Skip to main content
Log in
Texas Instruments LM3S2730-IBZ50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments LM3S2730-IBZ50-A2T ARM Cortex-M3 MCU

MPNLM3S2730-IBZ50-A2T
NRND

Texas Instruments Stellaris ARM Cortex-M3S 2000 series LM3S2730-IBZ50-A2T, 32-bit single-core MCU, 50 MHz, 128 KB Flash, 64 KB RAM, 60 I/O, CANbus/SPI/UART, 2.25–2.75 V, -40 to 85 °C, 108-LFBGA, tape & reel.

$15.8090Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S2730-IBZ50-A2T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 2000
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 size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityCANbus, IrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)60
Core processorARM® Cortex®-M3
Case108-LFBGA
Program memory size128KB (128K x 8)

Product details

NRND — planning the next move

The LM3S2730-IBZ50-A2T: Texas Instruments has flagged this order code for eventual discontinuation. For existing BOM lines, the part remains available through independent distribution while inventory lasts.

Memory and I/O — sizing the BOM fit

The Flash is sufficient for a CANopen stack plus a modest application layer; the 64 KB RAM leaves headroom for multiple packet buffers and a real-time OS kernel. The 60 I/O lines, combined with the CAN, SPI, and UART peripherals, let it serve as a central communication controller on a mixed-signal board without needing an external CPLD for GPIO expansion.

Package and supply — layout notes

Frequently asked questions

Is LM3S2730-IBZ50-A2T obsolete or NRND?

Texas Instruments has flagged it for eventual phase-out, so new designs should avoid it and existing BOM lines should plan for a replacement or last-time-buy.

What is the replacement for LM3S2730-IBZ50-A2T?

For a pin-compatible alternative within the Stellaris family, check the LM3S2730 base number variants — but verify the specific package and temperature grade against your BOM. Given the NRND status, a migration to a current TI Cortex-M4 or TM4C series part is the typical engineering path.