iCLASS Seos vs LEGIC advant ATC1024 / ATC4096

iCLASS Seos multi-frequency (13.56 MHz + 125 kHz) vs LEGIC advant single-band 13.56 MHz. Compare memory, protocols, and cryptographic security features.

Side-by-side specs

Frequency

iCLASS Seos: 13.56 MHz (Seos and iCLASS), 125 kHz (Prox)
LEGIC advant ATC1024 / ATC4096: 13.56 MHz

Protocol

iCLASS Seos: ISO/IEC 14443-A (Seos), ISO 15693 (iCLASS), ISO 11784/11785 (Prox)
LEGIC advant ATC1024 / ATC4096: ATC1024-MV110: ISO 15693; ATC4096-MP311: ISO 14443 A

Memory

iCLASS Seos: 8 KBytes (Seos), 2k bit or 32k bit (iCLASS), 512 bits (Prox)
LEGIC advant ATC1024 / ATC4096: ATC1024-MV110: 944 bytes; ATC4096-MP311: 4096 bytes

Interface

iCLASS Seos: RF (contactless)
LEGIC advant ATC1024 / ATC4096: RF (contactless)

Temp Range

iCLASS Seos: -40°C to +70°C operating, -35°C to +50°C storage
LEGIC advant ATC1024 / ATC4096: —

Form Factor

iCLASS Seos: ISO/IEC 7810 card, 54mm x 85mm x 0.8mm, composite 60% PVC / 40% PET laminated
LEGIC advant ATC1024 / ATC4096: ATC1024-MV110: Wafer; ATC4096-MP311: MOA4 Module, Wafer

Security

iCLASS Seos: Extended Privacy Support (Seos), Static UID optional (Seos), multiple logical records and data groups, HID Global SIO Data Object Support
LEGIC advant ATC1024 / ATC4096: ATC1024-MV110: 64-bit key data transfer encryption, 3DES/DES/LEGIC data storage encryption, Master-Token System-Control (MTSC); ATC4096-MP311: 3DES data transfer encryption…

Spec	iCLASS Seos	LEGIC advant ATC1024 / ATC4096
Frequency	13.56 MHz (Seos and iCLASS), 125 kHz (Prox)	13.56 MHz
Protocol	ISO/IEC 14443-A (Seos), ISO 15693 (iCLASS), ISO 11784/11785 (Prox)	ATC1024-MV110: ISO 15693; ATC4096-MP311: ISO 14443 A
Memory	8 KBytes (Seos), 2k bit or 32k bit (iCLASS), 512 bits (Prox)	ATC1024-MV110: 944 bytes; ATC4096-MP311: 4096 bytes
Interface	RF (contactless)	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	ATC1024-MV110: Wafer; ATC4096-MP311: MOA4 Module, Wafer
Security	Extended Privacy Support (Seos), Static UID optional (Seos), multiple logical records and data groups, HID Global SIO Data Object Support	ATC1024-MV110: 64-bit key data transfer encryption, 3DES/DES/LEGIC data storage encryption, Master-Token System-Control (MTSC); ATC4096-MP311: 3DES data transfer encryption…

Verdict

Choose iCLASS Seos if you need multi-frequency backward compatibility with legacy systems. This credential operates at 13.56 MHz for Seos (ISO 14443-A) and iCLASS (ISO 15693) applications, plus 125 kHz for Prox (ISO 11784/11785) readers. Memory configurations span 512 bits for Prox, 2k or 32k bit for iCLASS, and 8 KBytes (64k bit) for Seos. The Seos secure identity object provides Extended Privacy Support and optional Static UID, allowing organizations to migrate from legacy 125 kHz systems to modern 13.56 MHz infrastructure without replacing all readers simultaneously. The multi-tech design supports HID Global SIO Data Object format and multiple logical records, making it ideal for enterprises upgrading physical access control systems incrementally across large facilities. Choose LEGIC advant ATC1024 / ATC4096 if you require Common Criteria certified cryptography for single-frequency 13.56 MHz deployments. The ATC1024-MV110 offers 944 bytes memory on ISO 15693 with 64-bit key transfer encryption plus 3DES/DES/LEGIC storage encryption. The ATC4096-MP311 provides 4096 bytes on ISO 14443-A with 3DES data transfer encryption, AES-128/256 storage options, and Common Criteria EAL4+ certified hardware—a requirement for government and high-security applications. Both variants include Master-Token System-Control for multi-application management. The LEGIC platform excels in European markets and transit systems requiring strong cryptographic assurance without legacy 125 kHz support. Choose the ATC4096-MP311 specifically when AES-256 encryption or formal security certification is mandated by compliance frameworks.

FAQ

What frequencies do iCLASS Seos and LEGIC advant support?

iCLASS Seos operates at both 13.56 MHz (for Seos and iCLASS modes) and 125 kHz (for Prox mode), enabling compatibility with legacy low-frequency readers. LEGIC advant operates only at 13.56 MHz on either ISO 15693 (ATC1024) or ISO 14443-A (ATC4096) protocols.

Which chip offers more memory capacity?

iCLASS Seos provides up to 8 KBytes (64k bit) in Seos mode, with additional 2k or 32k bit iCLASS memory. LEGIC advant ATC4096-MP311 offers 4096 bytes (32k bit), while the ATC1024-MV110 provides 944 bytes (7.5k bit).

Does LEGIC advant have security certifications that iCLASS Seos lacks?

Yes, the LEGIC advant ATC4096-MP311 features Common Criteria EAL4+ certified hardware and supports AES-128/256 encryption for data storage. iCLASS Seos focuses on Extended Privacy Support and optional Static UID but does not specify Common Criteria certification or AES encryption.

Sourcing iCLASS Seos or LEGIC advant ATC1024 / ATC4096 in volume?

Roxtron builds custom RFID and NFC products around both iCLASS Seos and LEGIC advant ATC1024 / ATC4096. Tell us your project — quantities, form factor, timeline — and we'll come back within 24 hours with pricing and lead times.