware bring-up time. The '-MF' suffix denotes the 48-pin QFN industrial temperature grade (-40 C to +125 C) packaged on trays. This page synthesizes manufacturer specifications, distributor pricing, drop-in alternatives and design notes sourced from Microchip's SAM E51 datasheet and live distributor listings as of 2026-09-21 - information engineers can act on immediately rather than re-deriving from raw datasheets.

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ATSAME51G19A-MFT - 120MHz Cortex-M4F MCU 512KB Flash | Microchip
ATSAME51G19A-MFT

ATSAME51G19A-MFT - 120MHz Cortex-M4F MCU 512KB Flash | Microchip

The Microchip Technology ATSAME51G19A-MFT is a 32-bit ARM Cortex-M4F microcontroller with FPU running up to 120 MHz, integrating 512 KB Flash and 192 KB SRAM in a 48-pin VQFN (7x7 mm) package with exposed thermal pad. It targets general-purpose connected and CAN-FD-enabled applications and is part of the SAM E51 high-performance MCU family. An ARM Cortex-M4F microcontroller is a 32-bit MCU core with single-precision floating-point unit and DSP extensions, sitting within the broader hierarchy: microcontroller -> embedded microprocessor -> SoC. The Cortex-M4F class is widely adopted for motor control, IoT edge nodes, and industrial HMI because it balances deterministic real-time behaviour with sufficient compute for signal-processing and connectivity stacks. Key features of the ATSAME51G19A-MFT include 512 KB dual-panel Flash with ECC, up to 256 KB SRAM with ECC, a high-speed USB 2.0 Full-Speed device/host interface, two CAN-FD controllers, an SD/MMC host controller, up to 99 I/O pins, a 12-bit 1 MSPS ADC, dual 12-bit DACs, and multiple SERCOM (SERial COMmunication) instances configurable as UART/SPI/I2C/LIN. The integrated FPU accelerates single-precision math for sensor fusion and digital filter routines, while the Memory Protection Unit and ECC on Flash/SRAM support safety-relevant firmware integrity. Architecturally, the device combines the Cortex-M4F core with a 4-channel DMA, Event System for deterministic inter-peripheral signalling, and a low-power SleepWalking peripheral set. The 1.62-3.6 V wide operating range lets it run from a single Li-ion cell or 3.3 V system rail. The 48-QFN (MF suffix) variant is offered in -40C to +125C industrial grade and ships on tape-and-reel. Typical applications include industrial CAN-FD sensor hubs, USB-connected data loggers, motor control BLDC/PMSM drive boards, building automation gateways, and portable medical accessories. It is also widely used as a main MCU on IoT edge nodes bridging low-power wireless modules to cloud services. Designers should pay attention to decoupling (one 100 nF per VDD pin plus a 4.7 uF bulk), exposed-pad soldering for thermal relief, and supply sequencing when 3.3 V and 1.8 V rails are derived separately. The MF QFN package requires careful trace routing under the pad to avoid signal-integrity issues on the high-speed USB lines. This page synthesises distributor pricing, drop-in and same-package alternatives, application references, and design notes that go beyond the manufacturer datasheet, helping procurement and firmware engineers shortlist, source, and validate the part quickly.

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ATSAME51G19A-MU - 120MHz ARM Cortex-M4F MCU, 512KB Flash | Microchip
ATSAME51G19A-MU

ATSAME51G19A-MU - 120MHz ARM Cortex-M4F MCU, 512KB Flash | Microchip

The Microchip Technology ATSAME51G19A-MU is a 32-bit ARM Cortex-M4F microcontroller running up to 120 MHz with a single-precision Floating Point Unit (FPU), 512 KB of Flash, and 192 KB of SRAM, packaged in a 48-pin VQFN (7x7 mm) industrial-temperature (-40C to +85C) enclosure. It is a member of the SAM E51 high-performance family and integrates CAN-FD, USB 2.0 Full-Speed with on-chip transceiver-less PHY, SERCOM peripherals, an I2S/SSC audio interface, a 12-bit 1 Msps ADC, a 12-bit DAC, and a hardware Cryptographic Accelerator (TRNG, AES, secure boot). A microcontroller (MCU) such as the ATSAME51G19A-MU is a programmable processor-on-a-chip combining CPU core, non-volatile program memory, volatile data memory, peripherals, and interrupt logic on a single die. Within the broader taxonomy, MCUs sit beneath microprocessors in capability and power, occupying the space between 8-bit microcontrollers and Cortex-A-class application processors. The SAM E51 series belongs to the Cortex-M4F class - deterministic, low-latency, DSP-extended controllers designed for real-time embedded control with native floating-point support. Key features include the Cortex-M4F core with FPU and DSP extensions, dual-panel Flash with ECC for safety, 192 KB SRAM with ECC, a 16 KB instruction cache, an 8-channel DMA controller, and a comprehensive clock tree supporting 48 MHz USB operation from the internal 48 MHz DFLL or an external crystal. The 12-bit 1 Msps ADC provides 16 analog inputs, while the 12-bit DAC supports up to 500 ksps. Operating voltage spans 1.62V to 3.6V. Architecturally, the SAM E51 implements a Harvard bus with separate AHB/APB bridges, deterministic latency for interrupts, and TrustZone-M-lite secure boot via the on-chip cryptographic accelerator. The Cortex-M4F DSP extensions accelerate FFT, FIR, and matrix arithmetic, while the FPU handles sensor-fusion math without software floating-point overhead. Typical applications include industrial automation controllers, USB-CAN bridge gateways, IoT edge nodes, motor-control front ends, low-cost audio streaming devices, and human-machine interface (HMI) panels with TFT displays. The wide 1.62V-3.6V supply range allows direct Li-ion and 3.3V regulated rails. When designing with the ATSAME51G19A-MU, ensure the PCB footprint accommodates the 48-VQFN 7x7 mm land pattern with thermal pad and that decoupling is placed within 2 mm of every supply pin. The internal 48 MHz DFLL requires a 32.768 kHz crystal reference for USB Full-Speed and CAN-FD accuracy.

