One, MiFare one IC S50 key indicators
● capacity of 8K-bit EEPROM
● divided into 16 sectors, each sector for four, each 16 bytes to block access unit
● Each sector has a separate set of passwords and access control
● Each card has a unique serial number for 32
● with anti-collision mechanism supports multi-card operation
● No power, comes with an antenna, embedded encryption control logic and communication logic circuit
● Data retention period of 10 years, can be rewritten 100,000 times, read unlimited
● Working temperature: -20 ℃ ~ 50 ℃ (humidity of 90%)
● Operating frequency: 13.56MHZ
● Communication speed: 106 KBPS
● Reading distance: within 10 cm (and reader related)
The thickness of the card: 0.88 + -0.002MM
Two, MiFare one IC S70 key indicators
● capacity of 32K-bit EEPROM
● is divided into 40 sectors, 32 sectors in which each sector of the storage capacity of 64 bytes is divided into four blocks, each block of 16 bytes;
8 sectors each sector storage capacity of 256 bytes is divided into 16 blocks, each block of 16 bytes; a block access unit
● Each sector has a separate set of passwords and access control
● Each card has a unique serial number for 32
● with anti-collision mechanism supports multi-card operation
● No power, comes with an antenna, embedded encryption control logic and communication logic circuit
● Data retention period of 10 years, can be rewritten 100,000 times, read unlimited
● Working temperature: -20 ℃ ~ 50 ℃ (humidity of 90%)
● Operating frequency: 13.56MHZ
● Communication speed: 106 KBPS
● Reading distance: within 10 cm (and reader related)
Three, M1 RF card and reader communication
Illustrated below:
Fourth, the working principle
Electrical part of the card by only one antenna and the ASIC components.
Antenna: The antenna is only a few cards winding coil group, it is suitable for packaging into IS0 card.
ASIC: ASIC card by a high-speed (106KB baud rate) of the RF interface, a control unit and an 8K-bit EEPROM components.
How it works: reader sent a group of fixed-frequency electromagnetic waves to the M1 card, there is a series resonant LC circuit within the card, its frequency and News
Write the same frequency emitted in the electromagnetic wave excitation, LC resonant circuit resonance, so that the charge in the capacitor has, in this electric
Other end of the content, then there is a single conduction electron pump, and the capacitive charge storage capacitor to another within, when the accumulated charge
Reaches 2V, this capacitor can be used as power supply operating voltage of the other circuits, the card data transmitted out or take-reader data.
