Product Summary

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 PCF7936AS to support mixed systems using a HITAG2PLUS and a standard Security Transponder, PCF7936AS at the same time. The PCF7946AT meets the security and performance requirements of modern car immobiliser applications.

Features

PCF7946AT features: (1)Compatible with Security Transponder, PCF7936AS; (2)Rolling Code Generator for keyless entry; (3)14-pin SO package.

Diagrams

PCF7946AT block diagram

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