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ATSAME51G19A-MU-EFP - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
ATSAME51G19A-MU-EFP

ATSAME51G19A-MU-EFP - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip

The Microchip Technology ATSAME51G19A-MU-EFP is an ARM Cortex-M4F microcontroller from the SAM E51 family, running up to 120 MHz with a single-precision Floating Point Unit (FPU), integrating 512 KB of Flash and 192 KB of SRAM, and housed in a 48-pin VQFN (7x7 mm) package with extended Flash performance. It is a 32-bit RISC MCU designed for general-purpose connected and industrial applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. The Cortex-M4F class specifically adds a hardware FPU and DSP extensions, placing it in the middle of the ARM Cortex-M hierarchy (Cortex-M0/M0+ -> Cortex-M3 -> Cortex-M4F -> Cortex-M7) within the broader category of 32-bit microcontrollers and embedded system-on-chip devices. Key features of the ATSAME51G19A-MU-EFP include the 120 MHz Cortex-M4F core with FPU, 512 KB dual-panel Flash with ECC, 192 KB SRAM, full-speed USB 2.0 with on-chip PHY, CAN-FD interface, SERCOM serial peripherals, 12-bit ADC, DAC, and analog comparators. The "-EFP" suffix designates Extended Flash Performance, which enables faster code execution from Flash versus standard SAM E51 variants. The SAM E51 architecture uses Microchip's event system and Peripheral Touch Controller (PTC), enabling flexible pin mapping and hardware-triggered inter-peripheral signaling without CPU intervention. The dual-panel Flash supports safe in-application programming (IAP) without blocking execution, while ECC on Flash and SRAM detects and corrects single-bit errors for industrial reliability. Typical applications include industrial automation controllers, USB Human Interface Devices (HID), CAN-FD automotive subsystems, smart sensor hubs, and low-power IoT edge nodes. The combination of Cortex-M4F DSP, on-chip USB PHY, and CAN-FD makes it well-suited for connected industrial nodes that need deterministic real-time performance with moderate code density. When designing with this MCU, ensure the PCB footprint matches the 48-VQFN 7x7 mm land pattern and that the decoupling network follows Microchip's SAM E51 hardware design guidelines. Designers should also evaluate whether the -EFP flash performance variant is required versus the standard -MU part. This page synthesizes distributor pricing, drop-in alternatives, comparison tables, and design notes drawn from the verified SAM E51 datasheet and cross-reference data, providing engineering value beyond the manufacturer's datasheet alone.

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ATSAME51G19A-MUT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
ATSAME51G19A-MUT

ATSAME51G19A-MUT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip

The Microchip Technology ATSAME51G19A-MUT is a high-performance 32-bit ARM Cortex-M4F microcontroller running up to 120 MHz with a single-precision Floating Point Unit (FPU), 512 KB of Flash, and 192 KB of SRAM, housed in a 48-pin QFN (7x7 mm) package for industrial temperature grade (-40C to +85C). What is a Cortex-M4F microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash and SRAM), and peripherals (timers, ADC, communication interfaces) into one package. The Cortex-M4F variant adds a hardware Floating Point Unit (FPU) and DSP extensions, enabling efficient math for sensor fusion, motor control, and audio processing. Within Microchip's portfolio, the SAM E51 family sits in the mid-performance tier: SAM D2x/D1x < SAM D5x/E5x < SAME70/SAMS70 in raw processing and integration. The 'E51' sub-family adds CAN-FD support on top of the D51 feature set, making it well suited for industrial automation and connected embedded designs. Key features include an integrated Cortex-M4F core with FPU and DSP instructions, 512 KB dual-panel Flash with ECC, up to 192 KB SRAM with ECC, a 12-bit 1 MSPS ADC, 16-bit PWM timers, and a rich set of peripherals: USB 2.0 Full-Speed, CAN 2.0A/B and CAN-FD, I2S, SPI, I2C, and SERCOM. The 48-pin QFN package provides 37 programmable I/O pins, leaving enough headroom for SPI/I2C buses, motor control PWMs, and analog front-end connections. Technically, the SAM E51 family supports SleepWalking peripherals and Event System for low-power operation, the integrity of which is preserved by ECC on Flash and SRAM. The 120 MHz operation combined with the M4F pipeline delivers up to 150 CoreMark, balancing throughput with deterministic interrupt latency required by real-time control loops. Typical applications include industrial control, IoT gateways, USB peripherals, CAN-FD automotive nodes, building automation, and human-machine interface (HMI) panels. The wide 1.71V-3.6V supply range and industrial temperature grade extend use into factory-floor and outdoor environments. When designing with the ATSAME51G19A-MUT, prefer the ASF4/MPLAB Harmony 3 framework and configure the GCLK generators before peripheral clocking. The 48-pin QFN exposed pad must be soldered to the ground plane to keep junction temperature within the 125C limit under full CPU load.

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ATSAME51G19A-MUT-EFP - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
ATSAME51G19A-MUT-EFP

ATSAME51G19A-MUT-EFP - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip

The Microchip Technology ATSAME51G19A-MUT-EFP is a 32-bit ARM Cortex-M4F microcontroller running up to 120 MHz with single-precision Floating Point Unit (FPU), 512 KB of Flash with ECC, and 192 KB of SRAM, housed in a 48-pin VQFN (7x7 mm) package with exposed thermal pad. The SAM E51 series targets general-purpose high-performance embedded applications requiring deterministic real-time control with rich connectivity (CAN-FD, USB, Ethernet, I2S). A microcontroller (MCU) is a single-chip computer containing a processor core, program memory (Flash), data memory (SRAM), and a rich set of peripheral interfaces. The ARM Cortex-M4F architecture provides a Harvard-bus 32-bit core with DSP extensions and an IEEE 754 single-precision FPU; this places the SAM E51 within the broader hierarchy of microcontroller -> embedded processor -> semiconductor device. Within Microchip's portfolio, the SAM E51 sits between the lower-pin SAM D21 (Cortex-M0+) and the higher-end SAME70/SAMS70 (Cortex-M7), offering a balanced blend of performance, peripherals, and power efficiency. Key features of the ATSAME51G19A-MUT-EFP include 512 KB dual-panel Flash with Error Correction Code (ECC), up to 192 KB SRAM with ECC, a 12-bit 1 Msps ADC, two 12-bit DACs, full-speed USB host/device, CAN-FD, Ethernet MAC, SD/MMC host, and up to 99 I/O pins in the larger package variants. The device also integrates a 16-channel Event System for inter-peripheral signaling without CPU intervention, a 32-bit RTC, and a SERCOM peripheral framework offering configurable I2C/SPI/UART on most pins. The "EFP" suffix denotes the Extended Flash Performance revision, providing higher endurance and retention characteristics versus the standard Flash revision. The part operates across 1.71V to 3.63V VDDIO/VDDIN and supports an industrial temperature grade of -40C to +85C. A built-in 8-channel DMA controller plus 16-bit timers/counters and a 24-bit timer/counter make it suitable for precise motor-control and power-conversion applications. Typical applications include industrial automation controllers, CAN-FD nodes in automotive and building-automation networks, USB peripherals and Human Interface Devices (HID), IoT edge nodes with Ethernet, audio processing via I2S, and motor drives for BLDC and stepper systems. In all of these, the Cortex-M4F DSP instructions plus FPU accelerate signal-processing loops such as audio codecs, FFT pre-processing, and Field-Oriented Control (FOC). Designers should note the VQFN-48 package has an exposed thermal pad that MUST be soldered to the PCB ground plane for proper heat dissipation and electrical performance. Decoupling VDDIN and VDDIO with 100 nF plus 4.7 uF ceramic capacitors placed within 3 mm of the respective pins is recommended per Microchip application note recommendations. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, providing a one-stop engineering reference.

