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Texas Instruments LM3S1911-IBZ50-A2 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S1911-IBZ50-A2 Stellaris ARM Cortex-M3 MCU, 50MHz, 256KB Flash

MPNLM3S1911-IBZ50-A2
NRND

Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series MCU, LM3S1911-IBZ50-A2, 32-bit single-core at 50MHz, 256KB Flash, 64K x 8 SRAM, 60 GPIO, I²C/SPI/UART/USART, 108-LFBGA, -40 to 85°C.

$20.5929Ref. price · indicative, final on quote
Texas Instruments LM3S1911-IBZ50-A2 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S1911-IBZ50-A2 specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 1000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.25V ~ 2.75V
Operating temperature-40°C~85°C(TA)
Speed50MHz
PackageTray
RAM size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, IrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)60
Core processorARM® Cortex®-M3
Case108-LFBGA
Program memory size256KB (256K x 8)

Product details

The LM3S1911-IBZ50-A2 is a Texas Instruments Stellaris ARM Cortex-M3 MCU — 32-bit single-core at 50 MHz, with 256 KB Flash and 64 KB SRAM. The part is rated for industrial temperature range (-40 to 85 °C) and comes in a 108-ball BGA (10x10 mm). This was a mid-range Stellaris part for control and connectivity applications in factory automation, building control, and sensor hubs.

There is no official L* successor listed in the evidence. For new designs, look at the current TI Cortex-M4 or M33 portfolio; for existing BOMs, secure last-time-buy quantities or plan a pin-compatible migration.

Frequently asked questions

What is the LM3S1911-IBZ50-A2's core speed?

The ARM Cortex-M3 core runs at 50 MHz, delivering roughly 62.5 DMIPS peak throughput.