PCF7936AS ID46 philips transponder chip

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General Description The PCF7936, HITAG 2 is a programmable Security Transponder employing mutual authentication ideally suited for contactless authentication and memory access between a basestation and the transponder. The transponder meets the security and performance requirements of modern vehicle immobiliser applications. Excellent device sensitivity (large distance) and short authentication time ensure easy application and outstanding system performance. The transponder provides 256 bit of non-volatile memory (EEPROM) from which 128 bit are reserved for user data storage. User data and configuration data may be exchanged in cipher mode for advanced prepersonalisation techniques. Memory access flags support read and/or write protection of data. The device performs a fast mutual authentication algorithm, employing a Random Number, Secret Key and Passwords. In addition the HITAG 2 features a factory programmed 32 bit unique identification number to enable unambiguously device identification. The HITAG 2 features two Read Only modes for downward compatibility with common Read Only systems. The transponder power supply and system clock is derived from the magnetic component of the RF field generated by the basestation. Due to low power consumption the HITAG 2 provides excellent sensitivity in read and write mode. The transponder is assembled in a small leadless stick shaped plastic package.

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TEAKEY AUTO ELECTRONIC TECHNOIOGY.CO.,LIMITED

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