Texas Instruments LM3S6950-IBZ50-A2T, Stellaris ARM Cortex-M3S 6000 series, 32-bit single-core MCU, 50MHz, 256KB Flash, 64KB RAM, Ethernet, I2C, SPI, SSI, UART, 108-LFBGA (10x10), -40°C to 85°C, 2.25V to 2.75V supply, 46 I/O.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 6000 |
| 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 | 64K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | Ethernet, I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART |
| Number of i (O) | 46 |
| Core processor | ARM® Cortex®-M3 |
| Case | 108-LFBGA |
| Program memory size | 256KB (256K x 8) |
The Texas Instruments LM3S6950-IBZ50-A2T is a 32-bit ARM Cortex-M3 MCU from the Stellaris® ARM® Cortex®-M3S 6000 series, clocked at 50 MHz with 256 KB of Flash program memory and 64 KB of RAM. The 108-LFBGA package (10x10 mm) with 46 I/O lines supports compact PCB layouts in factory automation and building management equipment.
The 50 MHz core speed runs a lightweight TCP/IP stack alongside peripheral polling.
TI does not list a direct pin-compatible successor. For new designs, migrate to a current Stellaris or Tiva-C series MCU; verify peripheral compatibility and package footprint against the original BOM.
The LM3S6965 runs at 60 MHz versus 50 MHz on the LM3S6950, with the same 256 KB Flash, 64 KB RAM, and 108-BGA package. The extra 10 MHz provides additional headroom for Ethernet protocol processing.
32-bit ARM Cortex-M3 core at 50 MHz, 256 KB Flash, 64 KB RAM, Ethernet MAC+PHY, I²C, SPI, SSI, UART, IrDA, Microwire, QEI, 46 I/O, 2.25 V to 2.75 V supply, -40°C to 85°C, 108-LFBGA (10x10 mm).