Texas Instruments LM3S5951-IQC80-C5T, Stellaris ARM Cortex-M3S 5000 series, 32-bit MCU, 80MHz, 256KB Flash, 64KB RAM, 67 I/O, 1.08V-1.32V core, 100-LQFP, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 5000 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.08V ~ 1.32V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 80MHz |
| Package | Tape & Reel (TR) |
| RAM size | 64K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB OTG |
| Number of i (O) | 67 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Data converters | A/D 16x10b |
| Program memory size | 256KB (256K x 8) |
The 256 KB program memory is Flash type, so field updates are possible over USB or CAN. The 64 KB SRAM (organized as 64K x 8) is adequate for moderate data buffers and protocol stacks; designs with large frame buffers or heavy logging may need external memory via the SPI or SSI interface.
No official TI replacement has been published for this exact order code.
Surface-mount only.
For new designs, consider a current-production Stellaris or Tiva-C series part with similar peripheral mix — verify pin-compatibility separately, as the LM3S5951 uses a 1.08 V to 1.32 V core supply.