Key facts
- Brand
- Maxim
- Model
- DS1972
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2012-04-09
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Maxim DS1972 1-Wire EEPROM Datasheet
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.
Maxim DS1972 specifications
| 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 |
All Maxim DS1972 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How many bits of EEPROM does the DS1972 contain?
The DS1972 contains 1024 bits of EEPROM memory.
What is the operating temperature range of the DS1972?
It can operate from –40 °C up to +85 °C.
What is the memory capacity of the DS1972?
The DS1972 provides 1024 bits of EEPROM memory organized into four 256‑bit pages.
How many write/erase cycles can the DS1972 endure?
The device is rated for 200 k write/erase cycles at 25 °C.