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Texas Instruments LM3S6911-EBZ50-A2 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S6911-EBZ50-A2 Stellaris ARM Cortex-M3 MCU, 50 MHz

MPNLM3S6911-EBZ50-A2
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 6000 series LM3S6911-EBZ50-A2, 32-Bit Single-Core MCU, 50MHz, 256KB Flash, 64K x 8 RAM, Ethernet/I²C/SPI/UART, 108-LFBGA, -40°C~105°C.

Texas Instruments LM3S6911-EBZ50-A2 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S6911-EBZ50-A2 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
PackageTray
RAM size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityEthernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)46
Core processorARM® Cortex®-M3
Case108-LFBGA
Program memory size256KB (256K x 8)

Product details

50 MHz ARM Cortex-M3 with integrated Ethernet MAC+PHY

The LM3S6911-EBZ50-A2: The 46 GPIOs and internal oscillator reduce external BOM count for industrial control and networked embedded applications.

256 KB Flash / 64 KB SRAM — sizing the firmware and data budget

The 256 KB Flash (256K x 8) is sized for a moderate TCP/IP stack plus application code, while the 64 KB SRAM (64K x 8) holds packet buffers and runtime data. For designs that need to run a full Ethernet protocol suite with a small RTOS, this memory partition is the practical floor — you will be managing the heap and stack allocation carefully. The Flash is field-programmable, so firmware updates over Ethernet are possible with a bootloader.

The 108-LFBGA package measures 10x10 mm (supplier device package 108-BGA 10x10).

The official lifecycle status is Obsolete. New-production units are no longer available from the manufacturer. For a production BOM that requires this exact footprint and peripheral set, securing inventory now is the only path — there is no pin-compatible direct replacement from TI for this specific order code.

Frequently asked questions

What is the replacement for LM3S6911-EBZ50-A2?

Texas Instruments has not published a direct pin-compatible replacement for the LM3S6911-EBZ50-A2 within the Stellaris family. The Stellaris line has been superseded by the Tiva C Series (TM4C123x / TM4C129x), but those parts differ in package, peripheral set, and supply voltage. A board redesign is required to migrate to a current TI ARM Cortex-M4F MCU. For a drop-in replacement, the only option is sourcing the original LM3S6911-EBZ50-A2 through the surplus channel.