ATSAMG55J19A-MU

Overview

The ATSAMG55J19A-MU is a 32-bit microcontroller based on the ARM Cortex-M4 processor with an integrated Floating Point Unit (FPU). It operates at a maximum frequency of 120 MHz and includes 512 Kbytes of Flash memory and up to 176 Kbytes of SRAM. The device features 48 programmable I/O lines, crystal-less USB 2.0 support, and eight flexible communication units including USART, SPI, and TWI interfaces. It operates within a voltage range of 1.62V to 3.6V and is housed in a 64-lead QFN package.

Feature Summary

• High-performance processing capability provided by the ARM Cortex-M4 core with FPU and DSP instructions.
• Integrated crystal-less USB 2.0 Device and Host OHCI controller with an on-chip transceiver.
• Rich peripheral set featuring multiple communication interfaces, timers, and an 8-channel 12-bit ADC.
• Flexible clock system supporting various low-power modes including Sleep, Wait, and Backup.

Applications

• Consumer electronics devices
• Industrial control systems
• PC peripherals

Procurement Notes

Verify the specific ordering code ATSAMG55J19A-MU against official Microchip documentation to confirm the QFN64 package and industrial temperature rating. Ensure compatibility with design requirements for the 1.62V to 3.6V operating voltage range and 120 MHz maximum speed before finalizing procurement.

Selection Notes

Select this component when a balance of high performance and low power consumption is required for general-purpose applications. The inclusion of an FPU makes it suitable for signal processing tasks, while the extensive peripheral set supports diverse connectivity needs without external components.

Part Context

This part belongs to the SAM G55 series of Flash microcontrollers from Microchip Technology. The series is designed to offer high processing power combined with small package options and a rich peripheral set, targeting applications that require efficient data handling and connectivity.

Replacement Considerations

Consult official Microchip resources for verified substitute part numbers. Cross-reference specifications such as package type, memory size, and pinout compatibility to ensure functional equivalence.

FAQ

What is the maximum operating frequency of the ATSAMG55J19A-MU?

The device operates at a maximum speed of 120 MHz.

Does the ATSAMG55J19A-MU include a Floating Point Unit?

Yes, the ARM Cortex-M4 core includes an integrated Floating Point Unit (FPU).

What types of communication interfaces are available on this microcontroller?

It features eight flexible communication units supporting USART, SPI, and TWI interfaces, along with USB 2.0 capabilities.