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Analog Devices Inc./Maxim Integrated MAX66240ESA+T
- Part No.:
- MAX66240ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized ICs
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Description:
- IC DEEPCOVER SEC AUTH 8SOIC
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment:
- Shipping:
Product Details
MAX66240ESA+T - ISO 15693 Secure Authenticator
MAX66240ESA+T is a Maxim Integrated / Analog Devices DeepCover contactless secure authenticator combining a 13.56 MHz ISO 15693 RF front end, a SHA-256 engine and 4 Kbits of user EEPROM in an 8-SOIC narrow-body package.
The exact ordering code and technical characteristics are based on the manufacturer MAX66240 Rev. 5 data sheet and ordering guide.
Overview
The MAX66240 is an RF-powered transponder for challenge-response authentication and protected user data. Its ISO/IEC 15693 and ISO 18000-3 Mode 1 compatible interface communicates through an external antenna, while a hardware SHA-256 engine supports symmetric-key authentication. A factory-programmed 64-bit ROM ID identifies each device.
Key Advantages
Hardware SHA-256 supports challenge-response verification without a wired data interface.
4 Kbits of EEPROM provide configurable read/write protection and one-time-programmable emulation options.
The factory-programmed 64-bit ROM ID provides a device-specific identifier for application protocols.
Only AC1 and AC2 connect to the external RF antenna in the 8-SOIC pinout.
Feature Summary
ISO/IEC 15693 and ISO 18000-3 Mode 1 compatible, with up to 26 kbps communication.
Dedicated FIPS 180-based SHA-256 computation engine and programmable secret.
4,096 bits of user EEPROM with programmable protection options.
MAX66240ESA+T denotes 8-pin SO and tape-and-reel packaging in the manufacturer ordering guide.
Package & Footprint
The exact MAX66240ESA+T code uses the manufacturer's 8-pin, 150-mil narrow SO package (S8+2 package code). The LCDChip registry label is 8-SOIC; the manufacturer land pattern, not the generic photo, controls PCB dimensions. The +T suffix identifies tape-and-reel supply.
- Confirm S8+2 outline and land pattern against manufacturer package data.
- Keep the antenna loop and matching network consistent with the RF design guidance.
- Leave every D.N.C. pin electrically unconnected.
The image is a generic package-view aid, not a device-specific pin map.
Pin Functions
The manufacturer's SO top-view pin table assigns only two antenna connections.
Use the official SO top-view drawing for orientation and the latest controlled package outline before PCB release.
Key Specifications
| Device function | Contactless secure authenticator / transponder |
|---|---|
| RF interface | ISO/IEC 15693, ISO 18000-3 Mode 1 compatible |
| Carrier frequency | 13.56 MHz nominal; 13.553–13.567 MHz specified range |
| RF communication rate | Up to 26 kbps |
| Authentication engine | Hardware SHA-256 |
| User EEPROM | 4,096 bits |
| Unique identifier | Factory-programmed 64-bit ROM ID |
| EEPROM endurance | 100,000 write/erase cycles at +85 C, per data-sheet conditions |
| Operating temperature | -40 C to +85 C |
| Package | 8-pin narrow SO, 150 mil; registry 8-SOIC |
| Ordering media | Tape and reel; manufacturer ordering guide lists 2,500 pieces |
Protocol timing, RF field levels and memory endurance depend on the conditions in the controlled data sheet.
Replacement Considerations
MAX66240ESA+ is the same manufacturer's 8-SO order option without the tape-and-reel suffix. Before changing ordering media or choosing another secure authenticator, verify the exact part number, antenna tuning, pin assignment, memory map, secret provisioning, host protocol and ISO 15693 timing behavior. No unconditional drop-in substitute is asserted here.
Manufacturer Information
MAX66240 originated with Maxim Integrated and is documented by Analog Devices. The manufacturer currently labels this family not recommended for new designs; new platforms should review lifecycle status and migration options with the manufacturer before commitment.
Applications
Verify replaceable medical sensors or printer consumables through a contactless reader.
Bind an asset record to a factory-programmed device identifier and protected user data.
Use challenge-response checks within a system-level credential design.
Protect application-specific configuration data against unauthorized modification.
Quality & Authenticity
Verify the complete MAX66240ESA+T marking and reel documentation, package outline and manufacturing traceability. Provision secrets using a controlled workflow; the presence of a SHA-256 engine alone does not establish system-level security.
FAQ
What interface does MAX66240ESA+T use?
It communicates over a 13.56 MHz ISO 15693-compatible RF antenna interface through AC1 and AC2.
What does +T indicate?
The manufacturer's ordering guide identifies tape-and-reel packaging for this 8-pin SO code.
Are the other six leads ground or power pins?
No. The official SO pin table marks pins 1 and 4–8 D.N.C.; leave them unconnected.
Can another ISO 15693 tag replace it directly?
No. Authentication commands, secrets, memory protection, timing and antenna behavior must be checked together.
Engineering Notice
Consult the latest Analog Devices data sheet, errata and package drawing before final schematic, antenna, firmware and PCB approval. The published data-sheet errata identify specific ISO 15693-3 timing exceptions; verify the intended reader implementation. This product is marked not recommended for new designs by the manufacturer.
MAX66240ESA+T Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- DeepCover®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- DeepCover Secure Authenticator
- Applications:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
- Grade:
- -
- Qualification:
- -
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