UHF 860–960 MHzNXP

UCODE 8/8m

Name: NXP UCODE 8/8m
Brand: NXP

The NXP UCODE 8/8m is an UHF 860–960 MHz RFID tag IC, with 128 bits EPC / 32 bits TID / 32 bits user memory / 64 bits reserved, operating at 860–960 MHz (UHF RAIN RFID) under EPC Class 1 Gen2v2 (ISO/IEC 18000-63).

Rain RFID tag IC with enhanced sensitivity and EPC Gen2v2 features for retail and supply chain

Official Datasheet ↗

Frequency

860–960 MHz (UHF RAIN RFID)

Protocol

EPC Class 1 Gen2v2 (ISO/IEC 18000-63)

Memory

128 bits EPC / 32 bits TID / 32 bits user memory / 64 bits reserved

Interface

RF (contactless)

Temp Range

-40°C to +85°C

Form Factor

Die (wafer), available in UCODE 8 and UCODE 8m variants

Full Specifications

Manufacturer	NXP
Frequency Category	UHF 860–960 MHz
Frequency	860–960 MHz (UHF RAIN RFID)
Protocol	EPC Class 1 Gen2v2 (ISO/IEC 18000-63)
Memory	128 bits EPC / 32 bits TID / 32 bits user memory / 64 bits reserved
Interface	RF (contactless)
Temperature Range	-40°C to +85°C
Form Factor	Die (wafer), available in UCODE 8 and UCODE 8m variants
Security	32-bit access password, 32-bit kill password, EPC Gen2v2 Untraceable command, Authenticate with AES-128 (cryptographic suite), BlockPermalock

Engineering Brief

The UCODE 8/8m are NXP's high-performance UHF RAIN RFID tag ICs compliant with EPC Gen2v2 and ISO/IEC 18000-63 standards. They feature industry-leading read sensitivity (down to -23 dBm for UCODE 8m), enhanced privacy via Untraceable command, and AES-128 cryptographic authentication for secure applications. With improved performance over previous generations, these chips enable longer read ranges and faster inventory operations in retail, logistics, and anti-counterfeiting use cases.

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 is the read sensitivity of NXP UCODE 8 and 8m chips?

The UCODE 8 offers high read sensitivity, while the UCODE 8m variant achieves industry-leading sensitivity down to -23 dBm, enabling longer read ranges in challenging environments.

Does UCODE 8 support AES-128 cryptographic authentication?

Yes, UCODE 8/8m supports AES-128 cryptographic authentication as part of the EPC Gen2v2 cryptographic suite, enabling secure supply chain and anti-counterfeiting applications.

What is the memory structure of UCODE 8 tag IC?

UCODE 8/8m features 128 bits of EPC memory, 32 bits TID, 32 bits user memory, and 64 bits reserved memory including 32-bit access and kill passwords.

Is UCODE 8 compatible with EPC Gen2v2 standard?

Yes, UCODE 8/8m is fully compliant with EPC Class 1 Gen2v2 and ISO/IEC 18000-63 standards, supporting advanced features like Untraceable command for enhanced privacy.

What applications are UCODE 8 and 8m designed for?

UCODE 8/8m are designed for retail inventory, supply chain logistics, brand protection, and anti-counterfeiting applications requiring long read ranges and secure authentication.

How does UCODE 8 Untraceable command improve privacy?

The EPC Gen2v2 Untraceable command allows selective hiding of EPC or user memory during inventory, enhancing consumer privacy in retail applications while maintaining supply chain visibility.

Explore

Manufacturer

All NXP chips →

Standards

ISO/IEC 18000-63 (EPC Gen2)

Applications

Cross-manufacturer alternatives

Sourcing NXP UCODE 8/8m in volume?

Roxtron builds custom RFID and NFC products around the UCODE 8/8m — smart cards, labels, wristbands, key fobs and industrial tags. Tell us your project and we'll come back within 24 hours with pricing and lead times.

Get a quote