UCODE 7
The NXP UCODE 7 is an UHF 860–960 MHz RFID tag IC, with 128-bit EPC (96-bit pre-serialized), 96-bit TID with 48-bit unique serial number, 64-bit reserved (32-bit kill + 32-bit access password), 16-bit Configuration Word, no user memory, operating at 860 MHz to 960 MHz (UHF), under EPC Global Gen2 v1.2.0, EPC Gen2 v2.0 ready ISO/IEC 18000-6C.
EPC Gen2, high sensitivity, apparel retail
Full Specifications
| Manufacturer | NXP |
|---|---|
| Frequency Category | UHF 860–960 MHz |
| Frequency | 860 MHz to 960 MHz (UHF) |
| Protocol | EPC Global Gen2 v1.2.0, EPC Gen2 v2.0 ready, ISO/IEC 18000-6C |
| Memory | 128-bit EPC (96-bit pre-serialized), 96-bit TID with 48-bit unique serial number, 64-bit reserved (32-bit kill + 32-bit access password), 16-bit Configuration Word, no user memory |
| Interface | RF (contactless backscatter), 2 antenna pads (RF1, RF2) |
| Temperature Range | -40 °C to +85 °C |
| Form Factor | Bare die (8" wafer 460×505 µm, 12" wafer 480×525 µm, bumped or large pads), SOT886 XSON6 package (1.0×1.45×0.5 mm) |
| Security | 32-bit kill password (permanent disable), 32-bit access password, (Perma)LOCK command, factory-locked TID with 48-bit unique serial number |
Engineering Brief
The NXP UCODE 7 (SL3S1204) is a leading-edge EPC Gen2 UHF RFID chip optimized for retail and fashion inventory management. It delivers best-in-class RF performance with -21 dBm read sensitivity and -16 dBm write sensitivity, enabling long read ranges and fast inventorying of dense tag populations. Key features include factory pre-serialization of the 96-bit EPC, parallel encoding (100 tags in 60 ms), a Tag Power Indicator for optimized encoding, and a Product Status Flag for EAS applications. Available in wafer form (8" and 12", standard or large pads) and SOT886 package, with broadband design for worldwide regulatory compliance.
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Typical Applications
Standards & Compliance
Frequently Asked Questions
What is the read sensitivity of the NXP UCODE 7?
The UCODE 7 offers -21 dBm read sensitivity and -16 dBm write sensitivity, delivering best-in-class RF performance for long read ranges in retail environments.
Does the UCODE 7 have user memory?
No, the UCODE 7 has no user memory. It includes 128-bit EPC (96-bit pre-serialized), 96-bit TID with 48-bit unique serial number, 64-bit reserved memory for passwords, and a 16-bit configuration word.
What frequency range does the NXP UCODE 7 support?
The UCODE 7 operates in the 860–960 MHz UHF frequency range with broadband design, providing worldwide regulatory compliance for global retail deployments.
Is the UCODE 7 compatible with EPC Gen2 v2.0?
Yes, the UCODE 7 is fully compliant with EPC Global Gen2 v1.2.0 and EPC Gen2 v2.0 ready, ensuring compatibility with current and future RFID infrastructure.
How fast can UCODE 7 tags be encoded in parallel?
The UCODE 7 supports parallel encoding of up to 100 tags in just 60 milliseconds, enabling high-speed manufacturing and tagging operations for retail applications.
What security features does the UCODE 7 offer?
The UCODE 7 includes a 32-bit kill password for permanent disabling, 32-bit access password for memory protection, (Perma)LOCK command, and a factory-locked TID with 48-bit unique serial number.
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