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Maxim > Products > 1-Wire® Devices

1-Wire Products Are Excellent Solution for Monitoring and Configuring Rack Systems

Provide a Unique ID for Every Board

The controller in a module-based rack or chassis system often needs to identify what cards are installed, monitor key metrics like temperature, and track hot-swapped units. The 1-Wire memory, I/O, and temperature-sensor products solve this problem by providing a unique identity for every module in the system. This proprietary technology also enables all devices to be interrogated over a common 1-Wire connection.

1-Wire Products Are Excellent Solution for Monitoring and Configuring Rack Systems

1-Wire Products Are Excellent Solution for Monitoring and Configuring Rack Systems

Minimizes Backplane Connector Complexity
Derives Operating Power Entirely from the 1-Wire Line
Designed for Hot/Live System Insertion
Wide Operating Ranges: +2.8V to +5.25V, -40°C to +85°C
Each Part Uniquely Identified by a Factory-Lasered 64-Bit ROM ID

Part	Memory Type	Memory Size (Bits)	Additional Features
DS28EA00	EEPROM	256	0.5°C accuracy, -55°C to +125°C, chain mode for physical location ID, GPIO
DS28E04-100	EEPROM	4k	Seven external-address inputs to identify physical card location, two GPIO pins
DS2413	ROM only	64	Dual 20V/20mA GPIO
DS2431	EEPROM	1k	Write protection, OTP modes
DS2433	EEPROM	4k	—
DS28EC20	EEPROM	20k	Write protection, OTP modes
DS250x	EPROM	1k, 16k	Write protection
DS28E01-100	EEPROM	1k	SHA-1 authentication