ATSAM4S8BA-UUR

Overview

The ATSAM4S8BA-UUR is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at 120 MHz. It integrates 512 KB of Flash memory and 128 KB of SRAM within a 64-pin Wafer Level Chip Scale Package (WLCSP). The device supports a supply voltage range of 1.62 V to 3.6 V and includes an internal oscillator. Peripheral interfaces include FS USB Device, HS SDIO/SD/MMC, three SPI controllers, two I2C controllers, two USARTs, two UARTs, and one I2S interface.

Feature Summary

• Integrates ARM Cortex-M4 processor with Flash read accelerator and optional cache for high performance.
• Supports Microchip QTouch capacitive touch technology for buttons, sliders, and wheels.
• Features hardware code protection including IP access prevention and secure chip erase.
• Provides multi-channel DMA and distributed memory architecture for high data rate communication.

Applications

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

Procurement Notes

Verify the specific package type and suffix against official documentation before procurement. Confirm that the WLCSP variant meets your board design requirements. Check for any recent Product Change Notifications regarding assembly sites or marking changes. Ensure compatibility with existing development tools and software frameworks.

Selection Notes

Select this model when 512 KB of Flash and 128 KB of SRAM are required in a compact 64-pin footprint. Consider the WLCSP package for space-constrained designs where traditional LQFP or QFN packages are unsuitable. Verify that the 120 MHz operating frequency aligns with system timing constraints. Evaluate peripheral availability against application needs.

Part Context

This component belongs to the SAM4S series of microcontrollers from Microchip Technology. The series is designed for scalable performance and power efficiency, offering pin-to-pin compatibility with SAM4N, SAM3S, SAM3N, and SAM7S devices to facilitate migration. The SAM4S family targets applications requiring robust connectivity and analog interfacing capabilities.

Replacement Considerations

ATSAM4S8BA-AU

FAQ

What is the maximum operating frequency of the ATSAM4S8BA-UUR?

The device operates at a maximum frequency of 120 MHz.

Does the ATSAM4S8BA-UUR support capacitive touch sensing?

Yes, it offers native support for Microchip's QTouch technology.

What package type does the ATSAM4S8BA-UUR use?

It uses a 64-pin Wafer Level Chip Scale Package (WLCSP).