Texas Instruments Stellaris ARM Cortex-M3S 1000 series MCU, LM3S1H16-IQR50-A1, 32-Bit Single-Core 50MHz, 512KB FLASH, 48K x 8 RAM, 64-LQFP, -40°C~85°C.
| Parameter | Value |
|---|---|
| Series | Stellaris® ARM® Cortex®-M3S 1000 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.235V ~ 1.365V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 50MHz |
| Package | Tray |
| RAM size | 48K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 33 |
| Core processor | ARM® Cortex®-M3 |
| Case | 64-LQFP |
| Data converters | A/D 8x12b |
| Program memory size | 512KB (512K x 8) |
No lead-time or stock figure can be stated here because the channel is spot-market, not factory-direct.
The 8-channel 12-bit ADC provides analog measurement capability without an external converter. The DMA engine can offload peripheral-to-memory transfers, which helps maintain throughput in data-logging or multi-protocol gateway applications.
For a pin-compatible alternative within the Stellaris LM3S1xxx family, a design engineer would need to review the parametric cross-reference tables in the Stellaris family datasheet — the evidence does not provide a specific substitute MPN. The buyer should plan for a redesign if a direct replacement is not found in surplus stock.