DS28E83G+T

Specialized ICS Overview

The DS28E83G+T is a radiation-resistant secure authenticator utilizing the 1-Wire interface. It integrates ECC P-256 and SHA-256 cryptographic engines, a FIPS-compatible TRNG, and 10Kb of secured OTP memory. The device operates at 3.3V ±10% (2.97V to 3.63V) within a 0°C to +50°C temperature range. It features a unique factory-programmed 64-bit ROM ID and supports strong pull-up currents up to 15mA for parasite power. The component provides ±8kV HBM ESD protection on the IO pin and includes one configurable GPIO.

Specialized ICS Feature Summary

• Radiation resistance up to 75kGy, allowing programming before sterilization
• Integrated ECC P-256 compute engine for ECDSA signature generation/verification and ECDH key exchange
• SHA-256 compute engine supporting FIPS 180 MAC and FIPS 198 HMAC functions
• 10Kb secured OTP array with 10-year data retention at +85°C

Specialized ICS Applications

• Medical consumables secure authentication
• Medical tools and accessories identification and calibration
• Accessory and peripheral secure authentication
• Secure storage of cryptographic keys for host controllers
• Secure boot or download of firmware and system parameters

Specialized ICS Procurement Notes

Verify the package type matches the application requirements. The 'G' suffix indicates the 2-SFN contact-only package, which lacks an exposed pad and requires an embedded capacitor rather than an external CX component. Confirm that the operating environment remains within the specified 0°C to +50°C range and that the radiation exposure does not exceed 75kGy.

Specialized ICS Selection Notes

Select this component when high radiation tolerance is required alongside secure authentication. The 2-SFN package is suitable for direct electromechanical contact applications but cannot be soldered. Ensure the host controller supports the 1-Wire protocol and can handle the specific timing constraints, such as the extended recovery times required post-radiation exposure.

Specialized ICS Part Context

This part belongs to the DS28E83 DeepCover family of radiation-resistant authenticators. It shares core cryptographic capabilities with other variants in the series but differs in physical packaging. The G variant specifically utilizes the 2-SFN form factor designed for contact-based interfaces, distinguishing it from the TDFN package options available in the same product line.

Specialized ICS Replacement Considerations

Direct replacements include other DS28E83 variants with different packages, such as the DS28E83Q+T (TDFN). When substituting, verify that the new package supports the intended mounting method, as the SFN package is qualified for contact only and not for soldering.