Low Frequency 125KHz EM4305 RFID Tags
The EM4305 chip is a CMOS microcircuit intended to be used in electronic ReadM/rite RF transponders. EM4305 RFID Tags are suitable for low-cost solutions like animal tagging applications.
The IC is powered by learning energy from endless 125 kHz magnetic flux via an external coil, which alongside the integrated capacitor form a resonator The IC reads out data from its internal EEPROM and sends It out by switching on and off a resasüve load in parallel to the coil employing a large modulation index Commands and EEPROM data updates are often executed by 100% AM modulation of the 125 kHz magnetic flux.
EM4305 RFID Tags features 32-bit Password read and write protection, low power consumption, 512 bit EEPROM, no external supply buffer capacitor needed, and compatible with the EM4469/4569 family, etc. Here are some central features, and you can check the EM4305 DataSheet.
- ISO 11784 / 11785 Standard Compliant
- 512 bit EEPROM organized in 16 words of 32 bit
- 32-bit unique identifier (UID)
- 32-bit Password read and write protection
- Lock feature converts EEPROM words into reading Only
- Two data encodings: Manchester and Bi-phase
- Multi-purpose data rate: 8, 16, 32, 40, and 64 RF clocks
- Reader Talk First feature
- Very low power consumption and High performances
- Compatible with EM4469/EM4569 communication protocol
- 100 to 150 kHz frequency range
- On-chip rectifier and voltage limiter
- No external supply buffer capacitor needed
- -40°C to +85°C temperature range
- Very low power consumption
- Enlarged bumped pads (200m x 400m) for direct connection of coil (EM4305)
- EM4205: 2 resonant capacitor versions 210pF or 250pF selectable by mask option. The resonant capacitor can be trimmed, at the factory level, to offer accuracy on the tolerance of 3%.
- EM4305: 3 resonant capacitor versions 210pF, 250pF or 330pF selectable by mask option
Available in plastic extremely thin small outline package; 2 terminals; body 1.1 * 1.4 * 0.46 mm
EM4305 chip data modulating and transmission is coded by Manchester modulation format. Because EM4305 is less disturbed by water and metals, EM4305 RFID Tags is widely used in:
- access control in campus
- community
- library
- parking plot
- Animal Identification according to ISO FDX-B
- Pigeon races standard
- Waste management standard (BDE)
- Industrial
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