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Texas Instruments LM3S310-IQN25-C2 — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S310-IQN25-C2 Stellaris ARM Cortex-M3 MCU, 25MHz, NRND

MPNLM3S310-IQN25-C2
NRND

Texas Instruments Stellaris ARM Cortex-M3S 300 series, LM3S310-IQN25-C2, 32-bit single-core MCU, 16KB Flash, 4KB RAM, 25MHz, 3.3V supply, 36 I/O, 48-LQFP (7x7), -40°C to 85°C, NRND.

$9.4126Ref. price · indicative, final on quote
Texas Instruments LM3S310-IQN25-C2 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S310-IQN25-C2 specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 300
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed25MHz
PackageTray
RAM size4K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityMicrowire, SPI, SSI, UART/USART
Number of i (O)36
Core processorARM® Cortex®-M3
Case48-LQFP
Program memory size16KB (16K x 8)

Product details

The LM3S310-IQN25-C2: This part carries a Not Recommended for New Designs (NRND) status. That means TI has flagged it for eventual end-of-life — no new sockets should start with it, and existing production lines need a migration plan.

25 MHz and 16 KB Flash — sizing the fit

The 25 MHz core handles UART polling, basic PWM generation, and sensor reads.

Industrial temperature and 48-LQFP footprint

The 48-LQFP package with a 7x7 mm body is hand-solderable for prototyping and rework. The 36 I/O lines give headroom for a parallel LCD bus, buttons, and LED indicators without multiplexing.

Frequently asked questions

What is the closest pin-compatible alternative to LM3S310-IQN25-C2?

No official pin-compatible replacement is listed in the record. The Stellaris family includes higher-density siblings in the same 48-LQFP footprint — for example, parts with 32 KB or 64 KB Flash and the same peripheral set — but a direct pin-for-pin swap requires checking the specific memory and feature variant against the board's layout. Without a documented cross-reference, the safest path is to review the Stellaris 300-series selection guide for a drop-in with more Flash or a higher clock.

Where to buy LM3S310-IQN25-C2?

No direct factory or authorized-distributor channel is active for NRND parts, so the independent market is the supply route.