Key facts
- Brand
- Maxim
- Model
- DS2433
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-08
Start here

Maxim DS2433 1-Wire EEPROM Datasheet
The DS2433 provides 4 kb (4096 bits) of non‑volatile memory organized into sixteen 256‑bit pages plus a 32‑byte scratchpad for buffered writes. Each device carries a unique 64‑bit laser‑etched ROM code that includes an 8‑bit family code, a 48‑bit serial number and an 8‑bit CRC, ensuring absolute identity.
Communication uses the 1‑Wire protocol over a single data pin, with standard‑speed up to 16.3 kbps and an over‑drive mode up to 142 kbps. The part operates from 2.8 V to 6.0 V and from –40 °C to +85 °C, and it supports up to 50 k write/erase cycles. Packages are available in PR‑35 surface‑mount and 8‑pin SOIC (DS2433S) formats.
Maxim DS2433 specifications
| Memory size | 4 kb (4096 bits) |
|---|---|
| Voltage range | 2.8 V – 6.0 V |
| Standard communication speed | 16.3 kbps |
| Over‑drive speed | 142 kbps |
| Write/Erase cycles | 50 k cycles |
All Maxim DS2433 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What unique identifier does the DS2433 have?
Each DS2433 contains a laser‑etched 64‑bit ROM code made up of an 8‑bit family code, a 48‑bit serial number and an 8‑bit CRC.
What is the standard communication speed of the DS2433?
The DS2433 communicates at up to 16.3 kbps in standard mode.
How fast can the DS2433 operate in Overdrive mode?
In Overdrive mode the DS2433 can reach a communication speed of 142 kbps.
