ATSAM4S4BA-UU

Overview

The ATSAM4S4BA-UU is a 32-bit microcontroller from the SAM4S series, built on an ARM Cortex-M4 core operating at 120 MHz. It integrates 256 KB of Flash memory and 64 KB of SRAM within a 64-pin QFN package. The device supports a supply voltage range of 1.62V to 3.6V and operates across a temperature range of -40°C to 85°C.

Feature Summary

• Integrates an ARM Cortex-M4 processor with a multi-layer AHB matrix and DMA for high data rate communication.
• Includes hardware code protection features such as IP access prevention and memory integrity checks via CRC.
• Provides native support for Microchip QTouch capacitive touch technology for user interface implementation.

Applications

• Consumer goods and toys
• Industrial control systems
• Metering devices
• Medical equipment
• Test and measurement instruments

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Confirm that the 'UU' suffix corresponds to the intended 64-pin QFN variant and industrial temperature range before finalizing procurement specifications.

Selection Notes

Select this component when a balance of performance and power efficiency is required for embedded applications. Consider the pin-to-pin compatibility with SAM4N, SAM3S, and SAM7S families if migration from previous generations is planned.

Part Context

This part belongs to the SAM4S family, which offers scalable memory densities up to 2 MB Flash and 160 KB SRAM. The series is designed to provide increased performance and power efficiency while maintaining compatibility with existing Microchip MCU portfolios.

Replacement Considerations

ATSAM4S4BA-AU (64-pin LQFP)

FAQ

Does the ATSAM4S4BA-UU support Microchip QTouch?

Yes, the SAM4S series provides native support for Microchip's QTouch technology, allowing for the implementation of buttons, sliders, and wheels.

What is the maximum operating frequency of the ATSAM4S4BA-UU?

The device operates at a maximum frequency of 120 MHz.