Manufacturer Part Number

ATSAMD51J18A-AUT

Description

High-performance 32-bit microcontroller based on ARM Cortex-M4F core. 120MHz operation speed. Equipped with 256KB Flash memory and 128KB RAM. 64-pin TQFP package size (10x10mm). Wide connectivity including USB, UART, SPI, I2C, QSPI, MMC/SD, LINbus, EBI, EMI and IrDA. Integrated advanced data converters (24 x 12-bit ADC, 2 x 12-bit DAC). Includes peripherals like PWM, DMA, I2S, brown-out detect/reset, and power-on reset. For demanding embedded applications.

Specifications

Series: SAM D51

Core: ARM Cortex-M4F, 32-bit, single-core

Speed: 120MHz

Flash Program Memory: 256KB

RAM: 128KB

I/O Pins: 51

Package: 64-TQFP (10x10mm)

Operating Voltage: 1.71V to 3.63V

ADC: 24 channels, 12-bit

DAC: 2 channels, 12-bit

Operating Temperature: -40°C to +85°C

OS support: Compatible with standard ARM development environments

RoHS: ROHS3 Compliant, REACH Unaffected

Moisture Sensitivity Level: 3 (168 Hours)

ECCN: 5A992C

Device Structure

Single-core ARM Cortex-M4F architecture offering DSP extension and floating point capability. Program memory is internal Flash (256KB), RAM is 128KB. Chip contains internal clocks/oscillation and is housed in a 64-pin TQFP package. Provides 51 general-purpose I/O pins.

Performance Characteristics

Operates up to 120MHz for fast data processing. Floating point unit accelerates math-intensive tasks. Multiple connectivity interfaces support flexible communications. High channel count ADC (24x12-bit) and dual 12-bit DACs enable complex analog monitoring and control. Integrated DMA and PWM enhance real-time task efficiency.

Application Environments

IoT edge devices, motor control, data logging, process automation, industrial control, consumer and industrial electronics, medical instrumentation, smart metering, audio processing, wearable electronics.

Selection Guidelines

Best for applications that need high-speed 32-bit processing, rich connectivity, fast analog-to-digital conversion, and medium size Flash/RAM. Optimize for system designs that require several interface protocols and moderate pin count. Ideal for environments needing robust industrial temperature range and enhanced data security. Evaluate package limitations if using advanced PCB designs.

Usage Considerations

Designers should ensure proper power supply levels (1.71V to 3.63V). Ensure PCB accommodates 64-pin TQFP footprint and Moisture Sensitivity Level 3 requirements. Follow recommended ESD and thermal management guidelines. Use standard ARM toolchains for development. Check availability of software libraries for complex interface implementations.

Potential Equivalent/Replacement Models

Equivalent or alternative models may include other SAM D51 series variants (such as ATSAMD51J19A, ATSAMD51P19A), or Microchip ARM Cortex-M4 microcontrollers with similar memory size and periphery count. Comparable products may also be found in STMicroelectronics STM32F4 series, NXP Kinetis K64 series, or TI TM4C129 series, but pinout, features and voltage range must be compared closely.

If an exact equivalent is not found, contact our Ariat-Tech sales team for personalized assistance in selecting suitable alternate parts.

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