ATSAMD51J19A - AUT Microchip Integrated Circuit (Quad Flat Packages) In Stock
The ATSAMD51J19A-AUT is a 32-bit ARM Cortex-M4F microcontroller from Microchip with 512KB Flash and 192KB SRAM running at up to 120 MHz in a 64-pin TQFP package. It features FPU, DSP instructions, USB Full Speed, and multiple serial interfaces for IoT, wearable, and industrial control applications.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- ATSAMD51J19A - AUT Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ATSAMD51J19A - AUT?
- ARM Cortex-M4F core at 120 MHz with hardware FPU and DSP instructions for real-time signal processing
- 512KB Flash and 192KB SRAM with USB Full Speed device/host for connectivity in IoT and wearable designs
- 64-pin TQFP package with rich peripheral set including multiple SPI, I2C, UART, and 12-bit ADC channels
What is ATSAMD51J19A - AUT used for?
The ATSAMD51J19A-AUT is ideal for IoT edge nodes, wearable devices, and industrial sensor hubs that require a high-performance 32-bit core with floating-point acceleration at low power consumption. Its USB Full Speed interface enables direct PC connectivity for data logging and firmware update without external USB chips. The 120 MHz Cortex-M4F core with DSP extensions supports audio processing, sensor fusion, and machine learning inference on embedded platforms.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the ATSAMD51J19A - AUT datasheet?
ATSAMD51J19A - AUT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for ATSAMD51J19A - AUT?
Compatible alternatives and drop-in replacements for ATSAMD51J19A - AUT:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4F CPU, 100MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4F CPU, 100MHz, CMOS, PBGA64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4F CPU, 100MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4F CPU, 100MHz, CMOS, PQFP64
Frequently Asked Questions
What is the clock speed and core architecture of the ATSAMD51J19A-AUT, and how does that compare to Cortex-M0+ SAM D21 devices?
The ATSAMD51J19A-AUT uses an ARM Cortex-M4F core clocked at up to 120 MHz with a hardware floating-point unit and DSP instructions. Compared to the SAM D21's Cortex-M0+ at 48 MHz, this delivers approximately 2.5x more clock cycles per second and adds hardware FPU capability, making it substantially faster for computation-intensive tasks like sensor fusion and audio filtering.
How much Flash and SRAM does the ATSAMD51J19A-AUT provide, and is it sufficient for MicroPython or Arduino firmware?
The ATSAMD51J19A-AUT integrates 512KB of Flash and 192KB of SRAM, which is sufficient to run MicroPython firmware leaving approximately 200KB of Flash free for user scripts and 100KB of SRAM for runtime data. Arduino-based sketches typically consume far less, leaving ample space for complex IoT and sensor applications.
Which peripheral interfaces does the ATSAMD51J19A-AUT provide, and how many analog input channels are available?
The ATSAMD51J19A-AUT offers multiple SERCOM-configurable peripherals supporting SPI, I2C, and UART modes, a 12-bit ADC with up to 16 input channels, a 12-bit DAC, USB Full Speed, and hardware CRC. The 64-pin TQFP package exposes enough I/O pins to use several of these peripherals simultaneously in multi-sensor data acquisition designs.
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