Description
The CS5464 is a watt-hour meter on a chip. It measures line voltage and current and calculates active, reactive, apparent power, energy, power factor, and RMS voltage and current.

FEATUREs
• Energy Linearity: ±0.1% of Reading over 1000:1 Dynamic Range
• On-chip Functions:
    - Voltage and Current Measurement
    - Active, Reactive, and Apparent Power/Energy
    - RMS Voltage and Current Calculations
    - Current Fault and Voltage Sag Detection
    - Calibration
    - Phase Compensation
    - Temperature Sensor
    - Energy Pulse Outputs
• Meets Accuracy Spec for IEC, ANSI, & JIS
• Low Power Consumption
• Tamper Detection and Correction
• Ground-referenced Inputs with Single Supply
• On-chip 2.5 V Reference (25 ppm / °C typ.)
• Power Supply Monitor Function
• Three-wire Serial Interface to Microcontroller or E2PROM
• Power Supply Configurations
    GND: 0 V, VA+: +5 V, VD+: +3.3 V to +5 V