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PCF7946AT Datasheet Security Transponder Plus Remote Keyless Entry

Manufacturer: Philips Semiconductors (now NXP Semiconductors)

Overview: .. Philips Semiconductors Product Profile Security Transponder plus Remote Keyless Entry,.

General Description

PCF7946AT The HITAG2PLUS is a high performance monolithic Security Transponder and Remote Keyless Entry Chip ideally suited for car immobiliser applications that incorporate keyless entry functions.

The HITAG2PLUS transponder circuitry is patible with the Security Transponder PCF7936AS to support mixed systems using a HITAG2PLUS and a standard Security Transponder, PCF7936AS at the same time.

The Transponder circuitry meets the security and performance requirements of modern car immobiliser applications.

Key Features

  • Compatible with Security Transponder, PCF7936AS.
  • Rolling Code Generator for keyless entry.
  • 14-pin SO package Transponder.
  • 64/32 bit mutual authentication.
  • 32 bit unique device identification number.
  • Fast authentication, 39ms.
  • 48 bit Secret Key.
  • 128 bit user memory (EEPROM).
  • EEPROM read/write in cipher mode.
  • EEPROM read/write protection capability.
  • Excellent sensitivity in read and write mode Code.

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