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Texas Instruments LM3S628-EQN50-C2 — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments LM3S628-EQN50-C2 ARM Cortex-M3 MCU, 50MHz

MPNLM3S628-EQN50-C2
Obsolete

Texas Instruments LM3S628-EQN50-C2, Stellaris ARM Cortex-M3S 600 series 32-bit MCU, 50MHz, 32KB Flash, 8KB RAM, 28 I/O, 3V–3.6V supply, -40°C to 105°C, 48-LQFP package, Tray.

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

Specifications

LM3S628-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
ConnectivityI²C, Microwire, SPI, SSI, UART/USART
Number of i (O)28
Core processorARM® Cortex®-M3
Case48-LQFP
Data convertersA/D 8x10b
Program memory size32KB (32K x 8)

Product details

The LM3S628-EQN50-C2: The connectivity block covers I²C, SPI, SSI, Microwire, and UART/USART, so it can talk to common sensors, serial memories, and display modules. An 8-channel 10-bit ADC handles analog inputs like potentiometers, thermistors, or current-sense resistors without an external converter.

Texas Instruments lists the LM3S628-EQN50-C2 as obsolete.

Frequently asked questions

Is LM3S628-EQN50-C2 obsolete?

Yes, the LM3S628-EQN50-C2 is listed as obsolete by Texas Instruments. It is no longer in production and must be sourced through independent distribution on the surplus market.

What is the replacement for LM3S628-EQN50-C2?

TI has moved to newer Cortex-M4 and M7 families, but a pin-compatible drop-in from the Stellaris line does not exist. A board redesign is needed for a migration path.