DS28E16GA+T

Specialized ICS Overview

The DS28E16GA+T is a secure authenticator integrating FIPS 202-compliant SHA-3 challenge-response authentication with secured EEPROM. It features a 256-bit user EEPROM, a decrement-only counter, and a unique 64-bit ROM ID for cryptographic operations. The device communicates via the single-contact 1-Wire bus, supporting overdrive speeds up to 90.9 kbps. Operating within a voltage range of 1.71V to 3.63V and temperatures from -40°C to +85°C, it utilizes parasite power through an internal capacitor. The component provides ±8kV HBM ESD protection and includes robust countermeasures against security attacks.

Specialized ICS Feature Summary

• FIPS 202-compliant SHA-3 engine for challenge/response authentication
• 256 bits of secured user EEPROM with 10-year data retention
• Unique factory-programmed 64-bit ROM ID
• 17-bit decrement-only counter with authenticated read capability

Specialized ICS Applications

• Medical tools and accessories authentication
• Accessory and peripheral secure authentication
• Battery authentication and charge cycle tracking

Specialized ICS Procurement Notes

Verify the specific package variant during procurement. The 'GA' suffix indicates the SFN package measuring 3.5mm x 5mm. Confirm that the ordering suffix corresponds to the required physical dimensions and contact type, as other suffixes denote different package sizes or types within the same family.

Specialized ICS Selection Notes

Select this part when SHA-3 authentication is required alongside non-volatile memory storage. Ensure the application supports the 1-Wire protocol and operates within the specified 1.71V to 3.63V supply range. Verify that the SFN package form factor fits the mechanical constraints, noting it is qualified for electro-mechanical contact use only.

Specialized ICS Part Context

This component belongs to the DS28E16 series of DeepCover secure authenticators. The DS28E16GA+T specifically denotes the version packaged in the 2-pin SFN (3.5mm x 5mm) format. Other variants in the series include WLP and TDFN-EP packages, offering flexibility for different board space and integration requirements.

Specialized ICS Replacement Considerations

Direct replacements within the same family include DS28E16G+T (SFN 3.5mm x 6.5mm), DS28E16Q+T (TDFN-EP), and DS28E16X-S+T (WLP). These share identical electrical and functional specifications but differ in physical package dimensions and pinout configurations.