What the 4x24-bit sigma-delta ADC means for your metering design
Its defining feature is the four integrated 24-bit sigma-delta analog-to-digital converters, purpose-built for polyphase energy metering and precision sensor front-ends where you need simultaneous sampling on multiple channels.
Peripheral set and connectivity for smart meters and industrial sensors
The part includes a brown-out detect/reset, DMA controller, LCD driver, POR, PWM, and watchdog timer. For communication it brings I²C, IrDA, LINbus, SPI, and UART/USART — enough to talk to an external RF module, a host processor, or a sub-metering node over a serial bus.
The 100-LQFP is a common footprint; rework with a hot-air station is straightforward if you have a stencil and the right profile.