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Texas Instruments LM3S8738-EQC50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S8738-EQC50-A2T Stellaris ARM Cortex-M3 MCU, 50MHz

MPNLM3S8738-EQC50-A2T
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 8000 series MCU, LM3S8738-EQC50-A2T, 32-bit single-core, 50MHz, 128KB Flash, 64K x 8 RAM, CANbus, Ethernet, I²C, SPI, UART, 38 I/O, 100-LQFP, -40°C to 105°C.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S8738-EQC50-A2T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 8000
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.25V ~ 2.75V
Operating temperature-40°C~105°C(TA)
Speed50MHz
PackageTape & Reel (TR)
RAM size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityCANbus, Ethernet, 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

50 MHz Cortex-M3 with Ethernet and CAN — what it was built for

It was designed for industrial and building-control applications where both Ethernet and CANbus connectivity are needed on a single chip — a combination that still stands out even among newer MCUs. The 8-channel 10-bit ADC handles analog inputs.

That means it is no longer in production and no last-time-buy window remains open.

38 I/O and the 100-LQFP footprint — board-fit check

With 38 general-purpose I/O lines in a 100-pin LQFP package (14x14 mm body), this MCU offers a moderate pin count for a 100-pin part — many of the pins are tied to the rich peripheral set.

Frequently asked questions

Is LM3S8738-EQC50-A2T obsolete?

It is no longer in production and there is no active last-time-buy window. The only sourcing channel is the surplus and independent broker market. We can quote it against an RFQ through our network.

What is the replacement for LM3S8738-EQC50-A2T?

Texas Instruments has not published an official direct replacement for this specific order code. Without an official cross-reference, any substitution requires a full pin-to-pin and software compatibility review.