Polyphase metering core — what the 7x24b sigma-delta ADC means for the BOM
The MSP430F6776IPEUR is a 16-bit metering MCU from TI's MSP430F6xx series, built around the MSP430 CPUXV2 core running at 25 MHz. Its distinguishing feature is the set of seven 24-bit sigma-delta converters — that is the silicon that handles the voltage and current channel sampling in a polyphase energy meter, letting you run three-phase metrology without an external analog front-end. The 256 KB of Flash and 16 KB of RAM are sized for the metrology firmware stack plus a Modbus or DLMS communication profile. 90 I/O lines cover the LCD segment drive, tamper detection inputs, and relay outputs.
The lifecycle status is flagged as eol_hot, meaning TI has issued an end-of-life notice for this specific order code. The productStatus field still shows Active, which typically means the last-time-buy window is open but closing. If this part is on your BOM, now is the time to secure a last-time-buy quantity or qualify a drop-in migration.