UHF 860–960 MHzNXP

UCODE DNA

Name: NXP UCODE DNA
Brand: NXP

The NXP UCODE DNA is an UHF 860–960 MHz RFID tag IC, with 256 bit EPC (G2iM) or 128–448 bit EPC (G2iM+), 640 bit User Memory (segmentable in G2iM+), 96 bit TID with 48-bit unique serial number, 112 bit User TID, 32-bit Kill Password, 32-bit Access Password, 32-bit User Password (G2iM+), operating at 840–960 MHz (UHF), under EPC Class-1 Generation-2 UHF RFID (EPCglobal v1.2.0) ISO/IEC 18000-63.

Crypto-enabled RAIN RFID IC with AES-128 for brand protection

Official Datasheet ↗

Frequency

840–960 MHz (UHF)

Protocol

EPC Class-1 Generation-2 UHF RFID (EPCglobal v1.2.0), ISO/IEC 18000-63

Memory

256 bit EPC (G2iM) or 128–448 bit EPC (G2iM+), 640 bit User Memory (segmentable in G2iM+), 96 bit TID with 48-bit unique serial number, 112 bit User TID, 32-bit Kill Password, 32-bit Access Password, 32-bit User Password (G2iM+)

Interface

RF (contactless backscatter), VDD and OUT pads for external supply and digital I/O (G2iM+)

Temp Range

-40 °C to +85 °C (ambient)

Form Factor

Wafer (615 µm × 475 µm die, 120 µm thick, 7 µm polyimide spacer, Au bumps), XSON6/SOT886 (1.0 × 1.45 × 0.5 mm)

Full Specifications

Manufacturer	NXP
Frequency Category	UHF 860–960 MHz
Frequency	840–960 MHz (UHF)
Protocol	EPC Class-1 Generation-2 UHF RFID (EPCglobal v1.2.0), ISO/IEC 18000-63
Memory	256 bit EPC (G2iM) or 128–448 bit EPC (G2iM+), 640 bit User Memory (segmentable in G2iM+), 96 bit TID with 48-bit unique serial number, 112 bit User TID, 32-bit Kill Password, 32-bit Access Password, 32-bit User Password (G2iM+)
Interface	RF (contactless backscatter), VDD and OUT pads for external supply and digital I/O (G2iM+)
Temperature Range	-40 °C to +85 °C (ambient)
Form Factor	Wafer (615 µm × 475 µm die, 120 µm thick, 7 µm polyimide spacer, Au bumps), XSON6/SOT886 (1.0 × 1.45 × 0.5 mm)
Security	32-bit Kill Password, 32-bit Access Password, 32-bit User Password (G2iM+), bank-wise read protection (EPC, TID, User Memory), BlockPermalock, tag tamper alarm (G2iM+), conditional read range reduction, digital switch/data transfer mode (G2iM+)

Engineering Brief

The UCODE G2iM/G2iM+ family comprises high-sensitivity (-17.5 dBm) Gen2 UHF RFID chips optimized for retail, fashion, and authentication. The G2iM offers 256-bit EPC and 512-bit user memory, while the G2iM+ extends this with segmentable user memory (up to three access-level zones), 128–448 bit EPC, external supply mode (boosting sensitivity to -27 dBm), tag tamper alarm, digital I/O, and conditional read-range reduction for privacy. Both variants include Product Status Flag (PSF) for EAS, bank-wise read protection, 48-bit unique serial number, and support standard EPC commands plus custom ChangeConfig/EAS_Alarm commands for streamlined deployment.

Free tools for this chip

Tool
UHF Read-Range Estimator
Friis-equation range for this chip's sensitivity.

Typical Applications

Standards & Compliance

ISO/IEC 18000-63 (EPC Gen2)

Frequently Asked Questions

What frequency range does the UCODE DNA operate on?

The UCODE DNA operates in the UHF RFID band from 840–960 MHz, covering global RAIN RFID allocations including North America (902–928 MHz) and Europe (865–868 MHz).

How much memory does the UCODE DNA have?

The G2iM variant offers 256-bit EPC and 512-bit user memory, while the G2iM+ provides configurable 128–448 bit EPC and 640-bit segmentable user memory. Both include a 96-bit TID with 48-bit unique serial number and 112-bit user TID.

What is the read sensitivity of UCODE DNA chips?

The UCODE DNA achieves -17.5 dBm sensitivity in standard backscatter mode. The G2iM+ variant can reach -27 dBm sensitivity when powered via external supply mode through the VDD and OUT pads.

Does the UCODE DNA support encryption?

Yes, the UCODE DNA integrates AES-128 cryptographic authentication specifically designed for brand protection and anti-counterfeiting applications in retail and fashion industries.

What security features does the UCODE DNA G2iM+ offer?

The G2iM+ provides three-tier password protection (Kill, Access, and User passwords), bank-wise read protection for EPC/TID/User memory, BlockPermalock, tag tamper alarm, conditional read-range reduction for privacy, and digital switch/data transfer mode via the OUT pad.

Is UCODE DNA compatible with standard EPC Gen2 readers?

Yes, UCODE DNA is fully compliant with EPCglobal Gen2 v1.2.0 (ISO/IEC 18000-63) and works with standard RAIN RFID readers, while also supporting custom ChangeConfig and EAS_Alarm commands for advanced features.

Explore

Manufacturer

All NXP chips →

Standards

ISO/IEC 18000-63 (EPC Gen2)

Applications

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