LM3S5C36-IQR80-A1T

Microcontrollers Overview

The LM3S5C36-IQR80-A1T is a 32-bit microcontroller based on the ARM Cortex-M3 core, belonging to the Stellaris ARM Cortex-M3S 5000 series. It features 128 KB of flash memory and 24 KB of SRAM. The device operates at a maximum clock frequency of 80 MHz and includes an integrated USB 2.0 Device interface. Connectivity options include CANbus, I2C, IrDA, LINbus, Microwire, QEI, SPI, SSI, and UART/USART. It provides 33 general-purpose I/O pins and eight 10-bit analog-to-digital converter channels. The component is housed in a 64-LQFP package with dimensions of 10x10 mm.

Microcontrollers Feature Summary

• Integrates an ARM Cortex-M3 processor core for high-performance 32-bit processing.
• Includes built-in USB 2.0 Device connectivity for communication interfaces.
• Features advanced motion control capabilities via Quadrature Encoder Input (QEI) and multiple PWM outputs.
• Supports industrial temperature ranges for reliable operation in demanding environments.

Microcontrollers Applications

• Industrial automation systems requiring robust motor control
• Embedded devices utilizing USB connectivity
• Motion control applications with encoder feedback
• Data acquisition systems using onboard ADC

Microcontrollers Procurement Notes

Verify the exact suffix against official Texas Instruments documentation to confirm package type and temperature grade. Confirm current lifecycle status as components may be discontinued or superseded by newer revisions. Ensure compatibility with existing PCB footprints for the 64-LQFP form factor before procurement.

Microcontrollers Selection Notes

Select this model when a balance of moderate memory capacity and rich peripheral integration is required. The 80 MHz speed suits applications needing efficient real-time processing without excessive power consumption. Verify that the 128 KB flash meets firmware storage needs and that the 64-pin count aligns with system I/O requirements.

Microcontrollers Part Context

This part belongs to the Stellaris family, designed for cost-sensitive embedded applications. It combines the efficiency of the Cortex-M3 architecture with extensive on-chip peripherals. The series targets markets such as consumer electronics, industrial controls, and automotive subsystems where reliability and low power are critical.

Microcontrollers Replacement Considerations

Check for direct pin-compatible upgrades within the LM3S5xxx series. Newer revisions may offer enhanced performance or updated software support libraries while maintaining functional equivalence.