Key facts
- Brand
- Teridian
- Model
- 71M6543G
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2012-04-09
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Teridian 71M6543F/H and 71M6543G/GH IC Datasheet
The 71M6543 family is Teridian's fourth‑generation multiphase electric‑meter system‑on‑chip (SoC). It integrates an 8051‑compatible MPU, a low‑power RTC, flash memory, LCD driver, and a 22‑bit Σ‑Δ ADC, enabling meter designs with minimal external components. The devices support both isolated sensor interfaces and current‑transformer configurations, targeting commercial and industrial metering applications.
The datasheet details hardware architecture, functional blocks, electrical specifications, pin assignments, and ordering information. It also includes timing diagrams, register maps, and application notes for integrating the IC with 71M6xx3 isolation sensors and external EEPROM or flash programming interfaces. This manual is written in Chinese.
Teridian 71M6543G specifications
| RAM size | 5 KB |
|---|---|
| ADC resolution | 22‑bit Σ‑Δ |
| Analog inputs | 7 channels |
| Sleep mode current | 1 µA |
| Operating temperature (continuous) | 125 °C |
| Supply voltage range (V3P3SYS, V3P3A) | -0.5 V to +4.6 V |
All Teridian 71M6543G documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How many analog input channels does the IC provide?
The IC provides seven analog input channels.
What is the current consumption in sleep mode?
Sleep mode draws only about 1 µA.
What flash memory size does the 71M6543G have?
The 71M6543G provides 128 KB of flash memory and 5 KB of RAM.
From: Teridian 71M6543F/H and 71M6543G/GH Energy Meter ICs Datasheet
What accuracy can be expected from these ICs?
They achieve 0.1 % accuracy over a 2000:1 current range.
From: Teridian 71M6543F/H and 71M6543G/GH Energy Meter ICs Datasheet