LF 125KHz EM4305 ID Card


EM4305 RF card information introduction:

EM4305 is a CMOS integrated circuit, which is mainly used in radio frequency reading and writing cards. Its power supply is obtained by inducing a continuous 125KHZ magnetic field through an external coil. The coil and the capacitor integrated in the chip form an oscillation circuit. Fetching data and sending it out is by switching the on-off of the load resistor connected in parallel with the coil, the command and EEPROM data are updated through the 125KHZ magnetic field modulated by 100% AM, and a variety of rates and data encoding methods are optional , the option is done through the configuration word of the EEPROM. The read and write access to the EEPROM is protected by a 32-bit password. All data blocks in the EEPROM can be protected by setting the lock bit, which can turn all data blocks into only Read, the EM4305 chip contains a factory programmed 32-bit unique ID number, chip type and customer code.

EM4305 card technical parameters:
1. 16 32-bit data blocks form 512-bit EEPROM
2. 32-bit password read-write protection
3. 32-bit unique ID code
4. Compatible with 10-digit customer code
5. ISO11784/11785 standard
6. The lock bit turns the data block of EEPROM into a read-only mode. Multiple encodings (Manchester, Bi-phase, miller, PSK, FSK) and multiple rates (from 1-32K baud)
7. Working frequency range 100-150KHZ
8. On-chip rectification and voltage limiting do not require external capacitors
9. Temperature range -40°C to 85°C
10. Ultra-low power consumption

EM4305 card application scope:
Inductive smart door locks, channel systems, attendance systems, identification, property identification, process control, parking, logistics, animal identification, industrial automation, conference sign-in, labels, supermarkets, warehouse management, personnel management, security systems and other fields, also It can be extended and applied to tickets and discount cards in exhibitions, parks, hotels, restaurants and other public places. As well as the production process, postal parcels, air and rail transportation, product packaging, logistics, electronic labels, anti-counterfeiting signs, one-time tickets and many other fields in transportation and other departments.

About us
Shenzhen Yuri RFID Tag Co.Ltd, specialized in producing and marketing RFID Tag, smart card, is committed to break through the market with excellent quality, sincere and efficient service so as to achieve the group goal with unique Yuri characteristics.
Yuri company has 10years’ production experience in smart card and RFID Tag, our company has stable production line and perfect company management system. What's more, we stably cooperate with many high quality manufacturers, some products processed by OEM. Besides, we have established important relationship with microelectronics manufacturers such as NXP, EM, TI Texas instruments, INSIDE, ST, ATMEL, Huhong, Fudan, etc.

Shenzhen Yuri RFID Tag Co.Ltd, specialized in producing and marketing RFID Tag, smart card, is committed to break through the market with excellent quality, sincere and efficient service so as to achieve the group goal with unique Yuri characteristics.

Yuri company has 10years’ production experience in smart card and RFID Tag, our company has stable production line and perfect company management system. What's more, we stably cooperate with many high quality manufacturers, some products processed by OEM. Besides, we have established important relationship with microelectronics manufacturers such as NXP, EM, TI Texas instruments, INSIDE, ST, ATMEL, Huhong, Fudan, etc.