Texas Instruments Stellaris ARM Cortex-M3S 1000 series, LM3S1332-IQC50-A2, 32-bit single-core MCU at 50 MHz, 96 KB Flash, 16 KB SRAM, 57 I/O, 100-LQFP (14×14 mm), 2.25 V–2.75 V supply, -40°C to 85°C.
| 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~85°C(TA) |
| Speed | 50MHz |
| Package | Tray |
| RAM size | 16K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | IrDA, Microwire, SPI, SSI, UART/USART |
| Number of i (O) | 57 |
| Core processor | ARM® Cortex®-M3 |
| Case | 100-LQFP |
| Data converters | A/D 3x10b |
| Program memory size | 96KB (96K x 8) |
The Texas Instruments LM3S1332-IQC50-A2 is a 32-bit ARM Cortex-M3 microcontroller from the Stellaris family, running at 50 MHz with 96 KB of Flash and 16 KB of SRAM. It has 57 I/O lines and peripherals including UART/USART, SPI, SSI, Microwire, IrDA, three 10-bit ADC channels, PWM, and a watchdog timer.
At 50 MHz the Cortex-M3 handles a PID loop at a few kHz. The 16 KB SRAM is tight for heavy buffering.
The LM3S1332-IQC50-A2 is marked obsolete by Texas Instruments.
No official pin-compatible successor is listed in the lifecycle record. For a new design, consider the current Stellaris or TM4C series from Texas Instruments, but verify pin compatibility against your specific PCB layout.
The LM3S1332-IQC50-A2 runs at 50 MHz.