Higgs-4
The Alien Technology Higgs-4 is an UHF 860–960 MHz RFID tag IC, with 544 bits total: 128 bits EPC (NVM), 128 bits User (NVM), 64 bits Reserved (passwords, NVM), 96 bits TID, 64 bits UID; 320 bits customer-programmable, operating at 860–960 MHz UHF, under EPC Class-1 Generation-2 V1.2.0 ISO/IEC 18000-6C.
EPC Gen2 UHF tag IC with 128-bit EPC, 512-bit user memory and Fast-ID for retail/inventory.
Full Specifications
| Manufacturer | Alien Technology |
|---|---|
| Frequency Category | UHF 860–960 MHz |
| Frequency | 860–960 MHz UHF |
| Protocol | EPC Class-1 Generation-2 V1.2.0, ISO/IEC 18000-6C |
| Memory | 544 bits total: 128 bits EPC (NVM), 128 bits User (NVM), 64 bits Reserved (passwords, NVM), 96 bits TID, 64 bits UID; 320 bits customer-programmable |
| Interface | RF (contactless, passive backscatter) |
| Temperature Range | -50°C to +85°C (storage), -30°C to +70°C (operating nominal) |
| Form Factor | Flip-chip (589.5 µm die, gold bumps), SOT-323 (SMD), Strap (copper-on-Kapton, JEDEC MO-283) |
| Security | 32-bit Access Password, 32-bit Kill Password, 64-bit factory-programmed unalterable UID, Dynamic Authentication anti-cloning fingerprint, BlockPermaLock (32-bit blocks), BlockReadLock |
Engineering Brief
The Higgs-4 is an industry-leading UHF EPC Gen2 IC optimized for high-volume retail and logistics applications. It features exceptional read sensitivity (-20.5 dBm) and enhanced write sensitivity (-17 dBm), enabling extended read range and fast programming. QuickWrite single-command bank-write and BlastWrite simultaneous multi-tag encoding enable throughput up to 3,600 tags/minute. The chip includes 128-bit pre-encoded serialized EPC, flexible 128-bit user memory with 32-bit block locking, and Dynamic Authentication for anti-cloning, making it ideal for item-level tagging, supply chain tracking, and brand protection.
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Typical Applications
Standards & Compliance
Frequently Asked Questions
What is the read sensitivity of the Alien Higgs-4?
The Higgs-4 has a read sensitivity of -20.5 dBm and write sensitivity of -17 dBm, enabling extended read ranges in typical UHF RFID applications.
How much memory does the Alien Higgs-4 have?
The Higgs-4 contains 544 bits total: 128-bit EPC, 128-bit User memory, 64-bit Reserved memory for passwords, 96-bit TID, and 64-bit factory UID. 320 bits are customer-programmable.
What encoding speed can the Higgs-4 achieve?
Using QuickWrite and BlastWrite features, the Higgs-4 can achieve encoding throughput up to 3,600 tags per minute for high-volume manufacturing environments.
Does the Alien Higgs-4 support anti-cloning features?
Yes, the Higgs-4 includes Dynamic Authentication fingerprinting for anti-cloning, a 64-bit factory-programmed unalterable UID, and 32-bit Access and Kill passwords for security.
Is the Higgs-4 compatible with EPC Gen2 readers?
Yes, the Higgs-4 is fully compliant with EPC Class-1 Generation-2 V1.2.0 and ISO/IEC 18000-6C standards, ensuring compatibility with all Gen2 UHF RFID readers operating at 860–960 MHz.
What is BlockPermaLock on the Higgs-4?
BlockPermaLock allows permanent locking of 32-bit memory blocks in the User and EPC banks, preventing future modification for applications requiring tamper-proof data storage.
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