Colorado Springs, Colo. — EM Microelectronic, a semiconductor company of the Swatch Group, released the EM4205/4305 family of low-frequency RFID ICs designed to fulfill the needs of animal identification, waste management, industrial logistics and access control applications. These ISO 11784/11785-compliant transponder chips meet existing livestock requirements.
ISO data integrity is critical to most animal identification applications. The EM4205/4305 prevent unauthorized modifications of this data, and their manufacturing process protects against data loss due to UV light. Extra user-programmable memory is available to log application-specific information including medicine codes, dates or owner-related data. The memory content can be password protected for integrity and/or confidentiality purposes. For pigeon race applications, these circuits have optimal fraud protection features including a 32-bit unique identifier that enables traceability, e-pedigree and product authentication.
The chips can be configured alternatively with the FDX-B protocol for livestock applications, and can be set up to Manchester data encoding with RF/64 data rate and a configuration bit for pigeon races. The EM4205/4305 are backward-compliant with the EM4569.
Beyond animal identification applications, the ICs are configurable for Bi-Phase data encoding in order to be compliant with the EN14803 waste management standard. Additionally, the EM4205/4305 fit the requirements of access control to buildings, hotel rooms or leisure parks.
Both the EM4205 and the EM4305 are powered and operated in the LF frequency range, which can be used worldwide and is known for its ability to penetrate liquids and metallic parts. The circuits support multiple purpose data rates ranging from RF/8 down to RF/64. The chips are delivered in versions featuring 210, 250 or 330 pF resonant capacitors with accuracy better than 5%. The EM4305 version of the circuit comes with enlarged pads and gold bumps which allow transponder manufacturers to directly connect the antenna wires to the chip without the need of a PCB.
