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Texas Instruments LM3S6618-EQC50-A2 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S6618-EQC50-A2 Stellaris ARM Cortex-M3 MCU, 50 MHz, 128 KB Flash, Obsolete

MPNLM3S6618-EQC50-A2
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 6000 series MCU, LM3S6618-EQC50-A2, 32-bit single-core at 50 MHz, 128 KB Flash, 32 KB SRAM, 100-LQFP, -40 to 105 °C.

Texas Instruments LM3S6618-EQC50-A2 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S6618-EQC50-A2 specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 6000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.25V ~ 2.75V
Operating temperature-40°C~105°C(TA)
Speed50MHz
PackageTray
RAM size32K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityEthernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)38
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 8x10b
Program memory size128KB (128K x 8)

Product details

The Texas Instruments LM3S6618-EQC50-A2 is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris 6000 series, clocked at 50 MHz with 128 KB of Flash program memory and 32 KB of SRAM.

Obsolete — sourcing reality for the LM3S6618-EQC50-A2

This part is officially obsolete per the manufacturer's lifecycle status. No last-time-buy window remains open; production has ended. No manufacturer-declared direct replacement or pin-compatible successor exists for the LM3S6618-EQC50-A2 within the Stellaris family. Any cross-reference or equivalent must be evaluated on a form-fit-function basis by the design team, considering the 50 MHz core, 128 KB Flash / 32 KB SRAM, Ethernet MAC, and 100-LQFP footprint. A migration to a current-production Cortex-M3 or Cortex-M4 part from another series or vendor will likely require a PCB respin and software port.

Core and I/O share a single 2.25 V to 2.75 V supply rail.

Frequently asked questions

Where can I buy LM3S6618-EQC50-A2?

This obsolete part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm position.

What are the key specifications of LM3S6618-EQC50-A2?

Key specs: 50 MHz ARM Cortex-M3 core, 128 KB Flash, 32 KB SRAM, Ethernet MAC, 8-channel 10-bit ADC, 38 GPIO, 100-pin LQFP, 2.25-2.75 V supply, -40 to 105 °C operating range.