71M6521BE Energy Meter IC Data Sheet
The TERIDIAN 71M6521BE is a highly integrated SOC with an MPU core, flash, LCD driver, and a 22‑bit delta‑sigma ADC. It targets residential energy‑metering applications, offering features such as four sensor inputs, digital temperature compensation, and a 32‑bit computation engine.
The document includes a general description, feature list, hardware overview, functional blocks, electrical specifications, pinout and package details, and ordering information. It also contains tables of registers, memory maps, and timing diagrams for developers and system designers.
| Wh accuracy | < 0.4% over 2000:1 current range |
|---|---|
| Voltage reference temperature coefficient | < 40 ppm/°C |
| Number of sensor inputs | Four (VDD referenced) |
| ADC type | 22‑bit delta‑sigma |
| Package | 64‑pin LQFP, lead‑free |
| General‑purpose I/O pins | Up to 14 |
It provides less than 0.4 % Wh accuracy over a 2000:1 current range.
The device offers up to 14 general‑purpose I/O pins.
The voltage reference has a temperature coefficient of less than 40 ppm/°C.
It is supplied in a 64‑pin lead‑free LQFP package.