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Texas Instruments LM3S1626-IQR50-A0 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S1626-IQR50-A0 Stellaris ARM Cortex-M3 MCU, 50 MHz, 128 KB Flash

MPNLM3S1626-IQR50-A0
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Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series MCU, LM3S1626-IQR50-A0, 32-Bit Single-Core, 50MHz, 128KB Flash, 32K x 8 RAM, 64-LQFP, -40°C~85°C.

$21.9938Ref. price · indicative, final on quote
Texas Instruments LM3S1626-IQR50-A0 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S1626-IQR50-A0 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~85°C(TA)
Speed50MHz
PackageTray
RAM size32K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityI²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART
Number of i (O)33
Core processorARM® Cortex®-M3
Case64-LQFP
Data convertersA/D 6x10b
Program memory size128KB (128K x 8)

Product details

What this Stellaris MCU brings to a control board

The Texas Instruments LM3S1626-IQR50-A0 is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris series, clocked at 50 MHz with 128 KB of Flash and 32K x 8 of SRAM. It is built for industrial control applications.

50 MHz core — what it handles on the factory floor

Connectivity and peripherals for a distributed I/O node

Industrial temperature range — rated for the panel

The 64-LQFP package is standard for hand-solder rework or reflow assembly; the 10x10 mm body fits comfortably on a two-layer PCB.

Frequently asked questions

What is the replacement for LM3S1626-IQR50-A0?

Texas Instruments has not published an official direct replacement for this order code. For a pin-compatible migration, you would need to evaluate other Stellaris family MCUs in the same 64-LQFP footprint, or move to a current Cortex-M4 device from TI's portfolio.

What is LM3S1626-IQR50-A0's listed speed?

The core runs at 50 MHz, which is the maximum clock frequency for this Cortex-M3 device.