Supported
Transponders – Philips Mifare 4k (S70) (ISO 14443A)
13.56
MHz, 32768 bit (4096 byte) read/write passive RFID transponder.
Large
memory size is organised as 40 sectors, each with it’s
own security key codes
and access conditions.
This allows entirely different applications to use separate
memory sectors with
unique security keys. In addition, the Mifare cards use a
three-pass authentication
system and data encryption techniques to make the system very
secure. For this
reason Mifare cards are often used for financial or ticketing
applications where
privacy of data and reliable, secure data transactions are
essential.
The
higher frequency operation allows communication rates up
to 106 kbaud.
Memory
is organised as 16-byte Blocks. Lower half of memory has
Blocks grouped
into 4-Block Sectors. The upper half of memory has Blocks
grouped into 16-Block
Sectors. Block 0 contains a factory programmed 4-byte unique
serial number (UID)
together with other manufacturer and configuration information.
Data
can be read/written to Blocks (16 bytes) in one operation.
Mifare is widely
accepted as the Market-leading technology for ISO14443A
secure ticketing and
access control applications (Transport for London Oyster
card for example).
Mifare
is a trademark of Philips Semiconductors NV
Copyright
IB Technology (Eccel Technology Ltd, registered in England No. 5614911)
Registered Office: PO Box 747, Aylesbury, Buckinghamshire, HP22 9BG, UK.
Site last updated 12th February 2008
