MAX66242

DeepCover Secure Authenticator with ISO 15693, I²C, SHA-256, and 4Kb User EEPROM

Industry's First SHA-256 Symmetric Key-Based Authenticator with I²C Master Port

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Recommended for New Designs

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Overview

Features and Benefits
Product Details

Features and Benefits

Complete Counterfeit/Cloning/IP Protection Engine
- SHA-256 Engine Runs a Symmetric Key-Based Bidirectional Secure Authentication
- Strong Authentication Achieved with a High Bit Count, User-Programmable Secret, and Input Challenge
- Batteryless RF Communication
- 4096 Bits of User EEPROM with User-Programmable Memory
- Memory R/W Protection Options Including OTP/EPROM Emulation Mode
- Unique Factory-Programmed 64-Bit Identification Number
- Integrated 32-Byte SRAM Buffer Enables Faster HF-to-I²C Transactions
Flexible Connection and Communication Capabilities Support a Wide Range of Applications
- Programmable I/O (PIO) Can Be Configured as a Wake-Up or Monitoring/Control Signal
- HF Standards ISO/IEC 15693 and 18000-3 MODE1 Compatible (13.56 MHz ±7kHz Carrier Frequency)
- I²C Interface—Master/Slave Port Eliminates Host Microcontroller for Sensor-Tag Applications
- Energy Harvesting V_OUT Pin for Powering External Components
- Optional 3.3V Supply Voltage Fits Line and Battery-Powered Applications
- -40°C to +85°C Operating Temperature Range
Enables Robust Design
- ±4kV HBM ESD Protection on PIO, ±2kV on All Other Pins

Product Details

DeepCover^® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible.

Our Secure Drug Delivery video shows how Maxim security products can be used to authenticate remote drug delivery.

The DeepCover Secure Authenticator (MAX66242) is a transponder IC that combines an ISO/IEC 15693 and ISO 18000-3 Mode 1-compatible RF front-end, an I²C front-end, a FIPS 180-based SHA-256 engine and 4096 bits of user EEPROM in a single chip. A bidirectional security model enforces two-way authentication between a host system and the MAX66242. Each device has its own guaranteed unique 64-bit ROM ID that is factory programmed into the chip. This ROM ID is used as a fundamental input parameter for cryptographic operations and serves as an electronic serial number within the application.

In addition to the RF interface, the MAX66242 also has an I²C interface, which can operate as a slave or master port. When acting as a master, the MAX66242 can gather information from a connected sensor or peripheral device and relay its data via the RF port. When acting as a slave, the device can serve as an intermediary between a connected host and an RF reader. The MAX66242 can harvest energy from an active RF field. The configurable supply output can deliver up to 5mA given adequate field strength.

Applications

Access Control
Asset Tracking
Medical Sensor Authentication and Calibration
Printer Cartridge Configuration and Monitoring
System Intellectual Property Protection

Product Categories

Embedded Security and 1-Wire
- Secure Authenticators
- NFC/RFID Products

Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA). To request an NDA, click here.

Comparable Parts Click to see all in Parametric Search

Product Lifecycle Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (2)

MAX66242EVKIT

Tag Evaluation Kit for the MAX66242, Requires NFC Reader

MAX66300-24XEVKIT

Reader and Tag Evaluation Kit for the MAX66300/MAX66240/MAX66242

MAX66242EVKIT

View Detailed Evaluation Kit Information

The MAX66242 evaluation kit (EV kit) reference board is a ready-to-use PCB that showcases one of Maxim’s MAX662XX family of secure dual-interface tag/transponder ICs. The board is built with a octagonal-shaped antenna construction (see the EV Kit Photo and Figure 2) tuned to 13.56MHz.

The EV kit is a platform that allows designers, test, and systems engineers to evaluate our MAX66242 tag solution. The EV kit allows users to evaluate the performance and capabilities of certain key features of the part and is a great platform to get started on a new NFC/RFID tag design.

Applications

Access Control
Asset Tracking
Medical Sensor Authentication and Calibration
Printer Cartridge Configuration and Monitoring
System Intellectual Property Protection

Features & Benefits

HF Interface at 13.56MHz
I²C with Communications with the On-Board Temperature Sensor IC (DS7505)
User EEPROM Authenticated Memory Page Read/Write Transactions
User EEPROM Page/Block Read/Write Transactions
Secure Transaction that Writes “Secret Keys” and Computes Message Authentication Code
Energy-Harvested V_OUT Used to Power an LED On/Off

MAX66300-24XEVKIT

View Detailed Evaluation Kit Information

The MAX66300-24x evaluation system (EV system) comprises a MAX66300 evaluation kit (EV kit) and a MAX66242 tag. The MAX66300 EV kit combines a RFID reader for contactless communication at 13.56MHz and a SHA-256 secure authenticator coprocessor. The RFID reader covers the ISO 15693 standard and the authenticator coprocessor is based on the FIPS 180-4 standard. The MAX66242 tag operates as a solution covering the ISO 15693 standard. By pairing the MAX66300 EV kit with the MAX66242 EV kit into an EV system, EV kit software can operate to show a secure challenge and response authentication and other part specific functionality.

