DS28E15X+U

Specialized ICS Overview

The DS28E15X+U is a DeepCover Secure Authenticator integrating SHA-256 cryptographic authentication with 512-bit user EEPROM. It operates on the 1-Wire interface within a 3.3V ±10% supply range (-40°C to +85°C). The device features a unique factory-programmed 64-bit ROM ID and supports symmetric-key bidirectional challenge-response security. Memory includes 512 bits of user EEPROM, organized into two 256-bit pages, alongside protected memory for secret keys and protection settings. It offers irreversible write/read protection modes and ±8kV HBM ESD protection in a TDFN-EP package.

Specialized ICS Feature Summary

• SHA-256 based bidirectional secure authentication model
• 512-bit user EEPROM partitioned into two 256-bit pages
• Unique factory-programmed 64-bit identification number
• User-programmable and irreversible EEPROM protection modes

Specialized ICS Applications

• Authentication of consumables
• Secure feature control

Specialized ICS Procurement Notes

Verify the specific suffix (e.g., Q, G) against the 'X' placeholder to confirm exact pinout and voltage tolerances. Confirm RoHS compliance status and lead times directly with Analog Devices or authorized distributors, as availability varies by region. Ensure the selected package matches the PCB footprint requirements.

Specialized ICS Selection Notes

Select this component when high-security authentication is required for 1-Wire networks. The DS28E15 series provides FIPS 180-3 compliant SHA-256 operations. Compare storage needs; if more than 512 bits are required, consider the DS28E17 series. Verify that the host controller supports the 1-Wire protocol and can handle the specific voltage levels of the 3.3V variant.

Specialized ICS Part Context

The DS28E15 belongs to the DeepCover Secure Authenticator family from Maxim Integrated (now Analog Devices). It is designed to protect intellectual property and prevent counterfeiting in embedded systems. The 'U' suffix typically denotes a TDFN-EP package, distinguishing it from SFN or TSOC variants like the DS28E15G or DS28E15P.

Specialized ICS Replacement Considerations

DS28E15Q+U: Verified alternative with identical functionality but potentially different manufacturing lot or minor revision differences. DS28E15G+T: Alternative package (SFN) with same electrical characteristics. DS28E17 series: Upgrade option for larger EEPROM capacity.