Key facts
- Brand
- Maxim
- Model
- DS2502
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-08
Start here
Maxim DS2502 1Kb Add-Only Memory Manual
The DS2502 is a 1 Kb add‑only memory that communicates over a single data pin using Maxim’s 1‑Wire protocol. It provides a unique 64‑bit laser‑etched ROM, a 1024‑bit EPROM divided into four pages, and status bytes for write‑protect and page‑redirection functions. The device can be read directly from the 1‑Wire line, drawing power parasitically, while programming requires a 12 V pulse.
The manual covers pin assignments for various package types (TO‑92, SFN, SO, SOT‑23, TSOC, flip‑chip), ordering information, detailed command sequences for ROM and memory functions, and electrical characteristics such as operating voltage ranges and temperature limits. Revision history and package outlines are also provided.
Maxim DS2502 specifications
| Memory capacity | 1 kbit (1024 bits) |
|---|---|
| Number of EPROM pages | 4 pages of 32 bytes each |
| Operating voltage (read) | 2.8 V to 6.0 V |
| Programming voltage | 11.5 V to 12.0 V at 10 mA |
| Logic‑1 voltage (typical) | 2.2 V |
| Logic‑0 voltage range | -0.3 V to +0.8 V |
| Output low voltage @ 4 mA | 0.4 V |
| Input load current | 5 µA |
Source: Maxim Integrated DS2502 1 kbit Add‑Only Memory Datasheet
All Maxim DS2502 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the memory capacity of the DS2502?
The DS2502 provides 1 kbit (1024 bits) of add‑only EPROM memory.
From: Maxim Integrated DS2502 1 kbit Add‑Only Memory Datasheet
How many pages does the EPROM contain and how large are they?
The EPROM is divided into four pages, each 32 bytes (256 bits) in size.
From: Maxim Integrated DS2502 1 kbit Add‑Only Memory Datasheet
What programming voltage is required for the DS2502?
The DS2502 programs at 11.5 V to 12.0 V.
How many EPROM pages does the DS2502 have?
The EPROM is divided into four pages of 32 bytes each.