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Texas Instruments LM3S6950-EQC50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S6950-EQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz

MPNLM3S6950-EQC50-A2T
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 6000 series MCU LM3S6950-EQC50-A2T, 32-bit single-core, 50 MHz, 256 KB Flash, 64K x 8 SRAM, Ethernet MAC, 46 I/O, -40°C to 105°C, 100-LQFP.

Texas Instruments LM3S6950-EQC50-A2T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S6950-EQC50-A2T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 6000
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
ConnectivityEthernet, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART
Number of i (O)46
Core processorARM® Cortex®-M3
Case100-LQFP
Program memory size256KB (256K x 8)

Product details

What this Stellaris MCU brings to a control board

The Texas Instruments LM3S6950-EQC50-A2T is a Stellaris® ARM® Cortex®-M3 MCU from the 6000 series, built around a 32-bit single-core processor running at 50 MHz. The 100-LQFP package (14x14 mm) keeps the board layout manageable for a two-layer design.

TI no longer manufactures it, and there is no factory last-time-buy window open. New designs should not target it; existing BOM lines must be filled through the independent surplus and broker channel.

For volume requirements or a last-production-run buy, a broker quote with verified date codes and traceability is the standard procurement path.

Frequently asked questions

Is LM3S6950-EQC50-A2T obsolete?

Yes, the LM3S6950-EQC50-A2T carries an Obsolete lifecycle status. TI no longer produces it, and no factory last-time-buy window remains open. Existing inventory is available through the independent surplus and broker channel only.

What is the replacement for LM3S6950-EQC50-A2T?

No official pin-compatible replacement is listed in the product records. A board redesign targeting a current-production Cortex-M3 or Cortex-M4 MCU with Ethernet MAC — such as the TM4C129 series from TI — is the typical migration path.