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EM4123 - Read-only UHF RFID IC

General Description

The chip is used in passive UHF read-only transponder applications.

It is powered up by an RF beam transmitted by the reader, which is received and rectified to generate a supply voltage for the chip.

Key Features

  • Factory programmed 64 bit ID number.
  • High data rate: Up to 256 kbit/s.
  • Frequency independent: Typically used at 869 MHz, 902 - 960 MHz (versions 001 to 099).
  • On-chip oscillator.
  • On-chip rectifier.
  • Low voltage operation - down to 1.0 V at ambient temperature.
  • Tag Talk Only protocol (TTO).
  • Low power consumption.
  • Low cost.
  • -40° to +85° C operating temperature range Benefits.
  • Anti-collision suited to flux monitoring.
  • Very low consumption.

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Other Datasheets by EM Microelectronic (Swatch Group)

Part Number Description
EM4124 ISO 18000-6C RFID IC
EM4126 CLASS-1 GENERATION-2 (GEN2) RFID
EM4100 Read Only Contactless Identification Device
EM4102 Read Only Contactless Identification
EM4133 Contactless RW Identification

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 Read-only UHF RFID IC EM4123 Description The chip is used in passive UHF read-only transponder applications. It is powered up by an RF beam transmitted by the reader, which is received and rectified to generate a supply voltage for the chip. A pre-programmed code is transmitted to the reader by varying the amount of energy that is reflected back to the reader. It implements a robust and fast anticollision protocol. The chip is frequency independent and can be used for RF coupled applications where reading ranges in excess of 10 m and reading rates of 120 tags per second at 256 kbit/s can be attained. The chip is backscattering data using load modulation. Therefore the reader should be able to detect ASK and PSK modulated carrier.