DS28S60Q+

Specialized ICS Overview

The DS28S60Q+ is a DeepCover cryptographic coprocessor integrating hardware-based security functions for embedded systems. It features an SPI slave interface operating up to 20MHz and supports ECDSA-P256, SHA-256, AES-128, and ECDHE-P256 operations. The device includes 3.6KB of secured flash memory and a NIST SP800-90B compliant true random number generator (TRNG). Powered by Maxim’s ChipDNA physically unclonable function (PUF), it generates unique keys without static storage. Operating voltage ranges from 1.62V to 3.63V with a power-down current of 100nA. It is housed in a 12-pin TDFN package.

Specialized ICS Feature Summary

• Hardware-accelerated cryptography including ECDSA-P256, SHA-256, AES-128, and ECDHE-P256
• ChipDNA PUF technology for generating unique, unclonable device keys
• 3.6KB secured flash memory for storing keys, certificates, and secrets
• High-speed 20MHz SPI interface supporting Mode 0 and Mode 3

Specialized ICS Applications

• Internet of Things (IoT) device security
• Key management and exchange
• End-to-end encryption
• End-point authentication
• Prevention of counterfeit products

Specialized ICS Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and temperature range. The 'Q' suffix typically indicates automotive-grade qualification or specific commercial variants depending on the manufacturer's current nomenclature standards. Confirm RoHS compliance status via the datasheet revision history. Ensure supply chain sources provide valid traceability for secure components.

Specialized ICS Selection Notes

Select this component when fixed-function cryptographic acceleration is required without firmware development overhead. It is suitable for applications needing high-speed SPI communication up to 20MHz. Consider the 1.62V to 3.63V supply range for low-voltage embedded designs. The 12-TDFN package is appropriate for space-constrained surface-mount layouts requiring thermal dissipation through the exposed pad.

Specialized ICS Part Context

The DS28S60 belongs to the DeepCover family of secure authenticators and coprocessors. It complements other Maxim Integrated security solutions by providing a standalone cryptographic engine that offloads processing from the main host microcontroller. The Q+ variant denotes a lead-free, RoHS-compliant version packaged in a 12-TDFN format, designed for industrial and automotive environments.

Specialized ICS Replacement Considerations

Direct pin-compatible replacements within the same family include the DS28E40 or DS28E38, though these utilize different interfaces such as I2C or 1-Wire rather than SPI. Verify command set compatibility if migrating between different DeepCover series. No identical SPI-based functional substitutes are explicitly listed in the provided documentation.