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ATSAME51J18A-AF - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip
ATSAME51J18A-AF

ATSAME51J18A-AF - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip

The Microchip ATSAME51J18A-AF is a 32-bit ARM Cortex-M4F microcontroller from the SAM E51 family, running up to 120 MHz with 256 KB of dual-panel Flash and 128 KB of SRAM, housed in a 64-pin TQFP (10x10 mm) package. It integrates a Floating Point Unit (FPU), a high-speed 12-bit ADC, USB 2.0 Full-Speed with on-chip PHY, and a CAN-FD controller, making it well suited to connected industrial and embedded applications. Operating from 1.71V to 3.6V with an extended industrial temperature range, the part balances compute density with rich peripheral integration. A 32-bit microcontroller (MCU) is a single-chip processor that integrates CPU core, program memory (Flash), data memory (SRAM), and a wide peripheral set into one IC. Within the embedded hierarchy, an MCU sits below an MPU (microprocessor) in integration and is optimized for deterministic, real-time control tasks. The SAM E51 family specifically targets industrial and general-purpose applications by combining a Cortex-M4F core (DSP extensions + single-precision FPU) with hardware cryptography, a high-performance bus matrix, and a tightly-coupled SRAM/Flash subsystem that sustains zero-wait-state execution at 120 MHz. Key features include the Cortex-M4F core with FPU and DSP instructions, an 8-channel Event System for inter-peripheral signalling without CPU intervention, up to 51 programmable I/O pins, a 12-bit 1 Msps ADC with up to 16 channels, multiple SERCOM interfaces configurable as UART/SPI/I2C, a USB 2.0 Full-Speed device/host with on-chip transceiver, and an AEC-Q100-qualified automotive option in the same package. The TC (Timer/Counter) block supports capture, compare, PWM, and quadrature decoding, and a Real-Time Clock (RTC) is included for time-of-day retention. The ATSAME51J18A-AF uses a dual-panel Flash with ECC for robust code storage and operates over a 1.71V to 3.6V supply with internal LDO and DC-DC regulators selectable for core power. The 64-pin TQFP package is footprint-compatible with the wider SAM D5x/E5x family, enabling PCB reuse across flash/RAM options. The integrated Event System and SERCOM peripherals allow highly flexible pin mapping, reducing routing pressure on dense boards. Typical applications include industrial control (PLCs, motor control, sensor hubs), USB peripherals and human-interface devices, CAN-FD nodes in automotive and industrial networks, building automation and HVAC controllers, and connected IoT edge nodes. Designers choose the E51 for its balance of high core frequency, large SRAM, and integrated USB and CAN-FD that remove external PHY costs. When designing with this device, ensure the 64-pin TQFP land pattern is used and that the decoupling network specified in the datasheet is placed close to the AVDD/VDD pins. Choose between the internal LDO and DC-DC regulator modes based on efficiency vs EMI trade-offs, and reserve one SERCOM for firmware updates via UART or SPI. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet.

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ATSAME51J18A-AFT - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip
ATSAME51J18A-AFT

ATSAME51J18A-AFT - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip

The Microchip Technology ATSAME51J18A-AFT is a 32-bit ARM Cortex-M4F microcontroller from the SAM E51 high-performance family, delivering up to 120 MHz CPU clock with a single-precision Floating Point Unit (FPU) in a 64-pin TQFP (10x10 mm) package. The device integrates 256 KB of Flash with ECC and 128 KB of SRAM, supports USB 2.0 Full-Speed and CAN-FD connectivity, and runs from a 1.71 V to 3.6 V supply. The -AFT suffix denotes Tape & Reel packaging and the standard 125 °C extended temperature grade. A Cortex-M4F microcontroller is a 32-bit RISC processor core based on the ARMv7-M architecture with DSP extensions and a hardware Floating Point Unit. The M4F sits within the ARM Cortex-M family (M0/M0+/M3/M4/M7/M33) and is widely adopted for mixed signal-control applications where deterministic real-time response, low power, and DSP-class signal processing must coexist in a single die. Microcontroller ICs such as the SAM E51 serve as the application host in embedded systems, executing firmware, handling peripherals, and bridging sensors to connectivity interfaces. Key features of the ATSAME51J18A include a 120 MHz core with FPU, 256 KB Flash, 128 KB SRAM, a 12-bit 1 MSPS ADC with up to 16 channels, two 12-bit DAC channels, multiple SERCOM interfaces, and a Cryptographic Accelerator supporting AES, SHA, and True Random Number Generator (TRNG). It also offers a Parallel Capture Controller (PCC) for camera/video input and a 2-channel CAN-FD controller, which extends the classical CAN 2.0B data field to 64 bytes at up to 5 Mbit/s. The integrated I/O pin count of 51 GPIO supports a wide range of mixed-signal designs. Architecturally, the SAM E51 family combines the Cortex-M4F core with up to 1 MB Dual-Panel Flash, an embedded 32-bit bus matrix, and an Event System that allows peripheral-to-peripheral signalling without CPU intervention. The dual-panel flash permits live firmware updates (live update) by switching execution between two memory banks without an external bootloader, which simplifies IEC 61508 and IEC 60730 functional-safety compliance paths. Typical applications for the ATSAME51J18A-AFT include industrial HMI panels, building automation controllers, automotive body electronics, USB-to-CAN bridges, sensor fusion nodes, and low-power IoT edge devices. Designers select this MCU when deterministic Cortex-M4F performance, FPU math for control loops, and integrated CAN-FD and USB connectivity are required within a single 64-pin TQFP footprint. When designing with this part, ensure that the decoupling network on each VDD/VSS pair uses 100 nF X7R ceramic capacitors placed within 2 mm of each pin, and that the 32.768 kHz crystal load capacitor values match the crystal manufacturer's CL specification to guarantee RTC accuracy across the full -40 °C to +125 °C extended temperature range. This page synthesizes distributor pricing, drop-in alternatives within the SAME51 family, and practical design considerations not collected in a single place by the manufacturer datasheet.

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ATSAME51J18A-AU - 120MHz Cortex-M4F MCU, 256KB Flash, 64-TQFP | Microchip
ATSAME51J18A-AU

