This document describes the features and characteristics of products from Maxim Integrated Products.
This document describes the Maxim DS1972 1‑Wire EEPROM chip. It includes the device’s memory organization, electrical specifications, timing diagrams, and a full list of supported commands for reading, writing, and managing the EEPROM.
The datasheet also covers package information, protection features, and recommended operating conditions, making it a complete reference for designers integrating the DS1972 into iButton or other 1‑Wire systems. This manual is written in Chinese.
| EEPROM size | 1024 bits (128 bytes) |
|---|---|
| Memory pages | 4 pages of 256 bits each |
| Operating temperature range | -40 °C to +85 °C |
| Write/Erase cycle endurance (85 °C) | 50 k cycles |
| Data retention (85 °C) | 40 years |
| Package height (F5 iButton) | 16.25 mm |
The DS1972 contains 1024 bits of EEPROM memory.
It can operate from –40 °C up to +85 °C.