Applications

Asset-Tracking Readers
Authentication of Consumables
Blood Glucose Meters/Monitors
Handheld Reader Modules
Readers in Printers (Ink Cartridge)
Secure Access Control

Features & Benefits

A Secure, Contactless RFID Reader (MAX66300)
- 3.3V or 5V AFE Operation
- UART and SPI Interface Support Through the MAXQ610
- Configuration for Lower Power Systems with Direct Antenna Connections
- On-Board 13.56MHz and 24MHz Oscillators
- Symmetric Key-Based Secure Authentication System
- Pushbuttons for Board Reset and MAX66300 Reset
- Port Select Switch Control
- Jumpers for SPI, UART, and Control Signals
Protected Tag Solution with Peripheral Linking (MAX66242)
- HF Interface at 13.56MHz
- User EEPROM Authenticated Memory Page Read/ Write Transactions
- User EEPROM Page or Block Read/Write Transactions
- Secure Transactions to Write Secret Keys and Compute MACs
- Energy Harvested V_OUT Used to Power an LED On/Off
- I²C communication with On-Board Temperature Sensor IC, DS75S
- Also Supports MAX66240 without I²C Interface (Tag Not Included in EV Kit)
MAX66300-24x EV System Software Available

Documentation & Resources

Data Sheets

MAX66242: DeepCover Secure Authenticator with ISO 15693, I²C, SHA-256, and 4Kb User EEPROM Data Sheet (Rev. 3)
4/12/2019

PDF

468K

Reliability Data

MAX66242 Reliability Data
1/12/2023

PDF

81K

Videos

How to Quickly Implement NFC/RFID and Advanced Security on Mobile Applications for iOS and Google Play
11/30/2022

Application Notes

Design Notes

Wirelessly Powering and Accessing a 1-Wire Network
3/14/2019

Technical Articles

How Secure Authenticators and Coprocessors Can Simplify Cryptography
8/3/2020
Cryptography: Planning for Threats and Countermeasures
7/20/2020
Cryptography: Is a Hardware or Software Implementation More Effective?
7/8/2020
Cryptography: A Closer Look at the Algorithms
6/3/2020
Cryptography: Fundamentals of the Modern Approach
5/29/2020
Cryptography: How It Helps in Our Digital World
5/26/2020
Secure Authentication for Medical Disposables
4/5/2019
Using an NFC System to Wirelessly Power and Access a 1-Wire Network
3/14/2019
Need NFC/RFID? Tomorrow Is Today in This Constant State of Innovation
11/5/2015
Golf Offers Insight to Wearable IoT Technology Trends
4/13/2015

Tools & Simulations

Design Tools

DeepCover® Security Lab

Reference Designs (1)

MAXREFDES9001

Secured IoT LoRa Sensor Nodes using the DS28S60 and Google Cloud

MAXREFDES9001

Secured IoT LoRa Sensor Nodes using the DS28S60 and Google Cloud

MAXREFDES9001

Secured IoT LoRa Sensor Nodes using the DS28S60 and Google Cloud

View Detailed Reference Design Information

Features & Benefits

Maxim’s DS28S60 ChipDNA^™ technology protects private and secret keys against invasive attacks.
Maxim’s DS28S60 provides end-to-end security using hardware-based ECDSA authentication, ECDH key exchange and AES-GCM authenticated encryption.
Complete low-power sensor node board design
Sample LoRaWAN gateway implementation based on Raspberry Pi
Sample Google Cloud application showcasing end-to-end security with the sensor board’s DS28S60 including ECDH key exchange, and AES-GCM secure communication Source code
Peripheral Module - compatible sensor expansion port
Raspberry Pi enables portable LoRaWAN Gateway deployment

Parts Used

Resources

MAXREFDES9001 Design Files

ZIP

1 M

Product Recommendations

MAX66242 Companion Parts

Recommended Related Parts

MAX66300.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number	Material Declaration	Reliability Data	Pin/Package Drawing	CAD Symbols, Footprints & 3D Models
MAX66242E/W+	Material Declaration	Reliability Data	NA-BUMPED_CHIP-N/A	Ultra Librarian SamacSys
MAX66242ESA+	Material Declaration	Reliability Data	Small-Outline IC, Narrow (0.15in)	Ultra Librarian SamacSys
MAX66242ESA+T	Material Declaration	Reliability Data	Small-Outline IC, Narrow (0.15in)	Ultra Librarian SamacSys
MAX66242ETB+	Material Declaration	Reliability Data	Thin Dual Flatpack No Leads	Ultra Librarian SamacSys
MAX66242ETB+T	Material Declaration	Reliability Data	Thin Dual Flatpack No Leads	Ultra Librarian SamacSys
MAX66242ISA-A+	Material Declaration	Reliability Data	Small-Outline IC, Narrow (0.15in)	Ultra Librarian SamacSys
Wafer Fabrication Data		MAX66242 Reliability Data

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Evaluation Boards

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.