ATSAM4S8BA-AN

Overview

The ATSAM4S8BA-AN is a Microchip Technology ARM microcontroller within the SAM4S series, featuring an ARM Cortex-M4 core. It integrates 512 kB of Flash program memory and 128 kB of SRAM data memory. The device supports a maximum clock frequency of 120 MHz and operates with a supply voltage range of 1.62 V to 3.6 V. It provides 47 general-purpose I/O pins and includes multiple communication interfaces such as I2C, SPI, UART, USART, and USB. The component is housed in a QFN-64 package and is rated for an industrial operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates hardware security features including AES, RSA, and SHA accelerators for cryptographic operations.
• Features a low-power architecture with multiple sleep modes to optimize energy consumption during idle periods.
• Includes a comprehensive set of peripherals such as DMA controllers, PWM units, and high-resolution ADCs.

Applications

• Industrial control systems requiring secure communication protocols
• Medical devices needing robust data encryption capabilities
• Consumer electronics utilizing USB connectivity

Procurement Notes

Verify the specific suffix AN indicates the QFN-64 package and industrial temperature grade against the official Microchip datasheet. Confirm RoHS compliance status and ensure the ordering quantity matches the manufacturer's standard packaging requirements. Cross-reference the full part number with the latest product change notices to verify assembly location and material composition updates.

Selection Notes

Select this component when a balance of processing speed and power efficiency is required for embedded applications. The inclusion of hardware crypto engines makes it suitable for security-sensitive designs without significant software overhead. Ensure the system design accommodates the 3.3V I/O voltage levels and utilizes the available GPIO count for interface requirements.

Part Context

This MCU belongs to the SAM4S family, which targets cost-sensitive applications requiring moderate performance and security. It shares architectural similarities with other SAM4 variants but offers specific memory and peripheral configurations tailored for industrial and consumer markets. The QFN-64 package provides a compact footprint for space-constrained PCB layouts.

Replacement Considerations

ATSAM4S8BA-AU

FAQ

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

The maximum operating frequency is 120 MHz.

Does this microcontroller support USB connectivity?

Yes, the ATSAM4S8BA-AN includes a USB Full-Speed controller.