Product Summary

The PCF7941 is a single chip high performance Security Transponder and Keyless Entry controller, ideally suited for vehicle immobilizer applications that incorporate keyless entry functions. The pcf7941 is compatible with the Security Transponder PCF7936AS, for use in mixed systems that employ a STARC and a standard Security Transponder, PCF7936AS, at the same time.

Parametrics

PCF7941 absolute maximum ratings: (1)Short instruction execution time: 1us; (2)Low power consumption: 300 mA, PD 300 nA; (3)Single battery cell operation: 2.1V to 5.5V.

Features

PCF7941 features: (1)Compatible with Security Transponder, PCF7936AS; (2)RISC Programmable Keyless Entry features; (3)384 Bit EEPROM; (4)16-Pin SO package.

Diagrams

 PCF7941 pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
PCF7941ATS/3391/2A
PCF7941ATS/3391/2A

NXP Semiconductors

RF Wireless Misc PCF7941ATS/SSOP20/REEL133391

Data Sheet

Negotiable 
PCF7941ATSM2AB120,
PCF7941ATSM2AB120,

NXP Semiconductors

RFID Transponder SECURITY TRANSPONDR RISC CONTROLLER

Data Sheet

0-605: $2.16
605-1000: $1.82
1000-2000: $1.73
PCF7941ATSM2AB1204
PCF7941ATSM2AB1204

NXP Semiconductors

RF Wireless Misc REMOTE KEYLESS ENTRY

Data Sheet

0-605: $2.16
605-1000: $1.82
1000-2000: $1.73
PCF7941ATT/3601/2A
PCF7941ATT/3601/2A

NXP Semiconductors

RF Wireless Misc PCF7941ATT/TSSOP20/REEL13360

Data Sheet

Negotiable 
PCF7941ATTM2AB1200
PCF7941ATTM2AB1200

NXP Semiconductors

RF Wireless Misc REMOTE KEYLESS ENTRY

Data Sheet

0-1790: $1.82
1790-2000: $1.73
PCF7941ETT/M2AB300
PCF7941ETT/M2AB300

NXP Semiconductors

RF Wireless Misc REMOTE KEYLESS ENTRY

Data Sheet

0-1790: $1.82
1790-2000: $1.73
PCF7941XTT/C2AB370
PCF7941XTT/C2AB370


IC REMOTE KEYLESS ENTRY 20TSSOP

Data Sheet

0-2500: $1.73