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Texas Instruments LM3S1512-IQC25-A2 — Microcontrollers & Processors (MCU / MPU / DSP)
Texas Instruments

LM3S1512-IQC25-A2 Stellaris ARM Cortex-M3 MCU, 25 MHz, 96 KB Flash

MPNLM3S1512-IQC25-A2
NRND

Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series, LM3S1512-IQC25-A2, 32-bit Single-Core MCU, 25MHz, 96KB Flash, 64K x 8 RAM, 58 I/O, 100-LQFP, -40°C~85°C.

$27.4768Ref. price · indicative, final on quote
LM3S1512-IQC25-A2 datasheet
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Specifications

LM3S1512-IQC25-A2 Technical Specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 1000
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.25V ~ 2.75V
Operating temperature-40°C~85°C(TA)
Speed25MHz
PackageTray
RAM size64K 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)58
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 2x10b
Program memory size96KB (96K x 8)

Product details

What this part is and where it fits

The LM3S1512-IQC25-A2 is a 32-bit ARM Cortex-M3 MCU from TI's Stellaris series, clocked at 25 MHz with 96 KB of Flash and 64 KB of RAM. It packs 58 general-purpose I/O and a full set of serial interfaces — I²C, SPI, UART, IrDA, Microwire, QEI, and SSI — making it a natural fit for motor-control, sensor-fusion, and industrial-communication nodes that need a single-core controller with moderate memory and a wide peripheral set. The industrial temperature range (-40°C to 85°C) suits factory-floor and outdoor telecom enclosures.

Memory and peripheral budget

96 KB of Flash and 64 KB of RAM are enough for a single control loop, a Modbus RTU stack, and a modest data buffer. The two 10-bit ADC channels handle basic analog sensing — current, temperature, or potentiometer feedback. Brown-out detect, POR, PWM, and a watchdog timer are on-chip, reducing external supervisor IC count.

Frequently asked questions

What are the key specifications of LM3S1512-IQC25-A2?

The LM3S1512 runs a 32-bit ARM Cortex-M3 core at 25 MHz, with 96 KB Flash, 64 KB RAM, 58 I/O, two 10-bit ADC channels, and serial interfaces including I²C, SPI, UART, and QEI. It operates from -40°C to 85°C on a 2.25 V to 2.75 V supply.

Is LM3S1512-IQC25-A2 compatible with LM3S1511?

The LM3S1511 is a close sibling in the same 100-LQFP package and shares the same core and peripheral set, but its Flash and RAM sizes differ. Verify the memory map and any feature delta before treating it as a drop-in replacement.