The LM3S1J11-IQC50-C3T: The 50 MHz Cortex-M3 gives you a single-cycle multiply and a 3-stage pipeline, enough for real-time control loops and moderate protocol stacks. If you are porting code from a smaller Stellaris part, the 67 I/O in a 100-LQFP gives you headroom for parallel LCD or multiple encoder inputs.
LM3S1J11-IQC50-C3T Stellaris ARM Cortex-M3 MCU, 50 MHz
MPNLM3S1J11-IQC50-C3T
Obsolete
Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series LM3S1J11-IQC50-C3T, 32-bit MCU, 50 MHz, 128 KB Flash, 20K x 8 RAM, 67 I/O, 100-LQFP, -40°C to 85°C.
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)) | 1.08V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 50MHz |
| Package | Tape & Reel (TR) |
| RAM size | 20K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 67 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 128KB (128K x 8) |
Product details
Frequently asked questions
Where can I buy LM3S1J11-IQC50-C3T available via RFQ confirmation?
This obsolete part is not stocked in volume by the factory. Contact us with your quantity and target price; we will confirm availability and current pricing at quote time.
Is the LM3S1J11-IQC50-C3T directly pin-compatible with other Stellaris parts?
The 100-LQFP package is shared across several Stellaris LM3S variants, but pin compatibility depends on the specific peripheral mix and GPIO mapping. Cross-reference the datasheet pinout for your target replacement against the LM3S1J11 before assuming a drop-in swap. The evidence does not list an official cross-reference.