EM4205 / EM4305

EM4205/4305 e CMOS базирана карта, която работи на честота 125KHz и може да се позлва както за четене, така и за запис на информация. Използва се основно в системо за контрол на достъп, идентификация на животни. Работният протокол е съвместим с EM4469/4569 фамилия карти. Използва се 100% АМ модулация и Bi-phase и Manchester кодиране на данните.
Чипът съдържа фабрично програмиранн 32 битов UID номер.

EM4205 / EM4305

The 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.
The IC reads out data from its internal EEPROM and sends it out by switching on and off a resistive load in parallel to the coil using a large modulation index. Commands and EEPROM data updates can be executed by 100% AM modulation of the 125 kHz magnetic field.
The EM4205/4305 supports several Bi-phase and Manchester data encodings.
The operating modes are stored in the EEPROM configuration word. All EEPROM words can be write-protected by setting protection bits. The IC contains a factory programmed 32 bit UID number.

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