Texas Instruments Stellaris ARM Cortex-M3S 2000 series MCU, LM3S2965-IBZ50-A2T, 32-bit single-core at 50 MHz, 256KB Flash, 64KB RAM, 56 I/O, CAN, I²C, SPI, UART, 4x10-bit ADC, 108-BGA, -40°C to 85°C.
| 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 | Tape & Reel (TR) |
| 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) | 56 |
| Core processor | ARM® Cortex®-M3 |
| Case | 108-LFBGA |
| Data converters | A/D 4x10b |
| Program memory size | 256KB (256K x 8) |
The LM3S2965-IBZ50-A2T is a Texas Instruments Stellaris ARM Cortex-M3 MCU from the M3S 2000 series, built around a 32-bit single-core processor clocked at 50 MHz.
The 50 MHz Cortex-M3 core and 256 KB Flash support real-time control loops and CAN message handling. The 4x10-bit ADC covers basic analog sensing without an external converter.
No official pin-compatible successor is listed from Texas Instruments for this exact order code. For a drop-in replacement, you would need to evaluate other Stellaris M3S 2000 series parts with the same 108-BGA footprint and similar peripheral set — but most are also NRND or EOL.
The core is a 32-bit ARM Cortex-M3 running at 50 MHz, which translates to roughly 62.5 DMIPS — enough for real-time control and CAN bus handling.