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Texas Instruments LM3S1439-EQC50-A2T — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments LM3S1439-EQC50-A2T

MPNLM3S1439-EQC50-A2T
Obsolete

Texas Instruments Stellaris ARM Cortex-M3S 1000 microcontroller, LM3S1439-EQC50-A2T, 50MHz, 96KB Flash, 32K x 8 RAM, 52 I/O, 100-LQFP, -40°C to 105°C.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S1439-EQC50-A2T specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 1000
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 size32K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART
Number of i (O)52
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 4x10b
Program memory size96KB (96K x 8)

Product details

50MHz Cortex-M3 with 96KB Flash

The LM3S1439-EQC50-A2T: The 96KB of on-chip Flash and 32K x 8 RAM give it enough headroom for a moderate control-loop or protocol-stack workload without external memory.

Industrial temperature range and supply

On-chip peripherals include brown-out detect, POR, PWM, WDT, and a 4-channel 10-bit ADC. Connectivity covers I²C, SPI, SSI, UART, IrDA, Microwire, and a QEI for quadrature encoder inputs — typical for a motor-control or sensor-hub design.

Obsolete — sourcing through surplus channels

Texas Instruments lists the LM3S1439-EQC50-A2T as obsolete.