Datasheet Details
| Part number | PCF7946AT |
|---|---|
| Manufacturer | Philips Semiconductors (now NXP Semiconductors) |
| File Size | 40.06 KB |
| Description | Security Transponder Plus Remote Keyless Entry |
| Datasheet |
 PCF7946AT Datasheet
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General Description
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.
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.