DS2433+ – 4Kbit 1-Wire® EEPROM Memory IC – Analog Devices

This DS2433+ EEPROM memory IC from Analog Devices provides reliable non-volatile data storage with minimal wiring requirements. Ideal for legacy systems and identification applications, this IC enables secure parameter storage and device authentication through its efficient 1-Wire interface. PCX ensures genuine Analog Devices components with same-day shipping and technical support.

Key Features

• 4Kbit Memory Capacity (256 x 16 organization)
• 1-Wire® Serial Interface – Single-contact communication
• 2μs Ultra-Fast Access Time
• Wide Temperature Range: -40°C to 85°C
• Through-Hole Mounting (TO-92-3 package)
• Non-Volatile EEPROM Technology – Data retention without power

Technical Specifications

The DS2433+ features a 256 x 16 memory organization with 2μs access time for rapid read operations. Its unique 1-Wire interface reduces system wiring complexity by enabling bidirectional data transfer through a single microcontroller pin. Designed for industrial environments, this IC operates reliably across the extended temperature range of -40°C to 85°C. The through-hole TO-92-3 package facilitates prototyping and serviceability in legacy equipment.

Typical Applications

• Industrial control system parameter storage
• Medical device calibration data retention
• Legacy equipment maintenance and repair
• Authentication tokens and security modules
• Sensor calibration data logging

About Analog Devices

Analog Devices (ADI) is a global leader in high-performance semiconductor solutions, renowned for precision analog and digital signal processing technologies. Following their acquisition of Maxim Integrated, ADI strengthened their portfolio in data conversion, power management, and specialized memory components.

With over 50 years of industry expertise, Analog Devices maintains rigorous quality standards and provides long-term support for legacy components. Their products are trusted in mission-critical applications across aerospace, healthcare, and industrial sectors, making them a preferred supplier for engineers requiring reliable, long-lifecycle solutions.

About EEPROM Memory ICs

Electrically Erasable Programmable Read-Only Memory (EEPROM) ICs provide non-volatile data storage that retains information without power. Unlike volatile memory, EEPROMs preserve critical parameters, calibration data, and configuration settings through power cycles and system reboots. Their byte-level rewrite capability offers superior flexibility compared to other non-volatile memory types.

EEPROMs are essential components in systems requiring frequent parameter updates or secure identification storage. They’re widely implemented in industrial controllers, medical instruments, automotive subsystems, and consumer electronics where reliable data preservation is critical. The 1-Wire EEPROM variant significantly reduces interconnect complexity in space-constrained designs.

Packaging Information

This product is supplied in bulk packaging. For reel packaging options on similar active components, contact PCX technical support.

Frequently Asked Questions

Question: Is the DS2433+ suitable for new designs?
Answer: This component is marked obsolete by Analog Devices but remains available through PCX for legacy system maintenance and repairs.

Question: What is the maximum data retention period?
Answer: The DS2433+ maintains data integrity for a minimum of 10 years under specified operating conditions.

Question: Does the 1-Wire interface require special drivers?
Answer: Yes, it requires compatible 1-Wire master controllers and protocol libraries available from Analog Devices.

Question: Can this EEPROM operate at 3.3V?
Answer: Yes, it supports 2.8V to 5.25V operation per the datasheet specifications.

Question: How many write cycles does it support?
Answer: The DS2433+ supports a minimum of 200,000 write cycles per memory block.

Question: Is the datasheet available?
Answer: Yes, download the complete DS2433+ datasheet from our product page [link hosted on PCXCo.com].

Note: Product images are representational only. Refer to datasheets for exact specifications.

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