Alien® H4 Chip

Higgs-4 operates at extremely low power levels yet still provides sufficient backscatter signal to read tags at extended range. It can also be programmed at low RF power and at high speed using Alien’s Quick Write™ single instruction bank-write capability. Blast Write™ can also be used to program multiple tags simultaneously for mass-encoding in high-volume retail applications. Higgs-4 also fully supports the latest industry standard serialization schemes.
Higgs-4 offers a mass-market optimized but flexible memory architecture that provides for the optimum allocation of EPC and User memory for different use cases such as legacy part numbering systems and service history. User memory can also be read and or write locked on 32-bit boundaries, supporting a variety of public/private usage models.
Higgs-4 contains a number of unique advanced features. Dynamic Authentication™ provides a unique non-reproducible fingerprint that can be used for anti-cloning and anti-counterfeiting.
The IC also features factory programmed 64-bit serial number that cannot be altered. In conjunction with the EPC code, this provides a unique identification for the tagged item.

What are Inside of UHF RFID Tags?

A basic UHF RFID tags are comprised of an antenna and the IC.

Antenna – A tag’s antenna is unique to that specific type of tag and its job is to receive RF waves, energize the IC, and then backscatter the modulated energy to the RFID antenna.

Integrated Circuit (IC)/Chip – the integrated circuit, also called the chip, contains four memory banks, processing information, send and receive information, and anti-collision protocols. Each IC type is unique, and there are only a handful of manufacturers. The main variation between ICs is the number of bits in the respective memory banks.

The four memory banks are as follows:
* EPC Memory Bank – contains the Electronic Product Code which can vary in length from 96 to 496 bits. Some manufacturers use a randomized, unique number, while others use random repeating numbers.
* User Memory Bank – the User memory bank can range from 32 bits to over 64k bits and is not included on every IC. If the tag does possess a User memory bank, it can be used for user defined data about the item. This could be information like item type, last service date, or serial number.
Reserved Memory Bank – the Reserved memory bank contains the access and lock passwords which enable the tag memory to be locked by the user and require a password to view or edit.
* TID Memory Bank – the TID memory bank contains the Tag Identifier which is a randomized, unique number that is set by the manufacturer and cannot be changed. In order for the reader to read this number instead of the EPC, the reader settings must be changed to accommodate.
Because there is a chance that a tag’s EPC number is not unique, it is imperative to check before purchasing. Specifications may denote either “unique, randomized EPC number” or “Not guaranteed to be unique” (or some similar phrase). If you purchase a tag without a unique randomized EPC number, it may need to be reencoded with a new, specific number. RFID readers are not able to differentiate between two tags that share the same EPC value.

The EPC number of each tag is read to identify the tag as well as the item that is tagged. If no software is used, the tag will simply read the EPC number; but, by incorporating software, it is possible to associate that number with a name, serial number, or even a picture on a database.

Alien H3 Chip

Alien H3 operates at extremely low power levels yet still provides sufficient backscatter signal to read tags at extended range. H3 can also be programmed at low RF power and, in conjunction with a custom command – LoadImage – be programmed at high speed. Alien H3 is implemented in a low cost CMOS process and uses proven and cost effective EEPROM technology.

Alien H3 offers a flexible memory architecture that provides for the optimum allocation of EPC and User memory for different use cases such as legacy part numbering systems and service history. User memory can also be read and or write locked on 64-bit boundaries, supporting a variety of of public/private usage models.

The IC also features a factory programmed 64-bit serial number that cannot be altered. In conjunction with the EPC code, this provides a unique “fingerprint” for the tagged item.

