300 workers,6000㎡ dust-free workshop,11 years experience,Vender of Wal-Mart,Korea Metro ,China telecom,ISO,SGS & ROHS certificated,one hour reach Shenzhen Port,this is how we keep good quality and competitive prices for Global valued customers. Our main products cover Contact card, RFID card, CPU card and RFID tags. If any product meet your demand,please feel free to contact us.Catalog & Free samples can be sent on request. R EM MICROELECTRONIC - MARIN SA EM4100 Read Only Contactless Identification Device Description Features The EM4100 (previously named H4100) is a CMOS □ 64 bit memory array laser programmable integrated circuit for use in electronic Read Only RF □ Several options of data rate and coding available Transponders. The circuit is powered by an external coil □ On chip resonance capacitor placed in an electromagnetic field, and gets its master □ On chip supply buffer capacitor clock from the same field via one of the co……