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- ZH
- Last added
- 2026-09-28
Featured RuiNeng manuals

RuiNeng RN721X, RN7302, RN820X Chip Selection Guide
The guide provides an overview of three measurement‑SOC families from RuiNeng: the RN721X single‑phase SOC, the RN7302 three‑phase meter chip and the RN820X single‑phase meter chip. Each section includes an introduction, key features, system block diagram, pin assignment and electrical characteristics.
Detailed specifications such as flash size, ADC channels, operating voltage range, measurement accuracy and typical application circuits are listed, helping designers choose the appropriate chip for smart electric‑meter designs. This manual is written in Chinese.
Covers: SOC Chip RN721X Overview · Three‑Phase Meter Chip RN7302 Overview · Single‑Phase Meter Chip RN820X Overview · Chip Features · System Block Diagram · Pin Assignment
Latest RuiNeng manuals
RuiNeng RN721X, RN7302, RN820X Chip Selection Guide
Application Note 35 pages · 944 KB · ZHSelection guide for RuiNeng RN721X, RN7302 and RN820X measurement chips with features, pinouts and electrical specs.
Which document do I need?
Application Note
How to use the product for one specific task, with worked examples.
Questions answered in RuiNeng manuals
What is the operating voltage range for the RN721X chip?
The RN721X operates from 2.8 V to 5.5 V.
How many UART interfaces does the RN721X provide?
The chip provides five UART ports.
