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Texas Instruments LM3S8970-EQC50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S8970-EQC50-A2T Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash, 100-LQFP

MPNLM3S8970-EQC50-A2T
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 8000 series, LM3S8970-EQC50-A2T, 32-bit MCU, 50 MHz, 256 KB Flash, 64 KB RAM, CANbus, Ethernet, 46 I/O, -40°C~105°C, 100-LQFP.

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

Specifications

LM3S8970-EQC50-A2T 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
PackageTape & Reel (TR)
RAM size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityCANbus, Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)46
Core processorARM® Cortex®-M3
Case100-LQFP
Program memory size256KB (256K x 8)

Product details

Stellaris LM3S8970 — 50 MHz Cortex-M3 with CAN and Ethernet

The Texas Instruments LM3S8970-EQC50-A2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris 8000 series, clocked at 50 MHz. It carries 256 KB of Flash and 64 KB of RAM, enough for a moderate control stack with Ethernet and CAN protocol handling. The peripheral set includes CANbus, Ethernet MAC+PHY, I²C, SPI, SSI, UART, and IrDA — a broad interface palette for industrial gateways, motor drives, or building automation controllers. The 100-pin LQFP package gives you 46 GPIOs, and the operating range covers -40°C to 105°C, so it fits into an enclosure with limited airflow or near a warm power stage.

Obsolete — sourcing reality for this BOM line

The 100-LQFP (14x14 mm) is a standard fine-pitch surface-mount package. It is not a BGA, so visual inspection and rework are straightforward. If your board sees condensation or high humidity, a conformal coat is advisable; the package itself is not hermetically sealed.

Frequently asked questions

Is LM3S8970-EQC50-A2T obsolete?

Yes, the LM3S8970-EQC50-A2T is obsolete. No new production is planned. Sourcing is through surplus and independent distribution channels.

What is the replacement for LM3S8970-EQC50-A2T?

There is no official TI-published replacement for this exact order code. For a pin-compatible alternate, look at other Stellaris 8000 series parts in the same 100-LQFP footprint with the same 2.25 V to 2.75 V supply — but verify the peripheral set (especially CAN and Ethernet) matches your application.

What are the detailed specifications of LM3S8970-EQC50-A2T?

It is a 32-bit ARM Cortex-M3 MCU at 50 MHz with 256 KB Flash, 64 KB RAM, 46 I/O, CAN, Ethernet, I²C, SPI, UART, and an internal oscillator. It operates from 2.25 V to 2.75 V over -40°C to 105°C in a 100-LQFP package.

Where can I buy LM3S8970-EQC50-A2T in bulk?

We source it through independent distribution. Submit an RFQ for bulk quantities — availability and pricing are confirmed per request.