LM3S8730-EQC50-A2

Microcontrollers Overview

The LM3S8730-EQC50-A2 is a 32-bit microcontroller from the Texas Instruments Stellaris family, built on the ARM Cortex-M3 core. It features 128 kB of flash program memory and 64 kB of data RAM, operating at a maximum clock frequency of 50 MHz. The device is housed in a 100-pin LQFP package with 38 available I/O lines. It supports an input voltage range of 2.25 V to 2.75 V and functions within an industrial temperature range of -40°C to +85°C. Connectivity includes I2C, SPI, SSI, and UART interfaces.

Microcontrollers Feature Summary

• Integrates a 10/100 MAC PHY for direct Ethernet connectivity without external transceivers
• Includes a CAN controller for robust automotive and industrial network communication
• Supports multiple serial communication protocols including I2C, SPI, SSI, and UART

Microcontrollers Applications

• Industrial automation controllers requiring Ethernet and CAN bus support
• Smart metering systems utilizing MAC PHY capabilities
• Embedded networking devices needing integrated serial communication interfaces

Microcontrollers Procurement Notes

Verify component authenticity through authorized distributors or TI directly. Confirm the specific suffix matches the required temperature grade and package variant. Check current lifecycle status as older Stellaris models may be discontinued or not recommended for new designs. Ensure ESD handling procedures are followed during installation.

Microcontrollers Selection Notes

Select this model when both Ethernet MAC/PHY and CAN bus functionality are required in a single chip. Compare pin counts and peripheral sets against alternatives like the LM3S8962 if additional I/O is needed. Verify that the 2.25V to 2.75V supply range aligns with the system power architecture. Consider the 100-LQFP package constraints for PCB layout.

Microcontrollers Part Context

This part belongs to the Stellaris LM3S series, designed for cost-sensitive embedded applications. It bridges the gap between simple MCUs and complex processors by integrating high-speed peripherals like Ethernet and CAN directly onto the die. The series emphasizes low power consumption and rich peripheral integration for connected devices.

Microcontrollers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Texas Instruments official resources for current equivalent recommendations or next-generation replacements.