The EM4325 RFID IC is a versatile and multipurpose, battery-assisted passive chip with integrated temperature sensor. It is a class-3 Gen2 part and is compliant with ISO/IEC 18000-6:2010 type C and type D as well as EPC class-1 Gen2. The chip offers an advanced feature set leading to a perfomance beyond that of standard Gen2 chips and can be either battery powered or beam powered by the RF energy transmitted from a reader.
It is claimed to offer superior reading range and reliability compared to purely passive RFID solutions. The EM4325 further contains 4 kbits of high speed, non-volatile memory (EEPROM).
An integrated temperature sensor monitors temperature from -40° to 64°C. In pure passive mode, the temperature sensor can be used for field-powered snapshot readings. But the chip can also be programmed to perform self-monitoring with user-programmable alarm conditions (upper and lower temperature thresholds). The sensor may also be configured to provide Simple Sensor Data reporting according to the data formats defined in ISO/IEC 18000-6 and ISO/IEC 24753.
The most unique feature of the RFID chip may be the inclusion of a programmable external interface for an auxiliary functions and a 4 bit I/O port. These interfaces open the door to advanced applications where the EM4325 can be operated either as an RFID tag or as an RFID interface or modem for embedded applications.It is available in a JEDEC-standard 8-pin TSSOP. (Contact company for pricing — available now)
By Christina Nickolas
EM Microelectronic , Marin , Switzerland
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