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Home / RFID CARD / LF 125KHz / RFID Card Low Frequency IC EM4205/4305
RFID Card Low Frequency IC EM 4205 4305

RFID Card Low Frequency IC EM4205/4305

Blank or customized printing RFID card with choice of dimensions available. EM4205/4305 contains a factory programmed 32 bit UID (unique identifier number). The communication protocol of EM4205/4305 is compatible with EM4469/4569 family.

 

SKU: LFEM02 Category: LF 125KHz Tags: 32-bit UID, 512-Bits user memory, Access Control, Animal Identification, EM, ISO11784, ISO11785, LF, proximity card, Waste management standard (BDE)
  • Description
  • Additional information
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Description

EM4205/4305 is a CMOS integrated circuit intended for use in Read/Write RF transponders. The main difference between the EM4205 and EM4305 is that:

  • EM4305 are bumped with enlarged pads for the two coil inputs. The enlarged bumped pads of the EM4305 transponder are intended for direct antenna connection avoiding the need of a module.
  • EM4305 offers a 330pF resonant capacitor option.

The IC is powered by picking up energy from a continuous 125 kHz magnetic field via an external coil, which together with the integrated capacitor form a resonant circuit. 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 bi-phase and Manchester data encodings. The EM4205/4305 operating modes are stored in the EEPROM configuration word. All EEPROM words can be write-protected by setting protection bits.

Additional information

Operating Frequency

LF (100-150 kHz)

Data Encoder

Biphase, Manchester

Resonant Capacitor

210pF or 250pF(EM4205), 210pF, 250pF or 330pF (EM4305)

Working Temperature

-40°C to +85°C

ISO/IEC Support

ISO 11784 / 11785 Standard Compliant

EEPROM

512 bit EEPROM organised in 16 words of 32 bit

UID Type

32 bit unique identifier

Password Protection

32 bit Password read and write protection

Lock feature

converts EEPROM words in Read Only

Multi-purpose data rate

8, 16, 32, 40 and 64 RF clocks

Add On

customized, Dual RFID Frequencies, Magnetic Stripe

Printing

Blank, customized, offset printing, screen printing

Dimensions

3.375" x 2.125", CR80, customized

Material

PVC, ABS, BioPVC, PET

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