Specification :

It is a CMOS integrated circuit
Used in electronic read only RF transponders
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 factory 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
It 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 74pF is also integrated