Texas Instruments Stellaris ARM Cortex-M3S 5000 series LM3S5P31-IBZ80-C5T, 32-Bit Single-Core MCU, 80MHz, 64KB Flash, 24K x 8 RAM, CAN/I²C/SPI/UART/USB, 108-LFBGA, -40°C~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 | 24K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB |
| Number of i (O) | 67 |
| Core processor | ARM® Cortex®-M3 |
| Case | 108-LFBGA |
| Data converters | A/D 16x10b |
| Program memory size | 64KB (64K x 8) |
The LM3S5P31-IBZ80-C5T: The 108-ball BGA package (10x10 mm) packs 67 GPIOs, a 16-channel 10-bit ADC, and a full suite of serial interfaces: CAN, I²C, IrDA, LIN, Microwire, QEI, SPI, SSI, UART/USART, and USB.
For BOM lines that require this exact order code, the only supply channel is independent distribution — new-old-stock or surplus inventory sourced from verified brokers.
Yes, the LM3S5P31-IBZ80-C5T is listed as Obsolete. Texas Instruments has discontinued production, and there is no active last-time-buy program. The part is available only through independent surplus and broker channels.
The LM3S5P31-IBZ80-C5T uses the standard ARM Cortex-M3 debug interface (SWD/JTAG). It is supported by TI's Code Composer Studio, Keil MDK-ARM, IAR Embedded Workbench, and any ARM-compatible debug probe (e.g., J-Link, ST-Link, TI XDS). The internal Flash is programmed via the serial wire debug port.