UCODE 8/8m
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
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.
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Typical Applications
Standards & Compliance
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.
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Cross-manufacturer alternatives
Sourcing NXP UCODE 8/8m in volume?
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