ATSAMD51J19A-AF

Overview

The ATSAMD51J19A-AF is a 32-bit ARM Cortex-M4F microcontroller from the SAM D51 family, manufactured by Microchip Technology. It features a maximum clock frequency of 120 MHz and includes 512 kB of Flash program memory and 192 kB of SRAM data RAM. The device provides 51 general-purpose I/O pins and operates within a supply voltage range of 1.71 V to 3.6 V. It supports an industrial operating temperature range from -40°C to +85°C. Key peripherals include a 12-bit ADC with 24 channels, two 12-bit DACs, and multiple communication interfaces such as SPI, I2C, USART, LIN, and USB.

Feature Summary

• Integrated ARM Cortex-M4F core with hardware floating-point unit for efficient digital signal processing.
• Supports machine learning inference capabilities through optimized peripheral configurations.
• Includes comprehensive connectivity options with built-in support for CAN, LINbus, and high-speed serial interfaces.

Applications

• Industrial automation controllers requiring robust real-time processing.
• Internet of Things (IoT) nodes utilizing wireless co-processors.
• Smart energy metering systems compliant with AEC-Q100 standards.
• Consumer electronics featuring high-resolution display drivers.

Procurement Notes

Verify the specific suffix 'AF' against official Microchip documentation to confirm package type and temperature grade, as standard listings often default to 'AU'. Ensure compatibility with required interface protocols before integration. Cross-reference silicon errata for the SAM D5x/E5x family to address known hardware revisions. Confirm RoHS compliance status for environmental regulations in target markets.

Selection Notes

Select this component when a balance of high-performance computing and extensive analog input capability is required. The 120 MHz speed suits complex control loops, while the 24-channel ADC facilitates multi-sensor data acquisition. Consider the 512 kB Flash size for applications storing significant firmware or lookup tables. Evaluate power consumption profiles against the 1.71 V minimum supply requirement for battery-operated designs.

Part Context

This microcontroller belongs to the SAM D51 series, designed for applications demanding high performance and low power consumption. It integrates advanced peripherals suitable for motor control and sensor fusion. The device leverages the Arm Cortex-M4 architecture to deliver efficient code execution. It serves as a central processing unit in embedded systems requiring reliable data handling and communication.

Replacement Considerations

ATSAMD51J19A-AU

FAQ

Does the ATSAMD51J19A-AF include a hardware floating-point unit?

Yes, it utilizes the ARM Cortex-M4F core which includes a single-precision floating-point unit for accelerated mathematical operations.

What is the maximum number of analog input channels available?

The device provides up to 24 channels for its 12-bit Analog-to-Digital Converter (ADC).