The EM4450 key card is a CMOS integrated circuit intented for use in electronic Read/Write RF Transponders.

The chip contains 1 KBit of EEPROM which can be configured by the user, allowing a write inhibited area, a read protected area, and a read area output continuously at power on.

EM4450 Key Card

1. Chips: EM4450

2. Dimension: CR80 or as customer's requirement

3. Frequency: 125KHz

4. Standard ISO11785

5. Material: PVC or ABS

6. Data saved time: 10 years

7. Options: Signature panel, LOCO/HICO Magnetic Stripe, embossing letter and number, barcode, sequential

numbering, Gold/Silver card, frosted card.

8. Application: EM4450 Key Card is widely used in Parking lot system and hotel door locks, for its long inductive

distance(70-2000px), ISO Thin EM Card is widely used in Access Control System, Time and attendance, parking

lot and consuming system.

The EM4450 key card will transmit data to the transceiver by modulating the amplitude of the electromagnetic

field, and receive data and commands in a similar way. Simple commands will enable to write EEPROM, to

update the password, to read a specific memory area, and to reset the logic. The coil of the tuned circuit is the

only external component required, all remaining functions are integrated in the chip.

The memory can be secured by using the 32 bit password for all write and read protected operations. The

password can be updated, but never read. The fixed code serial number and device identification are laser

programmed making every chip unique.