50 MHz Cortex-M3 with 32 KB flash
The LM3S610-IQN50-C2T is a Stellaris ARM Cortex-M3S 600 series microcontroller from Texas Instruments, built around a 32-bit single-core Cortex-M3 processor clocked at 50 MHz. This core speed handles control loops, protocol stacks, and real-time sensor fusion without external co-processors for most embedded tasks. On-chip memory consists of 32 KB flash for firmware and 8 KB SRAM for data buffers and stack. The flash is sufficient for mid-complexity applications like motor control, human-machine interface logic, or sensor aggregation nodes. Packaged in a 48-LQFP (7x7 mm) with 34 general-purpose I/Os, the part fits on compact 2- or 4-layer boards. The 0.5 mm pitch requires careful fan-out planning but keeps the footprint manageable for space-constrained designs.
Industrial temperature and supply rail
Rated for -40 to +85 °C ambient operation, the LM3S610-IQN50-C2T suits factory-floor controllers, outdoor telemetry units, and HVAC equipment where the enclosure sees temperature swings. The brown-out detect and POR circuits ensure clean startup and reset on supply dips.
Peripheral set for sensor and actuator interfaces
Connectivity includes I2C, SPI, SSI, Microwire, and UART/USART interfaces, covering common sensor buses (I2C temperature/humidity, SPI ADC/DAC) and serial communication with displays or wireless modules. The 2x 10-bit ADC provides two analog input channels for potentiometers, thermistors, or current-sense signals. On-chip PWM and watchdog timer support motor speed control and system supervision without external timer ICs. The 34 GPIOs leave headroom for keypad matrices, LED indicators, and relay drivers alongside the serial interfaces.