EM Microelectronic has been designing and producing integrated circuits for field-powered devices in consumer, automotive and industrial applications for more than 25 years. The company's product portfolio includes UHF, HF and LF RFID tag and reader ICs, UHF Battery-assisted passive (BAP) RFID chips, and customer specific integrated circuits with read/write, anti-collision for applications in Logistics and Supply Chain Management, Tracking & Tracing, Access Control, Security, Library, Laundry, Animal ID, Car Immobilization, Entry RKE and Toll Collection.

The products highlighted below give an idea on the diversity of possible applications.

Dual-Frequency NFC + RAIN® RFID

EM4423 corresponds to the latest generation of EM Microelectronic contactless devices, bringing innovative features to the NFC and EPC™ worlds. The chip combines two functionalities on one single die, the EPC technology used for long range application purposes and the NFC used to exchange data in a proximity range. Both protocols may share a common unique ID.

Targeted applications and market segments include retail, product authentication or smart NFC posters.

A tag or label based on the EM4423 provides multiple benefits and usages via the EPC communication interface like stock inventory, product returns, and data privacy. The same tag or label also enables new marketing services like product information or loyalty programs using an NFC enabled smartphone.

The chip is a dual frequency device supporting ISO/IEC14443 Type A, NFC Forum™ Type 2 specifications, ISO/IEC18000-63 and EPC Gen2 V2. Additional features have been added to provide chip privacy. For the NFC interface, the smart counter increments its value each time the NFC message has been read by the end-user.

Each chip is manufactured with a 96-bit unalterable unique identifier (UID) to ensure full traceability. The same UID number is used by both RF protocols. During an ISO/IEC14443 anti-collision procedure, the 7 bytes which are part of the 96-bit are sent back by the transponder IC.

The EM4423 offers two non-volatile memories which are accessible by both RF air interfaces. The two memories are segmented to implement multiple applications.

EM4423 supports the optional BlockWrite command, enabling the fast encoding of a 96-bit EPC. EM4423 also supports the optional Untraceable command to hide portions of memory of the tag or label.

UHF (860 MHz - 960 MHz) passive ICs

EM Microelectronic’s EM4124 UHF Gen2 Chip Earns EPCglobal® Interoperability Certification, guaranteeing that the EM4124 complies with EPCglobal's Class 1 Generation 2 UHF Air Interface Protocol. Third-party testing firm, MET Laboratories conducted EPCglobal's product interoperability tests on the EM4124 as part of an extensive hardware certification and standards compliance program for RFID chips, tags, readers, and printers.The EM4124 currently offers the longest reading distance in its class.

Through the standards compliance of the EM4124-based tags, end users are guaranteed that they will be able to use the product seamlessly around the globe. The presence of a factory-programmed TID, in addition to the usual EPC code further prevents data inconsistencies or tag cloning.

Likewise, the EM4126 is ideally suited for the use in small item-level tags for items such as jewelry and watches, where its high sensitivity allows for longer read ranges, even with a significantly smaller antenna/tag. The extended  memory of the EM4126 enable support of ISO or EPC data structures and allow for SGTIN 198 encoding as an enhanced alternative to SGTIN-96.

UHF (860 MHz - 960 MHz) Battery-assisted passive (BAP) ICs

EM4325 is a Class-3 Generation-2 (Gen2) IC with Temp Sensor & SPI Interface. The chip offers an advanced feature set leading to a performance beyond that of standard Gen2 chips and can be either battery powered or beam powered by the RF energy transmitted from a reader. In a battery assisted passive (BAP) configuration, the EM4325 offers superior reading range and reliability compared to purely passive RFID solutions.

An integrated temperature sensor in the EM4325 (supporting temperature from -40⁰C to +64⁰C) may be used in either purely passive or BAP applications. Temperature readings can be made on demand by a reader or the chip may be programmed to perform self-monitoring with alarm conditions.

EM4325 supports advanced applications (e.g. anti-tampering) by providing programmable external interfaces The chip may be configured to serve as an SPI Master or Slave device . The programmable external interfaces allow the EM4325 to function as an RF front end and protocol handler in advanced RFID tags or embedded applications. In a passive configuration, the programmable external interfaces allow the EM4325 to serve as a SPI Master with energy harvesting and provide power to external components.

HF (13.56MHz) RFID ICs

The EM4237 is the first high-secure ISO/IEC15693 compliant device offering unequalled RF performances and enabling efficient and secure solutions for anti-counterfeiting and brand protection. The EM4237 provides a universal identity card and an encrypted tamperproof digital certificate to convey the guarantee of good quality anywhere in the world.

The device's security measures are based on public stream cipher technology used to safeguard the memory data integrity and to ensure communication confidentiality between the IC and the reader. The 2k-bit of data memory can be protected by setting the appropriate access conditions and access rights.

The EM4237 is the first ISO/IEC15693 compliant device that offers long range performance with the same security mechanisms than those already in use in the ISO/IEC14443 world.

EM Microelectronic further produces Dual Interface smartcards and NFC ICs.

LF (125kHz) RFID IC’s

EM4200 is a CMOS integrated circuit intended for use in electronic Read Only RF transponders. The 128 bit unique code is stored in laser programmed ROM (64 and 96 bit version also available). Several data rate and encoding are available: Manchester, Biphase, PSK and FSK.

EM4205/4305 is a CMOS integrated circuit intended for use in electronic Read/Write RF transponders. It is suitable for low cost solutions like animal tagging applications. The IC communication protocol is compatible with the EM4469/4569 family. Available data encoding are Manchester and Biphase encoding with a memory size of 512 bit EEPROM.

The EM4450 is a CMOS integrated circuit intended for use in electronic Read/Write RF Transponders. The chip contains 1 KBit of EEPROM which can be configured by the user, allowing a write inhibited area, a read protected area, and a read area output continuously at power on.

The memory can be secured by using the 32 bit password for all write and read protected operations. The password can be updated, but never read. The fixed code serial number and device identification are laser programmed making every chip unique.

To complete our LF portfolio, we also propose analog frontend solutions for RFID readers (EM4095 and EM4097). Coupling one of these products with a microprocessor will offer you the most optimized solution for your business case.