› Meets EPCglobal Gen2 (V 1.2.0) as well as ISO/IEC 18000-6C
› Worldwide operation in the RFID UHF bands (860-960 MHz)
› 800-Bits of Nonvolatile Memory
› 96-EPC Bits, extensible to 496 Bits
› 512 User Bits
› 64 Bit Unique TID
› 32 Bit Access and Kill Passwords
› Pre-Programmed with a unique, unalterable 64-bit serial number
› User Memory can be Block Perma-Locked as well as read password protected in 64 Bit Blocks
› Supports all Mandatory and Optional Commands including Item Level Commands
› Custom Commands for high speed programming;30 tags per second for the 96-bit EPC number
› Low power operation for both read and program
› Exceptional operating range, up to 10m with appropriate antenna

› Supply Chain Management
› Distribution Logistics
› Product Authentication
› Asset Inventory and Tracking
› Baggage Handling and Tracking
› Item Level Tagging

UHF Alien Higgs3

Alien Higgs3 is a highly integrated single chip UHF RFID Tag IC. The chip conforms to the EPC global Class 1 Gen 2 specifications and provides state-of-the-art performance for a broad range of UHF RFID tagging applications. Higgs3 offers a flexible memory architecture that provides of the optimum allocation of EPC and User memory. The IC also features a factory programmed 64-bit serial number cannot be altered.

NXP Mifare 1k s50 chips

NXP mifare 1k chips, which worked at high frequency of 13.56 Mhz whipped up a thunderstorm.

It was no longer merely bear UID code or passwords, it extended the multiple functions, up to 1kB memory organized in 16 independent sectors, each sectors could sets an application and its passwords.

It is amazing function, which make multiple applications in one card possible, beside it contains a logical counter, which allows it able to conduct plus and deduct algorisms.

It was so popular as if all the RFID cards bear this Mifare 1k chip in one night. It is still the most welcome chip in the market.

Passive RFID UHF IC EM4123

The RFID UHF IC EM4123 chip is used in passive UHF read-only transponder applications. It is powered up by an RF beam transmitted by the reader, which is received and rectified to generate a supply voltage for the chip. A pre-programmed code is transmitted to the reader by varying the amount of energy that is reflected back to the reader. It implements a robust and fast anti-collision protocol.

The EM4123 is frequency independent and can be used for RF coupled applications where reading ranges in excess of 10 m and reading rates of 120 tags per second at 256 kbit/s can be attained. The circuit is backscattering data using load modulation. Therefore the reader should be able to detect ASK and PSK modulated carrier.

EM4123 Benefits:
* Anti-collision suited for fast moving objects
* Very low current consumption, long range solution
* Easy to use, only pure CW RFID reader needed (No dense reader mode issue)
* Protocol and coding backward compatible with EM4122 and EM4222
* Low cost solutions

EM4123 Solutions:
The chip is ideal for applications where long range, high-speed item identification is required:
* Supply chain management
* Tracking and tracing
* Access control
* Asset control
* Licensing
* Auto-tolling
* Animal tagging
* Sports event timingconcerns for retail applications
* Extended temperature range (–40°C to +85°C)

More UHF IC Chip: Passive UHF RFID IC EM4126 , EM4324 UHF RFID IC , EM4325 UHF RFID IC


The EM4133 is a CMOS integrated circuit intended for use in passive ontactless Read/Write transponders fully compliant with the ISO/IEC 15693 standard.

The user’s configurable 448 bit EEPROM memory is organized in 14 words of 32 bits.

Each memory word can be write protect or irreversibly locked. The 32 bit password guaranties a good level of security for the protection of the data memory integrity. Each device contains a 64 bit unique serial number.

The ISO 15693 anticollision algorithm allows operating more tags in the field simultaneously. Moreover, the advanced Quiet Storage feature permits to have faster inventory processes in multi dimensional environments where the reader is multiplexing several antennas and the tags can be in any orientation inside the reader field.

The EM4133 is completely ISO/IEC 15693 compliant. It includes all ISO/IEC15693 mandatory and most part of the optional features, a set of attractive and useful custom commands.

Access Control
Supply Chain Management and ePedigree
Asset management

ATT5557 chips in access control system

While as technology developed, the traditional EM4100 chip is no longer worked well, because the ID number could be easily duplicated, which make its safety severely be doubted.

Then ATA5557 chips emerged in the stage, it is a chip with pin code embedded, which allow user to set up the password for safety concerns. To better protect the password, this T5557 chip also adopt a interesting settings, which if the password misread for over 3 times, the chip will permanently locked and can not be used any more.

