Professional IC Distribution & Technical Solutions

The DS2502S+T&R is a 1-Wire Add-Only Memory device manufactured by MAXIM Integrated (now part of Analog Devices).

Key Specifications:

• Memory Size: 1Kb (128 bytes)
• Interface: 1-Wire® (single-contact serial communication)
• Operating Voltage: 2.8V to 6.0V
• Temperature Range: -40°C to +85°C
• Package: SOT-23-6 (Tape and Reel packaging)
• Write Cycles: EPROM (Electrically Programmable Read-Only Memory) – write-once, read-many
• Unique 64-Bit ROM ID: Factory-lasered registration number ensures traceability

Descriptions:

• The DS2502 is a read-only memory device that can be programmed once and retains data permanently.
• It is commonly used for identification, calibration, and secure data storage in applications like medical devices, industrial systems, and authentication.
• Communicates via the 1-Wire protocol, reducing wiring complexity.

Features:

• Add-Only Memory: Data can be written once but cannot be erased or modified.
• 64-Bit Unique Identifier: Includes a 48-bit serial number, 8-bit CRC, and 8-bit family code (09h).
• Low Power Consumption: Ideal for battery-powered applications.
• High-Speed Data Transfer: Supports standard and overdrive 1-Wire communication speeds.
• EPROM Security: Tamper-resistant storage for critical data.

For detailed electrical characteristics and application notes, refer to the official MAXIM datasheet.