What do hex inverters and a class AB do in RFID reader?

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huji

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rfid reader 74hc4060

hi,
can anybody tell me what does a 74HC4060 (14 Stage Binary Counter), 74HCT04
HEX INVERTERS and a class AB do in a rfid reader circuit?? why do we divide the frequency with 32? e.g 4MHz/32=125kHz..thanx
 

rfid 4mhz

It could be due data transfer rate and modulation for 13.56 MHz transponders . It eliminates need for internal generator and dervies timing from corrier .
 

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