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Place of Origin
HS-CODE
87-
Package & Delivery Lead Time
Detailed Description
General Description
The PCF7935, SECT is a programmable Security
Transponder employing challenge/response
authentication ideally suited for contactless
authentication and memory access between a
basestation and the transponder.
The SECT features a powerful security algorithm for
vehicle immobiliser applications. The device is fully
compatible with the PCF7931 read only and PCF7930
read/write transponder family, providing means for
downward compatibility.
The transponder features 1152 bit of non-volatile
memory (EEPROM) from which 768 bit are reserved for
user data storage. User data and configuration data
may be exchanged in password mode for advanced
pre-personalisation techniques. Memory access flags
and a 56 bit password enable read and/or write
protection of data.
The SECT performs a 48 bit challenge/response
authentication, employing a 128 bit Secret Key. In
addition the SECT supports a 32 bit device
identification number.
The transponder power supply and system clock is
derived from the magnetic component of the RF field
generated by the basestation.
The transponder is assembled in a small leadless stick
shaped plastic package. Transponder PCF7935 suitable
for various models of Alfa Romeo, BMW, Mini, Mercedes Benz,
Peugeot, Citroen, Opel Vauxhall, Mitsubishi, Volkswagen,
Audi, Seat, Skoda, Ford, Mazda, Volvo, Nissan, Chery,
Saipa and many others.
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