The Actions ATT7022B chip user manual describes features, pin definitions, system functions, SPI interface, and electrical specifications.
The manual introduces the ATT7022B multifunction anti‑theft energy measurement chip, highlighting its high‑precision capabilities, support for active, reactive, apparent power and harmonic measurements, and suitability for three‑phase three‑wire or four‑wire applications.
It then covers system functions such as power‑monitoring, reset methods, ADC conversion, calibration procedures, the SPI communication interface, and provides detailed electrical parameters and package information. This manual is written in Chinese.
| Supply voltage (VCC) range | 4.75 V – 5.25 V |
|---|---|
| Core voltage (VDD) | 3.0 V |
| ADC resolution | 16 bit |
| ADC sampling rate | 3.2 kHz |
| Operating temperature range | -40 °C to 85 °C |
| Package type | 44‑pin QFP |
The chip operates with a VCC supply voltage between 4.75 V and 5.25 V.
A software reset is performed by writing the command 0xD3 to the SPI port, which triggers a reset of the ATT7022B.
The RESET pin is the chip’s reset input; it is active low and has an internal 47 kΩ pull‑up resistor.
The integrated ADC provides a 16‑bit resolution.