ATSAMD51J19A-UUT

Overview

The ATSAMD51J19A-UUT is a 32-bit ARM Cortex-M4F microcontroller from the SAM D51 family, operating at a maximum clock frequency of 120 MHz. It integrates 512 kB of Flash program memory and 192 kB of SRAM data RAM. The device features a 12-bit ADC with 24 channels and dual 12-bit DACs. It supports multiple communication interfaces including I2C, SPI, USART, LIN, IrDA, QSPI, and USB Full Speed. Operating within a voltage range of 1.71 V to 3.6 V, it is housed in a 64-pin WLCSP package and rated for industrial temperatures between -40°C and +85°C.

Feature Summary

• Integrated ARM Cortex-M4F core with hardware floating-point unit for efficient digital signal processing.
• Comprehensive analog subsystem featuring 24-channel 12-bit ADC and two 12-bit DACs for precise signal conditioning.
• Supports advanced connectivity via USB Full Speed, QSPI for external memory expansion, and standard serial protocols.
• Includes dedicated peripherals such as DMA controller, I2S interface, and multiple PWM channels for motor control.

Applications

• Industrial automation controllers requiring robust analog input processing
• USB-enabled embedded devices and human-machine interfaces
• Motor control applications utilizing PWM and I2S audio feedback
• Data acquisition systems leveraging high-channel-count ADC capabilities

Procurement Notes

Verify the specific suffix 'UUT' against official Microchip documentation to confirm the WLCSP-64 packaging and tape-and-reel delivery format. Ensure compatibility with moisture sensitivity level requirements during assembly. Cross-reference the part number with current datasheets to validate pinout configurations and electrical characteristics prior to procurement.

Selection Notes

Select this component when a balance of processing power and analog capability is required in a compact footprint. The 120 MHz Cortex-M4F core suits complex algorithm execution, while the extensive peripheral set reduces external component count. Consider the WLCSP package constraints for PCB layout density and thermal management compared to larger TQFP alternatives.

Part Context

This microcontroller belongs to the SAM D51 series, designed for cost-sensitive applications needing ARM Cortex-M4 performance. It shares architectural similarities with the ATSAME51 but lacks CAN bus support. The J19 variant specifically denotes the 512 kB Flash and 192 kB RAM configuration within the 64-pin form factor.

Replacement Considerations

ATSAMD51J19A-AU offers identical specifications in a TQFP-64 package. ATSAMD51N19A provides more I/O pins in a 100-TQFP package. ATSAME51J19A includes CAN bus functionality but requires verification of software compatibility.