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EM4444 - Read/Write UHF Identification Device

General Description

The EM4444 is used in passive UHF Read/Write 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

  • ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ Compatible with UHF read-only and read/write tags (EM4222, EM4122, EM4442) Factory programmed 64 bit serial ID number 7 pages of user programmable and lockable memory (64-bit pages) EEPROM data pages can be transmitted with ID in Tag-Talks-only (TTO) mode. Can be used as OTP device High reading data rate up to 256 kbit/s Frequency independent: typically used at 315 MHz, 433 MHz, 869 MHz, 902 - 928 MHz and 2.45 GHz On-chip oscillator Low voltage operation down to 1.3V -40 to.

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Other Datasheets by EM Microelectronic (Swatch Group)

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EM4425 RAINFC AUTHENTICITY TRANSPONDER IC
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www.DataSheet4U.com EM MICROELECTRONIC - MARIN SA EM4444 512 bit, Read/Write UHF Identification Device Description The EM4444 is used in passive UHF Read/Write 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 ID code or other data is transmitted back to the reader by varying the amount of energy that is reflected back to the reader. It implements the robust and fast anti-collision protocol full compliant with the EM Microelectronic UHF read-only and read/write tags. Data is written to the tag in 64 bit blocks by commanding the chip after its presence had been detected.