UCODE® G2iM and G2iM+


Product Details

Block Diagram

UCODE G2iM G2iM+ Block Diagram

UCODE G2iM G2iM+ Block Diagram


Key features
  • UHF RFID Gen2 tag chip according EPCglobal v1.2.0
  • 256 bit EPC for UCODE G2iM and up to 448 bit EPC for UCODE G2iM+
  • Up to 640 bit User Memory which can be segmented in the UCODE G2iM+
  • Private User Memory area protected by special User Password
  • Memory read protection
  • Integrated Product Status Flag (PSF)
  • Tag tamper alarm
  • Digital switch
  • Data transfer mode
  • Real Read Range Reduction (Privacy Mode)
  • Conditional Real Read Range Reduction
  • External supply mode
  • Long read/write ranges due to extremely low power design
  • Reliable operation of multiple tags due to advanced anti-collision
  • Broad international operating frequency: from 840 MHz to 960 MHz
  • Data retention: 20 years
  • Wide specified temperature range: -40 °C up to +85 °C


  • 256 bit of EPC memory / up to 448 bit in G2iM+
  • 96 bit Tag IDentifier (TID) including 48-bit factory locked unique serial number
  • 112 bit User TID memory
  • 32 bit Kill Password to permanently disable the tag
  • 32 bit Access Password to allow a transition into the secured state
  • 32 bit User Password to allow access to the private user memory segment
  • Read protection
  • BlockWrite (32 bit)
  • Write Lock
  • BlockPermalock

Key benefits

End user benefit

  • Outstanding User Memory size of 640 bit
  • Prevention of unauthorized memory access through different levels of read protection
  • Indication of tag tampering attempt by use of the tag tamper alarm feature
  • Electronic device configuration and / or activation by the use of the digital switch / data transfer mode
  • Theft deterrence supported by the PSF feature (PSF alarm or EPC code)
  • Small label sizes, long read ranges due to high chip sensitivity
  • Product identification through unalterable TID range, including a 48 bit serial number
  • Reliable operation in dense reader and noisy environments through high interference suppression

Antenna design benefits

  • High sensitivity enables small and cost efficient antenna designs
  • Low Q-Value eases broad band antenna design for global usage

Label manufacturer benefit

  • Consistent performance on different materials due to low Q-factor
  • Ease of assembly and high assembly yields through large chip input capacitance and Polyimide spacer
  • Fast first WRITE or BLOCKWRITE of the EPC memory for fast label initialization

Custom commands

  • PSF Alarm

    Built-in PSF (Product Status Flag), enables the UHF RFID tag to be used as EAS tag (Electronic Article Surveillance) tag without the need for a back-end data base.

  • Read Protect

    Protects all memory content from unauthorized reading.

  • ChangeConfig

    Configures the additional features of the chip like external supply mode, tamper alarm, digital switch, read range reduction, privacy mode activation condition or data transfer.

The UCODE G2iM+ is equipped with a number of additional features. Nevertheless, the chip is designed in a way standard EPCglobal READ/WRITE/ACCESS commands can be used to operate the features. No custom commands are needed to take advantage of all the features in case of unlocked EPC memory.

Markets Fashion (apparel and footwear) Retail Electronics Fast moving consumer goods Asset management Electronic vehicle identification Applications


Markets Fashion (apparel and footwear) Retail Electronics Fast moving consumer goods Asset management Electronic vehicle identification Applications


Part numbers include: SL3S1003FUD, SL3S1013FTB0, SL3S1013FUD.


Quick reference to our documentation types.

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2 hardware offerings


1 software offerings

Engineering Services

5 engineering services

To find a complete list of our partners that support this product, please see our Partner Marketplace.


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