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Texas Instruments LM3S2730-EQC50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S2730-EQC50-A2T Stellaris ARM Cortex-M3 MCU, 50MHz, 128KB Flash, 64KB SRAM

MPNLM3S2730-EQC50-A2T
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 series MCU, LM3S2730-EQC50-A2T, 32-bit single-core, 50MHz, 128KB Flash, 64KB SRAM, CANbus/SPI/UART, 60 I/O, 100-LQFP, -40°C to 105°C, 2.25V to 2.75V supply.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S2730-EQC50-A2T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 2000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.25V ~ 2.75V
Operating temperature-40°C~105°C(TA)
Speed50MHz
PackageTape & Reel (TR)
RAM size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityCANbus, IrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)60
Core processorARM® Cortex®-M3
Case100-LQFP
Program memory size128KB (128K x 8)

Product details

The LM3S2730-EQC50-A2T is a 32-bit ARM Cortex-M3 microcontroller from TI's Stellaris series, built on the Cortex-M3S 2000 core.

50 MHz Cortex-M3 — performance tier

The 50 MHz core speed places this MCU in the mid-range of Cortex-M3 parts — enough for real-time control loops, protocol bridging, and data logging, but not suited for heavy DSP or high-frame-rate graphics. The 128 KB Flash and 64 KB SRAM give it room for a moderate firmware stack with a CANopen or custom protocol layer, plus a few kilobytes of buffered sensor data.

Industrial temperature and connectivity

Rated from -40°C to 105°C, the LM3S2730-EQC50-A2T operates on a 2.25 V to 2.75 V supply. The internal oscillator saves an external crystal.

Frequently asked questions

What is the replacement for LM3S2730-EQC50-A2T?

No official successor part number has been declared by TI for the LM3S2730-EQC50-A2T. The TM4C123GH6PM is a different architecture (Cortex-M4F) and is not pin-compatible or software-compatible without redesign.

Where to buy LM3S2730-EQC50-A2T?

This obsolete part is sourced through independent distribution channels. We quote it to order against an RFQ; availability and current pricing are confirmed at quote time.

What is LM3S2730-EQC50-A2T's listed speed?

The LM3S2730-EQC50-A2T is rated for a 50 MHz core speed on the ARM Cortex-M3.