The UCODE 7xm series is the latest generation of NXP’s memory UHF tag ICs. With theleading-edge read range UCODE 7xm is well suited for applications which require highread range and also demanding an extended user memory to store data specific to customeror products. UCODE 7xm offers an user memory of 1-kbit, whereas UCODE 7xm+ supports2-kbit user memory and a 384-bit digital signature. Both products incorporate featuresknown from UCODE 7 like self pre-serialization, tag power indicator as well as theproduct status flag.

There are numbers of applications where the combination of high read range and usermemory is needed, such as: Inventory and supply chain management Process optimization (e.g in the automotive industry) Brand protection/authentication (e.g. expensive wines or branded luxuryfashion items) Automatic vehicle ID where no cryptography is required Asset tracking (e.g. for high value assets)

Key features

• Read sensitivity -19 dBm
• Write sensitivity -12 dBm
• Encoding speed: 32 bits per 1.5 milliseconds
• Up to 2-kbit user memory
• Digital signature
• Standard functionality:
  • Untraceable feature
  • Tag Power Indicator
  • Automatic self pre-serialization for 96-bit EPC
  • Integrated Product Status Flag (PSF)
  • Parallel encoding mode
• According to EPCglobal v1.2.0
• Compatible with single-slit antenna

Memory

• Up to 448-bit of EPC memory
• Supports self pre-serialization for 96-bit EPC
• 96-bit Tag IDentifier (TID) factory locked
• 48-bit unique serial number factory-encoded into TID
• 1-kbit user memory for UCODE 7xm
• 2-kbit user memory for UCODE 7xm+
• 384-bit digital signature in UCODE 7xm+
• 32-bit kill password to permanently disable the tag
• 32-bit access password
• Wide operating temperature range: -40 °C up to +85 °C
• Minimum 100.000 write cycle endurance
• Data retention 20 years

Key benefits

End user benefit

• Extended user memory of up to 2-kbit
• Brand protection feature using digital signature
• Long read/write ranges due to leading edge chip sensitivity
• Reliable operation in dense reader and noisy environments through highinterference rejection

Antenna design benefits

• High sensitivity enables smaller and cost efficient antenna designs
• Selected chip impedance enables re-use of antenna designs from UCODE 7

Label/module manufacturer benefit

• Large RF pad-to-pad distance to ease antenna design
• Symmetric RF inputs are less sensitive to process variation
• Single-slit antenna for a more mechanically stable antenna connection
• Automatic self pre-serialization of the 96-bit EPC
• Extremely fast encoding of the EPC content

Supported features

• All mandatory commands of EPCglobal v1.2.0 specification are implemented
• The following optional commands are implemented:
  • Access
  • BlockPermalock (block size of 256-bit)
  • 32-bit BlockWrite
• Implemented custom commands and features:
  • Untraceable
  • ReadSignature
  • Product Status Flag bit: enables the UHF RFID tag to be used asEAS (Electronic Article Surveillance) tag without the need for aback-end data base.
  • Tag Power Indicator: enables the reader to select only ICs/tagsthat have enough power to be written to.
  • Parallel encoding: allows for the ability to bring (multiple)tag(s) quickly to the OPEN state and hence allowing single tagsto be identified simply, without timing restrictions, ormultiple tags to be e.g. written to at the same time,considerably reducing the encoding process

UCODE 7xm can be used in combination with readers compliant with EPCglobal v1.2.0standard. For access to full UCODE 7xm family functionality firmware upgrade of thereader may be necessary.

Markets

• Logistics
• Brand protection (luxury branded fashion goods)
• Process automation

Applications

• Inventory and supply chain management
• Asset tracking
• Process optimization(e.g in the automotive industry)
• Automatic vehicle ID where no cryptography is required
• Brand protection/authentication (e.g. expensive wines or branded luxuryfashion items)
• Parking access
• Fleet management
• Loss prevention

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