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EM4469 - 512 bit Read/Write Contactless Identification Device

General Description

EM4469 is a CMOS integrated circuit intended for use in electronic Read/Write RF transponders.

The IC is powered by picking the energy from a continuous 125 kHz magnetic field via an external coil, which together with the integrated capacitor form a resonant circuit.

Key Features

  • 512 bit EEPROM organised in 16 words of 32 bits.
  • 32 bit Password read and write protection.
  • 32 bit unique identification number (UID).
  • 10 bit Customer code.
  • Lock feature convert EEPROM words in read only.
  • Multi-purpose encoding (Manchester, Biphase, Miller, PSK, FSK).
  • Multi-purpose data rate from 1 up to 32 Kbaud.
  • Power-check for EEPROM write operation.
  • 100 to 150 kHz frequency range.
  • On-chip rectifier and voltage limiter.
  • No external suppl.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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EM MICROELECTRONIC - MARIN SA EM4469 512 bit Read/Write Contactless Identification Device Description EM4469 is a CMOS integrated circuit intended for use in electronic Read/Write RF transponders. The IC is powered by picking the energy from a continuous 125 kHz magnetic field via an external coil, which together with the integrated capacitor form a resonant circuit. The IC read out data from its internal EEPROM and sends it out by switching on and off a resistive load in parallel to the coil. Commands and EEPROM data updates can be executed by 100% AM modulation of the 125 kHz magnetic field. There are several data rate and data encoding options available. Options are stored in EEPROM Configuration word. Read and write access to EEPROM can be protected by 32 bit password.