Texas Instruments Stellaris® ARM® Cortex®-M3S 2000 series LM3S2620-EQC25-A2T, 32-bit single-core MCU, 25 MHz, 128 KB Flash, 32K x 8 RAM, 52 I/O, CANbus/I²C/SPI/UART, 100-LQFP, -40°C to 105°C.
| 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 | 25MHz |
| 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, QEI, SPI, SSI, UART/USART |
| Number of i (O) | 52 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Program memory size | 128KB (128K x 8) |
At 25 MHz the Cortex-M3 executes single-cycle multiply and hardware divide. The 128 KB Flash holds a moderate firmware stack; the 32 KB RAM leaves room for a few hundred variables and a CAN frame FIFO.
The LM3S2620-EQC25-A2T carries an NRND status. TI has stopped active promotion but the part is still manufacturable for existing designs. We source and quote it to order against an RFQ.
The LM3S2620-EQC25-A2T is NRND (Not Recommended for New Designs), not fully discontinued. It remains available through independent distribution for existing BOM lines, but TI no longer promotes it for new projects.
No official direct replacement has been published for this specific order code. A pin-compatible Stellaris LM3S part in the same 100-LQFP package and 2.25 V to 2.75 V supply range is the closest cross-shop candidate, but verify firmware and peripheral compatibility before substituting.
The core runs at 25 MHz, which is sufficient for real-time control loops and CAN message handling but not for high-speed data processing.
It belongs to the Stellaris® ARM® Cortex®-M3S 2000 series from Texas Instruments, a family of 32-bit MCUs designed for industrial connectivity and motor control.