ATSAME51J18A-AU - 120MHz Cortex-M4F MCU, 256KB Flash, 64-TQFP | Microchip

The Microchip Technology ATSAME51J18A-AU is a 32-bit ARM Cortex-M4F microcontroller from the SAM E51 high-performance family, running up to 120 MHz with single-precision Floating Point Unit (FPU) and DSP extensions. It integrates 256 KB of Flash with ECC, 128 KB of SRAM, and is housed in a 64-pin TQFP (10x10 mm) industrial-grade package rated from -40C to +85C. Key features include a 12-bit 1 MSPS ADC, high-speed USB, CAN-FD, SERCOM, I2S, and a 32 KB cache for external bus. A 32-bit microcontroller (MCU) is an integrated processor core with on-chip memory and peripherals built for embedded control. The Cortex-M4F architecture is an ARM processor with hardware single-precision floating point, DSP instructions, and a Nested Vectored Interrupt Controller (NVIC). In the power management hierarchy, an MCU sits at the heart of a digital system, executing firmware that orchestrates sensors, actuators, communication interfaces, and power conversion. The SAM E51 family is the high-performance tier in Microchip's SAM D5X/E5X lineup, bridging gap between Cortex-M0+ MCUs and Cortex-M7 application processors. Key features include hardware floating point acceleration, an integrated 12-bit ADC capable of 16-bit oversampling, a high-speed USB 2.0 full-speed and high-speed PHY on-chip, CAN-FD, up to six SERCOM-configurable serial interfaces (USART/SPI/I2C), a 10/100 Ethernet MAC interface, and a real-time clock with calendar. The 256 KB Flash is dual-panel with ECC to improve robustness against bit-flips, and the SRAM supports 8 KB of error correction via parity. The SAM E51 uses a 5-stage pipelined Cortex-M4F core with hardware FPU and DSP extensions, single-cycle 32-bit MAC, and a Memory Protection Unit (MPU). Peripherals are interconnected via an AHB-APB matrix with DMA support on every major interface. The 1.2V internal core LDO can be bypassed for direct 1.2V supply to minimize power consumption in high-performance runs. Typical applications include industrial automation controllers, smart energy metering, building automation gateways, USB peripherals (CDC/HID/MSC), CAN-FD automotive body controllers, IoT edge nodes with Ethernet, and human-machine interface (HMI) panels. The combination of Ethernet, USB, and CAN-FD makes the ATSAME51J18A-AU particularly suited for connected industrial nodes that must bridge multiple fieldbuses. When designing with this device, allocate a 1uF + 100nF decoupling pair within 2 mm of each supply pin and a 32.768 kHz crystal for the RTC. Use the on-chip FPU to offload DSP tasks from the host controller. The BOOTPROT and NVMCTRL settings must be programmed to lock the firmware and prevent unintended Flash access during field updates. This page synthesizes distributor pricing across DigiKey, Mouser, and LCSC, drop-in SAM D5X/E5X alternatives with verified pin compatibility, and practical engineering notes (analog reference, decoupling, layout) that are not consolidated in the Microchip datasheet.

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ATSAME51J18A-AU-EFP - 120MHz Cortex-M4F MCU 256KB Flash TQFP-64 | Microchip
ATSAME51J18A-AU-EFP

ATSAME51J18A-AU-EFP - 120MHz Cortex-M4F MCU 256KB Flash TQFP-64 | Microchip

The Microchip Technology ATSAME51J18A-AU-EFP is a 32-bit ARM Cortex-M4F microcontroller from the SAM E51 family running up to 120 MHz, integrating 256 KB of Flash with ECC and 128 KB of SRAM, housed in a 64-pin TQFP (10x10 mm) package. The "EFP" descriptor indicates Extended Flash Performance tuning and tray packaging. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and a rich set of peripherals into one package. The SAM E51 line belongs to the ARM Cortex-M4 class with single-precision Floating Point Unit (FPU) plus DSP extensions, sitting in the hierarchy MCU -> embedded controller -> semiconductor. These parts target industrial and general-purpose embedded applications requiring deterministic real-time performance, low power, and connectivity. Key features of the ATSAME51J18A-AU-EFP include the Cortex-M4F core with FPU and DSP instructions, up to 120 MHz operation, 256 KB dual-panel Flash with ECC, 128 KB SRAM, full-speed USB 2.0 with embedded host and device support, CAN-FD controller, up to six SERCOM interfaces for UART/SPI/I2C, a 12-bit 1 MSPS ADC, 16-bit analog comparators, and a 16-bit PWM/timer counter array. The device operates from 1.71 V to 3.84 V, suiting 3.3 V systems. Architecturally, the SAM E51 uses a 4-layer AHB bus matrix connecting the CPU, Flash, SRAM, and peripherals for low-latency memory access. The Flash includes hardware ECC for class-B safety integrity. The "Extended Flash Performance" bin tightens read characteristics at lower VDD, allowing the same 120 MHz zero-wait-state core speed across a wider operating envelope. Advanced power modes include IDLE, STANDBY, BACKUP, and OFF with battery-domain retention. Typical applications include industrial automation controllers, building-automation nodes (BACnet/Modbus gateways), IoT edge nodes with USB device/host roles, automotive body and accessory ECUs, drone flight controllers and ESCs, and human-machine interface (HMI) panels. The combination of USB, CAN-FD, and rich SERCOM connectivity also suits bridging hubs and field-bridge converters. When designing with this MCU, place 0.1 uF plus bulk decoupling within 5 mm of each VDD pin and provide a 32.768 kHz crystal for RTC accuracy. The EFP variant tolerates wider VDD/flash-timing corners than the standard -AU, so firmware written for one typically runs on the other without modification. This page synthesizes distributor pricing, drop-in alternatives from the SAM E5x family, and practical design notes not found in the manufacturer datasheet alone.

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ATSAME51J18A-AUT - SAM E51 Cortex-M4F MCU 120MHz 256KB | Microchip
ATSAME51J18A-AUT

ATSAME51J18A-AUT - SAM E51 Cortex-M4F MCU 120MHz 256KB | Microchip

The Microchip Technology ATSAME51J18A-AUT is a 32-bit ARM Cortex-M4F microcontroller from the SAM E51 high-performance family, delivering up to 120 MHz core clock, 256 KB of dual-panel Flash with ECC, and up to 128 KB of SRAM in a 64-pin TQFP (10x10 mm) package. The integrated Floating Point Unit accelerates single-precision DSP and motor-control math, while the Serial Communication Interface (SERCOM) configurable as USART/SPI/I2C gives the designer six independent channels for mixed-protocol buses. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals on one die. The ATSAME51J18A-AUT belongs to the broader category hierarchy: ARM Cortex-M4F core -> 32-bit RISC microcontroller -> embedded processor -> integrated circuit -> semiconductor. The Cortex-M4F variant adds the single-precision IEEE-754 FPU and DSP extensions (MAC, SIMD), making it a step above the Cortex-M4 and a step below the Cortex-M7 in ARM's performance ladder. Key features highlighted by the manufacturer include a full-speed USB 2.0 interface with integrated PHY, a CAN-FD controller for automotive and industrial protocols, a 12-bit 1 MSPS ADC with up to 16 channels, two analog comparators, a 16-bit Sigma-Delta ADC interface, and a Cryptographic Acceleration module (TRNG, AES, SHA, RSA). The device operates from 1.71 V to 3.63 V across an industrial temperature range of -40 C to +85 C, and supports Sleep, Idle, Standby, Hibernate, and Backup low-power modes for battery-driven designs. Architecturally, the SAM E51 uses Microchip's event system (EVSYS) to allow peripherals to trigger each other without CPU intervention, freeing the core for control loops. The 120 MHz Cortex-M4F reaches 150 CoreMark and 1.27 DMIPS/MHz, which is competitive in the same class as STM32F4 and NXP Kinetis KE1xF. Typical applications include industrial automation PLCs, building automation HVAC controllers, IoT edge nodes with secure cloud connectivity, USB peripherals (HID, CDC, audio), and CAN-FD automotive body-control modules. The integrated hardware crypto accelerator makes the part attractive for OTA-firmware-update designs where TLS handshake latency matters. When designing with this MCU, ensure the 64-pin TQFP land pattern matches your PCB. The -AUT suffix indicates tape-and-reel packaging and 85 C max ambient, so for 125 C designs choose the -AUT-EFP or -AFT variant.

