Product Summary

The PCF7946AT is a security transponder plus remote keyless entry. It is compatible with the Security Transponder PCF7946AT to support mixed systems using a HITAG2 PLUS 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.

Features

PCF7946AT features: (1)Compatible with Security Transponder; (2)Rolling Code Generator for keyless entry; (3)14-pin SO package; (4)64/32 bit mutual authentication; (5)32 bit unique device identification number; (6)Fast authentication, 39ms; (7)48 bit Secret Key; (8)128 bit user memory (EEPROM).

Diagrams

PCF7946AT typical applications

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
PCF7946AT
PCF7946AT
Other

Data Sheet
Negotiable 
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
PCF7900NHN/C0K,112
PCF7900NHN/C0K,112
NXP Semiconductors
RF Transmitter FRACTIONAL-N-PLL UHF TRANSMITTER ISM
Data Sheet
0-4340: $0.62
4340-5000: $0.59
5000-10000: $0.57
PCF7900NHN/C0K,118
PCF7900NHN/C0K,118
NXP Semiconductors
RF Transmitter Fractional-N-PLL UHF Transmitter
Data Sheet
0-1: $1.27
1-25: $1.14
25-100: $1.01
100-250: $0.91
PCF7900VHN/C0L,112
PCF7900VHN/C0L,112
NXP Semiconductors
RF Transmitter FRACTIONAL-N-PLL UHF TRANSMITTER ISM
Data Sheet
0-4340: $0.62
4340-5000: $0.59
5000-10000: $0.57
PCF7900VHN/C0L,118
PCF7900VHN/C0L,118
NXP Semiconductors
RF Transmitter FRACTIONAL-N-PLL UHF TRANSMITTER ISM
Data Sheet
0-4620: $0.59
4620-6000: $0.57
PCF7921ATSM2AB1200
PCF7921ATSM2AB1200
NXP Semiconductors
RF Wireless Misc REMOTE KEYLESS ENTRY
Data Sheet
0-605: $1.28
605-1000: $1.08
1000-2000: $1.03
2000-5000: $0.98
PCF7921ATT/3601/2A
PCF7921ATT/3601/2A
NXP Semiconductors
RF Wireless Misc PCF7921ATT/TSSOP20/REEL13360
Data Sheet
Negotiable