Core specs and what they mean for your BOM
The MSP430G2432IPW20 is a 16-bit microcontroller from the MSP430G2xx family, built around the MSP430 CPU16 core clocked at 16 MHz. The 8 KB on-chip flash and 256 bytes of RAM define the application boundary — this part fits control loops, sensor polling, and serial communication tasks that stay under that memory ceiling. Eight 10-bit ADC channels are integrated, so a temperature or current-sense input connects directly without an external converter. The USI module handles I²C and SPI — enough for a small sensor network or a serial EEPROM interface.
Package and board integration
Housed in a 20-TSSOP package with 0.65 mm pitch, the footprint routes cleanly on a 2-layer PCB — no micro-vias needed. The 16 I/O pins share the package with power and oscillator connections; expect about 12 usable GPIOs after accounting for the supply and any serial interface pins. Operating temperature range is -40°C to 85°C, covering industrial enclosures, outdoor sensor nodes, and automotive cabin environments (though not AEC-Q100 qualified per the evidence). The brown-out detect and POR circuits reset the core cleanly during supply transients.