EM4423 dual-band NFC Type2 and EPC GEN2V2 transponder chip

Characteristics

Dual frequency inlay, one step production

Shared UID

Shared storage area

Minimum write operation tolerance is 100,000 cycles

Minimum 10 year data retention period

Extended temperature range (-40°C to +85°C)

Cut wafer, 3/6-mil thickness, gold ball

HF/NFC interface

Comply with ISO/IEC 14443A -3

Fully compliant with the NFC Forum Tag Type 2 specification

Provide NDEF data structure configuration

Communication rate 106kbps

7-byte UID, serialized like UHF interface

1920-bit user storage area

Support for anti-modification of functional containers (CC) and static/dynamic lock bits

N/s NFC memory area locking mechanism

Access counter increases during read

Optional UHF memory map

Optional read-only locking

Optional failure attempt limit

17pF or 50pF NFC on-chip resonant capacitor

UHF/EPC interface

ISO/IEC 18000-63 compatible

EPC Gen2 V2 compatible

Support for multi-vendor chip serialization (MCS)

128-bit or 224-bit UII/EPC

96-bitTID, same as HF interface serialization

160-bit or 64-bit user storage area

32-bit access and user password

-19 dBm typical IC read sensitivity

-15 dBm typical IC write sensitivity

Write quickly with the BlockWrite command

Permanent lock on user store

Optional HF memory map

Access counter status readable

application

NFC

product information

Wifi, Bluetooth pairing

Smart poster, advertising

Coupon, loyalty program

EPC

Supply Chain Management

Tracking and traceability

Container identification

asset Management

The EM4423 corresponds to the latest generation of EM microelectronic contactless devices, bringing innovative features to the NFC and UHF EPC worlds. The chip combines two functions in a single die: UHF EPC technology is used for long-distance applications, and NFC technology is used to exchange data at close range. Both protocols share a common UID.

Target applications and market segments include retail, product certification or NFC smart posters.

The EM4423-based tag brings several benefits through the UHF communication interface: inventory counting, product returns and consumer privacy. By using NFC-enabled smartphones, the same tags also enable new marketing services such as product information or loyalty programs.

The chip is a dual-band device that supports ISO / IEC 14443 Type A, NFC Forum Type 2 specifications, ISO / IEC 18000-63 and EPC Gen2 V2. Most importantly, additional features have been added to provide chip privacy. On the NFC interface side, the smart counter increments its value each time the end user reads an NFC message.

Each chip is given 96 unique unidentifiable unique identifiers (UIDs) at the time of production to ensure complete traceability. Both RF protocols use the same UID number. In the ISO / IEC 14443 anti-collision process, the transponder chip sends back 7 bytes, the 96-bit portion.

The EM4423 provides two non-volatile memories for access by two RF air interfaces. Two memories are partitioned to implement multiple applications. Each chip comes pre-programmed with 96-bit EPC encoding to support multi-vendor chip serialization (MCS).

The EM4423 supports an optional BlockWrite command for fast encoding of the 96-bit EPC. The EM4423 also supports optional non-traceable commands to hide part of the tag's memory.