DS28E16X+U

Specialized ICS Overview

The DS28E16 is a 1-Wire secure authenticator integrating FIPS 202-compliant SHA-3 challenge-response authentication with secured EEPROM. It includes a SHA-3 engine, 256 bits of secured user EEPROM, a decrement-only counter, and a unique 64-bit ROM ID. Operating on a single-contact 1-Wire bus, it supports parasite power via an internal capacitor. Electrical specifications include an operating voltage range of 1.71V to 3.63V and an operating temperature range of -40°C to +85°C. The device features ±8kV HBM ESD protection and a typical input load current of 3.5µA.

Specialized ICS Feature Summary

• FIPS 202-compliant SHA-3 algorithm for challenge/response authentication
• 256 bits of secured EEPROM for user data and secret storage
• 17-bit one-time settable, nonvolatile decrement-only counter with authenticated read
• Unique factory-programmed 64-bit identification number (ROM ID)

Specialized ICS Applications

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

Specialized ICS Procurement Notes

Verify the specific package suffix (X, Q, G, or GA) required for the target application, as these denote different physical form factors including WLP, TDFN-EP, and SFN. Confirm that the ordering suffix indicates RoHS compliance status. Ensure the selected variant matches the intended thermal and mechanical constraints of the design.

Specialized ICS Selection Notes

Select the appropriate package based on space and contact requirements: WLP for small footprints, TDFN-EP for exposed pad soldering, or SFN for electro-mechanical contact use cases only. Verify system pullup resistor values against the maximum 750Ω requirement and ensure the network topology supports the specified parasitic capacitance limits.

Specialized ICS Part Context

The DS28E16 belongs to the DeepCover family of security ICs from Analog Devices/Maxim Integrated. It utilizes integrated cryptographic blocks to provide a root of trust for detecting counterfeit products and managing secure usage. The device complements other 1-Wire components like the DS2477 bridge for I2C-to-1-Wire translation in complex systems.

Specialized ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.