My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX66140E-000AA+
- Part No.:
- MAX66140E-000AA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
MAX66140E-000AA+.pdf
- Description:
- RFID TAG R/W 13.56MHZ CARD
- Quantity:
- Payment:
- Shipping:
Inventory:1,330
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX66140E-000AA+ from Maxim Integrated is an ISO 15693-compliant secure memory IC integrating 1024-bit user EEPROM, 64-bit UID, 64-bit secret key, and a 512-bit SHA-1 engine for challenge-response authentication. It operates at 13.56MHz with full support for AFI/DSFID, block-level write protection, EPROM-emulation mode, and read protection on Page 3 - deployed in fleet driver ID cards requiring tamper-resistant credential storage.
For engineers reviewing the MAX66140E-000AA+ datasheet, MAX66140E-000AA+ pinout, MAX66140E-000AA+ application, or MAX66140E-000AA+ equivalent, key selection considerations include ISO 15693 RF interface compliance, 200,000-cycle EEPROM endurance, 40-year data retention, SHA-1 MAC generation capability, and parasitic power operation without external VCC.
Technical Context
The MAX66140E-000AA+ implements a fully autonomous ISO 15693 Mode 1 RF front-end with dual subcarrier (423.75kHz/484.28kHz) and dual data-rate (6.6kbps/26.69kbps) uplink modulation, plus ASK downlink using 1/4 or 1/256 pulse-position coding. Its SHA-1 engine computes 160-bit MACs over EEPROM contents and the 64-bit secret to enable mutual authentication during both read and write operations.
Memory organization comprises 19 × 8-byte blocks: 16 user EEPROM blocks (grouped into four 256-bit pages), one 64-bit secret block, and two 8-byte control/register blocks. Each user block includes a readable write-cycle counter; page-level lock bits and EPROM-emulation mode are configurable per page, with Page 3 supporting optional read protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Standard | Fully compliant with ISO/IEC 15693 and ISO/IEC 18000-3 Mode 1 - ensures interoperability with commercial RFID readers and infrastructure. |
| Carrier Frequency | 13.560 MHz ±7 kHz - enables operation within global ISM band tolerance for contactless identification systems. |
| User Memory | 1024-bit EEPROM (16 × 8-byte blocks) organized as 4 pages - supports secure credential storage with block-level write-cycle counters. |
| Authentication Engine | 512-bit SHA-1 core generating 160-bit MACs - provides symmetric cryptographic verification of data integrity and origin using device secret. |
| Endurance & Retention | 200,000 write/erase cycles minimum at +25°C; 40-year data retention minimum - suitable for long-life asset tagging and access credentials. |
| Power Source | Parasitic RF coupling only - no external power supply required; activates at ≥110.5 dBµA/m magnetic field strength (MAX66140E variant). |
| Operating Temp | -25°C to +50°C - validated for use in vehicle-mounted driver ID cards and indoor access control badges. |
Pinout & Package
MAX66140E-000AA+ uses an ISO Card form factor (credit-card-sized laminated module) with no exposed pins or solderable terminals. The device interfaces exclusively via its integrated 13.56MHz antenna coil; all I/O is wireless and contactless. No PCB-level pinout applies - connection is achieved through magnetic coupling to an external reader antenna.
