125KHZ, READ/WRITE AES128 SECURE TRANSPONDER
The EM4582 is a contactless Read/Write RF transponders built by EM for application requiring high security level.
The module is equipped with an AES encryption unit, customer EEPROM, and 125kHz LF front end for a LF coil antenna, used for communication as well as wireless power supply. The IC is powered by harvesting energy from a continuous 125 kHz magnetic field via an external coil, which together with the integrated capacitor form a resonant circuit. The IC reads out data from its internal EEPROM and sends it out by switching on and off a resistive load in parallel to the coil using a large modulation index. Commands and EEPROM data updates can be executed by AM modulation of the 125 kHz magnetic field. Except for the coil inductor, all components are built in a single
transponder with no external parts required.
The product is designed to answer specific applications requiring
security control and access of all type and is also automotive
compliant for immobilization applications.
EM4582 Applications:
Car immobilizer
Building security access
Hotel room access
Company badges
Parking lot security and access
EM4582 Features:
AES128 on chip encryption unit
Various types of AES authentication including MUTUAL authentication based on ISO9798-2 standard
32 bits of Unique Identifier
Approx. 8.5kBits of free USER MEMORY (UM)
32 bit password code and write protection
Power check for EEPROM write operation
EEPROM data retention of 20 years
Transmission rate of 4k bauds
FIPS-PUB 140-2 compliant True Random Number Generator (TRNG)
Integrated resonance capacitor of 200pF with ±15% tolerance
Typical operational temperature from -40°C to +85°C
Delivery form of sawn Wafer |
