25 MHz CPUXV2 core with 3x24-bit sigma-delta ADC
The MSP430F6731IPN: The 52 I/O lines and internal oscillator reduce external component count.
24-bit sigma-delta ADC — the metrology anchor
The three 24-bit sigma-delta converters provide the dynamic range needed for energy measurement without an external AFE. Each channel can be configured independently for differential inputs, and the internal reference and PGA keep the analog front-end compact.
The integrated brown-out detect and POR keep the core safe during power-up and sag events — critical in noisy industrial or utility-grid installations.