MiFare one IC card original S50 chip access control card

型号：

原装S50

尺寸：

85.5*54*0.84（可定制）

材料：

PVC,PET,PETG等

1. The main indicator capacity is bits
Divided into sectors, each sector is a block, each block is a byte, and the block is an access unit
Each sector has an independent set of passwords and access controls
Each card has a unique serial number
Anti-collision mechanism supports multi-card operation
Power-free self-contained antenna contains encryption control logic and communication logic circuit
Data retention period It can be rewritten 10,000 times a year and read unlimited times
Working temperature: - ℃ ~ ℃ (humidity is %)
Working frequency:
Communication rate:
Within the reading and writing distance (within the reading and writing distance) Writer related)
2. Working principle of the card
The electrical part of the card only consists of an antenna and.
Antenna: The antenna of the card is a coil with only a few windings, which is very suitable for packaging into the card.
: The card consists of a high-speed (baud rate) r interface, a control unit and a bit r.
Working principle: The reader and writer sends a set of fixed-frequency electromagnetic waves to the card. There is a series resonant circuit in the card whose frequency is the same as the frequency emitted by the reader. Under the excitation of the electromagnetic wave, the resonant circuit resonates, causing the capacitor to contain The other end of this capacitor is connected with a one-way conductive electron pump to send the charge in the capacitor to another capacitor for storage. When the accumulated charge is reached, this capacitor can be used as a power supply to provide operating voltage for other circuits. Data is sent out or received from the reader/writer.