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Texas Instruments LM3S310-IQN25-C2T — Microcontrollers & Processors (MCU / MPU / DSP)

LM3S310-IQN25-C2T Stellaris ARM Cortex-M3 MCU, 25 MHz, 16 KB Flash, 48-LQFP

MPNLM3S310-IQN25-C2T
Obsolete

Texas Instruments Stellaris® ARM® Cortex®-M3S 300 series MCU, LM3S310-IQN25-C2T, 32-bit single-core ARM Cortex-M3 at 25 MHz, 16 KB Flash, 4K x 8 RAM, 36 I/O, internal oscillator, peripherals including brown-out detect, POR, PWM, WDT, connectivity Microwire, SPI, SSI, UART/USART, 3V to 3.6V supply, -40°C to 85°C, 48-LQFP (7x7 mm).

$9.4126Ref. price · indicative, final on quote
Texas Instruments LM3S310-IQN25-C2T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM3S310-IQN25-C2T 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
PackageTape & Reel (TR)
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 Texas Instruments LM3S310-IQN25-C2T is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris 300 series. It runs at 25 MHz with 16 KB of Flash program memory and 4K x 8 of SRAM, giving it enough compute and storage for basic control, sensor interface, or serial-communication tasks in industrial or embedded systems. The 36 general-purpose I/O lines and built-in serial interfaces — Microwire, SPI, SSI, UART/USART — let it handle moderate I/O and protocol bridging without external logic.

Supply range of 3V to 3.6V lets it run from a standard 3.3V rail without an extra regulator.

Frequently asked questions

What is the replacement for LM3S310-IQN25-C2T?

No official replacement part number is listed in the lifecycle record. For a new design, consider current-generation Stellaris or TM4C Cortex-M4 MCUs from Texas Instruments, but verify pin compatibility and peripheral compatibility against your specific layout and firmware requirements.

What are the specifications of LM3S310-IQN25-C2T?

It is a 32-bit ARM Cortex-M3 MCU running at 25 MHz, with 16 KB Flash, 4K x 8 SRAM, 36 I/O, internal oscillator, and serial interfaces including Microwire, SPI, SSI, and UART/USART. Supply voltage is 3V to 3.6V, operating temperature -40°C to 85°C, in a 48-LQFP package.

What is LM3S310-IQN25-C2T's listed speed?

The core runs at 25 MHz, which sets the instruction throughput and timing budget for your application.