Six 16-bit sigma-delta ADCs — the metering differentiator
The MSP430F47176IPZ is a Texas Instruments 16-bit microcontroller from the MSP430x4xx family, built around the MSP430 CPU16 core. Its defining feature for energy metering and industrial instrumentation is the set of six 16-bit sigma-delta A/D converters — enough to sample multiple voltage and current phases simultaneously without external multiplexing. Running at 16 MHz, the core handles the real-time metrology algorithms while the DMA engine moves conversion results to memory without CPU intervention. The 92 KB of program flash and 8 KB of RAM provide headroom for the metering firmware stack plus communication protocol handlers.
Peripheral set for standalone metering nodes
An integrated LCD driver drives segment displays directly — no external display controller needed for utility meter front panels. The brown-out detect and POR circuit ensures the MCU starts cleanly on power-up and resets on supply dips, critical for unattended meters that must not corrupt calibration data. The 68 I/O lines in the 100-LQFP package leave ample room for keypad scanning, relay drivers, and tamper detection inputs.
Active lifecycle — no end-of-life pressure
Texas Instruments lists the MSP430F47176IPZ with an active product status as of the current lifecycle review. For a procurement desk evaluating BOM risk, this means no forced migration timeline.