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EM4450 - 1-KBit Read/Write Contactless Identification Device

General Description

The EM4450 is a CMOS integrated circuit intended for use in electronic Read/Write RF Transponders.

The chip contains 1K Bit of EEPROM which can be configured by the user, allowing a write inhibited area, a read protected area, and a read area output continuously at power on.

Key Features

  • 1 K bit of EEPROM organized in 32 words of 32 bits.
  • 32 bit Device Serial Number (Read Only Laser ROM).
  • 32 bit Device Identification (Read Only Laser ROM).
  • Power-On-Reset sequence.
  • Power Check for EEPROM write operation.
  • User defined Read Memory Area at Power On.
  • User defined Write Inhibited Memory Area.
  • User defined Read Protected Memory Area.
  • Data Transmission performed by Amplitude Modulation.
  • Two Data Rate Options 2 KBd (Opt64) or 4 KBd (Opt3.

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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 EM4450 1 KBit Read/Write Contactless Identification Device Description The EM4450 is a CMOS integrated circuit intended for use in electronic Read/Write RF Transponders. The chip contains 1K Bit of EEPROM which can be configured by the user, allowing a write inhibited area, a read protected area, and a read area output continuously at power on. The memory can be secured by using the 32 bit password for all write and read protected operations. The password can be updated, but never read. The fixed code serial number and device identification are laser programmed making every chip unique. The EM4450 will transmit data to the transceiver by modulating the amplitude of the electromagnetic field, and receive data and commands in a similar way.