LEGIC SM-4200 Security Module

The right choice for your RFID solutions

The SM-4200 security module support all relevant RFID standards based on 13.56 MHz such as ISO 14443 A + B, ISO 15693, LEGIC RF, Inside Secure and NFC. Its compact size and patented wake-up circuitry make it the right choice for all kinds of security applications.


Case: ÖKK Insurances

A single module solution for

A wide range of RFID applications

  • Compatible with LEGIC advant and prime as well as third-party smartcards
  • Supports all relevant communication protocols
  • Suitable for line- and battery-powered readers
  • NFC communication to Android and iOS devices

NFC connection for secure Apple Watch identification

Technical data of


RFID ISO 14443 A + B
ISO 15693
LEGIC RF standard
Inside Secure *
Sony Felica **
ST SR series
RFID security elements Master-Token System-Control
Mutual authentication
NXP key diversification
AES 128/256 Bit, 3DES, DES, LEGIC encoding
DESFire EV2 secure messaging mode
Energy saving options Stop mode: typically 3 μA
Watch mode with RFID based wake-up: typically 20 μA
NFC Peer-to-peer ISO 18092 ***
Communication to Apple Watch ****
Supports Apple licensees implementing ECP 2.0
NFC-HCE support for LEGIC Connect enabled Android devices
Host interface UART with 38,400 or 115,200 baud (RS232 timing)
SPI slave mode 1 or mode 3
Authentication and encryption (optional)
Firmware download Yes

* Read / write access to smartcards based on cyphered Inside Secure technology, such as HID iCLASS®
** Encoding is not integrated
*** ISO 18092 Passive Peer-to-Peer Mode - Initiator, NFC Tags 2, 3, 4 ot integrated
**** Only for participants of Apple’s MFi program 
       (Apple, MFi, GymKit, iOS and Apple Watch are trademarks of Apple, Inc.)

Evaluation Kit

Turn your ideas into reality

LEGIC security modules provide a high degree of flexibility and a unique range of functions:

They can be integrated into versatile of applications and offer easy access to various identification media.
The security modules are designed for use with LEGIC advant and prime and support third-party transponders, such as MIFARE or HID iCLASS®.


Get your EK-4000

  • Evaluation of the performance of the SM-4200 and SM-4500, as well as introduction to their command set
  • Design examples of battery-operated and line-powered readers
  • Entry into the use of the unique LEGIC Master-Token System-Control
  • Use of LEGIC prime and advant smartcards, as well as MIFARE Classic and DESFire
  • Access to HID iCLASS® smartcards