ATSAM4S8BA-AUR

Overview

The ATSAM4S8BA-AUR is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 120 MHz. It features 512 KB of Flash memory and 128 KB of SRAM. The device includes an external bus interface, FS USB Device, HS SDIO/SD/MMC, three SPI channels, two I2C interfaces, two USARTs, two UARTs, sixteen 12-bit ADC channels, and two 12-bit DAC channels. It operates within a voltage range of 1.62V to 3.6V and supports temperatures from -40°C to 85°C in a 100-pin LQFP package.

Feature Summary

• Built around the ARM Cortex-M4 core with integrated Flash read accelerator and optional cache memory for increased system performance.
• Features a multi-layer bus matrix and multi-channel direct memory access (DMA) to support high data rate communication.
• Provides native support for Microchip QTouch technology for implementing capacitive touch controls.
• Integrates hardware code protection mechanisms including IP protection, secure chip erase, and CRC checks.

Applications

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

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Confirm that the 'R' suffix indicates tape and reel packaging if required by assembly processes. Ensure compatibility with existing design tools and IDEs such as Atmel Studio before finalizing procurement.

Selection Notes

Select this component when 512 KB of Flash and 128 KB of SRAM are required alongside a 100-pin interface count. Consider the 120 MHz processing speed and low power consumption characteristics for battery-operated or high-performance embedded applications. Verify peripheral requirements against the available ADC, DAC, and communication channels.

Part Context

This part belongs to the SAM4S series of microcontrollers, which extends the portfolio with higher memory densities up to 2 MB of Flash and 160 KB of SRAM. The series offers pin-to-pin compatibility with SAM4N, SAM3S, SAM3N, and SAM7S devices to facilitate migration. It is designed for scalable performance and power efficiency.

Replacement Considerations

ATSAM4S8CA-AUR