Texas Instruments Stellaris® ARM® Cortex®-M3S 5000 series LM3S5K36-IQR80-C0, 32-Bit Single-Core MCU, 80MHz, 128KB FLASH, 24K x 8 RAM, CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB, 33 I/O, A/D 8x10b, -40°C~85°C, 64-LQFP.
| 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 | Tray |
| 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) | 33 |
| Core processor | ARM® Cortex®-M3 |
| Case | 64-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 128KB (128K x 8) |
Runs at 80 MHz, carries 128 KB Flash and 24K x 8 SRAM, includes CAN and USB.
80 MHz core clock. 128 KB Flash is sized for mid-complexity firmware.
Rated for -40°C to 85°C ambient. 64-pin LQFP (10x10 mm body). 33 GPIOs.
Texas Instruments has marked the LM3S5K36-IQR80-C0 as obsolete. No official direct replacement listed. Available through independent distribution on a sourced-to-order basis.
There is no official pin-compatible replacement from TI. The Stellaris family was succeeded by the TM4C series, but a board redesign and software migration are required to use a TM4C part. For existing designs, the LM3S5K36-IQR80-C0 is sourced through surplus and broker channels.
The LM3S5K36-IQR80-C0 is rated for -40°C to 85°C ambient, covering industrial and outdoor telecom environments.
The part is RoHS compliant as shipped in the standard tray packaging. No additional compliance documentation is required for EU markets.