ATSAM4E8CA-AUR

Overview

The ATSAM4E8CA-AUR is a 32-bit microcontroller from the Microchip SAM4E series, featuring an ARM Cortex-M4 core operating at up to 120 MHz. It integrates 512 KB of in-system programmable flash memory and 128 KB of static RAM. The device supports a supply voltage range of 1.62 V to 3.6 V and includes a full-speed USB 2.0 OTG interface. Connectivity options comprise multiple UARTs, SPIs, I2Cs, and CAN controllers. It utilizes a 100-pin LQFP package with an industrial temperature rating of -40°C to +85°C.

Feature Summary

• Integrates a high-performance ARM Cortex-M4 processor with a single-cycle multiplication unit and hardware divide capability for efficient signal processing.
• Includes a dedicated full-speed USB 2.0 On-The-Go controller with integrated PHY, supporting host, device, and peripheral modes.
• Features a comprehensive set of communication peripherals including CAN, Ethernet MAC, and multiple serial interfaces for versatile system integration.
• Provides advanced analog capabilities with dual 12-bit ADCs and two 12-bit DACs for precise data acquisition and generation.

Applications

• Industrial automation controllers requiring robust connectivity and real-time processing
• USB-enabled human-machine interface (HMI) devices and displays
• Smart energy metering systems with analog input requirements
• Medical equipment utilizing precision analog-to-digital conversion

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature grade. Ensure the component matches the required pinout and electrical specifications for the target application. Cross-reference the manufacturer's latest datasheet to validate current production status and any recent design changes or notices affecting compatibility.

Selection Notes

Select this component when a balance of processing power and rich peripheral connectivity is required within a compact form factor. The inclusion of both USB and Ethernet interfaces makes it suitable for networked applications. Consider the 120 MHz clock speed and memory size relative to software complexity and real-time constraints.

Part Context

This part belongs to the SAM4E family, designed for cost-sensitive applications needing ARM Cortex-M4 performance. It shares architectural similarities with other SAM4 variants but offers specific peripheral combinations tailored for embedded control and communication tasks. The series emphasizes low power consumption alongside high throughput.

Replacement Considerations

Consult official substitution lists for compatible parts within the SAM4E or SAM4S families. Verify pin compatibility and peripheral equivalence before replacing. Generic cross-references may not account for specific firmware or hardware differences.