MSP430F2003IPW — 16-bit ultra-low-power MCU for sensor and control loops
The integrated 10-channel 16-bit ADC lets it read analog sensors directly, while the I²C and SPI serial interfaces handle communication with external peripherals.
1 KB Flash and 128 bytes RAM — sizing the firmware footprint
With 1 KB of Flash and 128 bytes of RAM, this MCU is not for complex protocol stacks or data logging. It fits applications like a temperature sensor reading a thermistor through the 16-bit ADC and sending a value over I²C, or a simple PWM fan controller with brown-out protection. The 256-byte information memory block in the Flash array can store calibration constants or configuration data that survives power cycles. Firmware must be written lean — typically in C with hand-tuned loops or assembly for timing-critical sections.
The 14-TSSOP package (4.40 mm width, 0.65 mm pitch) is a surface-mount footprint common in space-constrained designs.