Higgs-9 vs UCODE 8
Compare Alien Higgs-9 (496-bit EPC, 128-bit user memory) vs NXP UCODE 8 (128-bit EPC, Brand Identifier). Gen2v2 features, security, and anti-counterfeiting.
Side-by-side specs
| Spec | Higgs-9 | UCODE 8 |
|---|---|---|
| Frequency | 860–960 MHz (UHF) | 840–960 MHz |
| Protocol | EPC Class 1 Gen 2 (ISO/IEC 18000-63), EPC Gen2v2 | EPC Gen2v2 (ISO/IEC 18000-63) |
| Memory | 496 bits EPC memory / 128 bits user memory / 896 bits total | UCODE 8: 128-bit EPC, 0-bit User / UCODE 8m: 96-bit EPC, 32-bit User; 96-bit TID (factory-locked), 64-bit Reserved (32-bit Kill + 32-bit Access password) |
| Interface | RF (contactless) | RF (contactless) |
| Temp Range | -40°C to +85°C | -40°C to +85°C |
| Form Factor | Die/wafer for inlay manufacturing | Wafer (8" stealth/12" conventional/plasma dicing, 120 µm thick, Large Pads: ~465×475 µm die, polyimide spacer) |
| Security | 32-bit access and kill passwords, EPC Gen2v2 authentication features, untraceable command support | 32-bit Access password, 32-bit Kill password, Brand Identifier (16-bit factory-locked, scrambled with RN16 for anti-counterfeiting), Untraceable (EPC Gen2v2), Memory Safeguard… |
Verdict
FAQ
What is the memory difference between Higgs-9 and UCODE 8?
Higgs-9 offers 496 bits of EPC memory and 128 bits of user memory (896 bits total), while UCODE 8 provides 128-bit EPC with 0-bit user memory in the standard variant, or 96-bit EPC with 32-bit user memory in the 8m variant. Higgs-9 provides approximately 3.9 times more EPC capacity than UCODE 8.
Does UCODE 8 have better anti-counterfeiting features than Higgs-9?
Yes, UCODE 8 includes a factory-locked 16-bit Brand Identifier that is cryptographically scrambled with RN16 for authentication, plus Memory Safeguard with ECC and parity checking. Higgs-9 lacks the Brand Identifier feature but supports standard EPC Gen2v2 security including untraceable commands and password protection.
Which chip operates at a wider frequency range?
UCODE 8 operates at 840–960 MHz, extending 20 MHz lower than Higgs-9's 860–960 MHz range. Both cover the primary global UHF RFID bands, but UCODE 8's slightly broader range may offer marginal compatibility advantages in certain regional implementations.
Sourcing Higgs-9 or UCODE 8 in volume?
Roxtron builds custom RFID and NFC products around both Higgs-9 and UCODE 8. Tell us your project — quantities, form factor, timeline — and we'll come back within 24 hours with pricing and lead times.