The DS2433 4Kb 1-Wire® EEPROM identifies and stores relevant information about the product to which it is associated. This lot or product specific information can be accessed with minimal interface, for example a single port pin of a microcontroller. The DS2433 consists of a factory-lasered registration number that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit Family Code (23h) plus 4096 bits of user-programmable EEPROM. The power to read and write the DS2433 is derived entirely from the 1-Wire communication line. The memory is organized as sixteen pages of 256 bits each. The scratchpad is an additional page that acts as a buffer when writing to memory. Data is first written to the scratchpad where it may be read back for verification. A copy scratchpad command will then transfer the data to memory. This process insures data integrity when modifying the memory. The 64-bit registration number provides a guaranteed unique identity which allows for absolute traceability and acts as node address if multiple DS2433s are connected in parallel to form a local network. Data is transferred serially via the 1-Wire protocol which requires only a single data lead and a ground return. The PR-35 and SO packages provide a compact enclosure that allows standard assembly equipment to handle the device easily for attachment to printed circuit boards or wiring. Typical applications include storage of calibration constants, board identification and product revision status.
Unique, Factory-Lasered and Tested 64-Bit Registration Number (8-Bit Family Code + 48-Bit Serial Number + 8-Bit CRC Tester) Assures Absolute Identity Because No Two Parts Are Alike
Built-In Multidrop Controller Ensures Compatibility with Other MicroLAN Products
Memory Partitioned Into Sixteen 256-Bit Pages for Packetizing Data
256-Bit Scratchpad with Strict Read/Write Protocols Ensures Integrity of Data Transfer
Reduces Control, Address, Data, and Power to a Single Data Pin
Directly Connects to a Single Port Pin of a Microprocessor and Communicates at Up to 16.3kbps
Overdrive Mode Boosts Communication Speed to 142kbps
8-Bit Family Code Specifies DS2433 Communication Requirements to Reader
Presence Detector Acknowledges When Reader First Applies Voltage
Low-Cost PR-35, SFN, Flip Chip, or 8-Pin SO Surface-Mount Packages
Reads and Writes Over a Wide Voltage Range of 2.8V to 6.0V from -40°C to +85°C
Device Authentication
IEEE 1451.4 Sensor TEDS
Ink/Toner Cartridges
Medical Sensors
PCB Identification
Self-Configuration of Central Office Switches, Wireless Base Stations, PBXs, or other Modular-Based Rack Systems
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
Download
E-Mail