HF 13.56 MHzHID Global

iCLASS Seos

Name: HID Global iCLASS Seos
Brand: HID Global

The HID Global iCLASS Seos is an HF 13.56 MHz RFID tag IC, with 8 KBytes (Seos), 2k bit or 32k bit (iCLASS), 512 bits (Prox), operating at 13.56 MHz (Seos and iCLASS), 125 kHz (Prox), under ISO/IEC 14443-A (Seos), ISO 15693 (iCLASS) ISO 11784/11785 (Prox).

Multi-tech credential with Seos secure identity object

Official Datasheet ↗

Frequency

13.56 MHz (Seos and iCLASS), 125 kHz (Prox)

Protocol

ISO/IEC 14443-A (Seos), ISO 15693 (iCLASS), ISO 11784/11785 (Prox)

Memory

8 KBytes (Seos), 2k bit or 32k bit (iCLASS), 512 bits (Prox)

Interface

RF (contactless)

Temp Range

-40°C to +70°C operating, -35°C to +50°C storage

Form Factor

ISO/IEC 7810 card, 54mm x 85mm x 0.8mm, composite 60% PVC / 40% PET laminated

Full Specifications

Manufacturer	HID Global
Frequency Category	HF 13.56 MHz
Frequency	13.56 MHz (Seos and iCLASS), 125 kHz (Prox)
Protocol	ISO/IEC 14443-A (Seos), ISO 15693 (iCLASS), ISO 11784/11785 (Prox)
Memory	8 KBytes (Seos), 2k bit or 32k bit (iCLASS), 512 bits (Prox)
Interface	RF (contactless)
Temperature Range	-40°C to +70°C operating, -35°C to +50°C storage
Form Factor	ISO/IEC 7810 card, 54mm x 85mm x 0.8mm, composite 60% PVC / 40% PET laminated
Security	Extended Privacy Support (Seos), Static UID optional (Seos), multiple logical records and data groups, HID Global SIO Data Object Support

Engineering Brief

HID Global's iCLASS Seos/iCLASS/Prox Triple Technology Smart Card combines three RF technologies in one credential: 13.56 MHz Seos (ISO 14443-A, 8KB, up to 848kbps), 13.56 MHz iCLASS (ISO 15693, 2k/32k bit), and 125 kHz Prox (ISO 11784/11785, 512 bits). The card enables seamless migration from legacy Prox systems to advanced Seos security while maintaining backward compatibility. Operating from -40°C to +70°C, it supports physical access, OTP-based IT authentication, and mobile credentials with extended privacy features and multiple on-card applications.

Typical Applications

Standards & Compliance

Frequently Asked Questions

What technologies does the HID iCLASS Seos credential support?

The iCLASS Seos credential supports three technologies: 13.56 MHz Seos (ISO 14443-A with 8KB memory), 13.56 MHz iCLASS (ISO 15693 with 2k or 32k bit options), and 125 kHz Prox (ISO 11784/11785 with 512 bits). This enables migration from legacy Prox systems while maintaining backward compatibility.

How much memory does the HID iCLASS Seos chip have?

The Seos component has 8 KBytes of memory, the iCLASS component offers either 2k bit or 32k bit configurations, and the Prox component contains 512 bits. The multi-technology design allows different memory allocations for each RF interface.

What security features does HID iCLASS Seos provide?

HID iCLASS Seos includes Extended Privacy Support, optional Static UID, multiple logical records and data groups, and HID Global SIO (Secure Identity Object) Data Object Support. These features enable secure physical access control and OTP-based IT authentication.

What is the operating temperature range for iCLASS Seos cards?

HID iCLASS Seos cards operate from -40°C to +70°C, making them suitable for both indoor and outdoor access control installations in extreme environmental conditions.

Can HID iCLASS Seos credentials work with existing Prox readers?

Yes, iCLASS Seos credentials include 125 kHz Prox technology (ISO 11784/11785) for backward compatibility with legacy Prox readers, enabling phased migration to Seos technology without replacing all readers simultaneously.

What data transfer speed does the Seos interface support?

The 13.56 MHz Seos interface supports data transfer rates up to 848 kbps using ISO 14443-A protocol, providing fast communication for secure authentication and multi-application credential use cases.

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