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card access control
The EM4100 (previously named H4100) is a CMOS integrated circuit for use in electronic Read Only RF Transponders. The circuit is powered by an external coil placed in an electromagnetic field, and gets its master clock from the same field via one of the coil terminals. By turning on and off the modulation current, the chip will send back the 64 bits of information contained in a factor y pre-programmed memory array. The programming of the chip is performed by laser fusing of polysilicon links in order to store a unique code on each chip. The EM4100 has several metal options which are used to define the code type and data rate. Data rates of 64, 32 and 16 periods of carrier frequency per data bit are available. Data can be coded as Manchester, Biphase or PSK. Due to low power consumption of the logic core, no supply buffer capacitor is required. Only an external coil is needed to obtain the chip function. A parallel resonance capacitor of 74 pF is also integrated.
TK4100 is compatible. EM4169/T5567/T5557 or custom chip is available.
64 bit memory array laser programmable
Several options of data rate and coding available
On chip resonance capacitor
On chip supply buffer capacitor
On chip voltage limiter
Full wave rectifier on chip
Large modulation depth due to a low impedance modulation device
Operating frequency: 125kHz
Very small chip size convenient for implantation
Very low power cons
Applications: Bank, school, enterprise , access control, parking system
A) Card material: PVC, polyester, ABS, PET, PETG, combination
B) Card size: CR80 (54 x 85. 6mm) , CR50, custom size
C) Options: hole punch, signature panel, loco or hico mag. strip, foil, hologram image, embossing letter and number
D) Color: white glossy, white matte, full color or custom design
E) Chip available: EM, TK, Mifare, utralight, UCODE, ICODE, Simens, Temic, AT series etc.
F) Applications: certificate ID card, access control, transportation