ATSAM4S4BA-AUR

Overview

The ATSAM4S4BA-AUR is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 120 MHz. It integrates 256 KB of Flash memory and 64 KB of SRAM within a 64-pin LQFP package. The device supports a supply voltage range of 1.62V to 3.6V and functions across an industrial temperature range of -40°C to +85°C. Connectivity features include FS USB Device, HS SDIO/SD/MMC, three SPI interfaces, two I2C controllers, I2S, two USARTs, and two UARTs. Peripheral capabilities encompass sixteen 12-bit ADC channels, two 12-bit DAC channels, four 16-bit PWM units, six 16-bit timers, and up to 47 general-purpose I/O pins.

Feature Summary

• Integrates an ARM Cortex-M4 processor with a multi-layer AHB matrix and DMA for high data rate communication.
• Provides hardware code protection including IP access prevention and secure device reconditioning.
• Offers native support for Microchip QTouch capacitive touch technology implementation.

Applications

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

Procurement Notes

Verify that the specific ordering suffix 'R' corresponds to the required tape and reel packaging configuration rather than tray packaging. Confirm that the component meets the necessary RoHS compliance standards for your region. Ensure the selected variant aligns with the required pin count and package dimensions for your PCB layout constraints.

Selection Notes

Select this model when 256 KB of program storage and 64 KB of RAM are sufficient for the application logic. Choose this part over higher-density variants if cost optimization is required while maintaining 120 MHz performance. Verify that the 64-pin LQFP footprint matches the available board space and that the 47 available I/O lines meet connectivity requirements.

Part Context

This component belongs to the SAM4S series of microcontrollers, which are designed for scalable performance and power efficiency. The series provides pin-to-pin compatibility with older SAM4N, SAM3S, SAM3N, and SAM7S devices to facilitate migration. The ATSAM4S4BA-AUR specifically utilizes the 64-pin LQFP package option within this family.

Replacement Considerations

ATSAM4S4BA-AU (Tray Packaging)

FAQ

Does the ATSAM4S4BA-AUR include cache memory?

No, the ATSAM4S4BA-AUR does not include cache memory. Cache options are typically found in higher-density models within the SAM4S series, such as those ending in 'CA' or 'DA'.

What is the maximum operating frequency of this microcontroller?

The ATSAM4S4BA-AUR operates at a maximum frequency of 120 MHz.