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Texas Instruments LM3S618-EQN50-C2 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S618-EQN50-C2 Stellaris ARM Cortex-M3 MCU, 50 MHz, 32 KB Flash

MPNLM3S618-EQN50-C2
NRND

Texas Instruments Stellaris® ARM® Cortex®-M3S 600 series LM3S618-EQN50-C2, 32-Bit Single-Core MCU, 50 MHz, 32KB Flash, 8K x 8 RAM, 30 I/O, 48-LQFP, -40°C~105°C.

$5.5794Ref. price · indicative, final on quote
Texas Instruments LM3S618-EQN50-C2 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S618-EQN50-C2 specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 600
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 3.6V
Operating temperature-40°C~105°C(TA)
Speed50MHz
PackageTray
RAM size8K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityMicrowire, QEI, SPI, SSI, UART/USART
Number of i (O)30
Core processorARM® Cortex®-M3
Case48-LQFP
Data convertersA/D 6x10b
Program memory size32KB (32K x 8)

Product details

The LM3S618-EQN50-C2: 32-bit ARM Cortex-M3 MCU from the Stellaris® series, clocked at 50 MHz with 32 KB Flash and 8K x 8 SRAM.

NRND — not for new designs

Sourcing reality for the LM3S618-EQN50-C2

Because this MCU is NRND, the standard authorized-distributor pipeline is winding down. If you are filling a BOM line for a legacy product, we can secure the quantity; if you are prototyping, you should evaluate a pin-compatible successor first.

Package and footprint — 48-LQFP 7x7 mm

The LM3S618-EQN50-C2 comes in a 48-lead LQFP with a 7x7 mm body. That is a common footprint across the Stellaris family, which means a board laid out for this part can often accept a higher-density sibling with the same pinout.

Frequently asked questions

Is LM3S618-EQN50-C2 still available for new designs?

No — TI has marked this part NRND (Not Recommended for New Designs). It is not suitable for new product development; you should select a replacement for any fresh BOM.

What is the best replacement for LM3S618-EQN50-C2?

TI has not published a direct pin-compatible successor for the LM3S618-EQN50-C2. Within the Stellaris family, a higher-density part in the same 48-LQFP footprint (such as the LM3S628 or LM3S638) may serve as a functional upgrade, but verify pin compatibility against the datasheet before committing the layout.

What is LM3S618-EQN50-C2's listed speed?

The core runs at 50 MHz, which is the maximum clock for this ARM Cortex-M3 device in the Stellaris 600 series.

What package is LM3S618-EQN50-C2 in?

It is supplied in a 48-lead LQFP with a 7x7 mm body, surface-mount package.