Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 series MCU, LM3S2950-IQC50-A2, 32-Bit Single-Core, 50MHz, 256KB Flash, 64K x 8 RAM, 60 I/O, CAN/I²C/SPI/UART, -40°C~85°C, 100-LQFP.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 2000 |
| 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 | Tray |
| RAM size | 64K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART |
| Number of i (O) | 60 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Program memory size | 256KB (256K x 8) |
The LM3S2950-IQC50-A2: Texas Instruments Stellaris ARM Cortex-M3 MCU at 50 MHz with 256 KB Flash and 64K x 8 SRAM. 32-bit single-core in 100-LQFP (14x14 mm), -40°C to 85°C.
60 I/O lines and CAN, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART connectivity.
No official successor order code is listed in the available records. A cross-reference search against the LM3S2950 base product number is recommended to identify a pin-compatible or functionally equivalent Stellaris family device for dual-sourcing or replacement planning.
It uses a 32-bit ARM Cortex-M3 core, single-core, part of the Texas Instruments Stellaris ARM Cortex-M3S 2000 series.
Key specs: 50 MHz core speed, 256 KB Flash, 64K x 8 SRAM, 60 I/O, operating temperature -40°C to 85°C, supply voltage 2.25 V to 2.75 V, 100-LQFP package (14x14 mm).
The base product number LM3S2950 suggests pin-compatibility across the LM3S2950 family variants, but the specific IQC50-A2 suffix indicates a particular temperature grade and speed grade. Verify pinout against the target variant's datasheet before committing the layout.