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Texas Instruments LM3S2948-EQC50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S2948-EQC50-A2T Texas Instruments MCU, 50 MHz

MPNLM3S2948-EQC50-A2T
NRND

Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 MCU, LM3S2948-EQC50-A2T, 50 MHz, 256 KB Flash, 64 KB RAM, 52 I/O, 100-LQFP, -40°C to +105°C.

$21.4032Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S2948-EQC50-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~105°C(TA)
Speed50MHz
PackageTape & Reel (TR)
RAM size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityCANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART
Number of i (O)52
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 8x10b
Program memory size256KB (256K x 8)

Product details

NRND — design-in window closed, existing BOMs supported

Texas Instruments lists the LM3S2948-EQC50-A2T as NRND (Not Recommended for New Designs). This means the part remains orderable for existing production but is not intended for new project starts.

50 MHz Cortex-M3 — throughput and memory budget

The ARM Cortex-M3 core runs at 50 MHz, delivering roughly 1.25 DMIPS/MHz for control-loop and protocol-stack tasks. The 52 general-purpose I/O lines and the 8-channel 10-bit ADC cover mixed-signal sensing and actuator control without external expanders. Connectivity includes CAN, I²C, SPI, SSI, UART, and IrDA — suitable for fieldbus gateways and multi-protocol interfaces.

The 100-LQFP (14x14 mm) package is a standard fine-pitch SMD footprint — reworkable with hot-air and compatible with most automated optical inspection systems.

Frequently asked questions

What is the closest pin-compatible alternative to LM3S2948-EQC50-A2T?

The Stellaris family includes other Cortex-M3 devices with similar peripheral sets, but pin compatibility varies by package and memory configuration. A parametric search against the base product number LM3S2948 is recommended for replacement evaluation.

What is the speed and memory configuration of LM3S2948-EQC50-A2T?

This combination supports mid-complexity firmware with a real-time operating system and multiple communication stacks.