Texas Instruments Stellaris® ARM® Cortex®-M3S 8000 series LM3S8733-IBZ50-A2T, 32-Bit Single-Core MCU, 50MHz, 128KB Flash, 64K x 8 RAM, 108-LFBGA, -40°C~85°C.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 8000 |
| 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, Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 35 |
| Core processor | ARM® Cortex®-M3 |
| Case | 108-LFBGA |
| Data converters | A/D 4x10b |
| Program memory size | 128KB (128K x 8) |
It runs at 50 MHz and packs 128 KB of Flash and 64 KB of RAM — enough for moderate protocol stacks and control loops.
50 MHz on an ARM Cortex-M3 is a comfortable mid-range speed for real-time control loops and protocol handling.
No official successor is listed for the LM3S8733-IBZ50-A2T. Pin-compatible siblings with different Flash/RAM densities exist in the Stellaris 8000 series.
No official replacement is listed in the product documentation. For a pin-compatible alternative within the Stellaris 8000 series, you would need to cross-reference the 108-BGA footprint and peripheral set — Ethernet and CAN are the key differentiators.
Yes, the LM3S8733-IBZ50-A2T includes an Ethernet MAC as part of its connectivity set, alongside CANbus, I²C, SPI, SSI, UART, and IrDA.