25 MHz — what it means for the loop
At 25 MHz the core executes most instructions in a single cycle, yielding roughly 25 MIPS. For a polyphase energy meter running a 24-bit sigma-delta ADC, this leaves headroom for metrology and communication.
Lifecycle and sourcing reality
The MSP430F6730IPN is marked as end-of-life (EOL). Sourcing is through the independent channel — quoted to order against an RFQ.
Temperature grade and deployment environment
Rated for -40°C to 85°C ambient, the part suits outdoor enclosures, utility-meter cabinets, and factory-floor sensor nodes. The 1.8 V to 3.6 V supply range allows single-cell Li-ion or two alkaline cells with a regulator. The internal oscillator eliminates an external crystal for the CPU clock, though the 24-bit sigma-delta ADC typically requires a precision external reference or crystal for metrology accuracy.