Texas Instruments Stellaris® ARM® Cortex®-M3S 6000 series MCU, LM3S6938-EQC50-A2T, 32-bit single-core, 50 MHz, 256 KB Flash, 64K x 8 SRAM, Ethernet and serial connectivity, 100-LQFP, -40°C to 105°C.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 6000 |
| 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 | 64K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 38 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 256KB (256K x 8) |
The LM3S6938-EQC50-A2T: The 100-pin LQFP package exposes 38 I/O lines.
The 64 KB SRAM handles a few Ethernet buffers and moderate data structures.
Buyers should plan for a last-time-buy or qualify a pin-compatible alternative from the Stellaris family if the BOM must stay active for years.
The supplier device package is 100-LQFP (14x14).
Determines availability and need for replacement in existing designs.
Critical for design continuity and sourcing when the original is no longer produced.
Finds authorized distributors or surplus sources for obsolete parts.
Required for PCB layout and hardware integration.
Verifies performance, memory, and peripheral compatibility for the application.
Ensures drop-in replacement when only the tape-and-reel suffix differs.