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Texas Instruments LM3S2730-IQC50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S2730-IQC50-A2T Stellaris Cortex-M3 MCU, 50 MHz, 128 KB Flash

MPNLM3S2730-IQC50-A2T
NRND

Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 series MCU, LM3S2730-IQC50-A2T, 32-Bit Single-Core, 50 MHz, 128KB (128K x 8) FLASH, 64K x 8 RAM, 60 I/O, CANbus/IrDA/SPI/SSI/UART, -40°C~85°C, 100-LQFP (14x14), 2.25V~2.75V supply.

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

Specifications

LM3S2730-IQC50-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
Case100-LQFP
Program memory size128KB (128K x 8)

Product details

The Texas Instruments LM3S2730-IQC50-A2T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris® 2000 series, clocked at 50 MHz with 128 KB of Flash program memory and 64 KB of RAM.

128 KB Flash, 64 KB RAM — sizing the firmware

128 KB of Flash holds a moderate application: a CANopen master stack plus a few hundred lines of application code fits comfortably. The 64 KB RAM is split between code data and the 60 I/O bit-banding region; if you plan to buffer large CAN message queues or run a TCP/IP stack over an external PHY, watch the heap margin. The part has no external memory interface — everything stays on-chip.

Frequently asked questions

What is the closest pin-compatible alternative to LM3S2730-IQC50-A2T?

The Stellaris family includes several 100-LQFP siblings with the same footprint and supply voltage — for example, the LM3S2739 or LM3S2965. Check the specific peripheral set and Flash/RAM sizes against your firmware requirements before swapping.

What is LM3S2730-IQC50-A2T's maximum operating temperature?

The industrial temperature grade covers -40 °C to 85 °C ambient. That is the operating range, not storage — storage exceeds this limit.

Does LM3S2730-IQC50-A2T have CAN interface?

Yes — the connectivity set includes CANbus alongside IrDA, Microwire, SPI, SSI, and UART/USART. The CAN controller supports standard 2.0A/B frames.