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Texas Instruments LM3S8971-EQC50-A2 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S8971-EQC50-A2 Stellaris ARM Cortex-M3 MCU, 50MHz

MPNLM3S8971-EQC50-A2
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 8000 series MCU, LM3S8971-EQC50-A2, 32-bit single-core, 50 MHz, 256 KB Flash, 64K x 8 RAM, 38 I/O, Ethernet + CAN, 100-LQFP, -40 to 105°C.

Texas Instruments LM3S8971-EQC50-A2 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S8971-EQC50-A2 specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 8000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.25V ~ 2.75V
Operating temperature-40°C~105°C(TA)
Speed50MHz
PackageTray
RAM size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityCANbus, Ethernet, IrDA, Microwire, QEI, SPI, SSI, UART/USART
Number of i (O)38
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 8x10b
Program memory size256KB (256K x 8)

Product details

The LM3S8971-EQC50-A2 is a 32-bit ARM Cortex-M3 microcontroller from the Texas Instruments Stellaris 8000 series, clocked at 50 MHz with 256 KB of Flash and 64K x 8 of RAM. It integrates Ethernet and CANbus alongside UART, SPI, SSI, I2C, and QEI, making it a fit for industrial gateways, motor-control nodes, and building-automation controllers that need both wired networking and real-time fieldbus. The 100-LQFP package with 38 GPIOs and an 8-channel 10-bit ADC keeps the BOM compact for mid-complexity embedded designs.

Texas Instruments has marked the LM3S8971-EQC50-A2 as Obsolete.

Frequently asked questions

What is the replacement or equivalent for LM3S8971-EQC50-A2?

No official replacement order code is recorded in the lifecycle data for the LM3S8971-EQC50-A2. For a pin-compatible alternative within the Stellaris family, cross-reference the base product number LM3S8971; a design migration to a current TI Cortex-M4 or TM4C series part may be required for new builds.

Does LM3S8971-EQC50-A2 support Ethernet and CAN simultaneously?

Yes, the LM3S8971-EQC50-A2 includes both a 10/100 Ethernet MAC and a CAN 2.0B controller in its peripheral set, and they can operate concurrently without pin conflict.

What is LM3S8971-EQC50-A2's listed speed?

The LM3S8971-EQC50-A2 is rated for a 50 MHz core speed.

How do I get current pricing and availability for LM3S8971-EQC50-A2?

Pricing and availability for the LM3S8971-EQC50-A2 are confirmed at quote time through our sourcing desk. Submit an RFQ against this order code for a current quote — no stock or price figures are published for this obsolete part.