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ATSAME51J18A-AUT-EFP - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip
ATSAME51J18A-AUT-EFP

ATSAME51J18A-AUT-EFP - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip

The Microchip Technology ATSAME51J18A-AUT-EFP is a 32-bit ARM Cortex-M4F microcontroller from the SAM E51 family, running up to 120 MHz with a single-precision Floating Point Unit (FPU). It integrates 256 KB of Dual-Panel Flash with ECC and 128 KB of SRAM, and is housed in a 64-pin TQFP (10x10 mm) package with Extended Flash Performance and USB + CAN interfaces. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O. The ATSAME51J18A-AUT-EFP belongs to the ARM Cortex-M4F family, a 32-bit RISC architecture with DSP extensions and a hardware FPU. Within the broader taxonomy, MCUs sit under microcontrollers -> embedded processors -> semiconductors. The Cortex-M4F target application space includes motor control, industrial sensing, connectivity hubs, and consumer audio. Key features include 120 MHz CPU with FPU and DSP instructions, 256 KB Dual-Panel Flash with ECC for robust code storage, 128 KB SRAM, and a high-speed USB 2.0 Full-Speed interface plus a CAN-FD controller. The device also integrates multiple SERCOM peripherals (configurable as UART/SPI/I2C), a 12-bit ADC with up to 16 channels, a 12-bit DAC, and an Event System for deterministic inter-peripheral signaling. The SAM E51 architecture uses a 4-layer AHB matrix for parallel bus access between the CPU, SRAM banks, and peripherals, minimizing contention at high peripheral loads. Hardware accelerators include a Peripheral Touch Controller (PTC) supporting capacitive touch, a Cryptographic Accelerator (TRNG, AES) on equivalent family parts, and an Event System allowing peripherals to trigger each other without CPU intervention - critical for low-latency control loops. Typical applications include industrial automation controllers, USB-to-CAN bridges, IoT edge nodes, smart sensor hubs, and capacitive touch human-machine interfaces. The wide operating voltage (1.71V-3.6V) and -40C to +85C industrial temperature range suit factory-floor deployments. When designing with this device, ensure PCB layout keeps the VDDCORE decoupling network within 5 mm of the LDO output pins. Use the SAM E51 family header files and Atmel/Microchip START or MPLAB Harmony code configurator to generate peripheral initialization code, and validate USB 2.0 Full-Speed signal integrity against the USB 2.0 specification compliance checklist. This page synthesizes distributor pricing, drop-in alternatives from the SAME51/SAMD51 family, and practical design notes not found in the manufacturer datasheet alone.

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ATSAME51J18A-MF - 120MHz ARM Cortex-M4F MCU 256KB Flash | Microchip
ATSAME51J18A-MF

ATSAME51J18A-MF - 120MHz ARM Cortex-M4F MCU 256KB Flash | Microchip

The Microchip Technology ATSAME51J18A-MF is a 32-bit ARM Cortex-M4F microcontroller from the SAM E51 high-performance family, operating at up to 120 MHz with single-precision floating point unit (FPU) and DSP extensions, packaged in a 64-pin QFN (9x9 mm) with industrial temperature range -40C to +125C. It integrates 256 KB of Flash memory with ECC, 128 KB of SRAM, and a comprehensive set of peripherals including USB 2.0 Full-Speed with on-chip PHY, CAN-FD, SERCOM, I2S, and a 12-bit ADC. A microcontroller (MCU) is a single-chip computer containing a processor core, program memory, data memory, and integrated peripherals; ARM Cortex-M4F cores add hardware single-precision floating point and DSP instructions, making the part suitable for signal processing as well as control. The SAM E51 family is part of Microchip's SAM D5x/E5x line built around the Cortex-M4F and positions itself between mainstream Cortex-M0+ parts and higher-end Cortex-M7 devices, offering a balance of deterministic real-time performance, low power consumption, and rich connectivity for industrial and general-purpose applications. Key differentiating features of the ATSAME51J18A-MF include up to 120 MHz CPU clock with FPU and DSP, 256 KB dual-panel Flash with error correction, 128 KB SRAM, full-speed USB 2.0 device/host with on-chip PHY, multiple SERCOM interfaces for UART/SPI/I2C, a 12-bit 1 Msps ADC, a 16-bit analog comparator, and a hardware cryptographic engine supporting AES, SHA, and True Random Number Generator (TRNG). The 64-pin QFN package also provides extensive timer/counter resources and a TC capture compare channel for PWM generation. Architecturally, the SAM E51 uses a Cortex-M4F core with a multi-layer AHB bus matrix, low-power SleepWalking peripherals, and Event System for inter-peripheral signaling without CPU intervention. The dual-panel Flash design allows one bank to be updated while the other executes code, supporting firmware over-the-air (OTA) updates and in-field provisioning. Integrated hardware crypto accelerates AES-256, SHA-256, and secure boot functions. Typical applications include industrial automation controllers, USB HID/CDC peripherals, CAN-FD node gateways, sensor fusion nodes, portable medical devices, and motor-control edge nodes. The combination of USB, CAN-FD, and floating-point math makes it well suited for protocol bridge and gateway designs. When designing with this MCU, ensure decoupling is placed close to the VDD pins and that the 32.768 kHz crystal load capacitors match the crystal manufacturer's specification. The TrustZone for ARMv8-M (Cortex-M33) variant is recommended when secure boot is a hard requirement; the SAM E51 does not implement TrustZone but does support secure firmware update via the bootloader. Programming is supported via Microchip's MPLAB X IDE, MPLAB Harmony v3, and Atmel Studio 7 toolchains. This page synthesizes distributor pricing, same-brand drop-in alternatives (such as the ATSAMD51J18A-MF and ATSAMD51J20A-MF), and practical design notes not found on the manufacturer datasheet.

