Texas Instruments Stellaris ARM Cortex-M3S 1000 series MCU, LM3S1439-EQC50-A2, 32-bit single-core, 50 MHz, 96 KB Flash, 32K x 8 RAM, 52 I/O, 100-LQFP, -40°C to 105°C, 2.25 V to 2.75 V supply.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 1000 |
| 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 | Tray |
| RAM size | 32K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART |
| Number of i (O) | 52 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Data converters | A/D 4x10b |
| Program memory size | 96KB (96K x 8) |
The LM3S1439-EQC50-A2: It runs at 50 MHz and packs 96 KB of Flash program memory with 32K x 8 bytes of SRAM — enough for moderate control loops, sensor fusion, or a modest protocol stack. The 52 general-purpose I/O lines give you room for parallel displays, keypads, or a bank of opto-isolated inputs.
Runs at 50 MHz with an internal oscillator.
No further production runs.
Yes, TI has classified this part as obsolete. No further production is planned.
Yes, it includes a 4-channel 10-bit ADC.