MAX66242ETB-A+

Specialized ICS Overview

The MAX66242ETB-A+ is a DeepCover Secure Authenticator transponder IC in a 10-TDFN package. It integrates an ISO/IEC 15693 and ISO 18000-3 Mode 1 RF front-end, an I²C interface, and a FIPS 180-based SHA-256 engine with 4096 bits of user EEPROM. The device features a guaranteed unique 64-bit ROM ID for cryptographic operations and bidirectional security authentication. It harvests energy from active RF fields, providing up to 5mA via the VOUT pin. Operating voltage is 2.97V to 3.63V, with supply currents of 110µA (active) and 100µA (standby).

Specialized ICS Feature Summary

• Integrates SHA-256 engine for symmetric key-based bidirectional secure authentication.
• Includes 4096 bits of user EEPROM with programmable protection modes (read, write, EPROM emulation, authentication).
• Features factory-programmed unique 64-bit ROM ID serving as electronic serial number.
• Supports both ISO/IEC 15693 and ISO 18000-3 Mode 1 RF standards at 13.56 MHz.

Specialized ICS Applications

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

Specialized ICS Procurement Notes

Verify the specific suffix 'A+' against the manufacturer's official documentation to confirm any variations in manufacturing lot or regional compliance status. Ensure the 10-WFDFN Exposed Pad package matches the target PCB footprint requirements. Confirm that the operating temperature range of -20°C to +85°C meets the environmental specifications of the intended deployment scenario.

Specialized ICS Selection Notes

Select this component when a batteryless RFID solution requiring high-level cryptographic security is necessary. The integrated I²C master port allows the device to act as an intermediary between sensors and readers, eliminating the need for a host microcontroller in sensor-tag applications. Consider the 4096-bit EEPROM capacity and the specific memory protection options required for the application's data integrity needs.

Specialized ICS Part Context

The MAX66242 belongs to the DeepCover® embedded security solutions family by Analog Devices Inc./Maxim Integrated. This series focuses on providing advanced physical security layers for sensitive data storage. The ETB variant specifically denotes the 10-TDFN (3x4) surface-mount package, distinguishing it from other package options within the same functional family.

Specialized ICS Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult the manufacturer's official cross-reference tools or contact technical support directly for verified alternative components.

Specialized ICS FAQ

How does the MAX66242 handle power consumption?

The device operates without a battery by harvesting energy from an active RF field. It draws 110µA during active operation and 100µA in standby mode. The configurable VOUT pin can deliver up to 5mA to power external components if the field strength is adequate.

What memory protection features are available?

The 4096-bit user EEPROM supports four protection modes: read protection, write protection, EPROM emulation mode, and authentication protection. These settings can be applied to individual memory pages and cannot be reversed once activated.

Can the MAX66242 communicate via I²C?

Yes, the device includes an I²C interface that can operate as either a slave or a master port. In master mode, it can gather information from connected sensors and relay the data via the RF port.