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ATSAME51J19A-AF - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
ATSAME51J19A-AF

ATSAME51J19A-AF - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip

The Microchip Technology ATSAME51J19A-AF is a 32-bit ARM Cortex-M4F microcontroller with Floating Point Unit running up to 120 MHz, featuring 512 KB of Flash and 192 KB of SRAM in a 64-pin TQFP (10x10 mm) package. The part integrates USB 2.0 Full-Speed with embedded Host, CAN 2.0B, and a 12-bit 1 MSPS ADC with up to 16 channels. What is a Cortex-M4F microcontroller? An ARM Cortex-M4F is a 32-bit RISC processor core designed by ARM Holdings, featuring a hardware Floating Point Unit (single-precision IEEE 754) and DSP extensions. It occupies a position in the hierarchy: microcontroller -> 32-bit MCU -> ARM Cortex-M family -> Cortex-M4F core -> embedded processor. Compared to Cortex-M3, the M4F adds DSP instructions and an FPU, enabling efficient floating-point and signal-processing workloads on a deterministic real-time platform. Key features of the ATSAME51J19A-AF include up to 1 MB Dual-Panel Flash with ECC (512 KB on this die), up to 256 KB SRAM, a 12-bit DAC with 1 MSPS sampling, multiple SERCOM interfaces (up to 8 configurable UART/SPI/I2C), an integrated Ethernet MAC (10/100 Mbps), and a Cryptographic Acceleration module. The SAM E51 series is AEC-Q100 qualified, making this MCU suitable for harsh-environment automotive and industrial deployments. The device implements Microchip's Event System for inter-peripheral signalling without CPU intervention, a SleepWalking peripheral clock-gating scheme for low-power operation, and a Dual-Panel Flash architecture that allows concurrent read/write operations, eliminating the need for explicit EEPROM emulation. The 120 MHz core delivers 150 DMIPS / 273 CoreMark performance, and the integrated DSP instructions accelerate audio codecs, motor-control loops, and predictive maintenance math. Typical applications include industrial control and HMI, automotive CAN body and gateway ECUs, USB peripherals (CDC, HID, Mass Storage), smart energy metering, and IoT edge nodes with Ethernet connectivity. The part is also commonly used as a step-up replacement for legacy SAM4S or STM32F4 designs in safety-critical industrial installations. When designing with the ATSAME51J19A-AF, allocate decoupling capacitance of 100 nF per VDD pin plus a bulk 4.7 uF capacitor on the main rail. Route the 32.768 kHz low-frequency crystal traces symmetrically and place the load capacitors within 3 mm of the XIN32/XOUT32 pins. For USB applications, the D+/D- traces must be 90 ohm differential with length matching within 2 mm, and the internal 1.5 kohm pull-up on D+ can be used in low-speed/full-speed device mode. This page synthesizes verified distributor pricing, parametric drop-in alternatives, and practical design notes beyond the manufacturer datasheet, providing an engineering-focused reference for selecting the ATSAME51J19A-AF for new designs and re-purposing existing PCB layouts.

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ATSAME51J19A-AFT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
ATSAME51J19A-AFT

ATSAME51J19A-AFT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip

The Microchip Technology ATSAME51J19A-AFT is a high-performance 32-bit ARM Cortex-M4F microcontroller with FPU, running up to 120 MHz, integrating 512 KB of dual-panel Flash and 192 KB of SRAM, in a 64-pin TQFP (10x10 mm) extended-temperature package. It belongs to the SAM E51 series, optimized for industrial and general-purpose applications requiring deterministic real-time response and rich connectivity. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O onto one silicon die. The Cortex-M4F class adds a hardware single-precision Floating Point Unit and DSP-extending instructions, making this category of MCU well-suited to motor control, digital signal processing, sensor fusion, and industrial control tasks where deterministic latency and computational density are required. Key features of the ATSAME51J19A-AFT include the ARM Cortex-M4F core with FPU and DSP extensions, 512 KB dual-panel Flash with ECC, 192 KB SRAM, dual CAN-FD controllers, a high-speed USB 2.0 Full-Speed interface, and an Event System for inter-peripheral signaling. The device integrates up to 51 programmable I/O pins, multiple SERCOM (serial communication) instances configurable as UART/SPI/I2C, and a 12-bit 1 MSPS analog-to-digital converter. The Cortex-M4F core with FPU and DSP extensions is the primary performance differentiator versus Cortex-M0/M3 competitors. Architecturally, the SAM E51 uses a multi-bus AHB/APB matrix that allows simultaneous data transfers between the CPU, DMA, and peripherals without stalling the core. The dual-panel Flash enables live firmware updates without downtime by switching between two physical Flash banks. The integrated FPU accelerates IEEE-754 single-precision math, while the DSP extensions handle single-cycle MAC operations on 16-bit data, which are essential for motor-control algorithms. Typical applications include industrial automation controllers, CAN-FD node endpoints in vehicle gateways and industrial backbones, USB device or embedded-host peripherals (e.g., HID, CDC, mass storage), motor control and inverter drives, and IoT sensor hubs with edge processing. The dual CAN-FD and high-speed USB combination is particularly well aligned with industrial gateway and smart-factory designs. When designing with this device, ensure the TCXO-crystal or external clock source meets the 120 MHz specification and that the on-board decoupling is sized per the SAM E51 hardware design checklist. Programming is supported via Microchip's MPLAB X IDE with MPLAB Harmony 3 framework, providing production-ready peripheral drivers and middleware. This page synthesizes verified distributor pricing, same-brand drop-in alternatives in the same 64-TQFP footprint, and practical design considerations not aggregated in the manufacturer datasheet.

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ATSAME51J19A-AU - ARM Cortex-M4F 120MHz 512KB MCU | Microchip
ATSAME51J19A-AU

ATSAME51J19A-AU - ARM Cortex-M4F 120MHz 512KB MCU | Microchip

The Microchip ATSAME51J19A-AU is an ARM Cortex-M4F microcontroller running up to 120 MHz with single-precision floating-point unit (FPU), 512 KB of dual-panel Flash and 192 KB of SRAM, packaged in a 64-pin TQFP (10x10 mm). It belongs to the SAM E51 family targeted at industrial and general-purpose applications and integrates a full set of peripherals including a high-speed USB, CAN-FD, Ethernet MAC (via the GMAC variant on related parts), SERCOM, I2S, ADC, DAC and touch sensing (PTC). A 32-bit ARM Cortex-M microcontroller is a system-on-chip combining a processor core, on-chip memory, and peripherals around a unified bus matrix. Within the broader taxonomy it sits under MCU (microcontroller) -> embedded processor -> semiconductor IC. The Cortex-M4F specifically adds DSP extensions and an FPU, letting engineers execute signal-processing and control loops in hardware instead of software emulation, which directly reduces CPU load and improves determinism. Key features include 120 MHz CPU clock with FPU, 512 KB dual-bank Flash that supports live update, full-speed USB 2.0 device/host, CAN 2.0B and CAN-FD, up to 6 SERCOM channels each configurable as UART/SPI/I2C, a 12-bit ADC up to 1 Msps, a 10-bit DAC, AES/SHA hardware crypto accelerator, and a 2 KB additional user row for EEPROM emulation. Operating voltage is 1.71 V to 3.63 V and junction range is -40 C to +85 C (industrial grade, AU suffix). Architecturally, the device uses a multi-layer AHB bus matrix connecting the Cortex-M4F core, DMA controller (24 channels), HS USB, and peripherals, allowing concurrent bus-master activity without starvation. The dual-panel Flash with Prefetch and Cache, plus the FPU, deliver >230 CoreMark/MHz-class performance while keeping active current under typical industrial budgets. Typical applications include industrial control (PLC, motor control), USB peripherals, CAN-FD nodes in automotive and industrial networks, HMI with touch and TFT, smart energy metering, and IoT gateways. Design considerations include mandatory 0.1 uF + 1 uF decoupling near VDD/VSS pairs, exposure-pad grounding for thermal relief, and route the HS USB D+/D- as a 90-ohm differential pair. Pin-compatible same-family options such as ATSAME51J20A (1 MB Flash) allow post-design memory upgrades without PCB rework. This page synthesizes distributor pricing, same-family drop-in alternatives (ATSAME51J18A-AU, ATSAME51J20A-AU, ATSAMD51J19A-AU, ATSAMDA1F15B-AU), practical design notes, and parametric comparisons that supplement the manufacturer datasheet and distributor listings.

