1 KB flash and 256 bytes RAM — sizing the firmware budget
Supply voltage 1.8V to 3.6V — direct battery operation
The 1.8V to 3.6V supply range lets this MCU run directly from two alkaline cells, a Li-ion cell, or a 3.3V regulated rail without an external LDO in many cases. At the low end, 1.8V operation at 16 MHz is possible, though flash access timing may need a wait state below about 2.2V depending on the temperature; the datasheet's supply vs. frequency curve is the reference here.
Industrial temperature grade and peripherals
On-chip peripherals include a 16-bit timer with PWM, a 10-bit ADC (though not explicitly listed in the spec row, the MSP430G2xx family typically includes one — verify against the full datasheet), plus I²C, SPI, and UART serial interfaces.
20-TSSOP package — rework and layout notes
The thermal pad is not present on this package — all dissipation goes through the leads, so keep the ambient below 85°C if the MCU is driving more than a few milliamps of I/O. MSL is typically 1 for this package family, but confirm the reel label before bake decisions.
For new designs, it is a safe choice with no imminent obsolescence risk.