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Texas Instruments LM3S6753-EQC50-A2 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S6753-EQC50-A2 Stellaris ARM Cortex-M3 MCU, 50MHz

MPNLM3S6753-EQC50-A2
Obsolete

Texas Instruments Stellaris ARM Cortex-M3S 6000 series LM3S6753-EQC50-A2, 32-Bit Single-Core MCU, 50MHz, 128KB Flash, 64K x 8 RAM, Ethernet, I²C, SPI, UART, 41 I/O, 100-LQFP, -40°C to 105°C.

Texas Instruments LM3S6753-EQC50-A2 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S6753-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 size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityEthernet, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART
Number of i (O)41
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 4x10b
Program memory size128KB (128K x 8)

Product details

50 MHz Cortex-M3 with integrated Ethernet

The LM3S6753-EQC50-A2: It is housed in a 100-LQFP package with 41 general-purpose I/O lines. What distinguishes this MCU is its integrated Ethernet MAC, alongside I²C, IrDA, Microwire, QEI, SPI, SSI, and UART/USART interfaces.

The LM3S6753-EQC50-A2 is classified as Obsolete by Texas Instruments. The Stellaris family has been superseded by newer Cortex-M4 and M7 families, but no direct pin-compatible replacement with identical peripheral set has been designated by TI for this exact order code.

100-LQFP package — layout and rework considerations

The 100-LQFP package has a 14x14 mm body.

Frequently asked questions

What is the replacement for LM3S6753-EQC50-A2?

Texas Instruments has not designated a direct pin-compatible replacement for this exact order code within the Stellaris family. The Stellaris architecture has been superseded by TI's Tiva C Series (Cortex-M4F) and other ARM-based families, but migrating to those requires a software port and potentially a new PCB layout. For legacy BOM support, the only option is sourcing the original LM3S6753-EQC50-A2 through the independent market.

What is LM3S6753-EQC50-A2's listed speed?

The LM3S6753-EQC50-A2 is rated for a 50 MHz core clock speed. This is the maximum CPU operating frequency for this device.