MAX66250ESA+

Specialized ICS Overview

The MAX66250ESA+ is a secure authenticator integrating FIPS 202-compliant SHA-3 cryptographic capabilities with secured EEPROM. It features a 256-bit user EEPROM, a 17-bit decrement-only counter, and a unique factory-programmed 64-bit ROM ID used as an electronic serial number. The device communicates via an ISO/IEC 15693 RF interface at 13.56 MHz, supporting data rates up to 52.97 kbps. Electrical characteristics include a typical SHA-3 computation time of 35 ms, EEPROM write endurance of 100k cycles at +85°C, and data retention of 10 years. It operates within a temperature range of -40°C to +85°C in an 8-SOIC package.

Specialized ICS Feature Summary

• FIPS 202-compliant SHA-3 engine for challenge/response authentication and HMAC (FIPS 198)
• 256-bit secured user EEPROM with 100k write cycle endurance and 10-year data retention
• Unique unalterable 64-bit ROM ID compatible with ISO/IEC 15693 UID standards
• 17-bit one-time settable nonvolatile decrement-only counter with authenticated read

Specialized ICS Applications

• Medical tools and accessories authentication and calibration
• Printer cartridge configuration and monitoring
• System intellectual property protection
• NFC-enabled embedded systems
• Asset tracking and access control

Specialized ICS Procurement Notes

Verify the ordering suffix '+' indicates lead-free/RoHS compliance. Confirm the 'ESA' designation corresponds to the 8-SOIC surface-mount package. Ensure the required quantity matches the standard tube packaging or tape-and-reel options if available. Check the specific revision status against the latest Analog Devices documentation.

Specialized ICS Selection Notes

Select this component when ISO/IEC 15693 contactless communication is required alongside robust cryptographic security. The integrated SHA-3 engine supports symmetric key-based bidirectional authentication. Consider the 256-bit EEPROM capacity for secret storage and user data. Verify that the operating field strength requirements align with the reader antenna design specifications.

Specialized ICS Part Context

The MAX66250 is part of the DeepCover secure authenticator family from Analog Devices/Maxim Integrated. It combines RFID reader capabilities with a secure coprocessor. The ESA+ variant specifically denotes the 8-SOIC package form factor with RoHS-compliant materials, distinguishing it from wafer-sawn alternatives.

Specialized ICS Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.