Key Features
| Feature | Design Value |
|---|---|
| ISO 15693 Full Compliance | Supports all mandatory commands (Inventory, Select, Stay Quiet, Reset to Ready), AFI/DSFID, Option_flag, Subcarrier_flag, and Data_rate_flag - eliminates protocol integration risk in certified reader designs. |
| Secure Authentication | SHA-1 engine computes MAC over arbitrary EEPROM content + 64-bit secret - enables host-side verification of both read and write transactions without exposing secret key. |
| Configurable Memory Protection | Per-page write lock and EPROM-emulation mode - allows permanent locking of credential data after personalization while retaining read access. |
| Read Compatibility | Backward-compatible with existing 1kb ISO 15693 products - permits drop-in replacement in legacy reader ecosystems without firmware changes. |
| Page 3 Read Protection | Optional read-lock on final memory page - strengthens authentication by hiding critical keys or MAC seeds from unauthorized read attempts. |
Applications
| Driver Identification (Fleet) | Access Control |
|---|---|
Use Scenario: Embedded in vehicle-mounted ID cards used by commercial fleet drivers to log into telematics systems and authorize fuel dispensing. IC Role / Device Role / Timing Role: Secure credential storage and cryptographic authentication endpoint - responds to reader challenges using SHA-1 MAC to prove card legitimacy. Use Value: Prevents credential cloning via hardware-enforced secret isolation and write-protection of identity data across 200k+ operational cycles. |
Use Scenario: Integrated into office building access badges that must resist physical extraction and logical replay attacks. IC Role / Device Role / Timing Role: Tamper-resistant memory and authentication co-processor - validates host-read requests using challenge-response handshake before releasing UID or encrypted payload. Use Value: Enables FIPS-aligned physical access systems with 40-year data retention and ISO 15693 interoperability across multi-vendor reader deployments. |
| eCash Transactions | Asset Tracking |
Use Scenario: Used in disposable transit payment tokens where balance and transaction history must be cryptographically signed and non-repudiable. IC Role / Device Role / Timing Role: Secure value storage and MAC generator - signs balance updates with SHA-1 using internal secret, enabling offline verification by fare gates. Use Value: Supports offline eCash validation without network dependency, leveraging 10ms programming time and 26.69kbps high-speed read for rapid tap-and-go throughput. |
Use Scenario: Embedded in high-value industrial tools or medical equipment for lifecycle tracking and maintenance authorization. IC Role / Device Role / Timing Role: Long-term secure identifier and usage log - stores calibrated timestamps, service records, and ownership history in write-protected EEPROM pages. Use Value: Guarantees traceability integrity over 40 years with 200k-cycle endurance, meeting ISO 13485 and IEC 62304 requirements for regulated asset management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure RFID memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP NT3H2111W0FHKH | 1KB NFC Forum Type 4B compliant; uses AES-128 instead of SHA-1; requires external power or NFC field; no parasitic-only mode. | Designed for smartphone-tap interactions (NFC), not ISO 15693 reader ecosystems; lacks native AFI/DSFID and subcarrier flexibility. | Select when NFC smartphone compatibility is required and SHA-1 is not mandated; avoid for legacy ISO 15693 infrastructure. |
| STMicroelectronics ST25DV02K | 2KB EEPROM; I²C + RF dual-interface; supports EAL5+ certified crypto coprocessor; operates at same 13.56MHz but with different command set. | Targets industrial IoT nodes needing wired backup interface; higher cost and larger footprint than MAX66140E-000AA+. | Choose when dual-interface (I²C + RF) or Common Criteria certification is required; not a direct functional substitute for pure ISO 15693 credential use cases. |
Compared with NT3H2111W0FHKH and ST25DV02K, the MAX66140E-000AA+ delivers dedicated ISO 15693 compliance, parasitic-only operation, and SHA-1-based mutual authentication optimized for cost-sensitive, long-lifecycle credential applications - without requiring NFC handsets or dual-interface complexity.
Availability
MAX66140E-000AA+ is available at Aetrix Electronics and suitable for driver identification (fleet), access control, eCash, and asset tracking applications requiring stable component supply, RoHS-compliant packaging, and long-term lifecycle assurance.
Supply support for MAX66140E-000AA+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in analog, mixed-signal, and secure ICs for industrial, automotive, and communications markets.
The MAX66140 product line delivers ISO 15693-compliant secure memory solutions targeting contactless credentialing systems where cryptographic authentication, long-term data integrity, and reader interoperability are essential.
FAQ
What is the operating temperature range for the MAX66140E-000AA+?
