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Texas Instruments LM3S1J11-IBZ50-C5T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S1J11-IBZ50-C5T Texas Instruments ARM Cortex-M3 MCU

MPNLM3S1J11-IBZ50-C5T
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 microcontroller, LM3S1J11-IBZ50-C5T, 32-bit single-core, 50 MHz, 128 KB flash, 20 KB RAM, 67 I/O, 108-BGA.

Texas Instruments LM3S1J11-IBZ50-C5T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S1J11-IBZ50-C5T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 1000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.08V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed50MHz
PackageTape & Reel (TR)
RAM size20K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART
Number of i (O)67
Core processorARM® Cortex®-M3
Case108-LFBGA
Data convertersA/D 8x10b
Program memory size128KB (128K x 8)

Product details

The LM3S1J11-IBZ50-C5T: With 67 GPIOs and a connectivity set that includes I²C, SPI, UART, LIN, and IrDA, this part fits into industrial sensor hubs, motor-control interface boards, or multi-axis encoder readers where parallel I/O matters.

Industrial temp grade and package constraints

The 108-BGA package (10x10 mm) with 0.80 mm ball pitch demands a 4-layer PCB with controlled impedance for the high-speed serial lines — a 2-layer board will not fan out the inner rows.

Texas Instruments has marked the LM3S1J11-IBZ50-C5T as obsolete.

Frequently asked questions

What is the closest pin-compatible alternative to the LM3S1J11-IBZ50-C5T?

The Stellaris family shares the Cortex-M3 core and peripheral set, but each order code has a unique package and memory configuration — a direct drop-in cannot be guaranteed without a board spin.