MAX66250

RECOMMENDED FOR NEW DESIGNS

ISO 15693, SHA3-256, 256-Bit User EEPROM Secure Authenticator MAX66250 Secure Authenticator Combines FIPS 202-Compliant SHA-3 Challenge and Response Authentication with Secure EEPROM

Analog Devices MAX66250 Product Info

10 February 2026 8

Features

Robust Countermeasures Protect against Security Attacks
- All Stored Data Cryptographically Protected from Discovery
Efficient Secure Hash Algorithm to Authenticate Peripherals
- FIPS 202-Compliant SHA-3 Algorithm for Challenge/Response Authentication
- FIPS 198-Compliant Keyed-Hash Message Authentication Code (HMAC)

Supplemental Features Enable Easy Integration into End Applications
- 17-Bit One-Time Settable, Nonvolatile Decrement-Only Counter with Authenticated Read
- Secure Storage for Secrets
- 256 Bits of Secure EEPROM for User Data
- ISO/IEC 15693: up to 52.97kbps
- Unique and Unalterable Factory-Programmed 64-Bit Identification Number (ROM ID) with Corresponding UID per ISO/IEC 15693
- 150mil, 8-Lead SO Package
- 8mil Thick, 4-Bump AU Bumped, Tested, Diced Wafer

Part details & applications

The MAX66250 secure authenticator combines FIPS 202-compliant Secure Hash Algorithm (SHA-3) challenge and response authentication with secured EEPROM.

The device provides a core set of cryptographic tools derived from integrated blocks including a SHA-3 engine, 256 bits of secured user EEPROM, a decrement-only counter and a unique 64-bit ROM identification number (ROM ID). The unique ROM ID is used as a fundamental input parameter for cryptographic operations and serves as an electronic serial number within the application. The device communicates over an RF interface compliant with ISO/IEC 15693.

APPLICATIONS

Medical Tools/Accessories Authentication and Calibration
Printer Cartridge Configuration and Monitoring
System Intellectual Property Protection
NFC-Enabled Embedded Systems
Asset Tracking
Access Control
Driver Identification
E-Cash

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