Texas Instruments Stellaris® ARM® Cortex®-M3S 600 series LM3S612-IGZ50-C2, 32-Bit Single-Core MCU, 50MHz, 32KB Flash, 8K x 8 RAM, 34 I/O, 48-VFQFN Exposed Pad, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 600 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 50MHz |
| Package | Tray |
| RAM size | 8K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 34 |
| Core processor | ARM® Cortex®-M3 |
| Case | 48-VFQFN Exposed Pad |
| Data converters | A/D 2x10b |
| Program memory size | 32KB (32K x 8) |
The LM3S612-IGZ50-C2: The LM3S612 is a 32-bit ARM Cortex-M3 MCU from the Stellaris series, running at 50 MHz with 32 KB Flash and 8K x 8 SRAM. It has 34 I/O, two 10-bit ADCs, and I²C, SPI, SSI, Microwire, UART/USART connectivity.
At 50 MHz the Cortex-M3 handles real-time control loops and moderate protocol handling. The 8K x 8 RAM is the tighter constraint — firmware with multiple buffered serial streams or a modest RTOS will fill that quickly.
A pin-compatible alternative within the Stellaris ARM Cortex-M3S 600 family should be evaluated for new designs. The exact replacement depends on your required Flash and RAM size. Contact us with your volume and we can help identify the best drop-in option.
It is rated for -40°C to 85°C (TA), which covers industrial environments like factory floors, outdoor telecom cabinets, and engine-bay-adjacent electronics.