DS28E36BQ+T

Specialized ICS Overview

The DS28E36BQ+T is a DeepCover secure authenticator integrating ECC-P256 and SHA-256 cryptographic engines. It features an 8Kb secured EEPROM, a decrement-only counter, two configurable GPIO pins, and a unique 64-bit ROM ID. The device communicates via the single-contact 1-Wire bus at standard (11.7kbps) or overdrive (62.5kbps) speeds. Operating parameters include a pullup voltage range of 2.97V to 3.63V and a computation current of up to 7.5mA. It supports FIPS 186 ECDSA and FIPS 180 HMAC functions within a 6-pin TDFN-EP package.

Specialized ICS Feature Summary

• ECC-P256 compute engine supporting FIPS 186 compliant ECDSA signature generation/verification and ECDH key exchange
• SHA-256 compute engine for FIPS 180 MAC and FIPS 198 HMAC operations
• Integrated NIST SP 800-90B compliant true random number generator (RNG)
• 8Kb secured EEPROM with multiple protection modes including ECDSA and HMAC authentication

Specialized ICS Applications

• IoT Node Crypto-Protection
• Accessory and Peripheral Secure Authentication
• Secure Storage of Cryptographic Keys for a Host Controller
• Secure Boot or Download of Firmware and/or System Parameters

Specialized ICS Procurement Notes

Verify the ordering suffix 'BQ+T' corresponds to the specific tape-and-reel packaging configuration in the manufacturer's official documentation. Confirm that the component meets RoHS requirements as indicated by the '+' suffix. Ensure compatibility with the 6-pin TDFN-EP package dimensions during procurement planning.

Specialized ICS Selection Notes

Select this component when bidirectional asymmetric key authentication or secure key storage is required on a 1-Wire network. The device is suitable for applications needing hardware-accelerated ECC-P256 and SHA-256 operations without external crypto modules. Consider the 1-Wire interface constraints and the need for strong pullup capabilities during cryptographic computations.

Specialized ICS Part Context

The DS28E36 belongs to the Maxim Integrated DeepCover family of secure authenticators. This series focuses on providing robust security solutions against invasive and noninvasive attacks through features like active die shields and encrypted key storage. The DS28E36 specifically targets IoT and embedded systems requiring high-assurance authentication.

Specialized ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices/Maxim Integrated for current equivalent products within the DeepCover portfolio.