PCF7946AT, PCF7947, PCF7947AT Selling Leads, Datasheet
MFG:PHILIPS Package Cooled:SOP14 D/C:182
PCF7946AT, PCF7947, PCF7947AT Datasheet download
Part Number: PCF7946AT
MFG: PHILIPS
Package Cooled: SOP14
D/C: 182
PCF7946AT, PCF7947, PCF7947AT
- Table of contents:
Info of PCF7946AT
Info of PCF7947
Info of PCF7947AT
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About PCF7946AT
PDF/DataSheet Download
Datasheet: PCF7946AT
File Size: 41018 KB
Manufacturer: PCF7946AT
Download : Click here to Download
About PCF
PDF/DataSheet Download
Datasheet: PCF
File Size: 1246073 KB
Manufacturer: Welwyn Components Limited
Download : Click here to Download
About PCF
PDF/DataSheet Download
Datasheet: PCF
File Size: 1246073 KB
Manufacturer: Welwyn Components Limited
Download : Click here to Download
PCF7946AT General Description
The PCF7946AT is a high performance monolithic Security Transponder and Remote Keyless Entry Chip ideally suited for car immobiliser applications that incorporate keyless entry functions.
The PCF7946AT transponder circuitry is compatible with the Security Transponder PCF7946AT to support mixed systems using a HITAG2PLUS and a standard Security Transponder, PCF7946AT at the same time.The Transponder circuitry meets the security and performance requirements of modern car immobiliser applications. Excellent device sensitivity (large distance) and short authentication time ensure easy application and outstanding system performance. The Transponder circuitry does not require any battery supply and full operation is granted in a Keyless Entry battery low condition.The Remote Control circuitry features a low power consumption to ensure long battery lifetime. The device supports up to four user buttons and a LED for transmission acknowledgment. Code hopping upon each button press is provided. The device features automatic re-synchronisation of the rolling code via the transponder interface.
The Transponder and rolling code algorithm employ the same security algorithm for easy system integration on the receiver side. Separate Secret Keys are provided to ensure independent code characteristics.Data rate, modulation and repetition rates of the remote transmission frame are configurable by the on-chip EEPROM.The HITAG2PLUS features a clock input as an external data rate reference for use with common PLL transmitter devices.
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