Bookmark and Share

Contact us



Contact : Summer 



SKYPE: skpye-Click To Talk

EM4450 1Kbit Read/Write contactless Identification card

EM4450 1Kbit Read/Write contactless Identification card
Product Description

The EM4450 is a CMOS integrated circuit meant for use in electronic Read/Write RF Transponders. The chip contains 1K Little bit of EEPROM which is often configured through the user, allowing a write inhibited area, a read protected area, along with a read area output continuously at turn on. The memory can be secured utilizing the 32 bit password for all those write and browse protected operations. The password could be updated, but never read. The fixed code serial number and device identification are laser programmed making every chip unique.

The EM4450 will transmit data on the transceiver by modulating the amplitude in the electromagnetic field, and receive data and commands in a similar way. Simple commands will enable to publish EEPROM, to update the password, to see a certain memory area, and to reset the logic.

The coil in the tuned circuit will be the only external component required, all remaining functions are integrated from the chip.

We provide white EM4450 contactless identification card and pre printed offset EM4450 contactless identification card.



-1 K amount of EEPROM organized in 32 words of 32 bits

-32 bit Device Serial Number (Read Only Laser ROM)

-32 bit Device Identification (Read Only Laser ROM)

-Power-On-Reset sequence

-Power Check for EEPROM write operation

-User defined Read Memory Area at Power On

-User defined Write Inhibited Memory Area

-User defined Read Protected Memory Area

-Data Transmission carried out by Amplitude Modulation

-Two Data Rate Options 2 KBd (Opt64) or 4 KBd (Opt32)

-Bit Period = 64 or 32 periods of field frequency

-170pF±2% on chip Resonant Capacitor

--40 to +85°C range

-100 to 150 kHz Field Frequency range

- On chip Rectifier and Voltage Limiter

-No external supply buffer capacitance needed on account of low power consumption

- For sale in chip form for mass production





-Automotive Immobilizer with rolling code

-High Security Hands Free Access Control

-Industrial automation with portable database

-Manufacturing automation

-Prepayment Devices


-          Dimension: 85.60 x 53.98mm  CR80  or custom

-          Material : PVC , PET, PC, PET-G, Paper

-          Thickness : 0.84 + - 0.02mm

-          Card surface: Matt/ glossy laminated



-          printing option: offset printing/ silkscreen printing/digital printing

-          Magnetic strip : LoCo 300oe,650oe, HICO 2750 oe ,4000 oe

-          Magnetic strip : LoCo ( black) , HICO ( black/silver/gold)

-          Hole punching, Embossed, Hologram

-          Hot Stamping: silver/gold or custom

-          Thermal print number/ barcode, UV inkjet print number/barcode, Inkjet number/barcode, laser number

-          Signature: white or transparent

-          Silver/gold metallic

-          Laser background

-          Epoxy effect on surface

-          UV embossing logo