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Texas Instruments LM3S1332-IBZ50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments LM3S1332-IBZ50-A2T ARM Cortex-M3 MCU

MPNLM3S1332-IBZ50-A2T
NRND

Texas Instruments Stellaris ARM Cortex-M3S 1000 series, LM3S1332-IBZ50-A2T, 32-bit single-core MCU, 50MHz, 96KB Flash, 16KB RAM, 57 I/O, 108-LFBGA, 2.25–2.75V supply, industrial temp -40°C to 85°C, NRND.

$15.7270Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S1332-IBZ50-A2T 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
PackageTape & Reel (TR)
RAM size16K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityIrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)57
Core processorARM® Cortex®-M3
Case108-LFBGA
Data convertersA/D 3x10b
Program memory size96KB (96K x 8)

Product details

50 MHz Cortex-M3 with 96 KB Flash — what this buys the design

That means Texas Instruments has flagged it for eventual discontinuation — no new design should start with this MCU. For existing BOM lines already using the LM3S1332-IBZ50-A2T, the part is still available through independent distribution and surplus channels.

Package and temperature grade — board-level fit

The 108-LFBGA package (supplier device package 108-BGA 10x10) is a fine-pitch BGA requiring controlled reflow profiling and X-ray inspection for solder-joint verification.

Frequently asked questions

Is LM3S1332-IBZ50-A2T obsolete?

It is not yet discontinued, but Texas Instruments has signaled it will eventually be phased out. Existing BOM lines can still source it through surplus and broker channels.

Does LM3S1332-IBZ50-A2T have an internal oscillator?

Yes, the LM3S1332-IBZ50-A2T includes an internal oscillator, so no external crystal is required for basic clocking.