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Texas Instruments LM3S2950-EQC50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

TI LM3S2950-EQC50-A2T ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash

MPNLM3S2950-EQC50-A2T
Obsolete

Texas Instruments Stellaris LM3S2950-EQC50-A2T, 32-bit ARM Cortex-M3 MCU, 50 MHz core, 256 KB Flash, 64 KB SRAM, CANbus/I²C/SPI/SSI/UART, 2.25-2.75 V supply, -40 to 105 °C, 100-LQFP.

Texas Instruments LM3S2950-EQC50-A2T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S2950-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, POR, PWM, WDT
ConnectivityCANbus, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART
Number of i (O)60
Core processorARM® Cortex®-M3
Case100-LQFP
Program memory size256KB (256K x 8)

Product details

The Texas Instruments LM3S2950-EQC50-A2T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris® Cortex®-M3S 2000 series, clocked at 50 MHz with 256 KB of Flash program memory and 64 KB of SRAM. The part operates from 2.25 V to 2.75 V and is rated for -40 °C to 105 °C, making it suitable for industrial control, motor drive, and automotive-adjacent applications where extended temperature and CAN connectivity are required.

Texas Instruments has marked the LM3S2950-EQC50-A2T as obsolete. No official successor is listed in the Stellaris family; the Stellaris line was wound down by TI several years ago. This part is available only through the surplus and broker channel. The 100-LQFP package and 2.25-2.75 V supply make it a drop-in for existing BOMs, but new designs should consider active Cortex-M3 or M4 alternatives from TI or other vendors.

Frequently asked questions

What is the closest pin-compatible alternative to LM3S2950-EQC50-A2T?

No official pin-compatible successor is listed by TI. The Stellaris family is discontinued, so a direct drop-in replacement does not exist. For new designs, consider active Cortex-M3 or M4 parts from TI (e.g., TM4C series) or other vendors, but verify pinout and peripheral compatibility.