Product Names:
RF cards (Radio Frequency cards) are widely used in Enterprise / campus card, bus card, highway fees, parking lot management, residential management, and so on.
125 KHz RFID Card
Chips for choice:
EM4102, T5577, TK4100, 125 KHz Card
Mifare 1K, 4K, Untralight, 13.56MHz Card
Features
64bit Read only memory (10HEX serial number)
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 100 - 150 KHz
Very small chip size convenient for implantation
Very low power consumption