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ATSAME51J19A-AU-EFP - 120MHz Cortex-M4F MCU 512KB | Microchip
ATSAME51J19A-AU-EFP

ATSAME51J19A-AU-EFP - 120MHz Cortex-M4F MCU 512KB | Microchip

The Microchip Technology ATSAME51J19A-AU-EFP is a high-performance 32-bit ARM Cortex-M4F microcontroller from the SAM E51/SAM E53 family, delivering up to 120 MHz CPU clock speed with single-precision floating-point unit (FPU) and DSP extensions. The device integrates 512 KB of Flash program memory in a 64-pin TQFP (10x10 mm) package, paired with 192 KB of SRAM and operating from a 1.62 V to 3.6 V supply range. A microcontroller (MCU) is a single-chip computer containing a processor core, volatile and non-volatile memory, programmable peripherals, and I/O lines, and the Cortex-M4F architecture extends the baseline Cortex-M instruction set with single-precision IEEE-754 floating-point, saturating arithmetic, and DSP macros. MCUs occupy the lowest tier of the embedded-compute hierarchy - they integrate more functions than a microprocessor (which requires external memory) but less compute density than an MPU/SOC. The Cortex-M4F class typically targets deterministic real-time control with moderate DSP load, distinguishing it from Cortex-M0/M0+ (low-power, integer only) and Cortex-M7 (high-end DSP + Ethernet/display). Key features include an integrated Full-Speed USB 2.0 device/host with PHY, two CAN-FD controllers, a 12-bit 1-MSPS ADC, multiple SERCOM (SERial COMmunication) channels configurable as UART/SPI/I2C, a TCC timer subsystem for motor control, and AES/SHA hardware crypto. The 64-pin TQFP package and -40C to +85C industrial temperature range support 5V-tolerant I/O on selected pins. Architecturally, the SAM E51/E53 family uses an in-application programmable Flash with dual-bank support for fail-safe firmware update, a separate boot-ROM for secure bootloader flows, and a multi-layer AHB/APB bus matrix with tightly-coupled peripherals to reduce interrupt latency below 12 cycles. The part is intended for automotive, industrial automation, and IoT edge nodes requiring USB, CAN, and deterministic real-time performance. Typical applications include industrial sensors, building automation nodes, USB peripherals such as human-interface devices (HIDs), CAN-based distributed control, and low-end motor control loops. Compared with the sibling ATSAME51J18A (Flash 256 KB), the J19A variant doubles the program memory while sharing the same peripheral set. When designing with this device, ensure decoupling follows Microchip's AN3335 guidance (one 100 nF + one 4.7 uF near each power pin), plan for IDE selection between MPLAB X, Atmel Studio, and third-party GCC/IAR toolchains, and reserve the SWD/SWO debug pads in a footprint-compatible 0.05-inch header. This page synthesizes distributor pricing, drop-in TQFP-64 alternatives from the SAME51 family, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single reference for both component selection and design-in.

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ATSAME51J19A-AUT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
ATSAME51J19A-AUT

ATSAME51J19A-AUT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip

The Microchip ATSAME51J19A-AUT is a 32-bit ARM Cortex-M4F microcontroller running up to 120 MHz with a single-precision Floating Point Unit (FPU), housed in a 64-pin TQFP (10x10 mm) package rated for the industrial -40C to +85C temperature range. It integrates 512 KB of Flash, 256 KB of SRAM, and the full SAM E51 peripheral set including a 12-bit ADC, DAC, SERCOM, CAN-FD, and a high-speed USB interface. A Cortex-M4F microcontroller is a 32-bit ARM processor core augmented by a hardware FPU and DSP extensions, optimized for deterministic real-time control and signal processing. The SAM E51 family sits in Microchip's mid-performance MCU tier above the SAMD51 and shares the Cortex-M4F ISA, enabling straightforward firmware migration. The part belongs to the broader product hierarchy: ARM Cortex-M4F MCU -> 32-bit microcontroller -> embedded microcontroller -> integrated circuit -> semiconductor. Key features of the ATSAME51J19A-AUT include 120 MHz core clock with FPU, 512 KB dual-panel Flash for read-while-write firmware update support, 256 KB SRAM, a 12-bit 1 MSPS ADC, 12-bit DAC, up to six SERCOM modules for UART/SPI/I2C, one CAN-FD controller, full-speed USB with embedded PHY, and an Event System for low-latency inter-peripheral signaling. The TQFP-64 footprint provides generous I/O for mixed-signal designs. The architecture pairs the Cortex-M4F core with a 5-stage pipeline, single-cycle MAC, and single-precision IEEE-754 FPU, delivering 1.61 CoreMark/MHz efficiency. Hardware accelerators such as the Peripheral Touch Controller and the I2S interface are integrated, reducing BOM cost. The dual-panel Flash allows one bank to execute code while the other is being reprogrammed, supporting OTA firmware updates without external memory. Typical applications include industrial IoT gateways, CAN-FD connected sensor hubs, USB-C audio interfaces, building automation controllers, and HMI touch panels. The combination of floating-point DSP performance, USB, and CAN-FD makes the part a strong fit for industrial connectivity nodes that aggregate sensor data and present it to a host controller. When designing with this MCU, allocate the 64-pin budget carefully: SERCOMs are highly multiplexed, so pin mapping must be finalized before PCB layout. Use the Atmel Studio 7 / MPLAB X IDE with ASF or Harmony 3 frameworks for peripheral configuration and code generation. This page synthesizes distributor pricing, drop-in SAM E51 / SAMD51 alternatives, and application guidance not found in a single datasheet source, helping engineers select and source the right variant faster.