The MAX66140E-000AA+ is specified for operation from -25°C to +50°C. This range is validated for use in vehicle-mounted driver ID cards and indoor access control badges where ambient conditions remain within these limits. The device's parasitic power architecture and EEPROM endurance metrics are guaranteed across this full temperature span.
Does the MAX66140E-000AA+ require an external power supply?
No, the MAX66140E-000AA+ operates solely via parasitic RF coupling - it draws energy directly from the 13.56MHz magnetic field generated by the reader antenna. No VCC, ground, or external power connections are needed. Activation occurs at ≥110.5 dBµA/m field strength, and internal regulation ensures stable operation across compliant reader fields.
How does the SHA-1 engine in the MAX66140E-000AA+ support authentication?
The MAX66140E-000AA+ integrates a dedicated 512-bit SHA-1 engine that computes a 160-bit Message Authentication Code (MAC) using both the 64-bit secret and selected EEPROM data. During challenge-response, the host sends a random challenge; the MAX66140E-000AA+ returns the MAC, proving knowledge of the secret without exposing it - enabling secure mutual authentication for reads and writes.
Can the MAX66140E-000AA+ be used in existing ISO 15693 reader systems?
Yes, the MAX66140E-000AA+ is fully backward-compatible with existing 1kb ISO 15693 reader systems. It supports all mandatory commands (Inventory, Select, Stay Quiet, Reset to Ready), AFI/DSFID, Option_flag, and standard modulation schemes - allowing seamless integration without reader firmware updates or hardware modifications.
What memory protection features does the MAX66140E-000AA+ provide?
The MAX66140E-000AA+ offers per-page write protection, EPROM-emulation mode (preventing further writes after first program), and optional read protection on Page 3. Each of the four 256-bit EEPROM pages can be independently locked; Page 3's read lock enhances authentication strength by concealing critical keys or MAC seeds from unauthorized interrogation.
MAX66140E-000AA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- iButton®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Style:
- Card
- Technology:
- Passive
- Frequency:
- 13.56MHz
- Memory Type:
- Read/Write
- Writable Memory:
- 1kB (User)
- Standards:
- ISO 15693, ISO 18000-3
- Operating Temperature:
- -25°C ~ 50°C
- Size / Dimension:
- 3.370" L x 2.125" W (85.60mm x 53.98mm)
MAX66140E-000AA+ FAQ
1.How can I place an order for MAX66140E-000AA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX66140E-000AA+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX66140E-000AA+ reliable?
The price and inventory of MAX66140E-000AA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX66140E-000AA+ is usually 5 days.
3.What payment methods are accepted for MAX66140E-000AA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX66140E-000AA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX66140E-000AA+?
MAX66140E-000AA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX66140E-000AA+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX66140E-000AA+?
For technical support, including MAX66140E-000AA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX66140E-000AA+ requirements.
6.How does Aetrix verify that MAX66140E-000AA+ is sourced from the original manufacturer or authorized distributors?
All MAX66140E-000AA+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX66140E-000AA+ meets industry standards.
7.What is the process for return or replacement of MAX66140E-000AA+?
All MAX66140E-000AA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX66140E-000AA+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX66140E-000AA+ part is unused and in its original packaging.
Return procedure for MAX66140E-000AA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX66140E-000AA+ Tags
-
SL3S1013FTB0,115
NXP Semiconductors
-
NTP53321G0JHKZ
NXP Semiconductors
-
HTSH4801ETK,118
NXP Semiconductors
-
NTA53321G0FHKZ
NXP Semiconductors
-
RF-HDT-DVBE-N2
Texas Instruments
-
RF-HDT-DVBB-N2
Texas Instruments
-
HT2DC20S20/F/RSP
NXP Semiconductors
-
TRPGR30ATGA
Texas Instruments
-
TRPGR30ATGC
Texas Instruments
-
RI-TRP-DR2B-40
Texas Instruments
-
V680-D1KP52MT
Omron Automation and Safety
-
HTMS8001FTB/AF,115
NXP USA Inc.
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
