DS2502S/T&R

Memory IC Overview

The DS2502S/T&R is a 1Kb EPROM memory IC featuring a 1-Wire interface, packaged in an 8-pin SOIC format. It provides 1024 bits of electrically programmable read-only memory organized into four 256-bit pages. The device includes a factory-lasered unique 64-bit ROM ID for traceability. Operating voltage ranges from 2.8V to 6.0V, with programming requiring 11.5V to 12.0V. The functional temperature range is -40°C to +85°C.

Memory IC Feature Summary

• Provides absolute traceability through a guaranteed unique 64-bit registration number containing a serial number and CRC.
• Supports add-only memory architecture allowing data appending without disturbing existing content.
• Enables page-level write protection to prevent unauthorized tampering of stored information.
• Utilizes parasite power derived from the communication line for read operations.

Memory IC Applications

• Asset tracking and identification
• Storage of calibration constants
• Maintenance record logging
• Product revision status storage

Memory IC Procurement Notes

Verify the specific suffix T&R indicates tape and reel packaging when sourcing components. Confirm the manufacturer designation matches Analog Devices Inc./Maxim Integrated specifications. Ensure the ordering code aligns with the required 8-pin SO package variant for proper integration.

Memory IC Selection Notes

Select this component for applications requiring minimal pin count and robust data integrity. The 1-Wire interface reduces control complexity by utilizing a single data pin. Consider the add-only nature of the memory when designing software logic for data updates and patching strategies.

Memory IC Part Context

This part belongs to the DS2502 family of 1-Kbit EPROM devices designed for system traceability. It integrates non-volatile memory with a unique identification code. The series supports various packages including TO-92, SOT-23, and SOIC to accommodate different assembly requirements.

Memory IC Replacement Considerations

DS2502S+ is the lead-free RoHS-compliant version of the same component. Verify package compatibility and electrical specifications before substitution.