The market’s response is so appreciated that access control systems based on T5557 chips rapidly occupy the market.

What is difference between the T5551 family and the T5557 technology?

Some customers are using the T5550, T5551, T5554 proximity card and tag for their RFID applications.

Due to the change of technology recently, above three RFID chips have been replaced by the T5557. The T5557 has a T5550/51/54 compatible mode. This mode will support nearly all features of the T5550/51/54 family. In addition, customers have the benefit of using the extended mode of the T5557 which will provide a lot of additional features. There are some small differences between the T5550/51/54 family and the T5557, because Atmel has improved the communication between reader and tag and this will give higher security level and an easier encoding of the data on the reader side.

NXP to Release More Sensitive UHF Chip With New Functionality

Global IC technology company NXP Semiconductors has released a new chip aimed at being more sensitive and easier to assemble into labels, with brand-identification features. The UCODE 8 RAIN RFID chip is designed to make retail and other RFID technology deployments easier and more effective, the company reports. The UCODE 8 is the latest in the company’s UCODE family of chips that are built into ultrahigh-frequency (UHF) RFID labels by global label manufacturers.

The new chip features 20 percent less power consumption compared to its closest competitor, according to NXP, based on increased sensitivity, and also offers fast and automatic response to interrogations from UHF readers in all global regions. What’s more, it comes with the capacity to include a dedicated ID number for a company using the label to provide brand authentication.

In addition, the new chip’s pad structure is designed to better accommodate the application of glue, in order to ensure a better connection between the chip and the antenna, thereby allowing for higher assembly speed and a more reliable, robust label for label manufacturers. These gains, says Ralf Kodritsch, NXP’s RFID solutions director, will enable retailers and brands to more effectively meet the needs of omnichannel sales by better understanding inventory levels and locations globally.

The chip’s greater sensitivity comes from the company’s engineering on the analog and digital portions of the chip, Kodritsch says. “We have also put a lot of focus in process technology,” he explains. As a result of this effort, the chip offers -23dBm read sensitivity.

The chip is available in two versions: one with 32 bits of user memory, and one without user memory. It comes with write sensitivity of -18dBm writing at a rate of 3.6 milliseconds for a full 96-bit Electronic Product Code (EPC) number. In the case of brand authentication, the chip features the ability for NXP to encode a brand identifier to chips for large brands. The chip could then be read when purchases are made, or when goods are received from a distribution center, and any label lacking that brand-identification number could be identified before the product ends up in consumers’ hands. The auto-adjust feature in the chip enables it to be read faster and more effectively, no matter what region of the world it is in or to what material or product the label is applied. For instance, although the UHF band covers 860 MHZ to 960 MHz, Europe uses the UHF 865 to 868 MHz frequency range, while North America uses 902 to 928 MHz.

Currently, tags may not be read as reliably in a different region of the world if they were built for a specific frequency band. “One label may be optimized for a particular region,” Kodritsch says, such as Asia, and then be shipped through a distribution center in Europe, where it must be interrogated with a different frequency, and then to a store in North America with yet another frequency within the UHF band.

The assembly of labels with the UCODE 8 is made easier due to the unique shape of the chip’s pads. It comes with a four-sided pad structure that provides dual-axis glue spacer (space for glue to affix the chip to the antenna) along with the UCODE’s standard, corrosion-free, large-area gold bumps that ensure a better application of glues and thus faster, more effective assembly as the chips are affixed to antennas.

Although the chip is being marketed as a solution to support omnichannels in the retail sector, Kodritsch says, it is also intended for use in other industries. “Retail is the biggest market today,” he states, “but the UCODE 8 is perfectly suited for other applications in industrial, medical and fast-moving consumer goods sectors.”

The new chip is being sampled in July 2017 and is expected to be made commercially available in September. The company is demonstrating the new chip at its booth at RFID Journal LIVE! 2017, being held this week in Phoenix, Ariz. It has thus far been tested by Auburn University’s RFID Lab, Kodritsch reports, “and it’s already produced very promising results.”