The LM3S1150-IQC50-A2T: Product status is NRND.
Peripheral set for sensor and motor interfaces
The IrDA and Microwire support add legacy serial compatibility for optical links or old sensor buses.
Texas Instruments LM3S1150-IQC50-A2T ARM Cortex-M3 MCU
MPNLM3S1150-IQC50-A2T
NRND
Texas Instruments Stellaris LM3S1150 ARM Cortex-M3 MCU, 50 MHz, 64KB Flash, 16KB RAM, 52 I/O, I²C/SPI/UART/QEI/PWM, 2.25–2.75 V supply, -40°C to 85°C, 100-LQFP.
$20.4376Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 1000 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.25V ~ 2.75V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 50MHz |
| Package | Tape & Reel (TR) |
| RAM size | 16K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART |
| Number of i (O) | 52 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Program memory size | 64KB (64K x 8) |
Product details
Frequently asked questions
Is the LM3S1150-IQC50-A2T NRND or obsolete?
It is still available for existing production and repair orders, but it is not recommended for new designs. A future EOL transition is expected.
What chip can replace the LM3S1150-IQC50-A2T?
A pin-compatible replacement within the Stellaris LM3S1000 series — sharing the same 100-LQFP footprint and peripheral set — can serve as a drop-in swap with a firmware recompile. Check the current lifecycle status of the candidate part before qualifying it into a new BOM.
What is the clock speed of the LM3S1150-IQC50-A2T?
The core runs at 50 MHz, which is enough for real-time control loops, protocol parsing, and sensor fusion in industrial applications.