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ATSAME51J19A-AUT-EFP - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
ATSAME51J19A-AUT-EFP

ATSAME51J19A-AUT-EFP - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip

The Microchip ATSAME51J19A-AUT-EFP is a 32-bit ARM Cortex-M4F microcontroller with FPU running up to 120 MHz, integrating 512 KB of Flash and 192 KB of SRAM in a 64-pin TQFP (10x10 mm) package. It is part of the SAM E51 family, which targets industrial and general-purpose applications requiring high performance, low power, and rich connectivity including USB and CAN-FD. A microcontroller (MCU) is an integrated circuit that combines a processor core, memory (Flash and SRAM), and a range of peripherals on a single die. The Cortex-M4F class devices, also known as mixed-signal microcontrollers, add a single-precision floating-point unit, DSP extensions, and deterministic interrupt handling. Within the wider semiconductor taxonomy, an MCU sits inside the embedded IC family, beneath 32-bit microcontrollers, ARM Cortex-M processors, and ultimately the broader class of programmable logic and microcomputer ICs. Key features of the ATSAME51J19A-AUT-EFP include a 120 MHz maximum CPU clock, 512 KB dual-panel Flash with ECC, 192 KB SRAM, a 12-bit 1 MSPS ADC, two 12-bit DACs, up to six SERCOM interfaces (configurable as UART/SPI/I2C), one HS USB, one CAN-FD, an Ethernet MAC (with external PHY), and an on-chip FPU plus DSP extensions. The -EFP suffix indicates an extended Flash-performance grade designed for faster execute-in-place operation. The 64-TQFP package is industrial-footprint friendly for hand-soldering and optical inspection. Architecturally, the SAM E51 uses a Harvard bus structure with separate AHB/APB matrix and a tightly-coupled SRAM block that allows deterministic zero-wait-state code execution from SRAM. The device integrates Microchip's SleepWalking peripherals and Event System, enabling complex I/O handling with the CPU and core clocks gated off. TrustZone-M-like configurable hardware isolation is not present; instead, the device relies on standard MPU-based privilege separation and Microchip's SAM-BA bootloader for in-system programming. Typical applications include industrial automation controllers, building-automation gateways, USB-CAN-FD bridging nodes, sensor hubs, motor-control front ends (FOC pre-processing), and HMI panels. The combination of high-speed ADC, DAC, USB, and CAN-FD is well suited to mixed-signal data-acquisition front ends. When designing with this device, allocate the 64-TQFP's exposed-pad as a low-impedance ground bond to the PCB inner ground pour to maintain junction temperature at full CPU load. Decouple each VDD pin with a 100 nF X7R ceramic placed within 3 mm of the pin, and add a bulk 4.7 uF tantalum or ceramic close to the VDDCORE pin. This page synthesizes XAIPART distributor pricing, drop-in SAME-package SAM E51/SAMD51 alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATSAME51J19A-MF - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
ATSAME51J19A-MF

ATSAME51J19A-MF - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip

The Microchip Technology ATSAME51J19A-MF is a 32-bit ARM Cortex-M4F microcontroller with Floating Point Unit running up to 120 MHz, integrating 512 KB of Flash and 192 KB of SRAM in a 64-pin QFN (9x9 mm) package. It is part of the SAM E51 family targeted at industrial and general-purpose applications requiring deterministic real-time control, USB and CAN connectivity, and rich analog peripherals. What is a Cortex-M4F microcontroller? An ARM Cortex-M4F microcontroller is a 32-bit embedded processor core with single-precision Floating Point Unit (FPU), hardware single-cycle multiply-accumulate, and optional DSP extensions. It sits in the ARM Cortex-M hierarchy between the M0+ (lowest power, simplest) and M7 (highest performance, with optional double-precision FPU), making it the mainstream choice for motor control, industrial sensing, and connected edge nodes. The SAM E51 line extends the M4F with Microchip's proprietary peripherals, dual-panel Flash for live update, and a 5V-tolerant I/O structure that simplifies industrial interfaces. Key features of the ATSAME51J19A-MF include: 120 MHz core with FPU, 512 KB Flash, 192 KB SRAM, full-speed USB 2.0 with embedded PHY, two CAN-FD controllers, a 12-bit 1 Msps ADC, two 12-bit DACs, multiple SERCOM (UART/SPI/I2C) channels, an on-board crypto accelerator for AES and secure boot, and an Event System for inter-peripheral signaling without CPU involvement. Architecturally, the device pairs a Cortex-M4F core with a multi-layer AHB/APB bus matrix, a low-power SleepWalking peripheral controller, and a dual-panel Flash subsystem that enables in-field firmware upgrades without downtime. The on-chip 32 kHz crystal-less USB PLL and the SERCOM module each independently routable to most I/O pins provide PCB layout flexibility. Typical applications include industrial motor control (FOC for BLDC/PMSM), USB-CAN bridge gateways, building automation HMI, predictive-maintenance sensor hubs, and portable medical instrumentation. The AEC-Q100 qualified -MUT variant addresses automotive body and chassis ECUs, while the -MF variant targets extended-temperature industrial designs. When designing in this part, budget attention to the dual-panel Flash programming flow and the SERCOM pin-mux configuration; both are common first-prototype pitfalls. The integrated 1.2V core LDO requires a 1 uF X7R bypass on VDDIO and a 4.7 uF bulk on VDDIN to meet USB inrush specifications. This page synthesizes distributor pricing, drop-in alternatives within the SAM E51 family, and practical design notes not collected on a single manufacturer datasheet page.

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ATSAME51J19A-MFT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
ATSAME51J19A-MFT

ATSAME51J19A-MFT - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip

The Microchip Technology ATSAME51J19A-MFT is a 32-bit ARM Cortex-M4F microcontroller from the SAM E51 family, running up to 120 MHz with single-precision Floating Point Unit (FPU), 512 KB of Dual-Panel Flash with ECC, and 192 KB of SRAM. Housed in a 64-pin QFN (9x9 mm) package with industrial-grade -40C to +125C temperature rating, this MCU integrates a high-speed USB 2.0 Full-Speed device/host port, a CAN-FD controller, and a 12-bit 1 MSPS ADC. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package. The Cortex-M4F architecture places the ATSAME51J19A-MFT within the broader hierarchy of: microcontroller -> embedded processor -> 32-bit MCU -> ARM Cortex-M family -> Cortex-M4 class (with FPU). It is positioned above Cortex-M0/M0+ for performance-sensitive tasks and below Cortex-M7/M33 in Microchip's SAM lineup. Key features include 120 MHz Cortex-M4F core with DSP extensions, 512 KB Flash with ECC, 192 KB SRAM, 16 KB cache, and up to 51 GPIO. The integrated FPU accelerates floating-point math for sensor fusion and motor control loops, while the 1 MSPS ADC supports precision analog sampling. Dedicated peripherals such as the SERCOM (configurable serial communication) blocks, QSPI for external memory, and an Ethernet MAC interface expand the device's connectivity options. The ATSAME51J19A-MFT utilizes Microchip's proprietary SAM E51 architecture optimized for low-power mixed-signal applications. Dual-Panel Flash allows simultaneous read-while-write operation, enabling live firmware updates without halting execution. The peripheral event system enables hardware-triggered inter-peripheral signaling without CPU intervention, reducing latency for time-critical applications such as motor control and high-speed data acquisition. Typical applications include industrial automation controllers, building automation gateways, USB-connected sensor hubs, automotive body electronics, and consumer IoT edge nodes. The combination of CAN-FD, USB, and Ethernet makes it particularly well-suited for industrial networking and connected-device applications requiring deterministic communication. When designing with the ATSAME51J19A-MFT, pay close attention to the QFN-64 thermal pad layout - the exposed pad must be soldered to a sufficiently large copper pour for heat dissipation and ground return. The internal 48 MHz DFLL should be calibrated against the USB SOF framing for clock accuracy in USB Full-Speed applications. This page synthesizes distributor pricing, drop-in alternatives from Microchip's SAM E51 and SAMD51 families, and practical design notes not found on the manufacturer datasheet.

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