Stellaris® ARM® Cortex®-M3S 2000 series, LM3S2601-EQC50-A2T, 32-bit single-core MCU, 50 MHz, 128 KB Flash, 32K x 8 RAM, CAN/I²C/SPI/UART, 60 I/O, 100-LQFP, -40 to 105°C, 2.25 V to 2.75 V supply.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 2000 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.25V ~ 2.75V |
| Operating temperature | -40°C~105°C(TA) |
| Speed | 50MHz |
| Package | Tape & Reel (TR) |
| RAM size | 32K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | CANbus, I²C, IrDA, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 60 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Program memory size | 128KB (128K x 8) |
The LM3S2601-EQC50-A2T is a Stellaris ARM Cortex-M3 MCU from the 2000 series, built around a 32-bit single-core processor running at 50 MHz.
For BOM lines that still call out this exact MPN — legacy production, field-service spares, or a design that cannot migrate — supply runs through independent distribution.
Brown-out detect and POR are integrated, which saves an external supervisor on the reset line.
No official replacement part number has been issued. For existing designs, supply is available through surplus and broker channels.
Texas Instruments has not published an official replacement for this obsolete MPN. For new designs, TI's Tiva C Series Cortex-M4 MCUs are the current-generation alternative, but they are not pin-compatible. For legacy boards, the LM3S2601-EQC50-A2T remains the exact drop-in.